help me build?

[theciviceater89]

i am just looking to make about 400 bhp...but...i wanna try and keep the cost to a minimum.


i am working with a twin turbo 2jz, so...i dont think 400 bhp is too difficult...

 

[slowsupratt]

BPU for a 2jz gets you right abound 400hp.

 

[theciviceater89]

bpu means basic power upgrades? such as...what?> intake, exhaust?...anything else?

 

[Nopaint]

intake, full exhaust... and a boost controller

 

[theciviceater89]

thats it? so what if i twent with forged pistons and a better flywheel? how much do you think i will have then?

 

[OneJoeZee]

Pistons and a flywheel aren't power adders... Unless those pistons are higher compression.

 

[annoyingrob]

A lightweight flywheel could theoretically free up some power with the reduced rotating mass.....

....but I don't think it would matter at all.

400bhp is pretty easy. My 1JZ on cams and stock boost made 315 to the wheels.

 

[OneJoeZee]

A lightweight flywheel could theoretically free up some power with the reduced rotating mass.....

That's why I picked my words carefully and said power adder.

 

[theciviceater89]

hm.. ok... cool. i was thinking..each turbo on 7.5 psi? too much? too little? can i go for more on stock turbos?

 

[Nopaint]

ya... why not

 

[OneJoeZee]

hm.. ok... cool. i was thinking..each turbo on 7.5 psi? too much? too little? can i go for more on stock turbos?

It doesn't work like that. one turbo pushing 7.5psi + another turbo pushing 7.5psi =/ 15psi. It's still 7.5PSI. The stock turbos will not run boost that low.

15psi is 15psi from both turbos. You're doubling the flow, not the pressure.

 

[OneJoeZee]

ya... why not

Read above.

 

[theciviceater89]

huh...so..then, how much is border line for boost on stock? i am just worried about too much boost on the engine. i dont wanna screw crap up. maybe 10 psi each then?

 

[foreverpsycotic]

are these jdm or usdm turbos? regardless, intake, exhaust, downpipe, highflow cat(or testpipe), FMIC, hardpipes, boost controller, USDM injectors (or other 540cc injectors), walbro(or stock TT MKIV pump) AFPR and some way to tune should get you there.

 

[OneJoeZee]

huh...so..then, how much is border line for boost on stock?

about 10-11psi.

 

[Nopaint]

Read above.

I'm soo sorry... I'm still a noob I know..:cry:

 

[Nopaint]

about 10-11psi.

so what's the max on 1jz turbos? 18... before they go boom?

 

[theciviceater89]

lolz....FMIC?

and i was gunna do a little dress up kit. all pipes become metal right? then helps performance, right?

also...2jz turbos are safe at 10 psi? so..two turbos, 10 psi=20 pounds of boost...man, my idiocy amazes even me. so..it wont hurt the engine itself with a total 0f 20 psi?

 

[OneJoeZee]

so what's the max on 1jz turbos? 18... before they go boom?

No. 18psi will not magically make the 1jz turbos go "boom." High EGTs and oil contamination will kill them though.

 

[annoyingrob]

also...2jz turbos are safe at 10 psi? so..two turbos, 10 psi=20 pounds of boost...man, my idiocy amazes even me. so..it wont hurt the engine itself with a total 0f 20 psi?

Ok, your comprehension is FTL. Seriously, this has been explained in this thread already.
PRESSURES DO NOT WORK LIKE THAT

You don't get 10psi + 10psi. If both turbos are set at 10psi (which is stock BTW), you get a TOTAL pressure of..........10psi! The only difference in a twin setup vs a single is that each turbo will be putting out half the airflow at that pressure vs a single turbo.