Jolly Green Monster

iTrader: (4)

Most of the best mods for power and feel on the car involve lowering the spool time on the turbo so I get full boost at lower RPM.. like the Decatted down pipe for example.. BUT... does the ECU have a fuel map for the WOT that low down the rev range??

Thoughts??

MY96 UK BTW..

JGM



[Edited by Jolly Green Monster - 6/4/2003 9:58:04 PM]

Jolly Green Monster

iTrader: (4)

More thoughts..

I assume the ECU has a look up table indexed by RPM, MAF for WOT?

Will it just stay on open loop modifying the fuel added whilst reading the AFR and MAF until a set RPM?

Cheers

JGM

john banks

On a UK car it is generally rich enough, can't comment on the 96 in detail. The worst that will usually happen is you lose a bit of torque from it being a bit lean.

On some imports it is a bit more dodgy - P1/STi 5/6 for example with a decat can hit quite a lean spot if you bring the turbo in earlier, and this can cause det.

Pavlo

not seen a problem myself

paul

Chris.Palmer

No problems here either.

Check out my home page for recent dyno runs - which plot boost & lamda.

PS - there are also sample fuel maps there.

Chris

Jolly Green Monster

iTrader: (4)

Thanks guys..

So doing headers (ported standard) and an up pipe and an induction kit should be fine too?

Knock link is going on before hand and I have an AFR already..

If a problem I might have to persuade someone to do me another map..

Cheers

Simon

dowser

I guess as long as you're on the stock turbo, then all should be fine. Bigger turbo's on stock maps make it a bit lean during spool - not dangerous as such, but hampers spool.

Richard

STi M'8

With ref. to std ECU map scaling and relevant extrapolation, I guess much earlier spool up can cause trouble...