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SCCA Engine....

Old 09-04-06, 09:54 PM
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SCCA Engine....

Hey guys- I am looking in the GCR as to what we can and cant do to these engines... however I am a little unclear as to what exactly are the limits to what we can do...

Can someone give me some insite into how much porting can or cannot be done? 1 inch port-match...what about inside the engine?

Am I reading the GCR correctly that no porting at all is allowed?
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Old 09-04-06, 10:16 PM
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what class do you want to run in? that will make all the difference. In sm2 just about anything goes.
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Old 09-04-06, 10:18 PM
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It- 7 / spec-7
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Old 09-04-06, 11:11 PM
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The IT7 rules follow the Improved Touring rules. No port match. Read the section that applies to rotary engines.

The Spec 7 rules are specific and more restrictive. Go to your region / division's site for the rules they use.
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Old 09-05-06, 09:35 AM
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That is correct. If you read section D.2 (Rotary engines) you will note that they exclude Rule D.1.L, which allows port matching in piston engine.

So no port matching. And certainly no porting of the irons.

Production classes allow for porting, IIRC, but that's a whole 'nother level of bank account. ;-)

-b

Last edited by wrankin; 09-05-06 at 09:47 AM.
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