Thread: Core Shift ???
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Old 10-08-2002, 09:41 PM
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Richard Hudgins Richard Hudgins is offline
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Join Date: Jun 1999
Location: Fallbrook, CA USA, CA
Cobra Make, Engine: Porsche 928 S4
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Hi Folks,

On sleeved blocks.

We used to sleeve all of the 109E ford blocks. (Cosworth BDD) These were offset bored as well. We picked up 12% torque with offsetting the bores.

All of the F5000 Chevy blocks were sleeved. Traco were the first to do this due to failures with un-sleeved units.

There is nothing wrong with a sleeved block.

Matter of fact, all current F-1 engines are sleeved blocks. (Note: they are sleeved in some very trick ways. read Racecar engineering mag for details.)
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Richard Hudgins
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