LS2 Tune results

[bothur]

Hi Guys,

Just a had a tune completed on my Ve Maloo A6 and wondering if these figures seem ok or low ?
Current engine add ons before the tune are as follows, Orsm OTR, Pacemaker LONG try Y's, Outlaw 200cpi cats and Xforce 2.5 cat back system.

Dyno results are as follows,
Before tune,MAX 237.5 rwkW
After tune, MAX 257 rwkW

[Wonky]

Probably in the right ballpark. Most L98/L76 A6s tend to be around 200 - 215 rwkw on Chev's dyno and the LS2s from the few I remember from ages ago from memory were generally about 10kw higher stock. Add to that your mods and 237.5 seems a reasonable A6 starting figure to me (depends on dyno of course and even the same dyno can produce different results on different days due to all sorts of things).

A gain of 19.5kw for a tune is again in the right ballpark, possibly a fraction low, but all in all your figures are around right for the mods and A6 (again depending on dyno).

[JJW501]

These numbers can be fiddled with by tuners way too easily. Numbers on a dyno are useless.

I use my foot dyno to work out if it made a difference. I figure if i can't tell the difference driving the car then it was a waste of money.

I am guessing that since you are asking, you are a little disappointed with the results on road.

I had all my mods done separately and the least effective was the tune. CAI made a huge power difference, exhaust and extractors a huge difference under foot, the tune.............not so noticable. It pulls nicer in the midrange i think but it is not as obvious as the other mods. the response is slightly better but nothing to write home about in my opinion. probably need to change cam and pulley, lighte flywheel to make it snappy.

I'm not saying it is a waste of time, but if i had my time again i would do it last as icing on the cake.

Mechanical changes rule.

JJW

[BennyMac]

Did someone say a full KPM system and a DUS OTR might be the go.......:confused:

:p:burnout:

[VYSHSV8]

These numbers can be fiddled with by tuners way too easily. Numbers on a dyno are useless.

I use my foot dyno to work out if it made a difference. I figure if i can't tell the difference driving the car then it was a waste of money.

I am guessing that since you are asking, you are a little disappointed with the results on road.

I had all my mods done separately and the least effective was the tune. CAI made a huge power difference, exhaust and extractors a huge difference under foot, the tune.............not so noticable. It pulls nicer in the midrange i think but it is not as obvious as the other mods. the response is slightly better but nothing to write home about in my opinion. probably need to change cam and pulley, lighte flywheel to make it snappy.

I'm not saying it is a waste of time, but if i had my time again i would do it last as icing on the cake.

Mechanical changes rule.

JJW

Try doing what you are saying with a VE and watch how many fault codes you get :):)

Unless you get an exhaust that has enough points for O2 sensores and an OTR suitable:):)

Ot a shit tune will make it feel like nothing gained:)

[BennyMac]

I had all my mods done separately and the least effective was the tune. CAI made a huge power difference, exhaust and extractors a huge difference under foot, the tune.............not so noticable.

The tune IS the key.

Yes there are 'Cowboy' tuners out there, but find an honest and reliable one (not too hard with all the sponsors on the Forum) and away we go.

Depends on what model car you have but a custom dyno tune is just about the best 'bang for ya buck'.

[Wonky]

These numbers can be fiddled with by tuners way too easily. Numbers on a dyno are useless.

Disagree. They are useful in measuring gains (on the same dyno) and given the relatively small gain from the tune I doubt the tuner did any fudging at all. Also, it's possibly a very conservative tune.

[BennyMac]

Disagree. They are useful in measuring gains (on the same dyno) and given the relatively small gain from the tune I doubt the tuner did any fudging at all. Also, it's possibly a very conservative tune.

I would say 'fudging' is still going on with "backyard tuners" but like i said find a good one (tuner) and stick with them.
Just have a look at some of the feedback that most of the tuning sponsors get on here....:goodjob:

[bothur]

Thanks for your replys guys, I am very happy with how the car performs and drives after the tune and can notice a change. I suppose I am just trying to compare it to my previous Ve SSV ute that had identical mods. It only made 236rwkw but felt alot more torquey down low. I would also assume that the previous ssv was alot lighter than the current Maloo ?

[daskip]

Mods : Cam , Headers , Twin 3" X-Force , Mafless Tune
Before : 254rwkw
After : 294rwkw

[bothur]

Auto or manual ?

bet your happy at those kw's

[daskip]

Manual T56

[Mikey]

Actually, you may not be far off the mark. Only cars can be compared to themselves, they cannot be compared to similar cars. If you want to do that then you will need to go down the 400 mtr lie detector. You do not give us a base figure to compare it too either.

My first HSV was my VZ. This Ls2 A4 sporting the 297 boot lid made 231 rwk standard 241 rwk after complete exhaust and 261 rwk with a tune through a standard air box. This car was dynamite it just felt so strong, but weight would have also played a factor once it hit the street.

My E1 Ls2 A6 with its 307 boot lid made 228 rwk standard 248 rwk with a complete exhaust and 257 rwk after tune through a standard airbox. It never felt like a strong car considering the similar power and engine size but it was better to drive.

Note: if you look at both of these cases, the exhaust made all the difference on one car but it was the tune that made up the difference on the other, go figure!

My current E2 Ls3 A6 was 225 rwk standard 245 rwk with exhaust but a much better 283 rwk with an OTR and mafless tune.

Most people told me that the Ls3 should have made 245-250 at the treads standard so I unfortunately started with a dunger to begin with, but to drive the E2 now is incredible. There is power everywhere. The dyno is a DD and all of the cars have been on this same dyno with the same operator over the years. I also put it on a brand new mainline and the figure was around 275 rkw so I am pretty sure that the other figures are pretty well spot on.

Cheers Mikey

[bothur]

Funny that, my first HSV was a VZ LS2 A4 maloo also. That thing was so different to the ve its not funny. I too only changed the headers and managed 240rwk. But over the 400m strip it ran constant 12.7, where the last ve ssv ran constant 13.1. It will be interresting to see how my current Ls2 mallo goes down the track ?

[VYSHSV8]

The main reason the LS2 will feel better down low is the higher compression ratio compared to the L98 in the ve