Oh hey guys, I'm having a bit of trouble with my motor vehicle atm and im needing help...Here are the details of my vehicle:
R32 GTST
Rb25neo det (original turbo, ecu, etc.)
Rb25 gearbox (R33 box)
Random fuel pressure reg.
Boost t-piece
Bosch 400hp fuel pump + surge tank
aftermarket intercooler + piping
Heres the problem,
The car idles fine, sounds perfect, feels perfect. revs fine no worries standing still. When i drive its fine, until i hit about 2-3psi of boost. at this stage the engine starts to missfire like a tard. If i keep flooring it and manage to push to 5-6psi the engine stalls.
Things i've done to try and fix the problem:
Upgraded my fuel pump to the bosch 400 hp, originally thought there wasnt enough fuel getting to the engine. After installation problem got worse. I bought new spark plugs and made sure they were the correct gap. no change. Rreplaced all the rubber pipe connectors for the intercooler pipes as they were old and some had holes. Problem is stil aparent although now i have a sweet dose sound ...checked all my vac hoses and such...ive visually inspected coil plugs and found no signs of cracking or burns from arcing out but will check tomorrow propperly...
other random problem:
When i first drove the car with the new engine in, i noticed the wastegate to the turbo was opening straight away. ??? i borrowed my mates t piece to combat this??? maybe this has something to do with the problem im not sure...
I would really appreciate advise as im sick and tired of seeing my car on the side of the road...WANT TO CRUISE!!!
Thanks, Edward