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| boost and compression https://slantsix.org/forum/viewtopic.php?t=28656 |
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| Author: | dank10fenny [ Mon Apr 28, 2008 10:40 pm ] |
| Post subject: | boost and compression |
just seein wut you turbo guys are runnin as far as compression. my buddy like 240 nissans(booo) and wont shut up about turbo bla bla so it got me thinkin |
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| Author: | Dart74 [ Mon Apr 28, 2008 11:38 pm ] |
| Post subject: | |
CR will be determined by cam, combustion chamber design/piston design, what kind of fuel and how much boost. There is a huge difference in modern engine designs and these old engines. We run 10.5:1 CR in our race honda with 2.5kg boostpressure, it put out 512rwhp with 2L (stock) bottom end. My slant will run at ~8:1 cr, but I'm sure the gurus at this great forum has more experience boosting a slant. Note that with a high duratiing cam with big overlap your actual CR will be lower than the static. Good luck, Rob |
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