Fan shroud

[shadowj38]

Over4t did you run 180 with the gorsuch fan?

[billetbirdcage]

I just started using the ran fan and ran it on a crate a month ago with 2 blades since it was cool outside and ran cooler then an old GM 4 blade (now this fan is old and getting pretty worn and flattened out blades though) and ran on a 450" all aluminum engine last week and warmed engine to 200 and made laps and dropped and maintained at 140 degrees (with a 19" 3 blade). Several of my guys run the race fan and turn RPM of 9300 for qualifying and ran a 100 laps at 8800, so I wouldn't be scared of the good plastic/composite fans now that they been sorted out.

Side note: I also use the radiator drop, about 8 to 10" over concrete until you see no more debris come out. If that breaks/damages a radiator, then I don't want to use it brand. I still wash them but it's a fast way to remove the dirt in a hurry but I still do every time before cleaning them

[over4T]

Shadow, Yep 180 with the Gorsuch.

[shadowj38]

After inspecting my plugs, I think I’m going to try giving the car a little bit more fuel. I did end up replacing my shroud since mine has seen better days. I went with a dominator shroud part #DOM-545. It worked out perfectly in my rocket with an FSR radiator. No cutting or fitting necessary. Just drilled a few holes to bolt it in. We will see what happens as long as the rain holds off. Thanks for the replies everyone!

[Lizardracing]

Just food for thought, Oil temps can effect water temps. Oil, also a coolant, picks up quite a bit of heat that also gets dispersed through the cooling system. When oil temps get too high, that adds a significant load to the radiator. I don't want to say that your biggest issues, it's just something to think about when chasing heating problems and the cooling system has been checked well.
I've also seen the water pump impellers slip on the shafts at operating temps and tighten up again when cool as well as corroded away.

[shadowj38]

My oil temp is always around 230/235.

[TheJet-09]

And don't overlook the gauge itself. I had a problem where mine slowly kept creeping up the longer I ran, but the idiot light never came on. I finally got a new gauge and it took care of that.

[shadowj38]

I replaced the gauge at the beginning of the year.

[grt74]

Home made...

thats what we do

[JustAddDirt]

take out radiator and set it in a kiddie pool full of water for a day or two. You will be surprised of the dirt debris laying in the bottom of the pool.

[over4T]

...or try your unfriendly neighbor's hot tub, preferably when he's not home. Half an hour usually does the job.

[JustAddDirt]

hot water cleans best

...or try your unfriendly neighbor's hot tub, preferably when he's not home. Half an hour usually does the job.

excellent idea !!!!!!

[over4T]

Missed the opportunity to do some serious hot weather testing over the weekend with our class off all over our area. Had temps all weekend in the 107-110 range and wouldn't have gone if we could. Got Stockton next Saturday and, right now, they're forecasting 103 so we'll get ready and see if my old bod is up for that.
Northern CA's summers are brutal and might as well reopen the old Death Valley Speedway. It was 125 there.. that's Fahrenheit.