Turns out my tial wastegate has a 9lb spring in there, i didnt want to boost that much yet but not sure what i can do, unless someone wants to trade springs Anyway would 9psi spring be too much for stock injectors and the fmu. Im sure this has been covered many times.. and i know where the search button is.

btw: 98 b18b1

 

yeah it will work with stock injectors but just keep in mind your running high fuel pressure Aprox 9psi x12 =108 plus aprox 45 static fuel pres= 153 LBS OF FUEL pressure!!

so there you go. either get bigger injectors to lowwer the pressure and run maybe a afc

Dont get me wrong it will run but for how long?

gl

 

on my old car, i had a dragIII kit on a stock gsr, running stock injectors and 12:1 fmu... was running 9 psi, lasted a whole month(surprised it held up that long) before i had to say goodbye to my rings. Happened at Famoso raceway... lets just say that was a really smokey 4 hour drive home.

 

SMC+ and 450 DSM injectors will do you right with that kind of boost, so you dont run as high static fuel pressure

 

I ran my stock B16 @ 8-10psi stock injectors, 12:1 FMU w/inline pump, minor fuel trimming w/ VAFC for 2 years. Got lucky- no problems.

 

you just need to make sure you have a bad *** high pressure fuel pump

 

You could always buy a smaller spring for the tial... You make it sound like if nobody will trade you then you're stuck with 9psi. It's well worth the cost of the spring to save your motor!

 

If you run your wastegate signal directly off of your compressor you will be lucky to see 7 psi at the intake manifold. I think you will be fine. My friend has a turbonetics W/G with a 7 lb spring and he saw 4 psi at the manifold. We switched his W/G signal fom the compressor to the intake mani and it went up to 5 psi. You need to acount for some pressure loss. You'll be fine.


[Modified by turbosol, 9:12 PM 1/22/2003]