Hey Supra Foe im new to the forum!! its a pleasure to be a part of it all :D From Adeliade, SA.


I have a problem with my MA40! Hope someone can shed some light!!

Im running a 1989 JDM MA40. 2L TT 6pot.

Mods so far...

Reco stock turbos (done about 6 months ago by Adelaide Turbos)

HKS pod (on car when imported)

HKS Catbak (on car when imported)

HKS S/S Blow off (on car when imported)

Larger Front section pipe ( Just installed)

New Custom larger FMIC. (just installed) B)

Manual controller runs 12-14psi max

Stock Head, Internals, and ECU

Just Dynoed the car at 144.5 rwKw. - The fuel ratios were so high (ritch) off the scale.

Im guessing theres fair few kw lost here :unsure:


Should I be doing a Boost / Vacume leak test??? or look at idol or ecu settings??


Any feed back would be appreciated!! :D

Cheers

Frank

Azzuro MA40 mkIII Supra

Remember that boosting makes your fuel air ratio much more rich, but if something is wrong Well i would test my ecu first because if im not mistaking that helps control fuel/air ratio....thats what i think it sounds like....maybe it could be the boost, but boost just force inducts more air....so if your getting too much fuel in there than that wouldn't make sense...
thats my 2 cents...i'm one of the newer guys to supras so i would wait for Suprra Girl, monkihead, king diamond, etc... to weigh in they have more experience...

you say the numbers are high.... that would suggest the opposite actually
you would be running lean

rich would be low numbers

what was the exact a/f ratio?

also your mk3 is a GA70 89 supra ;) ma40 is the mk1 celica i believe heh

Hey thanks for your info and repy

Yeah soz there its way to ritch i mis read the dyno how the scales are set. The dyno says it went too low off the scale im not sure of the number. i might have to scan the sheet and post that. One other thing i noticed is that at peak power the boost dropped off to a flat curv at 10psi. I will be trying a boost leak test and then i will know if its the ecu. Hopefully we can sort this out cos i dunno if the 145 mark is all the car has or if it has more in her!

Cheers

Frank (azzurro)

hmmm you could have a boost leak... generally if it's real bad you will not be able to get on boost properly and it won't idle the best and it will also poke black/grey smoke out the exhaust

check all your intercooler pipes.. specially the one off the turbo as that is a common culprit