I just realized I haven't made any updates for a while. I've been to the track twice this year. The first time Andy and I went the track was a zoo and being a street car night the track quickly disappeared. Plus quite a few oil downs and breakages on the track I was limited to 2 runs. Best one was a 11.04/125.42 with a 1.6389 60ft with a slight spin. This day I had the Prosystems carb on.
Last Friday went to TMP..track prep held for a few runs..but with a 11.1 and a 11.01 with 60's in the 1.60 to 1.62 range I was a little disappointed. This time I had the 950HP Holley back on.
So if anyone who has followed this thread knows ,I've been fighting a 60 foot issue for a while. Its a combination of limited track times and also I believe blaming the wrong part. Looking at all my timeslips I haven't ran an under 1.6 60 foot in three years. Last time was before I swapped convertors and then swapped quickly back to the Continental convertor becuz of the high slippage in drive with the UCC .
Friday night I realized its most likely something up with the transmission causing the slow 60 foots..first and reverse do feel a little draggy. I'm thinking the transmission was hurt 2 years ago with the higher stall of the UCC convertor. This week I'm in the process of swapping in a back up transmission to test my theory.
So to make a long story short..the best 60 foot so far with 3.73 gears with a 2.75 low gear set has been 1.60 vs a 1.54 with 3.08 gears with a 2.75 low gear set. This is the issue. Last year the car would 60 foot in the 1.61 to 1.64 range with the 308's.
Hopefully Sunday I can make it to a track day to test. I still fully expect to see 10.5 out of this combo with 60 foots in the 1.50 range or slightly lower eventually. The replacement transmission has the stock first gear set so if it 60's well it will confirm damage to the transmission.
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466 Mike Voycey shortblock, 310cfm SD KRE heads, SD "OF 2.0 cam", torker 2
373 gears 3200 Continental Convertor
best et 10.679/127.5/1.533 60ft
308 gears best et 10.76/125.64/1.5471
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