2270 build, 2270 compression question |
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2270 build, 2270 compression question |
Alapone |
Jul 16 2018, 07:26 PM
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#1
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Member Group: Members Posts: 105 Joined: 4-April 13 From: Nj Member No.: 15,734 Region Association: None |
Hey guys,
I am having a 2270 built, 78mmx96mm. We are using the 163/86b webcam and 2.0l heads. Dellorto 45s and msds headers. I am trying to decide on the right compression. The build is aimed at aggresive street use. I want to have as much power as possible and not have to run an external oil cooler or have any problems with detonation on 93/4 octane gas. I have heard anything from 8.5:1 to 9.5:1. Please let me know your thoughts. Thanks, Andrew |
McMark |
Jul 17 2018, 08:49 AM
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#2
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
You got it. I'm speaking under the assumption that Regular = 87, Midgrade = 89, and Premium = 91. These are the most commonly available octane ratings. While 93+ is available a lot of places, it's worth considering that if you take a road trip, the higher octane fuels may not be available. An engine that runs on race gas can be a ton of fun, but you're restricted to staying within range of your fuel source.
Like everything, it's about knowing what you want from your car/engine. The answer is different for everyone, it's good to talk to other people and see what they're doing, but at the end of the day your car should fit YOU. |
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