On my way home to change back to the 0.095's, it seemed to run closer to 12.2 AFR. So I decided to leave those 0.098 jets in.
I changed direction and drove up to the track. I got 1 good run in, and the problems started again. I'm convinced now it is vapor locking. As it seems that it gets about to where the fuel that was in the lines about at the fuel pump, make it to the float bowl, and after that it seems to crap out. Seems to fit my idea of vapor locking. And the first time everything was cooler. So, I'm going to add a low pressure fuel pump to the Scamp, in or near the tank. That should push fuel past a vapor locked fuel pump. And cool the fuel pump with cool fuel etc.
But to the one good run. OH WHAT A GLORIOUS RUN IT WAS! The Scamp hooked up good on the line, and sounded AWESOME all the way down. I had a Camaro line up next to me, and I got to beat him. Not sure what kind of engine it had. Admittedly, it might have been a V6. But it was fun, we ran side by side until I hit 3rd, and then started pulling away. What started this was that I wanted to beat that old 56 (or so) Chevy that was super-loud, big fat tires, all kind of gauges, and his ran a 14.2 second ET. Here are the numbers:
Reaction: 0.017 (not that it matters)
60 feet: 2.181 (all time best)
330 feet: 6.033 (all time best)
1/8 ET: 9.178 (all time best)
1/8 Trap: 78.00 (all time best)
1000 Ft: 11.895 (all time best)
1/4 ET: 14.179 (all time best)
1/4 Trap: 99.01 (all time best)
As you can see, I'm at the point where I can beat that old Chevy. I didn't see him there this time. But I got to get this vapor locking resolved. Also, on that 1 run, I accidently short shifted first (a little). I think if I held it another 500 rpm, I could have made my 13.999 second E.T. This run was NOT BAD on these pizza cutter street radials!
What I'd like the "teams" advice on. Should I be looking for an external pump, or in-tank pump? If external, is there a particular low pressure pump that I should be focused on? There's like 10 that come up on Summit Racing. The Summit technical guys are pointing me to the Carter P60898 (Carter Universal Rotary Vane Electric Fuel Pumps P60898). It seems quite a bit bigger than the others. I'd like a more compact pump.
What do you guys recommend?
7milesout
I changed direction and drove up to the track. I got 1 good run in, and the problems started again. I'm convinced now it is vapor locking. As it seems that it gets about to where the fuel that was in the lines about at the fuel pump, make it to the float bowl, and after that it seems to crap out. Seems to fit my idea of vapor locking. And the first time everything was cooler. So, I'm going to add a low pressure fuel pump to the Scamp, in or near the tank. That should push fuel past a vapor locked fuel pump. And cool the fuel pump with cool fuel etc.
But to the one good run. OH WHAT A GLORIOUS RUN IT WAS! The Scamp hooked up good on the line, and sounded AWESOME all the way down. I had a Camaro line up next to me, and I got to beat him. Not sure what kind of engine it had. Admittedly, it might have been a V6. But it was fun, we ran side by side until I hit 3rd, and then started pulling away. What started this was that I wanted to beat that old 56 (or so) Chevy that was super-loud, big fat tires, all kind of gauges, and his ran a 14.2 second ET. Here are the numbers:
Reaction: 0.017 (not that it matters)
60 feet: 2.181 (all time best)
330 feet: 6.033 (all time best)
1/8 ET: 9.178 (all time best)
1/8 Trap: 78.00 (all time best)
1000 Ft: 11.895 (all time best)
1/4 ET: 14.179 (all time best)
1/4 Trap: 99.01 (all time best)
As you can see, I'm at the point where I can beat that old Chevy. I didn't see him there this time. But I got to get this vapor locking resolved. Also, on that 1 run, I accidently short shifted first (a little). I think if I held it another 500 rpm, I could have made my 13.999 second E.T. This run was NOT BAD on these pizza cutter street radials!
What I'd like the "teams" advice on. Should I be looking for an external pump, or in-tank pump? If external, is there a particular low pressure pump that I should be focused on? There's like 10 that come up on Summit Racing. The Summit technical guys are pointing me to the Carter P60898 (Carter Universal Rotary Vane Electric Fuel Pumps P60898). It seems quite a bit bigger than the others. I'd like a more compact pump.
What do you guys recommend?
7milesout
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