Why are my TRAP speeds so LOW?
Thread Starter
Registered User
Joined: Feb 2002
Posts: 1,106
From: Toledo, Ohio USA
Why are my TRAP speeds so LOW?
Times are in the signature.
Where should my trap speeds be?
My car feels like it runs out of steam in the end, I suspect fuel pump or stock 22# injectors since I'm @ 400HP....
I just wanted to know what others think about this, thanks.
One last note, what's a good way to check to see if the fuel pump is not failing @ high RPM?
Where should my trap speeds be?
My car feels like it runs out of steam in the end, I suspect fuel pump or stock 22# injectors since I'm @ 400HP....
I just wanted to know what others think about this, thanks.
One last note, what's a good way to check to see if the fuel pump is not failing @ high RPM?
Last edited by ZPaul2Fresh8; Jan 22, 2004 at 10:27 AM.
Registered User
Joined: Oct 1999
Posts: 1,490
From: Tampa Florida
i think only 93 z28's had 22# injectors...
Could be knock, could be fuel, perhaps valve float.
Go to autozone or sears and pick up a fuel pressure gauge hook it up to the fuel valve.. if a 93 is on your drivers side fuel rail, if its 94+ its behind the intake manifold closer to the passenger side, pointing up and out at an angle towards the drivers side.
Close your hood and run the line to the windshield.... tape the pressure gauge to the windshield and go floor it down the street.
400 flywheel hp should be good for 109 traps with an auto 111 with a m6
400 to the ground should be good for 114 in an auto and a 116 in an m6
Could be knock, could be fuel, perhaps valve float.
Go to autozone or sears and pick up a fuel pressure gauge hook it up to the fuel valve.. if a 93 is on your drivers side fuel rail, if its 94+ its behind the intake manifold closer to the passenger side, pointing up and out at an angle towards the drivers side.
Close your hood and run the line to the windshield.... tape the pressure gauge to the windshield and go floor it down the street.
400 flywheel hp should be good for 109 traps with an auto 111 with a m6
400 to the ground should be good for 114 in an auto and a 116 in an m6
Registered User
Joined: Feb 2003
Posts: 1,853
From: Christiansburg, VA
looking at your mods you have
CAI
longtube headers/borla catback
hotcam kit
have you had it dynoed?
where did the 400HP come from?
you should be trapping 108-110 with those mods
it quite possibly could be your fuel pump, crapping out the high rpms. i had that problem last fall
jesse
CAI
longtube headers/borla catback
hotcam kit
have you had it dynoed?
where did the 400HP come from?
you should be trapping 108-110 with those mods
it quite possibly could be your fuel pump, crapping out the high rpms. i had that problem last fall
jesse
Thread Starter
Registered User
Joined: Feb 2002
Posts: 1,106
From: Toledo, Ohio USA
Originally posted by QCKZ28
looking at your mods you have
CAI
longtube headers/borla catback
hotcam kit
have you had it dynoed?
where did the 400HP come from?
jesse
looking at your mods you have
CAI
longtube headers/borla catback
hotcam kit
have you had it dynoed?
where did the 400HP come from?
jesse
Oh yeah, I have a 93. I have a strong feeling it's the injectors. Any other ideas?
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