AN07 PTN

hi guys my07 wrx Rolling Road results
mods, full decat , walbro pump, k&n panel, Racedynamix remap. please give me your thoughts as i dont really know what im looking at lol

AN07 PTN

not sure if it would matter but at the RR there was no fan for the tmic the only fan was for radiator....

Dougmy06wrx

iTrader: (4)

Was it just a power run you got or was it a mapping session?

I would have thought it would be better with a fan on the intercooler to keep things cool and colder airflow through it, but I may be wrong!

How's the turbo hunt going?

Doug

AN07 PTN

today it was just a power run mate.
with regards to the turbo i am just about to purchase a holliday for the mrs therefore giving me bonus points and equal funds to do with as i like. lol

Tomwrx

iTrader: (54)

the tdo4 max at 285-290bhp,

i would have been looking at 280 ish but remember some rolling roads give different readings ,it may appear down here but on another could be spot on,

and with the amount of good work that duncan does i would just ask him what he thinks,

Dougmy06wrx

iTrader: (4)

+1

Duncan is prity good with estimating power when mapping!

Nice, holiday = turbo. You will be going on a lot of holidays If that's how it works in your house! Once you catch the modding bug! Haha

Have you uprated the brakes or suspension on your car? I couldn't remember seeing them in your mods list!

Doug

AN07 PTN

I spoke to Duncan he agrees the lack of airflow to the tmic would account for a loss of about 10bhp.

AN07 PTN

Hell yeah the guy is a legend... i wouldnt go anywhere else!!!

IM NOT STUPID DOUG lol i send her on holliday, i stay at home and spend time with the one i love lol (the scooby)

the brakes and suspension are all as the day she was born ...

EngineMapper @ Group B Motorsport

It's a bit of a trade of on these cars to get both top end power and torque from the TD04 as the 2.5L flows a lot more air than the older 2.0L. You generally either have to trade off low end torque to allow the turbo to produce cool enough airflow at the top end to be at 270-280bhp, or run the turbo hard low down and suffer at the top end.

My method is always to run the turbo harder lower down whilst it's well within it's efficiency range and sacrifice 10-20bhp top end, doing this on a decatted car nets you the best part of 390lb/ft of torque from low down and a very flat power curve peaking at approx 260bhp. This method nets a much bigger increase in torque than bhp with minimal trade-off and generally works out as a much faster car.

I've not yet seen a hawkeye WRX genuinely produce more than 390lb/ft, which is mammoth when you drive it!

Just my two penneth,

Graham

dunx

iTrader: (3)

And start saving for a replacement gearbox. Two people I know have chased 400 ft.lb.s and lost a gear in the fun that followed.

dunx

P.S. Whilst that's being done, uprate the clutch too !

AN07 PTN

I am happy with what I have but I would be even happier with around 330bhp/350lbs

Dougmy06wrx

iTrader: (4)

330bhp was when my clutch started slipping, unsure of torque as it was road mapped! But think it was around that figure, so be wary of that and factor it in! Also good brakes!

Doug

Tomwrx

iTrader: (54)

i was running 355 bhp on my standard clutch for a yr without any probs

then the front diff went so just changed to 6spd as i was going down this route,just happend sooner than later.

andythejock01wrx

What's the difference between "engine power" and "corrected power"? Which one should be quoted?

Black-Hawk

iTrader: (4)

Did you mean on a td04?

AN07 PTN

From what I gather corrected is the result you would get if all the conditions of the run wet perfect ie temps and pressures.... I could be wrong....

dynamix

iTrader: (3)

Corrected power should be used as that takes into acct the atmospheric conditions and other factors that all dynos have built in to work out what they think are real figures.

They all vary though and a lack of a fan feeding the tmic will def have cost the car power with the lack of charge cooling.

Good compromise in torque and retaining enough for top end power to make it fell like it isnt falling flat on its face after the torque disappears