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Author Topic:   Converting from alcahol to gas???
Wheels47
Member
posted August 11, 2002 12:51 PM
If you are running wissota rules I wouldswitch to e85 it runns almost as cool as methanol i run 302 at 36 degrees timing and run 180-200 on the track 633-666 gears on 3/8 tun around 7200


Monster
Member
posted August 11, 2002 08:59 PM
Make sure you are turning the water pump the right way. Some of them are reverse rotation for serpentine drives.


Wheels47
Member
posted September 07, 2002 09:28 AM
Here's some more things to try: Your pulley reduction is 75%, I would think that is ok, but changing it is fairly easy and worth a try. You mentioned a plastic fan, I would chuck that and use a big old steel bladed version, like from a mid-sixties F-100(the more modern application has slipped my memory). Make sure the fan shroud only covers the front 1/3-1/2 of the fan blades. And all heater hose connections on water pump and intake must be individually plugged. If hoses are used to connect any of these points a situation can develop where very little water will flow thru block. And it could be blown head gaskets, backward gaskets, or a bad radiator. We had one radiator that looked and flushed perfectly, but just would not cool an engine. A wreck fixed that.


rico 08
Member
posted September 07, 2002 10:05 AM
i'd leave the shroud you may be idling too low idle it up ro about 900-1000 also beware alcohol heads usually have the valves tighter bacause they run cooler and on gas with higher temps the valves will bind when hot a friend of mine pulled his hair out over this.


brownstone
Member
posted September 07, 2002 11:01 AM
Wheels, You mentioned in another post that you were taking water from the back of the intake to the inlet. Are you talking about the thermostat housing? If so this is most likely your problem because this short circuits the water flow through the head.
I run a very similar Ford setup in a 2350lb UMP mod no shroud on gas with 12.7 comp. and seldom ever get over 200. Your pulley reduction should be ok, if anything I would be tempted to slow it down a little. I like mine 55 to 60%. Good luck! Check your private mail I sent you another response their.


Wheels47
Member
posted September 08, 2002 09:04 PM
As I stated this is a friends car and through a litlle tinkering and jetting the carb and tuning he has got it down to around 220 degrees. I would like to see it cooler and will keep trying to get him to do other changes and not be satisfied with the 220. he is starting to get the feel of his car and doing much better driving so maybe we will get a better view of what it's doing now. He's only run about five races so he's not really tested it to it's extreme!! thanks for the in put guys. Always good to get more ideas to check out. thanks much Wheels


Wheels47
Member
posted September 08, 2002 09:06 PM
Oh yes he went to a steel fan and seemed to help out also. Wheels


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