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Newbie911 Newbie911 is offline
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Join Date: Dec 2019
Posts: 62
Whats the best compression ratio for a 3.2 short stroke with a Eaton M90 Kompressor

Hi again, it's Newbie 911.

I'm figuring this out little by little. So I'm going to keep my original engine. I'm turning my 3.0 into a 3.2 short stroke. I purchased a TPC supercharger with a water-to-air intercooler. I'm switching the ignition to coil on plug MoTec EFI. I'm getting Extreme Heads to help deal with the heat build-up at low rpm with the supercharger. They say those heads are the best at handling heat issues. The heads have Aasco springs with titanium retainers.

The TPC supercharger is a bolt-on for the 964 or 993 engine. The stock compression ratio on a 964/993 from what I hear is 10:4:1. Should I keep the same ratio or decrease to a lower ratio? I've heard it both ways and wanted to hopefully get a consensus.

Even if I'm willing to pay it's hard to get the right info and I get limited replies from people I've contacted. I guess I'm looking for someone to help me design my engine around this supercharger.

I'm adding a photo of my dogs and me. lol

Thank you very much for any help with this.

Chris


Last edited by Newbie911; 05-16-2023 at 10:31 AM..
Old 05-16-2023, 08:54 AM
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