Help "tune" my supercharged 360 1972 Dart, please!!
The following day we welded up the header primary tube with the hole in it and shimmed the engine about 1/4-inch (higher) for more clearence.
We also got the new water pump installed and changed the oil. My dad robbed the Sun 'Super Tach II' out of the 1964 Ford F-100 and hooked it up so he had some type of reference.
I also mounted/balanced the slicks on the rear rallye wheels for the car and that pretty much left it as completed as it was getting.
Unfortunately we didn't have time to finish up the slap stick so there would be no shifting into the gears. Simply put the car in 'D' and let the transmission pick when to shift.
The good news is that the trip went without anything grenading itself.
The car launched straight and drove smoothly down the track like a Sunday cruise.
The bad news is we only got 2 passes and then the event got rained out.
That's too bad because there was only about 50 cars down there and we could have easily got 10+ runs in that night. We got there at 5:00pm and a few people already had 5 runs in by 7:00pm when it was cancelled!
The first run seemed to go pretty good, however the serpentine belt was off the pullies by a tooth (or was it two?). We left the timing at 8 degrees initial so we could slowly crank it up on each pass.
It didn't run very fast, however your first outing with a street car on a new set-up surely isn't going to be impressive anyways. It ran a 14.0288 @ 98.11 mph. Not Earth shattering by any means, but considering the car was shifting ~4,600 RPMs, the carburetor is not dailed in (and wrong altogether), the stock transmission has a low stall speed and no shift kit, that's not so bad either.
My dad said it was extremely strong through the middle of the track, but felt like it nosed over on the big end?!?
Heh. We'll get it there.
I decided to put the shorter 'race' belt on (takes about 20 seconds to swap belts on this system we have) which just bypasses the power steering pulley. The only thing the serp. belt goes around then is the supercharger, crank, and tensioner. This gives the belt more bite and would help eliminate any slippage (though I doubt there ever was any). We also bumped the timing up a few degrees.
On the second run the water pump belt came off and the blower belt broke. It wrapped itself tightly around the harmonic balancer and made scary noises. It sounded like the bottom end was knocking.
We quickly tossed the 'street' belt back on and got back in the staging lanes. When we got up to the front of the line, down came the rain.
Sitting in the staging lanes before the first run:
Launch on the first heads up run against Brad LePine:
Pulling up to stage for their second match up:
The following day we welded up the header primary tube with the hole in it and shimmed the engine about 1/4-inch (higher) for more clearence.
We also got the new water pump installed and changed the oil. My dad robbed the Sun 'Super Tach II' out of the 1964 Ford F-100 and hooked it up so he had some type of reference.
I also mounted/balanced the slicks on the rear rallye wheels for the car and that pretty much left it as completed as it was getting.
Unfortunately we didn't have time to finish up the slap stick so there would be no shifting into the gears. Simply put the car in 'D' and let the transmission pick when to shift.
The good news is that the trip went without anything grenading itself.
The car launched straight and drove smoothly down the track like a Sunday cruise.
The bad news is we only got 2 passes and then the event got rained out.
That's too bad because there was only about 50 cars down there and we could have easily got 10+ runs in that night. We got there at 5:00pm and a few people already had 5 runs in by 7:00pm when it was cancelled!
The first run seemed to go pretty good, however the serpentine belt was off the pullies by a tooth (or was it two?). We left the timing at 8 degrees initial so we could slowly crank it up on each pass.
It didn't run very fast, however your first outing with a street car on a new set-up surely isn't going to be impressive anyways. It ran a 14.0288 @ 98.11 mph. Not Earth shattering by any means, but considering the car was shifting ~4,600 RPMs, the carburetor is not dailed in (and wrong altogether), the stock transmission has a low stall speed and no shift kit, that's not so bad either.
My dad said it was extremely strong through the middle of the track, but felt like it nosed over on the big end?!?
Heh. We'll get it there.
I decided to put the shorter 'race' belt on (takes about 20 seconds to swap belts on this system we have) which just bypasses the power steering pulley. The only thing the serp. belt goes around then is the supercharger, crank, and tensioner. This gives the belt more bite and would help eliminate any slippage (though I doubt there ever was any). We also bumped the timing up a few degrees.
On the second run the water pump belt came off and the blower belt broke. It wrapped itself tightly around the harmonic balancer and made scary noises. It sounded like the bottom end was knocking.
We quickly tossed the 'street' belt back on and got back in the staging lanes. When we got up to the front of the line, down came the rain.
Sitting in the staging lanes before the first run:
Launch on the first heads up run against Brad LePine:
Pulling up to stage for their second match up: