[Supras] (no subject)

[berniek at technicaldevelop.com]

Wade:

Yes, I did read your last mail, and will strongly consider a bigger
turbo-back system, but NJ is a pain in the butt with exhaust emissions.  I
wonder if a large downpipe and large single cat would do the job.  Anyone
know?

Thanks for the info on the MSD retarder.  I'll look into it.  But from
what you say, it seems essentially unnecessary.  Does the ECU "learn" a
new retard curve?  Different gas qualities found around the world would
seem to indicate this.

What type of Piggyback is most popular for taking out top end richness in
the Lex-550 setup?  Any ideas for the most popular downpipe and big cat? 
I already have an 80 mm cat-back HKS systemI also have a 57 trim turbo.

Any and all help and thoughts would be appreciated.  Thanks.

     BernieK

Wade Tobin Wrote:
-------------------
Message: 7
Date: Tue, 11 Sep 2007 01:59:50 -0700 (PDT)
From: Wade Tobin <wwt3198 at yahoo.com>
Subject: Re: [Supras] Spark retard and top end fuel redux
To: supras at supras.com
Message-ID: <908299.23720.qm at web52502.mail.re2.yahoo.com>
Content-Type: text/plain; charset=iso-8859-1

That's some interesting reading but perhaps you're going into this a bit
deeper than
necessary.:)  There's dozens and dozens of 7m's running around w/ Lexus
AFMs, 550s,
piggybacks and no problems.  Been using a Lexus AFM/550s since 02 on the
same engine
which came from a junkyard (140k miles).  The car has made 420rwhp on the
dyno 50
passes on the track both 1/8 mile and 1/4 mile.  About 20 of those passes
were over
17psi.  Best time was a 12.4 @ 117.

  Don't know if you got my last email Bernie, but running the stock CT26
elbow, DP
and both cats is an area I'd far more concerned with than Lexus AFM tech. 
Surely,
a choked up exhaust will cause higher EGTs and detonation, Lexus AFM or not.
Also, a big intercooler is also a good idea.  The stock MK3 exhaust and
intercooler = garbage.

  Your absolutely correct about the ECU not retarding the timing w/ the
Lexus.  MSD
sells a boost timing retarder box for your needs.  I don't run one.

  -wt