bought some PTE 680 injectors and..........

[peregrine]

my afc settings only changed about -2% at WOT. i added a 57 trim pte turbo and an extreme turbo aluminum intake tube with a 2" bypass pipe at the same time. could the air being flowed now actually make it only
-2%? ive also heard that pte injectors dont flow as much as theyre rated is this true? i still have the stock 1g regulator so my base FP is still stock. i plan on buying a FPR very soon and potting a 255 high pressure in place of the 190. thanks.

 

[kpt4321]

What injectors did you have?

Even if the new turbo is flowing more air, the correction factors should still be pretty negative.


....Kyle T.

 

[swordfish]

IPO did flow tests on the PTE injectors. They flow aboiut 30cc less than what they are rated. IE 680=650, 780=750 and 880=850.

jeff

 

[peregrine]

well when i run race gas im well into the negative. in the neighborhood of -15-20%. the idle knob is still like +10% though. any less and it wants to die. i was sure that when i put these in that i would be able to run 17 psi on pump gas. i tuned and tuned for hours to no avail. i have to put the afc at +15% to keep it from knocking on 91 octane and i cant turn my boost down lower than 17 psi because of the wastegate. i figure that ill just run race gas all the time as now the car is starting to get scary fast. i still have the stock pressure regulator and was wondering if that could affect my tuning abilities. anyone? i think base pressure on the 1g is 36-37 and i was thingking that maybe turning it up to 40 base might help the fuel curve. dont know. its weird because i thought for sure that i would need to turn the pressure DOWN. thanks.

 

[jdmawd]

Originally posted by peregrine
i figure that ill just run race gas all the time

Boy thats going to cost a fortune.

i still have the stock pressure regulator and was wondering if that could affect my tuning abilities.

No way overrun is good for tuning

i still have the stock pressure regulator

i was thingking that maybe turning it up to 40 base might help the fuel curve. i thought for sure that i would need to turn the pressure DOWN. thanks.

 

[peregrine]

it would over run with a big pump jdm. not a afc controlled injectors.