Mixing bearings for clearance

[Chris "drooze" Wertman]

Originally Posted by Jeff Lee

Getting another rod of better quality should not take long with NHRA. I've done it in less than two weeks. Eagle and Scat are not high on my list for quality parts. Try getting a Manley, Crower or Oliver. You don't have to run a specific bolt either. There are much better bolts out there than ARP 2000's which is what I assume you have. Go for a bolt with a much higher tinsel strength which requires greater torque to stretch the same amount.
I feel this is so important that missing some races is worth it. Blow up another engine and you'll want to have a bon-fire! Just get on the phone Monday morning and get it done.

Its being done of the 3 we are building, 2 will get the Scat Rods and Diamond pistons, I wont say theyre throwaway motors, but their "life expectancy" is 5-10 events each. If we get that were good, the other the 3rd thats getting different slugs and different rods, both are "in process" to be approved and close, its an h beam rod better bolts

Im going to try to find a better bolt for these tommorow, you are right they are ARP 2000's I was going to check A1 and a couple others. These torque spec is 63 lbs ?

Pistons, well Im waiting on someone who frequents here to get on of the spec DP pistons to someone for the 5.7 the 6.1 is already in process ..... ahem (they were going to this week) So better options, I am half tempted to run a stock rod , that is legal as well, cant be any worse.....

I will say the first motor failed from a welded bearing and took a fastner loss, the rod took a good hit at 7k and well, it didnt break, it took a 30degree bend but held, THAT from a Scat rod I was actually suprised at, this one Ill have to look closer , if its a fastner issue, thats a lot easier to resolve FAST (Im not scat fan but that comes from years of VW friends and really nothing more than a bad association in my mind) I will say the Scat rod machine work and consistency is very spot on, suprisingly so. Others have found the same thing........so maybe just some good bolts, or better bolts I should say.

Thanks, a good point from both.....