okay......i just barely got my t2 motor shipped in and whats the max boost i could go on a stock turbo for both drag and drift and what is the results if i ran a 3 inch downpipe and 3 inch straight pipe (no cat or resonator...just straight) to a hks hi power or a apexi n1 exti???

 

I ran 12 psi for some time on a stock turbo before it started blowing smoke like crazy. I'd say 10 lbs and below is plenty safe. You can do 12 lbs but it will wear out pretty quickly. I turned it up over 12 but got no power increase.

BTW by turning up the boost, you will need some sort of timing/fuel management. You will also need to port the wastegate on the turbo to prevent a lot of boost creep.

 

1. Port wastegate
2. Buy 720cc secondaries
3. Buy Rtek 1.7 or other fuel controller
4. Buy Walbro 255 or FD fuel pump & rewire

Don't run 10+ PSI on stock injectors and fuel pump. It'll be fast and fun for awhile, but you'll end up with a blown engine eventually.

 

S4 or S5 motor....compression test before you start cranking it up.

 

wait..whats the difference between the s4 and s5 and what year is which???i just bought the motor from an uncles shop...

 

86-88 is s4 89-92 is s5

 

how many miles are on the motor?

 

I ran search psi on my search rx7.

 

ooo...its a s5 then....he told me it has 60k on it...but not sure