Phoned a few workshops up today...

[brendony1]

to get quotes on an exhaust setup (twin 2 1/2") for my VU SS, and got some interesting responses.
One tells me that I shouldnt bother with extractors as they dont help acceleration, just top end speed.
Another one tells me not to bother with hi-flow cats as the SS comes with these as standard.

I know from reading these forums neither of these seem right but they did sound pretty certain, so.. should I ignore their advice? Kinda hoping theyre right so I can save some $$.

Anyway, these are the brands they offer. Super Cat, Berkley, X-Force and Rage. Anything here I should avoid?

One last query... when it comes to a computer edit doesnt this take a fair bit of work? One guy tells me they just dyno your car then upload a pre-made spec.

Need to get this right the first time, only have so much money.. appreciate any help

[nqcv8]

First point of call.....Dont listen to anyone in Townsville About Tunes.

What exhaust places you spoken to mate?

I used to live up there!

Cheers

Sean

[brendony1]

Hah, so you know how tough it is to look at prices in a city then try to budget for the same kind of work up here :).
Ok, I've spoken to Fast Fix Exhaust, Brocks, Fast Fix Mufflers and Bob Parkes Muffler City

Also Aitkenvale Auto and Dyno - who told me about the tune

[nqcv8]

Ye i know all to well mate.

Ok the only place in Townsville I would talk to about Exhausts is Bob Parkes @ Hermit Part... Talk to Robbie there.

X-Force Systems are becoming popular and a great budget system.

I will send a pm with a link.

[555]

One tells me that I shouldnt bother with extractors as they dont help acceleration, just top end speed.


Thats complete garbage mate, anyone who has had headers knows it improves the pickup when you plant your foot, it also makes for a nicer exhaust note and should increase torque across the rev range.

There are all sorts of tunes out there. Apparently there is a fairly standard clubsport R8 tune that some people use. Some tuners might use a base tune (either their own custom one or a standard R8 tune) and then tweak it, and for special applications such as gen-tt for example, it will need more time and work to get the tune spot on. Also, the tune can be matched to a customer's requirements for agressive or conservative. A mail order tune is a standard tune which is why they are cheaper, they are quite popular and people find them good value for money. Try a search and decide for yourself.

In any case I would make sure the garage tuning my car was a well known sponsor, who aren't afraid to tell you exactly what they are doing, and will customise the tune to your needs. Its a big investment and I'm sure there are lots of cowboys out there so choose carefully. Good luck!

[Mungrel]

to get quotes on an exhaust setup (twin 2 1/2") for my VU SS, and got some interesting responses.
One tells me that I shouldnt bother with extractors as they dont help acceleration, just top end speed.


This point is just plain stupid (from whoever told you it that is), how could they (supposedly) just help with top end speed? I've had extractors on both cars i've owned, and intend to install them on the next... I've noticed an improvement in torque and power, as well as fuel economy. Not to mention, when you get into some other modding, extractors will be a necessity to expel the spent gasses from your motor.
Getting a decent full exhaust and intake, is the basis to every powerful and efficient motor.



Another one tells me not to bother with hi-flow cats as the SS comes with these as standard.

Not to my knowledge? my VU SS had some piddly little cats. However as i didn't want to spend hundreds on 2 new cats, i merely lopped the ends off my cats and opened up the inlet and exit pipe diameter to 2.5" so it matches the extractors and cat back system.



One last query... when it comes to a computer edit doesnt this take a fair bit of work? One guy tells me they just dyno your car then upload a pre-made spec.

Most places do offer a modified tune for improved exhaust and intake which will yield some decent results, however in most cases, a custom tune is best.

Good luck mate

[BLACK 346]

Sams performance header test proved that the stock manifolds
flow quite well, so probably not a lot of gains to be had on a
bolt on car. I added tri-y's to mine when it was unopened,
only real difference I noted was the improved exhaust note.
Same for hiflow cats, I went opened stockers first, no sop
difference whatsoever, then hiflows, once again no sop
difference but definitely a deeper exhaust note.
Hope this helps mate.
If you are on a budget, have you done the Monaro cold
air intake yet? Very cheap intake mod for your model
and a must before your tune.

[brendony1]

Ok, thanks for the info, especially about the mail order tunes.. I had a quick search and they cost only $510! (compared to the $1200 and $1700 for ls1 edit i was quoted.)

Cheers nqcv8, will deff give him a call

BLACK 346, what do you mean by opened/unopened? And sop?
I was talking to a mate today and he is getting a Growler put on his SS so am keen to see what he is going to say about it.. but yeah I was planning on doing some induction work, just my first step was the exhaust.
Cheers!

[markone2]

to get quotes on an exhaust setup (twin 2 1/2") for my VU SS, and got some interesting responses.
One tells me that I shouldnt bother with extractors as they dont help acceleration, just top end speed.
Another one tells me not to bother with hi-flow cats as the SS comes with these as standard.

Ip


:confused: Blessed are the ignorant :doh:....I well recall my own 1st foray into Gen111 mods...straight to P**** R**** Exhausts Moss ST / Slacks Creek where I was assured point blank that after fitting Paccie Tri-y's with stock cats and a Red-back 2.5 Twin system no tuning was required ... the exhausts mods alone giving the car more grunt than any edit tune could possibily provide…. :lmao:

Now you could excuse this practice out of sheer ignorance 4 years past…but bugger me if the same folk where not found flogging the same story to a customer not 2 weeks past

[Tonner]

Sams performance header test proved that the stock manifolds
flow quite well, so probably not a lot of gains to be had on a
bolt on car. I added tri-y's to mine when it was unopened,
only real difference I noted was the improved exhaust note.
Same for hiflow cats, I went opened stockers first, no sop
difference whatsoever, then hiflows, once again no sop
difference but definitely a deeper exhaust note.
Hope this helps mate.
If you are on a budget, have you done the Monaro cold
air intake yet? Very cheap intake mod for your model
and a must before your tune.
That pretty much sums it up.
Now cammed car, hi flows and extractors is a different story I believe. worth the money then.

But it has always been the natural thing to do, Get a good note happening first.

[UTE FORCE]

:confused: Blessed are the ignorant :doh:....I well recall my own 1st foray into Gen111 mods...straight to P**** R**** Exhausts Moss ST / Slacks Creek where I was assured point blank that after fitting Paccie Tri-y's with stock cats and a Red-back 2.5 Twin system no tuning was required ... the exhausts mods alone giving the car more grunt than any edit tune could possibily provide…. :lmao:

Now you could excuse this practice out of sheer ignorance 4 years past…but bugger me if the same folk where not found flogging the same story to a customer not 2 weeks past

They probably have a pic of your Barge almost yanking the wheels off the deck in their showroom saying "one of our customers"....now that would be a hoot:thumbsup:

[brendony1]

Yeah Im ignorant with this kind of thing but at least I know it hey. Gotta love these forums, it'd be like a lamb to slaughter without it

[Mungrel]

Yeah Im ignorant with this kind of thing but at least I know it hey. Gotta love these forums, it'd be like a lamb to slaughter without it

At least your asking for advice, and seeing as your willing to listen, we're all willing to help :thumbsup:

[brendony1]

At least your asking for advice, and seeing as your willing to listen, we're all willing to help :thumbsup:

Yeah, and thankyou for that.
Looking forward to being able to post a dyno when this is all done (exhaust, cat, tune and induction. Still thinking about extractors.)
Out of my own interest Im taking note of fuel usage before and after so Ill put these results up too

[Justice R8]

Sams performance header test proved that the stock manifolds
flow quite well, so probably not a lot of gains to be had on a
bolt on car. I added tri-y's to mine when it was unopened,
only real difference I noted was the improved exhaust note.
Same for hiflow cats, I went opened stockers first, no sop
difference whatsoever, then hiflows, once again no sop
difference but definitely a deeper exhaust note.
Hope this helps mate.
If you are on a budget, have you done the Monaro cold
air intake yet? Very cheap intake mod for your model
and a must before your tune.

Great point.

So why do we all see on here people being told they need a dual 3 inch system, or being told 1 7/8 headers and dual 3 inch is the way to go on standard cars, then having the people actually believe the shit. I watched it last night on the engine dyno at Sams. Ran a stroker up on the engine dyno. At load full throttle the engine made 170hp, Full throttle remember. Sam kept the engine loaded and started winding off the throttle 80% throttle still 170 hp at 2500rpm, 50% throttle still around 168 hp about 40% was about 166hp. Sam than said to me, explain to me how all these people are quoting CAI are making 10 to 20 rwkw gains at low revs right through the range if we can maintain the same HP at 2500rpm whether it is 50% throttle or 100% throttle. Same applies to the exhaust. If the engine is using a set CFM (as much as the engine can physically use without forcing it in, how does putting 1 7/8 headers help it breath if there is no restriction in the first place. If the standard exhaust was so restrictive that you could pick up this magical 30 rwkw, you would see standard cars with standard exhaust systems back at dealers every week with b urnt out exhaust valves.

Black 346
Great to see you are one of the few here with a memory of real world testing and not the myths and magic that is being spruiked by some. There is stuff all between the manifolds and the best headers. Its a joke that people believe that there are so many gains on the LS2 in the VE over the VZ. For gods sake it is the same engine in a different wrapper.

Sam is also clear that a set of pipes makes people feel better about there car. Sam says any extractors for a standard car, whatever the owner fancies. His big or built engines he advises the customers to go for the big Di-fillipos.

Brendony1 any exhaust will be OK. Ensurte you like the sound because thats all your buying for on a stocker. The tune, enjoy the drive to brisbane or get a Delco mail order if funds are tight.

[mustanger]

Good post there Justice R8. You have to like the sound of your car and if you get a few hp gains,it is a bonus. No good saying an exhaust system makes power if it sounds like a John Deere.:confused:

[chillicatqld]

All I know is my stock VYII SS ute made 213rwkw with the full headers/hi-flo cats/zorst system fitted. Dyno run was independent to the fitters of the exhaust system so there was no hidden agenders there... I am sure it wasnt 213rwkw when I bought it off Holden!!

[vyssbeast]

Its a joke that people believe that there are so many gains on the LS2 in the VE over the VZ. For gods sake it is the same engine in a different wrapper.


THANK YOU!!! Its about time someone said this!! I couldnt believe some of the shit being said around here in regards to the LS2 in a different body!

back on topic though ...

At the moment exhaust will be basically a sound issue, deep n tough note. If you want the best possible sound without getting extractors i would suggest the sureflow 3.5" ... Apparently very deep and angry note without headers, so getting headers is only necessary if you do serious work later.

Induction, depends on your budget. Ultimate is the OTRCAI, otherwise, do the 2-hole-mod and GTS pipe (pick 1 up cheap second hand) and go from there.

Tell your mate not to bother with the growler, afaik all it does is that, growl (make noise) no real performance benifit.

[vuss383]

Brendony1 , Pm sent . Ask around about the Di Filippo exhausts , they sound tough when your into it & wont give you much noise in the cabin . I', sure if you do a search on these you will come up with plenty of info .

Cheers

[brendony1]

ok thanks mate, ill call and see what their prices are

[Hammer]

One last query... when it comes to a computer edit doesnt this take a fair bit of work? One guy tells me they just dyno your car then upload a pre-made spec.

Need to get this right the first time, only have so much money.. appreciate any help

Brendony1, Mark from power torque will be in townsville in a few weeks. give me a call durring the week to see what his travel plans are like.

but he has a few cars to do. and everyone will be able to tell you hes a top tuner..

[brendony1]

Hammer,
bit too soon for me unfort. I wont have started the mods on the ute yet, cheers for the thought tho

vuss383,
cant send pm's yet but would like to see pics of your system

[Mozz]

Brendony1 - I would suggest you do whatever needs to be done to see if you can access Mark's talents while he is up in Townsville - give PT a ring during the week and see if you can book in and perhaps get a recommendation on exhaust - it might not fit in with your budget situation but I recommend you seize the opportunity to have one of the premier tuners in Oz work on your vehicle (or budget a 2000km round trip to get a tune at PT at a later date).

[Oztrack Tuning]

If you think you may put a cam in it one day setup for that possibility. Big DF extractors and twin 3" it will sound great. I had short 4 into1s on mine initially but the big DF extractors sound 1million dollars better and actually gained down low over the old system. With a stock cam this may not be the case but it will sound much better and be ready for other mods.

It will gain heaps from a tune regardless of other mods and will never be strong down low without a tune regardless of any mods you do (except for a procharger!).

Dont expect just any exhaust to build huge gains in an LS1. But it makes way for bigger gains from other things. :)

[BLACK 346]

All I know is my stock VYII SS ute made 213rwkw with the full headers/hi-flo cats/zorst system fitted. Dyno run was independent to the fitters of the exhaust system so there was no hidden agenders there... I am sure it wasnt 213rwkw when I bought it off Holden!!

How do you know it wouldn't have made 213 stock on that
particular dyno? Without before and afters you will never
know for sure :)

[chillicatqld]

How do you know it wouldn't have made 213 stock on that
particular dyno? Without before and afters you will never
know for sure :)



PT's dyno is supposedly known for its conservative figures - and so I dont think any VYSS came out with 213rwkw??

[VYSSion]

PT's dyno is supposedly known for its conservative figures - and so I dont think any VYSS came out with 213rwkw??

Mine got less than that with extractors, 2½ twin and a MAF tune. :confused: