455 has a new best time at track
#1
455 has a new best time at track
I don't know why my 455 runs as well as it does but I aint complaining. It is a 455 .030 over with about 9.5-1 compression, E heads small valves, factory manifolds, W30 intake manifold, Summit ordered exhaust cutouts installed and opened, Quadrajet 4bbl, 3.42 gears, 5 speed Doug nash transmission and a clutch that was marginal. It managed to run a 13.11@103MPH in a 71 442. My 60 foot time was 1.9 and I do believe it could run a 12.95 on a perfect run.
We had planned on running our 65 Biscayne but I lost another cam lobe on the 454 so we installed a 5 speed with a 3.27 first gear because the wide ratio Muncie was too hard to launch the Olds with 3.42 gears.
It was a great day
We had planned on running our 65 Biscayne but I lost another cam lobe on the 454 so we installed a 5 speed with a 3.27 first gear because the wide ratio Muncie was too hard to launch the Olds with 3.42 gears.
It was a great day
#4
I don't know why my 455 runs as well as it does but I aint complaining. It is a 455 .030 over with about 9.5-1 compression, E heads small valves, factory manifolds, W30 intake manifold, Summit ordered exhaust cutouts installed and opened, Quadrajet 4bbl, 3.42 gears, 5 speed Doug nash transmission and a clutch that was marginal. It managed to run a 13.11@103MPH in a 71 442. My 60 foot time was 1.9 and I do believe it could run a 12.95 on a perfect run.
We had planned on running our 65 Biscayne but I lost another cam lobe on the 454 so we installed a 5 speed with a 3.27 first gear because the wide ratio Muncie was too hard to launch the Olds with 3.42 gears.
It was a great day
We had planned on running our 65 Biscayne but I lost another cam lobe on the 454 so we installed a 5 speed with a 3.27 first gear because the wide ratio Muncie was too hard to launch the Olds with 3.42 gears.
It was a great day
What size pipes ..?
#6
Mugzilla, I ran it closed with my Old Muncie 4 speed and it ran a 13.4 with @103mph. The pipe size is 2.25 with dyno max super turbos. It doesn't respond a great deal to having the exhaust open. I ran the same mph and a little faster probably due to the transmission change. I've had this happen before with another Olds years ago.
I think a mid 12 is out of reach, I'd settle for a 12.99.
Dave
I think a mid 12 is out of reach, I'd settle for a 12.99.
Dave
#7
Mugzilla, I ran it closed with my Old Muncie 4 speed and it ran a 13.4 with @103mph. The pipe size is 2.25 with dyno max super turbos. It doesn't respond a great deal to having the exhaust open. I ran the same miles per hour and a little faster probably due to the transmission change. I've had this happen before with another Olds years ago.
I think a mid 12 is out of reach, I'd settle for a 12.99.
Dave
I think a mid 12 is out of reach, I'd settle for a 12.99.
Dave
#9
I got a new best of 13.11@103.5 There's still more in it.
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