Upgrading A heat exchanger

Q&A regarding engines, turbos, and intercoolers and power upgrades

Upgrading A heat exchanger

Postby White Rabbit » Wed Nov 08, 2006 7:28 pm

Ok i was asking bout a 3sgte into a st184 earlier and now im back for jus myself. Anyways here is the question. I know its common practice for st165 owners to just get a larger heat exchanger to avoid FMIC and holes in the hood to keep the sleeper look. I was jus wondering personally which would be a better upgrade on a st165 that would take the least hassle to install. A ford mustang cobra exchanger or an svt lightning heat exchanger.
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Postby Toxygene » Wed Nov 08, 2006 7:42 pm

What are the size differences on those exchangers?
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Postby White Rabbit » Wed Nov 08, 2006 9:12 pm

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Postby Toxygene » Wed Nov 08, 2006 9:32 pm

Well, I believe that having the largest heat exhanger is in your best interest. I had heard that the Water to Air intercooler on the ST165 heat soaks quickly. I would believe that this has a lot to do with the volume of water that the whole system uses. If you increase the volume of water by adding a larger heat exchanger then you effectively allow more time for the water to cool down before passing through the intercooler again.

So if you can shoehorn that Ford Lightning unit in there try going for that.
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Postby TomsGT4 » Wed Nov 08, 2006 10:59 pm

Or you could go completely balls-out & get the dual pass AFCO heat exchanger. With fans :D
Not sure about using this with a 165 IC, but man wouldn't this be nice to fit with a RC or 205 IC?

http://www.musclemustangfastfords.com/t ... uck_parts/
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Postby d1alltrac » Wed Nov 08, 2006 11:27 pm

LFP offers their Cobra/Lightning heat exchangers in either single pass or dual pass. Not sure how a dual pass LFP compares to the dual pass afco though.

Logically the lightning one would be better than the cobra since its bigger so it'll hold more water, but I guess it really just depends on what you can fit and have good airflow to. I'll probably go with the Cobra one, it's wider so it'll fill the fog-less opening of my bumper better, and the opening is less than 6" tall so I would think the extra height of the Lightning one probably wouldn't get as good airflow.

here are the dimensions LFP emailed me:

Cobra-Single and Dual pass
29 11/16" wide
6" tall
2 3/4" thick

Lightning-Single and Dual pass
27" wide
8 3/8" tall
2 3/4" thick
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Postby 88st165 » Thu Nov 09, 2006 12:09 am

this is the one i used.... http://cgi.ebay.com/ebaymotors/NEW-Liqu ... dZViewItem

i thought the brackets would be how they were pictured in the ad but they were not, which was no big deal to me. but you have to lose the fogs and brackets. the dim are 24x7x3 and its pretty good quality there are also pics on mr2oc b/c some of those guys are using it as well.

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Postby TomsGT4 » Thu Nov 09, 2006 1:17 am

I don't understand, how can they give a horsepower rating for that?

Fits nice by the way.
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Postby alltracman78 » Thu Nov 09, 2006 1:43 am

88st165 wrote:this is the one i used.... http://cgi.ebay.com/ebaymotors/NEW-Liqu ... dZViewItem



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Fluidyne?

I think it's the same one I have.
Works pretty good.
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Postby Toxygene » Thu Nov 09, 2006 2:09 am

TomsGT4 wrote:I don't understand, how can they give a horsepower rating for that?

Fits nice by the way.


I would imagine that they probably calculate the amount of heat that occurs at a certain amount of boost and then try to figure out the amount of latent heat transfer that can be attained using the cooler until the unit becomes heat soaked.

And they probably try to figure in the amount of airflow for a specific displacement and juggle all those numbers in a crazy formula to come out with a horsepower range. :shrug:
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Postby ChrisD » Thu Nov 09, 2006 12:27 pm

I have the LFP Mustang one in my car. Bigger would have been tougher to fit. This one wasn't 'easy' either.

If you lose the A/C condenser, I could see you fitting something rather massive in that spot.

But to position it right up front like shown above on the 165, you will not be able to fit that tall Lightning HE.

Go with the Mustang one, it's pretty good. Or if you can find a cheaper one like posted in another post above, that looks pretty good too.
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Postby Sleeka_89 » Thu Nov 09, 2006 1:31 pm

just curious, how much water does the stock system hold vs the amount of water in this upgraded unit? There would be a bit of weight?
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Postby krazybyzzle » Thu Nov 09, 2006 8:18 pm

88st165 wrote:this is the one i used.... http://cgi.ebay.com/ebaymotors/NEW-Liqu ... dZViewItem

i thought the brackets would be how they were pictured in the ad but they were not, which was no big deal to me. but you have to lose the fogs and brackets. the dim are 24x7x3 and its pretty good quality there are also pics on mr2oc b/c some of those guys are using it as well.


You wouldnt happen to have a tutorial on how to install it now would you? planning on getting the same one...
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Postby CMS-GT4 » Thu Nov 09, 2006 8:35 pm

alltracman78 wrote:
88st165 wrote:this is the one i used.... http://cgi.ebay.com/ebaymotors/NEW-Liqu ... dZViewItem



Image

Image



Fluidyne?

I think it's the same one I have.
Works pretty good.


I hav that as well and like it so far. I also am using a mustange cobra water pump. Its very quiet.
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Postby killer_siller » Thu Nov 09, 2006 8:35 pm

i've got a 185rc HE on my st165. the AC condenser had to go, and the bumper doesn't QUITE sit correctly, but i got to keep my fogs!
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