Miata Mailing List: July 1998, Message #212

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> After installing the FM II a couple weeks ago I found that the big
> intercooler blocked too much flow for the stock skinny '90 (5
> speed) radiator
> the hard way, driving home from work in 90 degree heat with the
> top down.  We
> aren't talking 4th gear at 13.5 psi either, just spirited driving on I-95,
> even constant, no boost driving.  I had to blast the heater to
> draw the heat
> off.  Nothing like 120 degrees in the car and a nice humid Baltimore day!

I wonder if your radiator isn't clogged somehow. I have the System IV turbo
on my 5 speed (stock radiator) and so far I've had zero overheating
problems. I'm only running 9 psi so far but the temperature needle didn't
even move during Sears Point (generous use of boost for 20 minutes at the
time!).

Regards
Soren

Team red '91 Miata with turbo and uninstalled nitrous.
Team blue '97 Jeep TJ waiting for a lift and locker.
http://www.geocities.com/MotorCity/Garage/2442