Holley/Demon Carb stumble
Ok for those that need/want more info here it is.
first run was with req at 9 psi launched hard with no sign of stumble or sound of possible stumble. Top of 2nt gear it popped. shift into third and it came back around 4500 rpm lifted before the finish line 70 mph and a 8.18 et with a 60 foot of 1.748
So i dropped the fuel pressure down to 6.5 psi. Didn't affect the fuel bowls much so i left them alone, and made another run. At the finish line it started to pop and bang 85.5 mph, 8.00 et and a 1.752.
So took my sunglasses off and put my reading glasses on and set both bowls dead nuts center in the bowl. had to raise both up a little with the front needing the most adjustment.
No bog no pop or bang and i ran it past the finish like to hit my shift light in 3d gear, NOPE no bang!!!!. Worked great and did so the rest of the day. 86.3 mph, 7.89, and a 1.736.
As you can see above i made the next 6 round of racing, got the win in the finals. I dialed a 7.83 cut a .006 light and ran a 7.819. He dialed a 7.35 and ran a 7.30. and my 60 foot time was a 1.694.(only twice have i 60 footed in the 1.6's)
My best time is a [email protected] and that was in 7900 foot air. today the best was 8937 and most of the day was 90XX to 9391 adj altitude.
Didn't have to do any big smokey burnout to make it stick, hooked all day long at 14.5 psi in the slicks.
took some Gopro of the suspension and some other fun and funny things but haven't downloaded and edited then... Maybe tomorrow.
Got called out to work about 3d round. But was able to talk the operator threw the problem so i didn't have to leave. Sure glad too!!!!:D
OK now for the Proform metering blocks. I just threw them on! didn't clean or check orifice sizes just threw them one.
It's a brass jet in the top but that one for the emulsions is a brass plug. So there is 4 small opening and one plugged. wasn't happy with this when looked at it...........But i'm fine with it now..:thumbsup:
Ok for those that need/want more info here it is.
first run was with req at 9 psi launched hard with no sign of stumble or sound of possible stumble. Top of 2nt gear it popped. shift into third and it came back around 4500 rpm lifted before the finish line 70 mph and a 8.18 et with a 60 foot of 1.748
So i dropped the fuel pressure down to 6.5 psi. Didn't affect the fuel bowls much so i left them alone, and made another run. At the finish line it started to pop and bang 85.5 mph, 8.00 et and a 1.752.
So took my sunglasses off and put my reading glasses on and set both bowls dead nuts center in the bowl. had to raise both up a little with the front needing the most adjustment.
No bog no pop or bang and i ran it past the finish like to hit my shift light in 3d gear, NOPE no bang!!!!. Worked great and did so the rest of the day. 86.3 mph, 7.89, and a 1.736.
As you can see above i made the next 6 round of racing, got the win in the finals. I dialed a 7.83 cut a .006 light and ran a 7.819. He dialed a 7.35 and ran a 7.30. and my 60 foot time was a 1.694.(only twice have i 60 footed in the 1.6's)
My best time is a [email protected] and that was in 7900 foot air. today the best was 8937 and most of the day was 90XX to 9391 adj altitude.
Didn't have to do any big smokey burnout to make it stick, hooked all day long at 14.5 psi in the slicks.
took some Gopro of the suspension and some other fun and funny things but haven't downloaded and edited then... Maybe tomorrow.
Got called out to work about 3d round. But was able to talk the operator threw the problem so i didn't have to leave. Sure glad too!!!!:D
OK now for the Proform metering blocks. I just threw them on! didn't clean or check orifice sizes just threw them one.
It's a brass jet in the top but that one for the emulsions is a brass plug. So there is 4 small opening and one plugged. wasn't happy with this when looked at it...........But i'm fine with it now..:thumbsup:
