<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Wouldn’t using a triple core radiator result in a greater temperature differential between input and output? Seems like your radiator temperature differential is more than adequate. The more I think about it, the more I believe that flow through the system is too slow, either due to a restriction or the pump design.<div class=""><br class=""><div class="">
<div class="">Duncan Charlton</div><div class="">Elgin, Texas USA</div><div class=""><br class=""></div><br class="Apple-interchange-newline">
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<br class=""><div><blockquote type="cite" class=""><div class="">On Jul 9, 2016, at 2:28 PM, Christian Marx <<a href="mailto:tr4racing@googlemail.com" class="">tr4racing@googlemail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="WordSection1" style="page: WordSection1; font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;"><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span lang="EN-US" class="">It is a single pass single core radiator with 2” tube<span class="Apple-converted-space"> </span></span><span lang="EN-US" class=""><o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Gesendet von meinem Windows 10 Phone</div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><o:p class=""> </o:p></span></div><div style="border-style: solid none none; border-top-color: rgb(225, 225, 225); border-top-width: 1pt; padding: 3pt 0cm 0cm;" class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; border: none; padding: 0cm;" class=""><b class="">Von:<span class="Apple-converted-space"> </span></b><a href="mailto:gblake58tr3@icloud.com" style="color: rgb(149, 79, 114); text-decoration: underline;" class="">Greg Blake</a><br class=""><b class="">Gesendet:<span class="Apple-converted-space"> </span></b>Samstag, 9. Juli 2016 21:08<br class=""><b class="">An:<span class="Apple-converted-space"> </span></b><a href="mailto:tr4racing@googlemail.com" style="color: rgb(149, 79, 114); text-decoration: underline;" class="">MadMarx</a><br class=""><b class="">Cc:<span class="Apple-converted-space"> </span></b><a href="mailto:fot@autox.team.net" style="color: rgb(149, 79, 114); text-decoration: underline;" class="">FOT List</a><br class=""><b class="">Betreff:<span class="Apple-converted-space"> </span></b>Re: AW: [Fot] TR8 Water temperature</div></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><o:p class=""> </o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 12pt; font-family: 'Times New Roman', serif;" class="">Maybe you need a multi pass radiator. Do you know what is in the car now; single, double; triple pass?<br class=""><br class="">Sent from my iPhone</span><span style="font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><o:p class=""></o:p></span></div><div class=""><p class="MsoNormal" style="margin: 0cm 0cm 12pt; font-size: 11pt; font-family: Calibri, sans-serif;"><span style="font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><br class="">On Jul 9, 2016, at 10:07 AM, MadMarx <<a href="mailto:tr4racing@googlemail.com" style="color: rgb(149, 79, 114); text-decoration: underline;" class="">tr4racing@googlemail.com</a>> wrote:<o:p class=""></o:p></span></p></div><blockquote style="margin-top: 5pt; margin-bottom: 5pt;" class=""><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span lang="EN-US" class="">The cap is a 23 psi cap.</span><span style="font-family: 'Times New Roman', serif;" class=""><o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span lang="EN-US" class="">I have an expansion tank which is plumbed at the sucktion side of the lower pump hose and has a 2<sup class="">nd</sup><span class="Apple-converted-space"> </span>connection at the top of the radiator to remove air from the system.</span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span lang="EN-US" class="">I don’t understand the air flow question. The car has an inlet on front, and an airbox around the radiator to force the air through.</span><o:p class=""></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span lang="EN-US" class=""> </span><o:p class=""></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><a name="_MailEndCompose" class=""><span lang="EN-US" class=""> </span></a></div><span class=""></span><div class=""><div style="border-style: solid none none; border-top-color: rgb(225, 225, 225); border-top-width: 1pt; padding: 3pt 0cm 0cm;" class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><b class="">Von:</b><span class="Apple-converted-space"> </span>Greg Blake [<a href="mailto:gblake58tr3@icloud.com" style="color: rgb(149, 79, 114); text-decoration: underline;" class="">mailto:gblake58tr3@icloud.com</a>]<span class="Apple-converted-space"> </span><br class=""><b class="">Gesendet:</b><span class="Apple-converted-space"> </span>Samstag, 9. Juli 2016 15:49<br class=""><b class="">An:</b><span class="Apple-converted-space"> </span>MadMarx <<a href="mailto:tr4racing@googlemail.com" style="color: rgb(149, 79, 114); text-decoration: underline;" class="">tr4racing@googlemail.com</a>><br class=""><b class="">Betreff:</b><span class="Apple-converted-space"> </span>Re: [Fot] TR8 Water temperature<o:p class=""></o:p></div></div></div><p class="MsoNormal" style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;"> </p><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">questions. </div></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">What pressure are you running?</div></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Do you have a pressurized expansion tank plumed into the system that takes water from the back of one of the heads then recirculates to the pump?</div></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">What kind of air flow are you getting through the radiator?<br class=""><br class="">Sent from my iPhone</div></div><div class=""><p class="MsoNormal" style="margin: 0cm 0cm 12pt; font-size: 11pt; font-family: Calibri, sans-serif;"><br class="">On Jul 7, 2016, at 12:20 PM, MadMarx <<a href="mailto:tr4racing@googlemail.com" style="color: rgb(149, 79, 114); text-decoration: underline;" class="">tr4racing@googlemail.com</a>> wrote:</p></div><blockquote style="margin-top: 5pt; margin-bottom: 5pt;" class=""><div class=""><div class=""><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span lang="EN-US" style="font-size: 10pt; font-family: Verdana, sans-serif; color: rgb(31, 73, 125);" class="">Hi guys,</span></div><p class="MsoNormal" style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;"><span lang="EN-US" style="font-size: 10pt; font-family: Verdana, sans-serif; color: rgb(31, 73, 125);" class=""> </span></p><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span lang="EN-US" style="font-size: 10pt; font-family: Verdana, sans-serif; color: rgb(31, 73, 125);" class="">My TR8 is running way too hot about 212F at full speed and at idle the temps are getting that high also. I have no idea to get them down.<br class="">Radiator core is 68x48cm x 5 cm. I suppose that should be enough. I've experiment with different restrictor plates with no change. Changing pump speed didn't help either. The difference between radiator in and outlet is 10°C (50F). Not enough I would say. Maybe making the pump more slower? It was running on a ratio of 0.8 slower than crank, currently 1:1 speed.<span class="Apple-converted-space"> </span></span><span style="font-size: 10pt; font-family: Verdana, sans-serif; color: rgb(31, 73, 125);" class="">Any ideas? 10 Liters are circulating.</span></div><p class="MsoNormal" style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;"><span style="font-size: 10pt; font-family: Verdana, sans-serif; color: rgb(31, 73, 125);" class=""> </span></p><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 10pt; font-family: Verdana, sans-serif; color: rgb(31, 73, 125);" class="">Cheers</span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 10pt; font-family: Verdana, sans-serif; color: rgb(31, 73, 125);" class="">Chris</span></div></div></div></div></blockquote></div></blockquote><p class="MsoNormal" style="margin: 0cm 72pt 12pt; 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