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SVT Shelby GT500
Aftermarket Heat Exchanger
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<blockquote data-quote="sqidd" data-source="post: 16086021" data-attributes="member: 4774"><p><strong><span style="font-size: 18px"><span style="color: #ff0000">From an un-named web site:</span></span></strong></p><p><strong><span style="font-size: 18px"></span></strong></p><p><strong><span style="font-size: 18px">Heat Exchanger Size Chart/Information:</span></strong></p><p></p><p></p><p>We have been testing heat exchangers for 10+ years now. As far as we know we are the only ones that test heat exchangers by tracking water temp in/out. Which is the ONLY way to accurately testa a heat exchangers performance. There are too many very large variables in play to use intake air temperatures as a gauge of heat exchanger performance.</p><p></p><p></p><p>In one car alone, we had seven different heat exchanger configurations. Five in another. Three in two more cars. Some of them off the shelf units, some of them completely custom. We’ve tested up to 1500cu in of core volume.</p><p></p><p></p><p>After 10+ years of testing one thing rings true 99% of the time. The bigger the heat exchanger, the better it works. There is an argument that a bigger “face” will make up for lack of core volume a little though. If you have two 800cu in units your comparing but one has more “face”, go with that one.</p><p></p><p>There is a point where core thickness/density can hurt performance too. A thick/dense core may work better at 120mph. But, if you're not spending a lot of time at those sorts of speeds you're giving up performance at more realistic/every day speeds. If a heat exchanger is achieving it's volume through a thick core it may not perform as well as a thinner core with less volume. A good example of this would be the VMP vs the stock 13' GT500. The VMP will out-perform the 13' GT500 in most situations despite having less volume.</p><p></p><p></p><p>As far as “passes” goes we have also not seen any evidence to suggest that more passes equals better. And there are situations where more passes hurts cooling because they choke down system wide water flow/speed due to the core not being large enough to run that many passes. The results are all over the place. The short version is don’t bet the fam on how many passes a heat exchanger has.</p><p></p><p></p><p>We have yet to see any truth to a small XYZ whammie jammie heat exchanger with its NASA designed space age core with XXX better heat transfer out performing a bigger unit.</p><p></p><p></p><p><strong><span style="font-size: 18px">Measuring core sizing: </span></strong></p><p></p><p></p><p>This is the only way we have found to measure them consistently.</p><p></p><p></p><p>Core size, side to side (width), is measured not including tanks, just the core.</p><p></p><p></p><p>Core size, top to bottom (height) is measured from the outside (top side, bottom side) of the last “tubes” open to airflow.</p><p></p><p></p><p>Core thickness is the thickness of the core minus any headers, footers, etc.</p><p></p><p></p><p></p><p> </p><p></p><p><strong>-07-09 GT500 Stock Heat Exchanger</strong></p><p></p><p></p><p>Width: 23”</p><p></p><p>Height: 6”</p><p></p><p>Thickness : 1.25” (single 1.25” tube)</p><p></p><p></p><p>Frontal Area: 138 sq in</p><p></p><p>Core Volume: 172.5 cu in</p><p></p><p> </p><p></p><p><strong>-10-12’ GT500 Stock Heat Exchanger</strong></p><p></p><p></p><p>Width: 22.5”</p><p></p><p>Height: 5.875”</p><p></p><p>Thickness : 2” (single 2” tube)</p><p></p><p></p><p>Frontal Area: 132 sq in</p><p></p><p>Core Volume: 264 cu in</p><p></p><p> </p><p></p><p><strong>-Roush 3v blower kit Stock Heat Exchanger</strong></p><p></p><p></p><p>Width: 19.5”</p><p></p><p>Height: 15”</p><p></p><p>Thickness : .625”</p><p></p><p></p><p>Frontal Area: 292.5 sq in</p><p></p><p>Core Volume: 182.81 cu in</p><p></p><p> </p><p></p><p> </p><p></p><p><strong>-Afco Pro Series w/ 10” Fans (new design)</strong></p><p></p><p></p><p>Width: 22.5”</p><p></p><p>Height: 11.375”</p><p></p><p>Thickness : 1.25” (single 1.25” tube)</p><p></p><p></p><p>Frontal Area: 255.93 sq in</p><p></p><p>Core Volume: 319.92 cu in</p><p></p><p></p><p><strong>-Afco Pro Series (old design)</strong></p><p></p><p></p><p>Width: 22.5”</p><p></p><p>Height: 9”</p><p></p><p>Thickness : 2” (double 1” tubes)</p><p></p><p></p><p>Frontal Area: 202.50 sq in</p><p></p><p>Core Volume: 405 cu in</p><p></p><p></p><p><strong>-LFP</strong></p><p></p><p></p><p>Width: 21.75”</p><p></p><p>Height: 8.125”</p><p></p><p>Thickness : 2.375”</p><p></p><p></p><p>Frontal Area: 176.71 sq in</p><p></p><p>Core Volume: 420 cu in</p><p></p><p> </p><p></p><p><strong>-Saleen Extreme</strong></p><p></p><p></p><p>Width: 32”</p><p></p><p>Height: 7”</p><p></p><p>Thickness : 2.125”</p><p></p><p></p><p>Frontal Area: 224 sq in</p><p></p><p>Core Volume: 476 cu in</p><p></p><p> </p><p></p><p><strong>-VMP Triple </strong></p><p></p><p> </p><p></p><p>Width: 24”</p><p></p><p>Height: 12.25”</p><p></p><p>Thickness : 2.5”</p><p></p><p></p><p>Frontal Area: 294 sq in</p><p></p><p>Core Volume: 735 cu in</p><p></p><p> </p><p></p><p> </p><p></p><p><strong>-13’ GT500 Stock Heat Exchanger</strong></p><p></p><p></p><p>Width: 25”</p><p></p><p>Height: 10.875”</p><p></p><p>Thickness : 3.125”</p><p></p><p></p><p>Frontal Area: 271.875 sq in</p><p></p><p>Core Volume: 849.60 cu in</p><p></p><p></p><p> </p><p></p><p></p><p></p><p><strong><span style="font-size: 18px">Let the arguing begin!<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></span></strong></p><p><strong><span style="font-size: 18px"></span></strong></p><p><strong><span style="font-size: 18px"></span></strong></p><p><strong><span style="font-size: 18px"></span></strong></p><p><strong><span style="font-size: 18px"></span></strong></p><p><strong><span style="font-size: 18px"></span></strong></p><p><strong><span style="font-size: 18px"></span></strong></p><p><strong><span style="font-size: 18px">.</span></strong></p></blockquote><p></p>
[QUOTE="sqidd, post: 16086021, member: 4774"] [b][size=5][color=#ff0000]From an un-named web site:[/color] Heat Exchanger Size Chart/Information:[/size][/b] We have been testing heat exchangers for 10+ years now. As far as we know we are the only ones that test heat exchangers by tracking water temp in/out. Which is the ONLY way to accurately testa a heat exchangers performance. There are too many very large variables in play to use intake air temperatures as a gauge of heat exchanger performance. In one car alone, we had seven different heat exchanger configurations. Five in another. Three in two more cars. Some of them off the shelf units, some of them completely custom. We’ve tested up to 1500cu in of core volume. After 10+ years of testing one thing rings true 99% of the time. The bigger the heat exchanger, the better it works. There is an argument that a bigger “face” will make up for lack of core volume a little though. If you have two 800cu in units your comparing but one has more “face”, go with that one. There is a point where core thickness/density can hurt performance too. A thick/dense core may work better at 120mph. But, if you're not spending a lot of time at those sorts of speeds you're giving up performance at more realistic/every day speeds. If a heat exchanger is achieving it's volume through a thick core it may not perform as well as a thinner core with less volume. A good example of this would be the VMP vs the stock 13' GT500. The VMP will out-perform the 13' GT500 in most situations despite having less volume. As far as “passes” goes we have also not seen any evidence to suggest that more passes equals better. And there are situations where more passes hurts cooling because they choke down system wide water flow/speed due to the core not being large enough to run that many passes. The results are all over the place. The short version is don’t bet the fam on how many passes a heat exchanger has. We have yet to see any truth to a small XYZ whammie jammie heat exchanger with its NASA designed space age core with XXX better heat transfer out performing a bigger unit. [b][size=5]Measuring core sizing: [/size][/b] This is the only way we have found to measure them consistently. Core size, side to side (width), is measured not including tanks, just the core. Core size, top to bottom (height) is measured from the outside (top side, bottom side) of the last “tubes” open to airflow. Core thickness is the thickness of the core minus any headers, footers, etc. [b]-07-09 GT500 Stock Heat Exchanger[/b] Width: 23” Height: 6” Thickness : 1.25” (single 1.25” tube) Frontal Area: 138 sq in Core Volume: 172.5 cu in [b]-10-12’ GT500 Stock Heat Exchanger[/b] Width: 22.5” Height: 5.875” Thickness : 2” (single 2” tube) Frontal Area: 132 sq in Core Volume: 264 cu in [b]-Roush 3v blower kit Stock Heat Exchanger[/b] Width: 19.5” Height: 15” Thickness : .625” Frontal Area: 292.5 sq in Core Volume: 182.81 cu in [b]-Afco Pro Series w/ 10” Fans (new design)[/b] Width: 22.5” Height: 11.375” Thickness : 1.25” (single 1.25” tube) Frontal Area: 255.93 sq in Core Volume: 319.92 cu in [b]-Afco Pro Series (old design)[/b] Width: 22.5” Height: 9” Thickness : 2” (double 1” tubes) Frontal Area: 202.50 sq in Core Volume: 405 cu in [b]-LFP[/b] Width: 21.75” Height: 8.125” Thickness : 2.375” Frontal Area: 176.71 sq in Core Volume: 420 cu in [b]-Saleen Extreme[/b] Width: 32” Height: 7” Thickness : 2.125” Frontal Area: 224 sq in Core Volume: 476 cu in [b]-VMP Triple [/b] Width: 24” Height: 12.25” Thickness : 2.5” Frontal Area: 294 sq in Core Volume: 735 cu in [b]-13’ GT500 Stock Heat Exchanger[/b] Width: 25” Height: 10.875” Thickness : 3.125” Frontal Area: 271.875 sq in Core Volume: 849.60 cu in [b][size=5]Let the arguing begin!:) .[/size][/b] [/QUOTE]
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