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Originally Posted by Phazar454Mag
(Post 4791330)
Since it is a 2000 Donzi 28zx with twin 377 Scorpions, then I assume we are talking about the blue 377 Scorpion engines from Mercury Racing.
I have the factory service manual for that engine, and it says: Compression ratio: 9.0:1 Maximum rpm: 4800-5200 RPM Engine rev limiter: 5400 RPM Valve system: Valve lift intake 0.510 Valve lift exhaust 0.530 Camshaft: Duration at .050" cam lift: Intake 222 degrees and exhaust 230 degrees. |
Originally Posted by hypforlife32
(Post 4792950)
thank you! I ended up finding a core cam to be able to get one made to match the specs. I am getting two made so i have an extra if need be.
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Originally Posted by SB
(Post 4792954)
What did you find out about the General Motors Performance Parts cams I linked ?
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Positive the OE cam is 114 lsa ?
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Originally Posted by SB
(Post 4792964)
Positive the OE cam is 114 lsa ?
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Originally Posted by hypforlife32
(Post 4792969)
yes. Had the cam spun on a cam machine.
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I have twin scorpion 377’s and I want to supercharge them. Has anyone done this ?
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