New engine project (pics)
Thread Starter
Drifting
Joined: Apr 2002
Posts: 1,716
Likes: 4
From: New Baden Illinois
The thing that concerns me is that I don't know how accurate Eagle's rating is. GM's rating was high, so the actual CR was closer to 9.75. If Eagle's rating is also high, then there are no worries. If Eagle's ratings are accurate, it will have a higher CR than from the factory.
Le Mans Master
Joined: Oct 2004
Posts: 5,269
Likes: 54
From: Orlando Florida
St. Jude Donor '05
Originally Posted by dgruenke
The thing that concerns me is that I don't know how accurate Eagle's rating is. GM's rating was high, so the actual CR was closer to 9.75. If Eagle's rating is also high, then there are no worries. If Eagle's ratings are accurate, it will have a higher CR than from the factory.
Not sure if this a good idea or a brainfart but anyways:
Bring the old piston to TDC and measure how far it's below the deck (or measure cc)
Do that again with the new pistons and compare to see how much it changed...
Would this work ??
Le Mans Master
Joined: Oct 2004
Posts: 5,269
Likes: 54
From: Orlando Florida
St. Jude Donor '05
Originally Posted by dgruenke
I could do that with the old one, but I can't do it with the new one because I don't want to buy or install the new piston if I'm not sure if it will work.
We have so many engine gurus here on this forum, most of them know more than I about these engines
