cannon_si

i got a turbo b16 tuned on hondata s300 using a mac solenoid all of a sudden i get a cut in third gear only at 8000rpms? my redline is at 8700 and the car sometimes does a jerk when im cruising around 3500-4000rpms could this be fuel related?

0mtber

iTrader: (2)

Datalog a pass & see what is going on...

cannon_si

your right but i really dont know how to record and save and i don't know how to read the datalog to see whats my problem is, i THINK its fuel cause last night i filled the car up with gas did some runs and it was perfect so i think its lack of gas pressure

cannon_si

and it only happens in third and higher gears not first and second

0mtber

iTrader: (2)

If your car is cutting out at wide open throttle & you don't have a wideband oxygen sensor gauge installed in the vehicle. I highly recommend you take the car to your hondata tuner to have the vehicle inspected to ensure the air fuel ratios are still on par etc.

cannon_si

will a restrictive dump tube cause creep cause i purchased dump tube off inline pro and had to cut and weld a little smaller braided tube to the inline pro dump so its like 38 to 35 the tube will this choke cause boost creep???

0mtber

iTrader: (2)

Sure it can, it would have to be a tiny, restrictive dump.

Simply guessing at what is going on is pointless.
Connect a laptop & datalog what is happening with a wideband or take the car to a tuner.

2k.civic.si

damn mtber...you got more patience then me.

cannon_si

im datalog my car later today and let you guys look at my file thanks for helping

cannon_si

well i finally did a data log it looks like it was hitting boost cut, its set at 16psi but why would it boost cut i have a inline pro manifold and 38mm tial external wastgate with a 6psi sping in it this should be good right? any thoughs??? here is my file so you guys can look at my datalog

cannon_si

i also lowered the duty cycle from 50 to 45 then it relined perfect no cut did i lower the psi?

0mtber

iTrader: (2)

If you lowered the duty cycle on the boost control, it lowered the boost. Congratulations you have resolved your issue.

cannon_si

lol ya i guess i did but one thing that confuses me the tial wastgate is suppose to hold this boost perfect correct? what would make it creep like that at higher rpm