04-05-2004, 09:17 AM
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CC Member
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Join Date: Mar 2000
Location: Dayton,
OH
Cobra Make, Engine: RCR SLC, Graziano 6-spd, LS3
Posts: 914
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Not Ranked
Compression ratio too high! What to do?
Apparently when I bought my stroker kit, I got the wrong pistons. I was shooting for a 10:1 CR, but stupid me, I didn't check specs for the part numbers I got before I had the engine put together . It turns out the pistons I have are for 12:1 CR. I've only idled the engine so far, so I don't think any damage has been done, but now I've got to figure out how to fix it, as I need to be able to run on pump gas.
Are there any other options besides changing the pistons, or should I just bite the bullet and pull the engine and replace the pistons?
Engine is a 408W with AFR 185 heads. Cams specs Here.
Building this car has been one heck of a learning experience. Since I discovered this, I've read more on compression ratios, dynamic compression ratios, quench area....then I ever wanted to know.
Thanks,
Pete
Last edited by PSB; 04-05-2004 at 11:11 AM..
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