[Supras] 57 trim CT@ boost capability

berniek at technicaldevelop.com berniek at technicaldevelop.com
Mon Dec 24 18:59:08 CST 2007


The fellow (Mario?) at Performance Techniques tells me that the 57 trim 
mod is good up to 17 PSI from a bearing wear standpoint.  I'm getting 
15-17 PSI at the intake plenum so I'm over that at the turbo.  A 
Treadstone Spearco knockoff is going in later this week, as are 2-1/4" 
hardpipes, to get the turbo discharge pressure down.  I do know that 
moving the waste gate actuator connection from the turbo discharge to 
the 3000 pipe caused very little boost increase under all but hot summer 
conditions (then it was 2.5 PSI difference with an all stock engine). 


Anyone have experience with life of a 57 trim CT26 at probably 18 PSI 
boost at the turbo?  Already thinking about an upgrade.  TO-4?  Needs to 
fit Lipp elbow and stock exhaust manifold.


    BernieK



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