Last night i opened up my car and when i hit 4th gear around 100mph 5k rpm my car was hesitating and letting out a nasty back fire, i am running 16psi boost have a aem intake, and hks ssq bov and hard pipe, with a turbo xs manual boost controller. is it possible i am running to much boost, dont the stock evo's run like 19 psi boost or something??? Someone told me its fuel starvation and that i should get a bigger fuel pump??? any suggestions or similar problems?

 

someone might want to move this into the evo forums.

 

KABOOM!!!!

seriously, get a compression test. and post more symptoms of what your car is doing.

 

Sorry newbie to the site, so i was gunning my car took it to about 6.5k rpm before shifting to 2nd, same for 3rd, and then as im pulling in 4th the car back fires then keeps going then back fires again, thats when i was up around a 100 at 5k rpms so i let off, possible timing do you think? u said something about a compression test u think the engine compression is off?

 

16 psi is lower than stock. correct me if im wrong, but i believe that it is like 19 or 20 pounds. im not too sure why you think he is more likely to blow his motor now than stock.

 

i missed the EVO part....i'm dumb. sorry. (btw, i always thought the evo ran 14psi stock....then again, i'm no evo buff)

 

isnt this threat in EVO General also??

 

Yeah, this thread should be deleted. We answered his other one.

 

send a link to DJ. (BlacksheepDJ). tell him about it and it'll get locked up.