MFI thermostat connection
 

What do people connect the hot air side of the MFI pump thermostat hot air
input to if you have a straight racing exhaust without heat exchangers?

thanks
-phil

You need to go to a manual screw.
The stock heat exchangers have a tube which feeds hot air to the tube. You could also fabricate a small heat exchanger around the collector.

Years ago I read that the factory would use a small bulb under the thermostat in an enclosure on header equipped race cars. I believe it was Roland Kunz who relayed this info. I don't believe he has posted in years.

And of course Supertec sells the cable actuated enrichment lever set up.

you remove the thermostat and build and aluminum plate to cover the area. Duplicate the base of the thermostat housing.

Drill a hole in it for a 6mm screw, install a steel helicoil. INsert a 6mm bolt and use this to adjust overall mixture of the MFI.

I did this years ago on my 2.7 and it is a great mod.

Just remember that you have to push the lever in with the screw or the MFI will run way rich like a cold day!!!

Thanks
 

I will give supertec a call -- I have the handbrake choke lever unused ...