went to the track this past weekend running 5 pounds. I ran a 14.7 I have a 95 integra ls with a custom t3/t4 setup. I turned up the boost to about 12-13 pounds and went for my next run. I took off and the needle started to bounce between 4-5 thousand rpm's Question is this lack of fuel I am running on a stock fuel pump and injectors. But I ran 12 pounds before and it was fine. Also After I tried it at 11-12 pounds I turned it back down to 6-7 and it did the same thing. Fuel cut off at 4-5 thousand. Any thoughts suggestions

 

Does it happen in every grear at 4-5k rpm? If so it might be a problem with your ignition.

 

13-14 LBS on stock injectors and pump!!??? You're asking for trouble man...

Spend some $$$ and do it right.

Tom

 

Also running stock ignition fuel pump and injectors. After I shifted into second gear and it did it I just coasted down the track. When I turned it down to 6 pounds it did the same thing so I could only run 5 pounds. I have ran 6 pounds b4 so.... thats why I am asking here.

 

what fuel setup are u using fmu,aic,DFI or what

 

Look guys this is what I have t3t4 fmax turbo kit, with FMI, vortech fmu, and hks bov FMI no ignition stock injectors stock fp. Went to the track sat runnin at 5 pounds ran a 14.7 changed the boost to 11 pounds in the waiting lane went up to the light took off and the fuel cut off at 4000 rpm's. So I coasted down the track turned the boost down to 7 pounds and it did the same thing. So I then turned it back down to 5 pounds and it ran fine. Question is could not having a good fuel pump cause this or not having a better ignition. Please help thanks

 

if u have a f-max kit u have a mf2 so why do u have a vortech fmu

 

like i said orignally it could be a problem with your ignition... does fuel definately cutoff, i.e. lean on the meter or does it seem like its cutting off? My friend had a similar problem with his CRX and it happened to be a bad distributor

 

as far as having a Fmax kit I dont think it really matters what fmu I have or what came with what. If you want to know I had a greddy kit on my crx then I sold it and kept the fmu when I bought the fmax kit from someone it did not have a fmu so I used that one.

Now about the fuel I was not really looking at the guage going down the track. So.....