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: 2,422 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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yeahmag |
Jun 26 2023, 08:49 PM
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#2
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Advanced Member Group: Members Posts: 2,422 Joined: 18-April 05 From: Pasadena, CA Member No.: 3,946 Region Association: Southern California |
I think there were a few questions for me. I'll try and answer them here.
1. I don't believe the 9520 from Type 4 Store is a reduced BC cam, so I need to work within those confines. That makes me think I want a max of a 78mm, but I'll ask EMW and see what they say. The cam card makes it seem like a WebCam 86B/86C variant. 2. EMW has a nice selection of forged cranks and rods in 2L journal sizes. 3. I need to actually measure the heads myself, but I believe the are at 50cc. |
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