SmokeyVette
Adrenaline Junkie
Ok, I feel really stupid asking this as I like to pride myself on how well I handle problems but I just can't get a handle on this one.
First off, the basics:
My Holley fuel pump flows 80 GPH.
My Performer carb is a 600 CFM unit with .392 jets and the metering rod numbers are 6842.
Accelerator pump is set at the hole closest to the top (least amount of leverage possible any other setting and it gets too much fuel off the line).
When I nail it, she jumps off the line and pulls HARD though first gear, then it hits second and pulls HARD until about 4,000 RPM around then it starts feeling like it's running out of gas. At that point I usually get out of it, today I got out of it then nailed it again at which point it pulled hard again until about 5,000 when I hit 5500 I shifted into third and she started surging.
The reason why I think that it is heat related is because it doesn't do it on the colder mornings after it's had ample time to warm-up (30-45 minutes) and when it's just coming up to temp on the hotter days it doesn't do it but after it gets to 180 it starts doing it and it just gets worse the more I ride around.
I insulated the steel line going from the fuel pump to the carb with a foil backed insulation, no change. The steel line comes out of the pump then runs along the front of the engine and then 90s over the intake to the carb where it goes to rubber line into the carb.
I just can't figure this out short of using a "cool can" the only reason why I haven't made one up yet is because I'm not really sure that it would fix the problem.
Have any of you had a problem like this on hotter afternoons and, if so, how did you fix the problem?
Any suggestions as to how I can keep that damn Mach 1 from embarrassing me after my car gets good and warm? I never can seem to find him when my car ISN'T doing it.
First off, the basics:
My Holley fuel pump flows 80 GPH.
My Performer carb is a 600 CFM unit with .392 jets and the metering rod numbers are 6842.
Accelerator pump is set at the hole closest to the top (least amount of leverage possible any other setting and it gets too much fuel off the line).
When I nail it, she jumps off the line and pulls HARD though first gear, then it hits second and pulls HARD until about 4,000 RPM around then it starts feeling like it's running out of gas. At that point I usually get out of it, today I got out of it then nailed it again at which point it pulled hard again until about 5,000 when I hit 5500 I shifted into third and she started surging.
The reason why I think that it is heat related is because it doesn't do it on the colder mornings after it's had ample time to warm-up (30-45 minutes) and when it's just coming up to temp on the hotter days it doesn't do it but after it gets to 180 it starts doing it and it just gets worse the more I ride around.
I insulated the steel line going from the fuel pump to the carb with a foil backed insulation, no change. The steel line comes out of the pump then runs along the front of the engine and then 90s over the intake to the carb where it goes to rubber line into the carb.
I just can't figure this out short of using a "cool can" the only reason why I haven't made one up yet is because I'm not really sure that it would fix the problem.
Have any of you had a problem like this on hotter afternoons and, if so, how did you fix the problem?
Any suggestions as to how I can keep that damn Mach 1 from embarrassing me after my car gets good and warm? I never can seem to find him when my car ISN'T doing it.