undrgrnd

My mechanic is telling me on my 310 injectors i can only boost around 7 pounds is this true?

boostnbee

7 punds doesnt mean ****... Whats your setup?
Engine: ---
Turbo Size: -----
Stock motor/ Built: ----

undrgrnd

my car was running fine on 7 puonds of bosst before i got my new block put on and crome put on. but now when i floor it, it wants to cut out around 5 thousand rpms. he says its because my injectors r maxed but it wasnt doing this before..

so im guessing he doesnt know how to tune right. someone help me please i paid too much money for my car to run shitty now

undrgrnd

i have a 00 si greddy turbo kit percision intercooler, just got a sleeved b20 block put on with eagle rods, wiseco pistons, all new internals, the crome mother board the works really. but now all it does is cut out when i get on it

SovXietday

Need to know the following.

-What MAP sensor are you running
-Do you have a working wideband in the car. I'm talking wideband O2 sensor with readout, not an autometer AF gauge.
-How much boost are you currently trying to run. Still 7psi or are you trying to push more?

310cc injectors are good for maybe 250whp tops. You are probably getting very close to maxing them out, but you would need to have a wideband on it to know. If your "mechanic" has been tuning you without one you'd best bring your car to someone who knows what they're doing / has the right equipment to be tuning other people's cars.

TunerToys

Did he tell you what duty cycle they were maxing out at? Or what the wideband was reading when it begins cutting out? If he can't tell you, get a new tuner.

Craig

undrgrnd

yes i have a wide band o2 sensor with a readout and i have it turned down to around 5 pounds of boost and i believe its the stock map sensor im not sure