X-Mozilla-Keys:                                                                                 
Jeff Spitzer wrote:

At 04:15 PM 8/3/99 -0700, you wrote:

Turrbie@aol.com wrote:

In a message dated 8/2/99 10:07:05 PM Eastern Daylight Time,
rotaryeng@earthlink.net writes:

 BTW while I have you on the line Bruce what is the best engine to get
 if I use a TO4 turbo charger? I may try to buy a late used one when
 I go to Japan in November for the Tokyo Motor show.

 Paul Lamar

At the risk of sounding disconnected from the turbo crowd, I'm not sure

about

the application of a TO4. Isn't that an after-market Garret or Air Research
unit. As for engines to turbocharge, I recommend the  engine
(Twin Turbo). It's still in production for the Japanese and Australian
markets. Since I'm assuming that your purpose in turbocharging the

engine is

for sea level power at altitude, the REW has the highest compresion

ratio 9.0

to 1, an all aluminum water pump, crank triggered ignition pickups and
beefier thrust bearings, not to mention motor mount bosses on the rear
housing. The automatic trans version is lighter by about 2 pounds.
Bruce Turrentine

Thanks Bruce. That is what I expected as Mazda did some beef up on
the late end housings as I recall. The Garret or Air Research TO-4 is
the one Abel Ibarra used to get 730 HP out of a 13B for drag racing.

I will also be needing about 230 HP for takeoff at sea level.

What is the going price in the US for a 93-95 13B REW?

I chose my 87-88 engine for two reasons.  First was price.  They are much
cheaper than the new ones.  Second was *low* compression.  I'm planning to
run pump gas and no active knock sensor.  The higher compression engines
make a little more power and better BSFC at the expense of less detonation
margin.  I wouldn't feel as comfortable with a high compression engine that
is designed to run with knock feedback if I didn't have the knock sensors
in the loop.  

BTW, I can make all the power I need with a low compression
engine I am planning to intercool anyway and if I have to make higher MAP
(due to lower compression) I am willing to reject a little more heat from
the intercooler in order to totally avoid knock worries.  The heat due to
compression is similar but in the case of more turbo compression you still
have a chance to remove the heat.

Jeff Spitzer

Any guesses on the size of the intercooler required  Jeff?

Paul

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