Releiving the combustion chamber
#11
07-23-2010 | 11:14 AM
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From: Centennial State
If you use stock 883 heads with the conversion kit you will have to have them machined. Basically cut some material out of the inside of them to get the correct compression ratio and or cylinder head/valve to piston clearance. Whereas if you use 1200cc heads or the pistons they are advertising everything will bolt up.
#12
07-23-2010 | 11:35 AM
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From: Centennial State
With the altitude factor in mind, what would the the optimal compression ratio for me Sporty?
#13
07-23-2010 | 02:21 PM
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From: Centennial State
Came across a well written article on www.harley-riders-guide.com/harley-davidson-compression.html .
Thought I would give it a share. And thanks www.harley-riders-guide for such a wonderful, informative article.
Thought I would give it a share. And thanks www.harley-riders-guide for such a wonderful, informative article.
#14
07-23-2010 | 03:36 PM
Road Captain
Joined: Nov 2008
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From: Ohio
check out this site, it will explain a lot of what you are looking for: http://www.nrhsperformance.com Dan has done incredible things with stock 883 engines to get them to outperform 1200 models.
#15
07-23-2010 | 05:54 PM
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From: Centennial State
Thanks but doing a vanilla conversion, they are a little to "upscale" for me. Just want a solid understanding of what is going on, they do provide useful information geared for their product and services although if you want to go that direction.
Last edited by Rink-A-Dink; 07-23-2010 at 06:14 PM.
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