Pulley sizes

[rblong]

I pulled the thermostat out first so that it would not interfere with my readings and was running 195ish at about 80 outside temp cruising. 200 idling at stop light with the fan running long durations After the shroud I am running 160-170ish cruising (of course with no fan on) and 190ish idling at light with fan cycling and running less than a minute.

I am not sure it will be all I have to do when we hit 105, but it is certainly much better. As I mentioned I am going to go ahead and fab the fan shroud since it will improve my coverage for the whole radiator. Then I can always go to a higher CFM fan if needed and I will not have wasted money or time on what I have already done.

I made the shroud about an inch wider than the fins and attached the shroud to the radiator at the top. There are gaps at the side of about 1/2 inch (want less). The new shroud mates up to the old lower shroud and I used a few screws to mate them together. Of course then you have to cut a couple of slots for your hinges to go through when you close your hood. I am not completely happy with the lower or new upper. The lower was not built as well as I would have done it and I overcut a couple places on the new upper (it is hard to get a real good fit with the posterboard as compared to fitting the aluminum). As soon as I get it all sorted and am comfortable I have solved the problem, I am going to build a whole new upper and lower. I had to buy a 4 x 10 foot sheet of aluminum so I have plenty to work with. It is cheap anyway and I liked working with it. Once all complete thinking about using my grinder with a wire wheel and doing a brushed circle pattern kind of thing.

Keep everyone posted.

Bruce