[Supras] 57 trim CT@ boost capability

berniek at technicaldevelop.com berniek at technicaldevelop.com
Mon Dec 24 19:01:23 CST 2007


PS:  Forgot to state that I'm using synthetic oil, presently Mobil 1, 
but have heard good things about Red Line.


    BernieK (also have a turbo timer, but don't use it since city 
streets are the last part of my drive).


berniek at technicaldevelop.com wrote:
> 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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