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Go Back   Hummer Forums by Elcova > Hummer H2 Discussion Forums > Technical Discussion and Customizing your H2

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  #1  
Old 06-25-2007, 02:39 AM
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Default Re: Cooling issues...

I take it that thermostat didn't work right?
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Old 06-25-2007, 03:16 AM
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Default Re: Cooling issues...

When I did my small block conversion in my Jeep, initially I had no shroud and engine temp would peak at about 250. Once I installed the shroud it only peaked at 215. That is using A fan clutch, no electric fans.
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Old 06-25-2007, 08:35 PM
H2 Bill H2 Bill is offline
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Default Re: Cooling issues...

Yes, you need the shroud. It will make a huge difference.
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Old 06-25-2007, 10:04 PM
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Default Re: Cooling issues...

I never had a problem with that, but Fubar did. He went through all kinds of crap.

I don't know if it was ever corrected.

Get the one with the shrouds and be sure to install a cutoff switch in the cabin. This way you can turn it off when you charge through a deep water hole. I shredded a pair of fans deep on the trails doing that. We went back to the original fan clutch after that.

Good luck.
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Old 06-26-2007, 03:24 AM
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Default Re: Cooling issues...

Mark,
I just bought that other set of dual fans that you didn't like the shroud on. I got them for a REALLY good price of course. Why don't you try them out when I get them and see if they help. Ifo so you take them, if not I'll put them on the back hatch of mine like a jet car.

Tim
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Old 06-26-2007, 04:27 AM
OrangeCrush OrangeCrush is offline
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Default Re: Cooling issues...

Tim,

I'm sitting on my couch right now double checking dimensions. I just went out to the truck to measure the the size of of the radiator.

I'm getting ready to order this.

http://store.summitracing.com/partdetail.asp?autofilter=1&part=FLX%2D284&N=700+4 00226+115&autoview=sku

Didn't we measure the width to be 32"? If so, this will make a tight fit.

I'm going to have to spend almost 600 bucks on these fans and then I want to get a new transmission cooler with a fan and mount it under the truck.


The ones you just bought I don't seeing as being very helpful. They're more cfm but still without a shroud and I honestly think that's my biggest problem.

Mark
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Old 06-26-2007, 05:14 AM
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Default Re: Cooling issues...

Mark,
I think it was just over 31. Well you are more than welcome to try the new ones out first if you don't buy others before hand. **** for the price they cost you could have a custom shroud made and still probably half the others price. Just a thought.

Tim
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