383 hsr timming info
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Joined: Jul 2006
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From: canada,quebec,st-jerome
Car: camaro iroc-z 89
Engine: 383 HSR SC MegaSquirt
Transmission: tko 600
Axle/Gears: 9 Inch 3.75
383 hsr timming info
hi guys ! just want to know what should be the best timming for a 383 hsr , a got alluminium cylinder heads and xfi280 cam .600 lift total 10.7 CR . cylinder head are corvette angle plug d-port fully ported . Some advice ? i just got a megasquirt ecm the max timming right now it about 36deg no knock thank you !
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From: Viersen, Germany
Car: Trans AM GTA 1989
Engine: 383 HSR AFR195 JRC Cam280/286
Transmission: T56 Conversion
Axle/Gears: 3.27 9bolt
Re: 383 hsr timming info
My 383 has 36° total timing @ wot aswell, but I have other heads.
The stock Corvette spark advance tables have much more advance, especially in the midrange - Up to 47degs. But I don't think thats safe to try.
The stock Corvette spark advance tables have much more advance, especially in the midrange - Up to 47degs. But I don't think thats safe to try.
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UltRoadWarrior9
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