Just after some peoples guesses on power outputs with these common 1jz mods. Assume the car is manual (r154). I'm guessing the car itself is irrelevant.
STAGE 1
1.0 bar of stable boost (any digital controller)
Front mount intercooler
standard "y" pipe
3" exhaust and 3" high flow cat
440cc 2jz injectors
SAFC II, with a suitable tune for all pre-mentioned mods
Estimation of 230rwkw
STAGE 2
Higher capacity fuel pump
High flowed, steel wheeled ct12a turbos
3" dump pipe
Boost increased to the maximum efficiency of the modified ct12a
SAFC II, with a suitable tune for all pre-mentioned mods
Estimated power 250rwkw?
STAGE 3
Adjustable cam gears
256 degree cam shafts on inlet and exhaust
SAFC II, with a suitable tune for all pre-mentioned mods
Estimated power ???rwkw
Basically after peoples guesses on the power output on each stage, also suggestions on parts not covered that may have been missed.
stage one is about right provided you swap in dump pipes and swap out 440cc injectors.
You can do that power level on stock injectors [or 225rwkw at 15psi] but need a good flow exhaust.
Your turbos will thank you with a long and happy life due to reduced back pressure and associated heat.
I am not guessing or using second hand info,I am quoting my setup.I believe you should have a bigger fuel pump right away also,Walbro is good.[for soarer dump pipes Lew of Marlew Engineering I think]
Stage 2,wow if you only get 20 or 30 rwkw for 2000 bucks worth of steel wheel hi flo ct12a's you wouldnt do it,surely? I would also like to know what these are capable of and how they would compare with nissan turbos like little GTR t28's which can do a combined 500hp at the flywheel [two] or t28's off an rb20.I dontb pretend to know a lot about these,quoting stuff s/hand here.[see "gtr t28" search for sale engines etc]
Stage 3 you would be looking for some control over ignition timing as well.
Should get plenty of replies,Cheers.Pete.
250rwkw was a conservative guess, I have no idea what they are capable of flowing to or what their maximum boost efficiency is but thanks a lot for your power quote manmx83
Sun, 20 March 2005 12:05
