Turbo PSI/Manual or automatic.

Post by **sick skyline** » Mon Jul 19, 2010 7:18 pm

Hey, so i just recently bought a skyline gts-t with an rb25det swap. Im starting to mod it, and i want to throw a boost controller in it. What is a comftorable PSI to run on, on stock internals? there is also a small front mount intercooler, hks intake on the engine. Also whats better, automatic or manual boost controller?

Post by **SullivanRacing06** » Mon Jul 19, 2010 7:46 pm

idk were to start.........

Post by **sick skyline** » Mon Jul 19, 2010 7:56 pm

What do you mean?

Post by **littlemimus** » Mon Jul 19, 2010 8:02 pm

DO NOT get a manual boost controller. they are prone to spike psi. get a electronic one. but before you throw more boost at any car you should really research what your doing. you may end up with a rod through your block

Post by **sick skyline** » Mon Jul 19, 2010 8:06 pm

Well im not talkin alot mpore boost, just enough to run on a pretty base stock engine, still new to this tuning thing!! But i just need some opinions, thanks for the advice though man!

Post by **littlemimus** » Mon Jul 19, 2010 8:36 pm

honestly i wouldnt up the boost. get full bolt ons and see how it runs. do things like 3inch exhaust, bigger intercooler(dont go to big) better radiator. things like that. tune the car and u can get good hp numbers

Post by **SullivanRacing06** » Tue Jul 20, 2010 10:55 am

do not get a mbc?

ive run a mbc on my rb up to 28 psi, no spiking, thats from to small of a w/g as well

Post by **sick skyline** » Tue Jul 20, 2010 1:00 pm

What other things do you have in your car to run 28? thats so much boost!

Post by **Gold Digger** » Tue Jul 20, 2010 5:34 pm

On a stock turbined RB25, don't run more than 14.7psi. The ceramic exhaust wheels tend to explode on prolonged runs of high boost. If you set it at about 14psi, you'd be good to go. 14.7psi is the same as 1.0kg (1 bar) of boost.

Not sure what stock internals will hold on a 25DET, but when I had my C33 Laurel with RB20DET, I was running 14psi with an HKS EVC I boost controller, single-dual-single front pipe, 3.25" RS*R Invidia exhaust and M's Super Air intake. I was hitting about 240 on the dyno with over 100KM on the engine. I enjoyed that car A LOT. I miss it from time to time, but happy with my upgrade.

Post by **SullivanRacing06** » Tue Jul 20, 2010 8:22 pm

sick skyline wrote:What other things do you have in your car to run 28? thats so much boost!

built rb26, t78-33d ect ect u know that kind of stuff

Post by **littlemimus** » Wed Jul 21, 2010 2:13 pm

SullivanRacing06 wrote:do not get a mbc?

ive run a mbc on my rb up to 28 psi, no spiking, thats from to small of a w/g as well

maybe its just the brand i used heh

Turbo PSI/Manual or automatic.

Turbo PSI/Manual or automatic.

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