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May 27, 2013 | 07:56 AM

#21

passmans2kny

Thread Starter

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Joined: Dec 2005

Posts: 5,651

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From: huntington long island

well with a built motor would this still not be a good idea to rev high, these crower rods are beefy

May 27, 2013 | 07:59 AM

#22

liquid_helix136

Joined: Dec 2007

Posts: 4,289

Likes: 12

Quote:

Originally Posted by passmans2kny

well with a built motor would this still not be a good idea to rev high, these crower rods are beefy

Someone else will have to chime in for that question. If it were my car, I would probably take the risk.. but I'm a gambling man.

May 27, 2013 | 10:44 AM

#23

Phill24

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Joined: Nov 2010

Posts: 1,169

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From: new york new york

Quote:

Originally Posted by liquid_helix136

The problem with revving an F22 out to 9k isn't in the head, but is the piston speeds. You are much more likely to break a rod at the same rpm in an f22 compared to the f20 due to the stroke length being higher in the f22.

U might be right but at the same time i have a ap1(f20) reving to 10k i havent done anything to the motor except springs retainers and headstuds...if matt has a built motor he should be fine