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I've removed the BS' on 2 Porsches, both of which saw high RPM track use and abuse. There were no ill effects. Probably minimal gains, but hard to say since several things were done at a time. Though, some of it must have worked, seeing as how one of them was an 8V N/A that would keep up with a Turbo in a straight line. lol. <img src="/forums/images/graemlins/smile.gif" alt="" /> <img src="/forums/images/graemlins/kewl.gif" alt="" />

All in all, 6 lbs is a substantial amount of rotating mass to some. For a daily driver, not so much. But for a track car, that's substantial, and people pay good money to remove that from other parts of the reciprocating assembly.


Should be noted that the BS move at twice the speed of the engine. So that is over 12lb of rotating mass, and that doesnt include the extra chain(i know not as fast but still adds up). So you need to also consider how much wear the bearings get being twice the speed of the engine... kinda scary to think. and yes I have had the bearings go bad and brake the chain... not good since its connected to the oil pump. If it was connected to a separate belt i would be alot less likely to remove them. but its not if you have failer for the bs it will likely ruin your engine.


I agree<img src="/forums/images/graemlins/kewl.gif" alt="" />

Last edited by 87monty; 04/23/13 09:34 PM.

2003 limited 20 year anniversary
96 SR
87 Montero SWB=Turbo diesel 4BT
T19 4sd with 205 transfer case