[Supras] losing performance

[Hacker J]

Agreed. At 2", it is really only a good replacement for the stock intercooler setup.

Jon

----- Original Message ----
From: "berniek at technicaldevelop.com" <berniek at technicaldevelop.com>
To: Hacker J <jonbhacker at yahoo.com>
Cc: supras at supras.com
Sent: Tuesday, December 4, 2007 6:19:21 PM
Subject: Re: losing performance


Jon:

    Thanks for the info.  Still need to get information on Spearco 
intercoolers and determine what the connection size is.  The stock  IC 
connection size is  2" OD, but the hose used will accept 2-1/4" OD 
tubing pretty easily.  If the pipe sold by speed-source is 2", it will 
minimize gains to be had with the Spearco intercooler.  Spearco will be
 
a spring project in all likelihood.   I believe they offer an 
installation kit that takes care of the high location of the discharge.
 


    But again, thanks for the thought.


       Bernie

Hacker J wrote:
> This may be common knowledge, but for people looking for a solution
 to the lower stock intercooler piping (particularly eliminating the cast
 aluminum bend) then the following part from Speed-Source is worth
 considering.
>
> http://www.speed-source.net/
>
> Jon
> 90T
>
> ----- Original Message ----
>
>
>
> Jeff, Jon:
>
>     Thanks for the replies. 
>
>
>     Jeff:  I've been looking at Spearco intercoolers as a next step 
> after working out the hardpipe hose retention method.  Found a way to
 
> solder copper wire rings on Mandrelbends tubing which I'll cover in a
 
> separate post.  Your were the one who suggested not going larger than
 
> 2-1/4" so that is the size I'm working with, the 45 degree elbow 
> underneath first.  Nonetheless, a mass flow meter measures mass flow,
 
> and all other factors being equal, A/F ratio should stay constant. 
>
>
> Jon:  A certain amount of sensitivity to coolant temperature makes 
> sense.  A few successive runs through second gear on up makes the 
> mixture lean out from about 9.5:1 to just short of 11:1 (average).  
> However, I would think that just the opposite should occur if
 Toyota's 
> thinking indicated that red hot exhaust valve heads and spark plug 
> insulators (well, maybe less hot for the insulators) would invite 
> pre-ignition, possibly showing up as increased coolant temperature. 
>
>
>     As always, comments would be appreciated.
>
>
>           Bernie
>
>
>
>
>
>
>
>
>      
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