First time on a long trip yesterday. As i got up to freeway speeds(65+) I noticed my temp slowly increasing. To the point where I hit 260 and I pulled over and opened the hood. The temp quickly came back down, but once I got back on the freeway, it only took 5 minutes to climb back up to 250 from 210.

It got so hot, that my exhaust heated up my gas in my tank to the point of boiling. I think I almost died on a rolling bomb!

So I guess I'm not getting enough air through while at speed, but not sure what to do. No money for an aluminum radiator.

A while ago I thought about making the fake air scoops on top real, and now I think it will need to be done.

Let me add, that it was 106 where I was.

 

could be the lower radiator hose sucking flat and restricting coolant flow at highway rpm,but much more likely a missing airdam or a damaged airdam that is folding back at speed is the cause.A bad thermostat that does not open far enough is another possibility.

 

new t-stat. But doesn't mean it works.

As for this airdam. Have pics? I don't think I have one at all.

 

That is it then. It is a flexible piece of black plastic underneath the car that deflects air up into the radiator. Search air dam on this site you will find a pic.

 

So I looked up pics for it on google, as I didn't find any on this site. Yup. Not there. So that much be it. It looks so flimsy though. Should I make a stronger one with more of a dam than a flap?

 

http://www.bonanza.com/listings/82-9...MvNhoC2ETw_wcB


That's it. No need to make changes to it. 6 bolts hold it on

 

so with that can I run freeway 65+ in 100+ deg heat with no OD trans?

 

yup, without it....you blow up. Fans are only good till you reach around 35mph, then the're moot/useless. The deflector deflects air and causes a negative air flow and flows up to the radiator, then through it. Without it, air flows right under the car and out the rear, never reaching the radiator

 

Read up on air flow and underbody plastics here> Pay close attention to post #17
https://www.thirdgen.org/forums/body...ative+air+flow

 

found a car at the junk yard that has all of them. Now just need a chance to get to it.

 

Moved to new thread.