Quote:
Originally Posted by Mr.R
A race motor only lasts 2-3 races usually, before it's rebuilt. that's why it doesn't matter...
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Not all of them. Our sled pullet ran an SVO 460 block at 521ci. It made right at 1000 HP on a single Pro systems Dominator setting on a cast aluminum intake.
Naturally aspirated, no drugs, on VP racing fuel. Held it at 8,800 RPM with the MSD.
These were right around $30,000 to put together top to bottom. It got a warm up on the dyno, a few hard pulls to 9,000 to verify it was tuned and it went under the hood. Then it went to the track and had a chain thrown over the rear... And it was taken immediately to 8,800 RPM and it stayed there for about 40 seconds when it dug holes and stopped moving.
It would typically see this about 40 times in a summer, and each fall it came apart for inspection and bearings, then would do it again next year. The only real rebuild was if it blew itself apart, normally resulting in loss of heads, cam, rods, pistons, crank, block and more. Then you spend $20,000 to start over and reuse what you could from on top. Break it in on the dyno for an hour or so total and go get you some more!
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