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Old 03-12-2020, 02:40 PM
Tim White Tim White is offline
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Default Cylinder sleeves

Any reason why it is limited to two cylinders?
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Old 03-12-2020, 02:48 PM
smithpr smithpr is offline
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Yes. There is a risk that a competitor would sleeve the entire engine to increase the output and that would increase the cost.
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Old 03-12-2020, 02:49 PM
jimwheeler jimwheeler is offline
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The original discussion, as my addled brain recalls, was that there was a performance advantage to some of the available sleeves. So, you could sleeve and gain HP. This was a loooong time ago and I can't remember what type of sleeve was the trick set up.
wheel
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Old 03-13-2020, 02:42 PM
Tim White Tim White is offline
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I see. I'm trying to salvage the block I destroyed a few years ago at High Plains after dropping a valve. Oddly enough, with a dual plane manifold anything in one cylinder gets distributed to three others. I guess I should be happy there are four good cylinders. So I guess that means less friction but I'll ask my engine builder about it and possibly write a letter if needed. Thanks.
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Old 03-14-2020, 01:15 PM
Ken Felice Ken Felice is offline
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How much to put in 4 sleeves at least half as much as new block. Must bore cylinders. ON eather side of sleeves because of distortion after putting in sleeves. Pistons must be bought anyway but if your

block is already. 030 you then go to .040 and that block is done.

Ken
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  #6  
Old 03-17-2020, 02:04 PM
jackmartin jackmartin is offline
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If you sleeve every cylinder you could offset the sleeve towards the intake valve, thereby un-shrouding the intake valve. That could help a 3.750 bore more that a 4" bore block. Whether or not that would give you a real advantage or not in AS is questionable. In drag racing it "might" be worth a couple hundredths. It will lighten your checkbook a bunch.
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