STOCK 08 GT-B tb STi on the DYNO - 182.6awkw

[Sentinel]

When is he coming to Melbourne? I'll sign up!

I have a tuner to recommend in Melbourne, if you're interested. He tuned my car.

Do tell?

[CheesyMong]

It's tuned rich from the factory so it doesn't ping and blow up your engine, like what happened with the gen3 Liberty B4. They decided to err on the side of caution - probably a bit too much. I know with my stock tune, we eliminated about 10% fuel without adjusting anything else as a baseline.

Not entirely true there are quite a few Libs that have blown engines cause they are coming out of the factory too lean like mine for instance the AFR was running at 14.9 from memory when it should be in the 11s

Cheers

Joel

[STiLADYLIBERTY]

Although a bit high for a stock standard Lib, STi or not, the important thing here is the huge improovement from base. Well done Rod! Glad to see Paul made it happen foe you!

yep , big improvement ftw !

Did you get your stock maps back (on dish or flash drive) ??
AFRS ?

nope , why bother ? it drives better now didnt ask for the AFR info as its pretty useless to me , but id say it would be mid 11s knowing Pauls last tune for me.

I would suggest it's more like 30Kw actual increase

maybe ,fair call considering 4th gear ratios but who really knows - the dyno print is there and I know it feels much better to boost , feeling good by 2500rpm and pulls harder through the range. the difference in gain from STi to Pulse tunes is evident there .

[Boxer]

It's tuned rich from the factory so it doesn't ping and blow up your engine, like what happened with the gen3 Liberty B4. They decided to err on the side of caution - probably a bit too much. I know with my stock tune, we eliminated about 10% fuel without adjusting anything else as a baseline.

Not entirely true there are quite a few Libs that have blown engines cause they are coming out of the factory too lean like mine for instance the AFR was running at 14.9 from memory when it should be in the 11s

Cheers

Joel

True, there are some in that boat (know of two cases in Bris that were too lean from stock) - always good piece of mind to have it checked on a Dyno

[Boxer]

[

Did you get your stock maps back (on dish or flash drive) ??
AFRS ?

nope , why bother ? it drives better now didnt ask for the AFR info as its pretty useless to me , but id say it would be mid 11s knowing Pauls last tune for me.
.

No offence mate - just for interest sake, some here are more techo than others. Information sharing is a good thing you know

No doubt about it - its an impressive curve

[tangcla]

Raymond @ ART - 9459-0880, tell him Clarence sent you.

[Sentinel]

Raymond @ ART - 9459-0880, tell him Clarence sent you.

Thanks!

Oh, and apologies for hijacking the thread.

[senator]

nice work

what mods???????????????????

[SillySora]

Yeah mine was mega supa rich. Didn'y gain that much but.

[STiLADYLIBERTY]

[

Did you get your stock maps back (on dish or flash drive) ??
AFRS ?

nope , why bother ? it drives better now didnt ask for the AFR info as its pretty useless to me , but id say it would be mid 11s knowing Pauls last tune for me.
.

No offence mate - just for interest sake, some here are more techo than others. Information sharing is a good thing you know

No doubt about it - its an impressive curve

thats cool , no offence taken i can appreciate the finer details also but was more interested in getting the keys and driving rather than quizzing Pauls tune , he`s a busy guy and knows what he`s doing so I`m happy with the basic printout

[STiLADYLIBERTY]

nice work

what mods???????????????????

thanks , its completely OEM "tuned by STi" .

It says fairly good thing for the low backpressure STI twin mufflers IMO



I would like to confirm the ratios for an 08 6sp and also the rear diff type if anyone can tell me ?

[GTSPECB STI]

nice work



It says fairly good thing for the low backpressure STI twin mufflers IMO


I would like to confirm the ratios for an 08 6sp and also the rear diff type if anyone can tell me ?

Not having an MY08 I cant tell you what ratios are but I can tell the sti twin mufflers are not low packpressure. Get under the car and have a look at them and you will start to get the picture. They do however look good at the tips

[senator]

nice work

what mods???????????????????

thanks , its completely OEM "tuned by STi" .

It says fairly good thing for the low backpressure STI twin mufflers IMO



I would like to confirm the ratios for an 08 6sp and also the rear diff type if anyone can tell me ?

stock... mmmmmm

just imagine what a tbe, high flow air filter and aftermarket tmic can do????

[Bangers]

Drivetrain Manual


Transmission type 6-speed manual
Gear ratio 1st 3.636
Gear ratio 2nd 2.235
Gear ratio 3rd 1.521
Gear ratio 4th 1.137
Gear ratio 5th 0.891
Gear ratio 6th 0.707 -
Gear ratio rev 3.545
Final reduction ratio 3.900

Mark

[STiLADYLIBERTY]

Drivetrain Manual Automatic


Transmission type 6-speed manual Electronic 5-speed SPORTSHIFT4
Gear ratio 1st 3.636 3.540
Gear ratio 2nd 2.235 2.264
Gear ratio 3rd 1.521 1.471
Gear ratio 4th 1.137 1.000
Gear ratio 5th 0.891 0.834
Gear ratio 6th 0.707 -
Gear ratio rev 3.545 2.370
Final reduction ratio 3.900 3.272

Mark

nice , thanks Mark so 4th gear is a touch under 1:1 (except the auto which is perfect 1:1 ) however 5th gear is a touch over , hence the power runs in 4th gear give a slightly more positive figure. Unsure how to work out the difference tho` , I expect a more realistic 170-175awkw for a true 1:1 dyno run.

GTSPEC STI , despite appearances I think the evidence supports they are indeed low backpressure , as advertised IMO.
no doubt they are somewhat restrictive when chasing BIG numbers but in comparison to standard GT mufflers they are low backpressure for all intensive purposes. I assume these are not the same considering the price
Id say the Dump pipe is still the biggest restriction .