Choking a TPI 383

[Bruce Plecan]

From: <Bja1078 at aol.com>
Subject: Re: Choking a TPI 383

Using anything (ie throttle stops) to limit the engine's intacke tract is
going to cause a depression, meaning it will see way less then 100 KPa, so
all you'll do is lose resolution where you want it most.
   Even if he has to cut back 5-6d on timing I wouldn't worry about that
cutting thru the valves like a cutting torch.  10-15 on a engine running
1400dF EGTs, yes.
Heck, I've done 10-12d retard at cruise for lousy gas and hours spent at
that, without a problem.
  Like everything your results will vary
Grumpy

| try increasing your fuel pressure... u don't wan't to move the timing back
a
| hole lot because of the exhaust valve timing, valve opens fual still
burning
| and then u burn valves like a cutting torch... and being a 10.3:1 motor
makes
| it worse! I've built many race specific engines, and if your worried, Id
| wait!! why brake stuff when a little patience is all u need! I beleive the
| person selling the tpi stuff still has the 35lbs/hr injectors, those are
just
| a little big but might be about right, just an idea. a throttle stop
however
| is not a bad idea, but u need the stuff to back the bottum end up more
than u
| need to run it.... just my opinion.
| -Brian