Technical > Matt Shaff's Engine Shop

Compression Question

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ricci32:
Brian i come from a circle track background which had a cid limit and a flattop piston rule . flycut my heads to 47cc combustion chambers and had the block zero decked and we got monster compression . Thin composite head gaskets. What type pf heads are you using.

George:
We improved our 355 cid SBC last year from 11.6:1 to 13.4:1 . With a new custom cam , some intake port work and a complete race rebuild gained 40 hp.

We haven't seen a great deal of on track improvement yet. We ran a 5.10 et @ 136 Friday.

My advice is to build a 400+ cid engine. You don't have to get wild to make 600 hp on injected alky.

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