Slower than stock!!!

C

crcrzy12

New Member

Jul 2, 2004

15

0

0

Sep 13, 2004

#1

• Sep 13, 2004

• #1

I just put in GT-40 (y-303) aluminum heads, edelbrock performer intake, 70mm tb, headers, 1.7 roller rockers, new 73mm MAF, and the car feels weaker than it did before I added all the parts...I have an adjustable fuel regulator and haven't messed with it yet, I also have a larger than stock fuel pump...does anyone know why it's running like crap???

 

N8Miller

I need NOS....make it 2 of the big ones

Founding Member

Jul 26, 2000

2,661

0

0

Kingston, PA, USA

Sep 13, 2004

#2

• Sep 13, 2004

• #2

what is the timing set at?
is the MAF calibrated for your injectors?
at the track, my car was bogging down, seemed slow. i upped the FP and got it to a mid-13.... got lots more left in it.

 

FreeGT

New Member

Dec 9, 2003

81

0

0

St. Louis

Sep 13, 2004

#3

• Sep 13, 2004

• #3

there very well could be something amiss, but the bottom of your powerband will seem somewhat sluggish, so sometimes people just think the car is weaker due to the lack of low end torque. Take it to the track and see..............

 

Musclecarfan88

Member

Dec 30, 2002

184

0

16

Indianapolis, Indiana

Sep 13, 2004

#4

• Sep 13, 2004

• #4

yeah, take it to the track. my car feels SLOWer than my moms 00 malibu. far from the case cause i can actually run with my friends 95 z28 with the lt4 conversion.

 

tomst9

Founding Member

Jun 17, 2002

851

0

0

Bethlehem Pa

Sep 13, 2004

#5

• Sep 13, 2004

• #5

make sure that you give it a some more timing, but with the aluminum heads, the combustion chamber is cooler, so that allows you to run more timing. Stick with it, i'm in the same boat as you. MY car doesn't make nearly the power it should, but i'll figure it out.
tom