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H1E Motor runs hot

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RedGST98

10+ Year Contributor
262
2
Jun 22, 2011
Alamogordo, New Mexico
Have a quick question, hope you all can help out.. I have a 98 GST with a H1E T4 tubular manifold. I have had to instal a 1g radiator as the inlet is on the left. I am running 2 12" pullers (slims) on the radiator and 2 8" pushers on the AC condinser to help with air flow. The problem I am having is that it still runs pretty hot when driving around town and especially when at a stop.

The Idea I have is a mister of some sort that will spray water on the condinser and the radiator at the same time to help cool it off as we know water is a great transfer of heat..

Any suggestions as to helping with keeping the temp down inside the engine compartment, or is the mister the best option? What is your thoughts? Thank you in advance.
 
wrap the header as much as possble, ceramic coat if you dont want to wrap, hood vent, if you have a FMIC build an air dam to divert air from under the car to the radiator..less antifreeze more water and some water wetter(change back to 50/50 coolant for winter... just to name a few possibilties
 
maby you shoul check your thermostat first

that is not normal, cuz I run only one pusher oem a/c fan and the car never overheat even in city traffic. my tubular manifold is wrapped though
 
Have a quick question, hope you all can help out... The problem I am having is that it still runs pretty hot when driving around town and especially when at a stop.

How hot is "pretty hot"?? That condenser is probably making it a little harder to cool, but we need to know exactly how hot it is actually getting. Do you have an aftermarket temperature gauge? What temp rating is your thermostat?
 
I had the manifold wrapped at one point to try to help keep it cool// even had a turbo blanket on as well to try to keep the heat off the radiator... The dam to help devert the air up to the radiator is a good idea. hadnt thought of that.. I couldnt tell you what hot is atm.. the car is being rebuilt atm.. but when it was on the road.. it would peg darn near boil needle would peg if I didnt turn it off at times or at the least keep air flow.. The hood vent is also a good idea.. the front mount is a full mount.. the bumper I do have custom cuts to help with air flow through the a/c condinsor as well..

Thank you guys for all your support and suggestions.. I will re-wrap the manifold before the rebuild is done.. and also replace the thermistat anyways to be safe...

If anything once back on the road in a month or so ill be able to post a actual temp from ecm link..
 
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