My GTS whinge

[Uncle Tone]

I;ll say first that the car is fantastic. Such an improvement over the last model! However, I have a few gripes.

The steering seems to do something funny when hitting mid corner bumps. The wheel twitches in your hand, and as the suspension loads and unloads over humps in the road, the wheel moves with it. I hope I've described this properly.

The gear ratios are changed in the gearbox, and not for the better!! First to fourth are spaced wider apart, and fifth is too close to fourth. Why was this changed!!

This thing DRINKS!! Hopefully this can be fixed with a tune.

Lastly,the power seems to be lacking over my old car. I did have 3.9's and a tune in the old one, but I would have thought that being a 6 litre motor it would have made up for it somewhat. I'm referring to low down power here. I used to drive my old one around between 1500-2000 rpm. To get the same performance I have to drive between 2000-2500 rpm. Could this be the cam spec making the difference? Weight? Crappy stock tune?

What have other people found jumping into their new car compared to their old one?

[nirvana]

i have been in a tuned gts and i must say it went hard for just a tune.
i didn't like the feel and sound as it went over bumps didn't feel as solid as the older models.

[OUTAtheBloo]

Ive driven a VZ with the 6.0l engine, i noticed the bottom end power (even though the car is stock)

Maybe you need to stick a stroker crank in her Tone :idea:

Dan

[CarlFST60L]

My R8 stock was almost identical to the edit, exhuast, cai, diff VY performance wise... Compared iwth similar vehicles around wakefeild over a full day of racing.... Maybe its not run in yet? Get it on a Dyno as the SOTP meter be playing up also... :lol:

The 6L has more low torque, its stronger down low, no doubt... With just CAI and a tune you can gave a good 260kwrw all day everyday...

I know what you mean about the steering feedback, i can imagine that the next few models will become far greater once they refine it... Still, 1:15.00 around wakfeild pretty well matches my edit, exhuast, diff, cai, brakes, suspension VY (on full stock street rubber)...

Get CAI + Tune and get around 260kwrw, then you gotta be happy with the power!

Also, its so great to get power down with those rears and suspension, much better diff that duals up as expected

[Sonnymad]

Lastly,the power seems to be lacking over my old car. I did have 3.9's and a tune in the old one, but I would have thought that being a 6 litre motor it would have made up for it somewhat. I'm referring to low down power here. I used to drive my old one around between 1500-2000 rpm. To get the same performance I have to drive between 2000-2500 rpm. Could this be the cam spec making the difference? Weight? Crappy stock tune?

What have other people found jumping into their new car compared to their old one?



Tone bite the bullet and pass the bullshit questions and get urself a tuna cai /exhaust & a tune and dont look back,ohh i forgot to mention these mods require you to put ur hand in ur pocket = $$$

regards sonny

[Uncle Tone]

My R8 stock was almost identical to the edit, exhuast, cai, diff VY performance wise... Compared iwth similar vehicles around wakefeild over a full day of racing.... Maybe its not run in yet? Get it on a Dyno as the SOTP meter be playing up also... :lol:

The 6L has more low torque, its stronger down low, no doubt... With just CAI and a tune you can gave a good 260kwrw all day everyday...


Get CAI + Tune and get around 260kwrw, then you gotta be happy with the power!

Also, its so great to get power down with those rears and suspension, much better diff that duals up as expected

I can't honestly say that it is stronger down low in the rev range (1500-2000), maybe cause its still tight, I've only done 1200 km in it so far. I haven't revved it past 3000 yet!!

[BigJim]

I can't honestly say that it is stronger down low in the rev range (1500-2000), maybe cause its still tight, I've only done 1200 km in it so far. I haven't revved it past 3000 yet!!

Get into it tone they loved to be thrashed from new. I had my VZ clubbie at the track with 200klm on it and only 5 days after i bought it.

[Uncle Tone]

Tone bite the bullet and pass the bullshit questions and get urself a tuna cai /exhaust & a tune and dont look back,ohh i forgot to mention these mods require you to put ur hand in ur pocket = $$$

regards sonny

Which one was a bullshit question, little mate? :stick:

My hand will go into my pocket soon enough....already talking to the bloke who tuned my last car. He'll be tuning it, and I'll be doing exactly the same as my last car. 1.8's, modded maf and all! That tune was brilliant, amazing economy, good low down power, etc. I want that exact same thing for this car.:wave:

Looking forward to our pow-wow at the nats Sonny! :D

[SV8er]

I can't honestly say that it is stronger down low in the rev range (1500-2000), maybe cause its still tight, I've only done 1200 km in it so far. I haven't revved it past 3000 yet!!

Tone , you say you have not gone past 3000 revs yet in 1200 k's , dealer told me on my VE SS to alternate and dont stick to same revs and make sure you alternate to at least 4500 revs + every now and then to bed motor in correctly ..

Can anyone clarify this ?

Cheers

[Uncle Tone]

Tone , you say you have not gone past 3000 revs yet in 1200 k's , dealer told me on my VE SS to alternate and dont stick to same revs and make sure you alternate to at least 4500 revs + every now and then to bed motor in correctly ..

Can anyone clarify this ?

Cheers

I did the exact same thing with my other car, and that motor was a gem. So I thought I'd do the same thing with this one. Once it hits 1500 K's I'll get the oil changed and then its hammer time!!

[SV8er]

I did the exact same thing with my other car, and that motor was a gem. So I thought I'd do the same thing with this one. Once it hits 1500 K's I'll get the oil changed and then its hammer time!!

Thanks Tone , well if it has proven well before for you , Then i would also stick to it ;)

Cheers

[swingtan]

Guys, When I got my VZ L76 I noticed that it really drank fuel, that was until the 3000Km service. Before the service I averaged around 16l/100K and then just after the service it magically dropped to 14l/100KM. I assumed that the newer motors had a "run in" richness mode that lasted till the first service. The funny thing was that when I got the lifters done at 10000KM, the high fuel usage returned only to drop back to mid 14's at around 13000km.

Another thing that I have noticed with the 6lt motor ( and i am talking L76 here ) is that it is very picky on the fuel used. For the first 15000KM I ran V-Power almost every tank. It never saw regular unleaded, the worst it got was 95. But for the past couple of months I've been only using V-Power Racing. The difference ( using the "seat-of-the-pants-o-meter" ) has been significant. The car has picked up a lot in the bottom end and runs much more consistently. Bottom end power is certainly not lacking, though the DiFillipo 4:1 and 2.5" full system, 2 hole mod and cold air box certainly help.

[HSVREDSLED]

Guys, When I got my VZ L76 I noticed that it really drank fuel, that was until the 3000Km service. Before the service I averaged around 16l/100K and then just after the service it magically dropped to 14l/100KM. I assumed that the newer motors had a "run in" richness mode that lasted till the first service.



Ahhhhhh...so there may be some truth in the ancient 'restrictor chip' theory?

[XLR8 V8]

Ahhhhhh...so there may be some truth in the ancient 'restrictor chip' theory?

Or the amazing "I just disconnected the battery and reset the PCM" theory?

[CarlFST60L]

I did the exact same thing with my other car, and that motor was a gem. So I thought I'd do the same thing with this one. Once it hits 1500 K's I'll get the oil changed and then its hammer time!!

Wakefeild pitentrace with 999km on the clock :lol:
(Mind you, it had been run in 'properly', and had a oil and filter change)

[HSVREDSLED]

Sorry for going off track tone...

I just had a re read of the 'restrictor chip thread' from a few moons ago.

http://www.ls1.com.au/forum/showthread.php?t=35818&highlight=restrictor+chip


Very funny reading...:lmao: :lmao: :lmao:

[Uncle Tone]

Ive driven a VZ with the 6.0l engine, i noticed the bottom end power (even though the car is stock)

Maybe you need to stick a stroker crank in her Tone :idea:

Dan

I think I'll eventually go FI in this car Bloo, but first I want to explore the bolt on route.

Hoping for 300rwkw bolt on......hehe :lol:

But I wonder if it would be possible? :deal: using:

Tunacai/KPMcai/Delcocai/My own cai whatever...
underdrive pulley
3 inch exhaust/proper extractors
1.8 RR
Tune

We have 265 rwkw 5.7 bolt ons....this is only another 35 rwkw....

???

[vyssbeast]

I think I'll eventually go FI in this car Bloo, but first I want to explore the bolt on route.

Hoping for 300rwkw bolt on......hehe :lol:

But I wonder if it would be possible? :deal: using:

Tunacai/KPMcai/Delcocai/My own cai whatever...
underdrive pulley
3 inch exhaust/proper extractors
1.8 RR
maflessTune

We have 265 rwkw 5.7 bolt ons....this is only another 35 rwkw....

???

think that might be the key tone ... :p

[swingtan]

Ahhhhhh...so there may be some truth in the ancient 'restrictor chip' theory?


Or the amazing "I just disconnected the battery and reset the PCM" theory?

So what are you saying? Holden have advanced to the resistor mod as a std run in tool and the 3000KM service now includes a PCM reset to make you think some work actually got done ? :lol:

[XLR8 V8]

So what are you saying? Holden have advanced to the resistor mod as a std run in tool and the 3000KM service now includes a PCM reset to make you think some work actually got done ? :lol:

A Holden service always has included a PCM reset. Holden plug in the Tech 2 to check for codes and update software revisions where necessary - a reset comes at the end of that. That's why your car always seems to run a little better after a service

[TLX]

I think I'll eventually go FI in this car Bloo, but first I want to explore the bolt on route.

Hoping for 300rwkw bolt on......hehe :lol:

But I wonder if it would be possible? :deal: using:

Tunacai/KPMcai/Delcocai/My own cai whatever...
underdrive pulley
3 inch exhaust/proper extractors
1.8 RR
Tune

We have 265 rwkw 5.7 bolt ons....this is only another 35 rwkw....

???


Hi Tone.

mate have noticed with MRC set on track mode the steering sharpens up quite a bit and feels more rock solid. I always have set on TRACK on long trips or nice flowing roads and now only put it on performance setting whilst in town.......give it a whirl.

Re mods mate.....got full KPM system with single 3.5inch tips(not twins), my system is on their website photo's on their VE SS, KPM CAI and VCM TUNE and it is bloody sweet as mate:yahoo:

Next ........Harrops TVS snorkel mid year;)

Enjoy,

Tully

[Greeny34]

I;ll say first that the car is fantastic. Such an improvement over the last model! However, I have a few gripes.

The steering seems to do something funny when hitting mid corner bumps. The wheel twitches in your hand, and as the suspension loads and unloads over humps in the road, the wheel moves with it. I hope I've described this properly.

The gear ratios are changed in the gearbox, and not for the better!! First to fourth are spaced wider apart, and fifth is too close to fourth. Why was this changed!!

This thing DRINKS!! Hopefully this can be fixed with a tune.

Lastly,the power seems to be lacking over my old car. I did have 3.9's and a tune in the old one, but I would have thought that being a 6 litre motor it would have made up for it somewhat. I'm referring to low down power here. I used to drive my old one around between 1500-2000 rpm. To get the same performance I have to drive between 2000-2500 rpm. Could this be the cam spec making the difference? Weight? Crappy stock tune?

What have other people found jumping into their new car compared to their old one?

Tone this car gets better with age .. yours is a little tight (as mine was) but they loosen up and get better.

My GTS has has the full exhaust, CAI and tune and is a healthy 274rwkw thanks to Tuna :love: .
There are still more improvements to be made with the exhaust (according to the exhaust workshop where it was fitted) and a complete new exhaust will be fitted to mine (free of charge) once they have nailed the best possible combination for the E series.

Scott

[OUTAtheBloo]

I think I'll eventually go FI in this car Bloo, but first I want to explore the bolt on route.

Hoping for 300rwkw bolt on......hehe :lol:

But I wonder if it would be possible? :deal: using:

Tunacai/KPMcai/Delcocai/My own cai whatever...
underdrive pulley
3 inch exhaust/proper extractors
1.8 RR
Tune

We have 265 rwkw 5.7 bolt ons....this is only another 35 rwkw....

???


I really dont think 265rwkw is a realistic figure for a bolt on ls1, and its not what most bolt ons make, common is 225-240rwkw.

Good luck tone, go out there an experience as many different combos as possible, really makes you appreciate them, and will set you on the right path :driving:

Dan

[Uncle Tone]

I really dont think 265rwkw is a realistic figure for a bolt on ls1, and its not what most bolt ons make, common is 225-240rwkw.

Good luck tone, go out there an experience as many different combos as possible, really makes you appreciate them, and will set you on the right path :driving:

Dan

Deejays made 265rwkw...as did mine :stick: :D



There are still more improvements to be made with the exhaust (according to the exhaust workshop where it was fitted) and a complete new exhaust will be fitted to mine (free of charge) once they have nailed the best possible combination for the E series.

Yours is a KPM exhaust, yes?

I was looking at those....but am considering 3 inch pipes, so I don't have to change the rear half when I go for some FI.

How much more do they reckon is in it?

I would sincerely love to know what 1.8 rockers would do to a car of your spec! Some say not worth it, but others say about 15rwkw....for the money it would be worth it IMO


Hi Tone.

mate have noticed with MRC set on track mode the steering sharpens up quite a bit and feels more rock solid. I always have set on TRACK on long trips or nice flowing roads and now only put it on performance setting whilst in town.......give it a whirl.

Re mods mate.....got full KPM system with single 3.5inch tips(not twins), my system is on their website photo's on their VE SS, KPM CAI and VCM TUNE and it is bloody sweet as mate:yahoo:

Next ........Harrops TVS snorkel mid year;)

Enjoy,

Tully

I tried that tonight, but it still gets a bit of a steering wheel shimmy over mid corner bumps. Oh well....lets see what a few kays under its belt bring.

Tell me more about this TVS Harrop snorkel.......:deal:

[dadem0n]

and I'll be doing exactly the same as my last car. 1.8's, modded maf and all! That tune was brilliant, amazing economy, good low down power, etc. I want that exact same thing for this car.:wave:

..... except to also run a 12? :stick:

[AussieTone]

Tone

Obviously any short comings can be attributed to the vehicle having a MAF :idea:

[Uncle Tone]

..... except to also run a 12? :stick:

Here we go.....:rolleyes: :lol:

I know, everybody's yardstick is the track, but there is MUCH more, as I've discovered, to getting a good track time than just engine power.:teach:


Tone

Obviously any short comings can be attributed to the vehicle having a MAF :idea:

Well, obviously! :lol:

Except this time the maf is a non-restriction!:yahoo:

Not that mine ever was......:p

[Greeny34]

Yours is a KPM exhaust, yes?

I was looking at those....but am considering 3 inch pipes, so I don't have to change the rear half when I go for some FI.

How much more do they reckon is in it?

I would sincerely love to know what 1.8 rockers would do to a car of your spec! Some say not worth it, but others say about 15rwkw....for the money it would be worth it IMO



KPM no.

My exhaust is a custom job from the same supplier that does exhausts for KPM. I didnt purchase it from KPM.

How much more .. unsure. I dont think it will be a lot more.
Any improvement is good though.

Scott

[TLX]

KPM no.

My exhaust is a custom job from the same supplier that does exhausts for KPM. I didnt purchase it from KPM.

How much more .. unsure. I dont think it will be a lot more.
Any improvement is good though.

Scott

Scott,

full exhaust system for HSV normally only deliver 4-5rwk gain......don't get too concerned. Have been advised you should only change system for sound and don't go overboard:yahoo:

Glad you are enjoying your beast mate.......they are a pleasure to cruise in. Any FI plans?

Enjoy,

Tully


Deejays made 265rwkw...as did mine :stick: :D



Yours is a KPM exhaust, yes?

I was looking at those....but am considering 3 inch pipes, so I don't have to change the rear half when I go for some FI.

How much more do they reckon is in it?

I would sincerely love to know what 1.8 rockers would do to a car of your spec! Some say not worth it, but others say about 15rwkw....for the money it would be worth it IMO



I tried that tonight, but it still gets a bit of a steering wheel shimmy over mid corner bumps. Oh well....lets see what a few kays under its belt bring.

Tell me more about this TVS Harrop snorkel.......:deal:


Tone,

can't sat too much......will be the first GTS to fit one:yahoo:


Will keep you posted

[Greeny34]

Scott,

full exhaust system for HSV normally only deliver 4-5rwk gain......don't get too concerned. Have been advised you should only change system for sound and don't go overboard:yahoo:

Glad you are enjoying your beast mate.......they are a pleasure to cruise in. Any FI plans?

Enjoy,

Tully



Hi Tully .. mate you are spot on with only 4-5 rwkw gains.

Mate Im stoked with the exhaust as it is and the sound is spot on.
The person who built the exhaust isnt convinced.
He is a perfectionist who believes that if you have paid for the best possible exhaust he can build then you should get exactly that.
He loves his work and I have no idea how he makes money because he is just all for the customer. Swapping my system over down the track for nothing etc.

An example was when I had my exhaust done I asked if my old one could be stored at his workshop until I could pick it up. He said dont worry about that we will get it couriered to your house. It was there the next day :yahoo: .

Mine was his first E Series and he believes with more refinement and working out the best combinations then he will swap mine over.

Anyway the point about my original post was for Tone to get into it (as in tune, CAI etc) and that the GTS gets better as it loosens up.
I mean 230 stock to 274 with a few mods is brilliant.

Forced Induction for me?
Yeah Tully I've already spoken to Martin about this and TT will happen when I have the cash to do it properly. I drove his TT VE SS and the car is just brilliant. I was so impressed with the whole package on that car. It was so refined and just magic to drive :driving:

I was also a passenger in Nurse's VY 1 Tonner with the larger TTR system and I was scared (I'm not joking about that either .. the acceleration that thing has is crazy). That car is a beast. WOW .. I have never experienced anything like that.

If Tuna can get the same refinement he has with his SS into the GTS then I'd be stoked. It was more Euro than a Drag strip monster.

But for the moment I'm happy with a few simple mods that really has brought the car to life.

Scott

[fatas]

do you guys think a newish motor will live to 150000km with twin turbos ?
if you fitted them at say 8000 or 10000km ? on a new ve? as a every day car with the odd wsid/wakefield run in between and serviced right.:idea: :thumbsup:

[Martin_D]

Forced Induction for me?
Yeah Tully I've already spoken to Martin about this and TT will happen when I have the cash to do it properly. I drove his TT VE SS and the car is just brilliant. I was so impressed with the whole package on that car. It was so refined and just magic to drive :driving:

Thanks for the kind words Greeny. Come down and try our TT car again now it has 295 tyres on the rear...it still skates around in second and third gear when you load it but the initial turn in and mid corner balance is just so much better :)


do you guys think a newish motor will live to 150000km with twin turbos ?

It all comes down to how you treat it and how greedy you are with the power. Leave the car as we deliver it, and dispense with the temptation of boost controllers/race tunes and there is no reason the engine wont live a long and happy life :)
Our TT kit went on with the odometer reading 82km from new, and at 7050km of testing/abuse/customer drives etc its still fresh as a new one. :cool:

[BadMac]

Well my R8 is now over 11,000km's (same motor and drivetrain as GTS) and its grown another leg. It has no mods, but it feels better down low and mid range. I wish i'd got some sort of baseline dyno at new, then at 3000km cause it would be interesting to see if the seat of the pants dyno was borne out at 10,000 and again after 15,000km service. Perhaps somebody whoo intends to keep theirs standard could get it benchmarked to give us all a view on how an LS2 ages.

And my also gets a little unsettled over mid corner corragations, first time I felt it was like "whats happening, oh that wasn't nice, wonder why that was", iv'e since proven that you can unsettle the suspension if you are powering round corragations. I think its somethink Holden got wrong which they will no doubt fix on the next model. Hopefully it can be applied to VE1's so we can iron out that blemish.

[HRT 8]

Interesting to hear the different thoughts on the suspension setups in the VE.

Goes to validate what I referred to in another thread.

They've been down here in Sunny Vic for a while.
Even some of the larger rural cities (Shepparton) have them.
Are they liked by those driving them?
That is an interesting question. The general thought from the 6 blokes I know who drive them is a resounding NO.
Wallowy and fluffy were terms commonly used.
They prefer the outgoing VZ 6.0.

[Martin_D]

Note anyone that tarmac rallies one of these cars starts with an R8....then puts in an aftermarket suspension system like our HSD style....tells you something :)

[Redline]

Note anyone that tarmac rallies one of these cars starts with an R8....then puts in an aftermarket suspension system like our HSD style....tells you something :) I have driven both stock and with the HSD suspension system.....the difference.........astounding to say the least :teach:

[Martin_D]

However Redline the GTS is arguably less of a handler than a stock R8.....which should have NEVER been the case (particularly if you read all the pre-hype on the MRC) :)

[Redline]

However Redline the GTS is arguably less of a handler than a stock R8.....which should have NEVER been the case (particularly if you read all the pre-hype on the MRC) :)

I guess its not all it lives up to be then ;) What a surprise.

[Uncle Tone]

Hi Tully .. mate you are spot on with only 4-5 rwkw gains.

Anyway the point about my original post was for Tone to get into it (as in tune, CAI etc) and that the GTS gets better as it loosens up.
I mean 230 stock to 274 with a few mods is brilliant.

Forced Induction for me?
Yeah Tully I've already spoken to Martin about this and TT will happen when I have the cash to do it properly. I drove his TT VE SS and the car is just brilliant. I was so impressed with the whole package on that car. It was so refined and just magic to drive :driving:

If Tuna can get the same refinement he has with his SS into the GTS then I'd be stoked. It was more Euro than a Drag strip monster.

But for the moment I'm happy with a few simple mods that really has brought the car to life.

If its only a 4-5 rwkw gain in the exhaust then its probably not worth changing it. I thought there might be a bit more in it, but ah well.

I'd love to try the TT SS....it would certainly put my mind finally to rest about my concerns with driveability and turbos.

I was thinking about it today, actually. Driving around, studying how I actually use my car. I find that most of the time I'm between 1500-2200rpm tootling around. So I don't really need any more power than what a good tune would bring down low. Since my car hit 1500km today I gave it a bit. Not bad at all, but I'm already yearning for more, like the top end of my old car. So I thought since I only tootle around at low revs for normal driving, and when I go fast I rev it, the turbos still might be a viable option.

[pagey]

Deejays made 265rwkw...as did mine :stick: :D




Tone that is THE QUOTE OF THE YEAR!

I often get you two mixed up :6bow: :6bow:

[Uncle Tone]

Tone that is THE QUOTE OF THE YEAR!

I often get you two mixed up :6bow: :6bow:

Why thank you Bradley, I try my best :thumbsup:

[tlr1000]

The steering seems to do something funny when hitting mid corner bumps. The wheel twitches in your hand, and as the suspension loads and unloads over humps in the road, the wheel moves with it. I hope I've described this properly.

Bumpsteer?
Yes my ssv does the same, found it worst when heading City bound onto the Calder fwy from Sydneham/Melton rd, right hander with a nice big dip in the road. If you want we can take the gts out for a road test.:driving:

[TLX]

If its only a 4-5 rwkw gain in the exhaust then its probably not worth changing it. I thought there might be a bit more in it, but ah well.

I'd love to try the TT SS....it would certainly put my mind finally to rest about my concerns with driveability and turbos.

I was thinking about it today, actually. Driving around, studying how I actually use my car. I find that most of the time I'm between 1500-2200rpm tootling around. So I don't really need any more power than what a good tune would bring down low. Since my car hit 1500km today I gave it a bit. Not bad at all, but I'm already yearning for more, like the top end of my old car. So I thought since I only tootle around at low revs for normal driving, and when I go fast I rev it, the turbos still might be a viable option.

Tone,

I agree here.

let's tee up Tuna to organise a spin in his TT set-up VE in Melb some time..... maybe Winton ?? . From Scott's experience, it sounds like a solid package:yahoo:


Tully

[Martin_D]

We have 2 x GTS kits going on next week in Melbourne...I am sure I can arrange with one of the guys for you to get 'up close and personal' with a Gen-TT :)

[TLX]

We have 2 x GTS kits going on next week in Melbourne...I am sure I can arrange with one of the guys for you to get 'up close and personal' with a Gen-TT :)

Martin,

in Melb this Thursday & Friday. Would be intersted to take a sneaky peak:p

Can you PM any info ??

Tully

[Uncle Tone]

I would be very interested to know the results of a GTS with twin turbos but retaining the stock exhaust.

[vyssbeast]

Bumpsteer?
Yes my ssv does the same, found it worst when heading City bound onto the Calder fwy from Sydneham/Melton rd, right hander with a nice big dip in the road. If you want we can take the gts out for a road test.:driving:

oh yeh that whole section from the roundabout to the freeway is no fun in a lowered car doing 100-120 over the 'perfections' in the road

[Martin_D]

I would be very interested to know the results of a GTS with twin turbos but retaining the stock exhaust.

Tone I ran our development car around for 2000km or so on the stock SS exhaust (which is identical to the GTS piece) and it was fine....quiet as hell...but fine. From memory the twin 3 inch gave the car another 25rwkw up top, but down the bottom it was pretty much the same :)

[Uncle Tone]

Tone I ran our development car around for 2000km or so on the stock SS exhaust (which is identical to the GTS piece) and it was fine....quiet as hell...but fine. From memory the twin 3 inch gave the car another 25rwkw up top, but down the bottom it was pretty much the same :)

Are you serious about the GTS exhaust being the same unit as on the SS??

[TUFFIE]

Are you serious about the GTS exhaust being the same unit as on the SS??

YES I can cofirm that, Mate has an exhaust shop and has changed the exhaust on a GTS and an SS... compare the two and the ONLY DIFFERENCE is the TIPS.

[CarlFST60L]

YES I can cofirm that, Mate has an exhaust shop and has changed the exhaust on a GTS and an SS... compare the two and the ONLY DIFFERENCE is the TIPS.

I thought the extractors where diffrent to?

[NickS]

I thought the extractors where diffrent to?

Same ... maybe it's just the cat back section that is the same ?

[Wonky]

I thought the extractors where diffrent to?
Yep, exhaust (catback) is identical but the SS runs cast iron headers and small cats compared to HSV E series which run extractors and bigger cats - apparently quite efficient. People going to full Pacies and hi flow cats are only gaining an extra 5 kw or so apparently.

I now have GTS extractors and cats on my SSV. Fitting was a hassle as apparently there was a problem with the dipstick and access.

[Alex(AUS)]

Is the HSV / SS cat-back section twin 2 1/4" or 2 1/2" in diameter?

Thanks,

Alex

[Uncle Tone]

YES I can cofirm that, Mate has an exhaust shop and has changed the exhaust on a GTS and an SS... compare the two and the ONLY DIFFERENCE is the TIPS.

Well well....

Interesting fact there. Wonder if there is a gain from fitment of just a catback?

I'd be interested to know whether the cats/extractors are any good too.

[Wonky]

Well well....

Interesting fact there. Wonder if there is a gain from fitment of just a catback?

I'd be interested to know whether the cats/extractors are any good too.
Tony,

Check some of the sponsors' threads eg. KPM, Doughboy, Sureflo - plenty of gain to be had from catback. As to your second question, as I said above, people going from E series extractors and cats to Pacies and hi flow cats are only gaining around 5kw apparently, so unless you want to wring every last kw out of it it's probably not worth the expense of changing. The standard HSV stuff seems pretty good.

[Uncle Tone]

Tony,

Check some of the sponsors' threads eg. KPM, Doughboy, Sureflo - plenty of gain to be had from catback. As to your second question, as I said above, people going from E series extractors and cats to Pacies and hi flow cats are only gaining around 5kw apparently, so unless you want to wring every last kw out of it it's probably not worth the expense of changing. The standard HSV stuff seems pretty good.

Shall do.

So looks like first stage of mods will be:

1.8 rockers
Cat back
CAI
Tune

I am reluctant to change the exhaust though. It sounds fantastic inside the car. I hope I find an exhaust that delivers its power relatively quietly, otherwise I'm not changing it.......

unless I go with FI....then I'll consider.


think that might be the key tone ... :p

Hey!! I just noticed that you cheeky bugger!! :nutkick: :lol:

[TLX]

Shall do.

So looks like first stage of mods will be:

1.8 rockers
Cat back
CAI
Tune

I am reluctant to change the exhaust though. It sounds fantastic inside the car. I hope I find an exhaust that delivers its power relatively quietly, otherwise I'm not changing it.......

unless I go with FI....then I'll consider.

Go on Tone,

take the first step mate......it will transform the beast to how they should be stock:yahoo:

My next stage.....TVS blower 2300, cam with Harrop heads, rockers, springs mid year....:yahoo: :yahoo:

Enjoy,

Tully

[hRTHSV]

uncle Tone, Sorry mate but 1.8's won't fit unless you change the springs as well apparently, and they already have pretty good springs . I also had 1.8's on the 5.7 but sold them instead of stuffing around again. Fuel economy is not as good as 5.7. As far as I know they can't have lean crusie enabled so no where near as good on a trip. Not a lot in it around town once tuned. Might be the extra weight in the VE holding it back. My VZ HSV with short 4 into 1's, standard exhaust, moded throtle body, and ss induction growler (until I get the new orrsom otrcai) easts my old bolt on 5.7 VY for breakie. Both 6 speeds but box ratios in VZ is equal to 3.9s in VY except 4th which is the same. I'm looking at u/d pulley as well then that's it.

[Sonnymad]

uncle Tone, Sorry mate but 1.8's won't fit unless you change the springs as well apparently, and they already have pretty good springs . I also had 1.8's on the 5.7 but sold them instead of stuffing around again. Fuel economy is not as good as 5.7. As far as I know they can't have lean crusie enabled so no where near as good on a trip. Not a lot in it around town once tuned. Might be the extra weight in the VE holding it back. My VZ HSV with short 4 into 1's, standard exhaust, moded throtle body, and ss induction growler (until I get the new orrsom otrcai) easts my old bolt on 5.7 VY for breakie. Both 6 speeds but box ratios in VZ is equal to 3.9s in VY except 4th which is the same. I'm looking at u/d pulley as well then that's it.


We have done some extensive testing on the VE hsv engine springs,they are not a bad spring at all.

regards sonny

[Uncle Tone]

We have done some extensive testing on the VE hsv engine springs,they are not a bad spring at all.

regards sonny

Thats good news!


uncle Tone, Sorry mate but 1.8's won't fit unless you change the springs as well apparently, and they already have pretty good springs . I also had 1.8's on the 5.7 but sold them instead of stuffing around again. Fuel economy is not as good as 5.7. As far as I know they can't have lean crusie enabled so no where near as good on a trip. Not a lot in it around town once tuned. Might be the extra weight in the VE holding it back. My VZ HSV with short 4 into 1's, standard exhaust, moded throtle body, and ss induction growler (until I get the new orrsom otrcai) easts my old bolt on 5.7 VY for breakie. Both 6 speeds but box ratios in VZ is equal to 3.9s in VY except 4th which is the same. I'm looking at u/d pulley as well then that's it.

Thanks for the insight mate.

Why won't the 1.8's work with stock springs? I thought they would work with any spring.

[hRTHSV]

Sonny, Is it right that with 1.8's and the cam in HSV LS2 that springs will bind at full lift, that's what I was told.