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Forum namePerformance/Engine
Topic subject55mm or 57mm?
Topic URLhttps://forums.2gnt.com/dcboard.php?az=show_topic&forum=i5&topic_id=42887
42887, 55mm or 57mm?
Posted by 1FastEclipse, Jan-27-03 08:09 AM
I am getting my throttle body boared out by ARD and was wondering if 57mm is to big for a non-turbo?
42888, RE: 55mm or 57mm?
Posted by a_miller_76, Jan-27-03 08:45 AM

A lot of guys go with a 60MM throttle body but it's a modified Jeep tb...so no, 57 isn't too big.
42891, RE: 55mm or 57mm?
Posted by Mystic511, Jan-27-03 09:17 AM
55mm is suppose to be the perfect cfm for non-turbo applications.. which is why AF/X bores to 55mm.. Anything bigger will affect low end a little. The gains in top end will make up for it, but it shouldn't be enough to hurt performance overall.

I just sent out my tb and mani to ARD too. :thumbsup
42963, RE: 55mm or 57mm?
Posted by Danny95ESI, Jan-28-03 05:18 AM
I have an ARD 57MM....didn't feel a loss at low end. Not sure if the extra 2 MM made a difference but it was a good mod. She's more responsive and the top end kicks ass.

and the ARD guys are cool.