2270 Engine Questions, Crank and Rods |
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2270 Engine Questions, Crank and Rods |
yeahmag |
Jun 23 2023, 12:34 PM
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#1
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Advanced Member Group: Members Posts: 2,423 Joined: 18-April 05 From: Pasadena, CA Member No.: 3,946 Region Association: Southern California |
I'm getting close to having all the parts for the 2270 build, but have a few questions:
This will be primarily an autocross engine with some weekend drives. I also drive to events. The engine needs to be able to spin to at least 7500RPM even if it's not making power up there. Here's the rest of the config (all of these parts are in hand):
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Dave_Darling |
Jun 25 2023, 04:45 AM
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#2
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914 Idiot Group: Members Posts: 14,991 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
[*]Crank size: Seem like a shame to leave it at a 2270 (78mm) when I could go up to a 2316 (80mm). I have read that getting clearance between one rod and one cam lobe is very challenging when you go over 78mm, even with the reduced base circle cam and the smaller big-ends on the rods. I think that's why people don't that often go up to 80mm stroke. --DD |
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