
<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>Love the add</div><div><br></div><div>"Buy wiht confidence"<br><br>Sent from my iPhone</div><div><br>On Jul 22, 2015, at 17:05, Brad Eells <<a href="mailto:tr4abrad@gmail.com">tr4abrad@gmail.com</a>> wrote:<br><br></div><blockquote type="cite"><div><div dir="ltr">Are these the Ebay rods that have been discussed?<div><br></div><div><a href="http://www.ebay.com/itm/Connecting-Rods-for-Triumph-TR3-TR4-Forged-Conrods-Con-Rod-158-75mm-ARP-Bolts-/131562025540?hash=item1ea1b53244&vxp=mtr">http://www.ebay.com/itm/Connecting-Rods-for-Triumph-TR3-TR4-Forged-Conrods-Con-Rod-158-75mm-ARP-Bolts-/131562025540?hash=item1ea1b53244&vxp=mtr</a><br></div><div><br></div><div>Any thoughts? The price is certainly attractive...</div><div><br></div><div><br></div><div>Brad</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Jul 21, 2015 at 12:24 PM, MadMarx <span dir="ltr"><<a href="mailto:tr4racing@googlemail.com" target="_blank">tr4racing@googlemail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div lang="DE" link="blue" vlink="purple"><div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:#1f497d">Hi Guys,<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:#1f497d">After my engine blow at the last race and a rod in two pieces I investigated about rod design.<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:#1f497d">In US forums I found an interesting opinion:<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:#1f497d">H-beam rods are for low rev high torque engine (turbo, compressor)<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:#1f497d">I-beam are for medium torque engines with high revs<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:#1f497d">As engineer I agree with this statement. On high revs the rod shaft gets bended back and forth by the inertia caused by the rotation.<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:#1f497d">I could imagine that the sharp sides of the H-beam rod will create a crack after a while because the stiffness for bending along the rotation axis smaller than with an I-beam rod.<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:#1f497d">That means to me that the fatigue resistance is smaller on an H-beam rod at high revs.<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:#1f497d">With high revs on a long stroke engine I mean 6000+.<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:#1f497d">The manufacturer of the broken H-beam rod was Scat.<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:#1f497d">I think next time I order an I-beam rod from Scat.<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:#1f497d">What do you think?<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:#1f497d">Cheers<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:#1f497d">Chris<u></u><u></u></span></p></div></div></div><br>_______________________________________________<br>

<a href="mailto:fot@autox.team.net">fot@autox.team.net</a><br>

<br>

<a href="http://www.fot-racing.com" rel="noreferrer" target="_blank">http://www.fot-racing.com</a><br>

<br>

Donate: <a href="http://www.team.net/donate.html" rel="noreferrer" target="_blank">http://www.team.net/donate.html</a><br>

Archive: <a href="http://www.team.net/archive" rel="noreferrer" target="_blank">http://www.team.net/archive</a><br>

Forums: <a href="http://www.team.net/forums" rel="noreferrer" target="_blank">http://www.team.net/forums</a><br>

Unsubscribe/Manage: <a href="http://autox.team.net/mailman/options/fot/tr4abrad@gmail.com" rel="noreferrer" target="_blank">http://autox.team.net/mailman/options/fot/tr4abrad@gmail.com</a><br>

<br>

<br>

<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><b>Brad Eells</b></div><div><b>Friends of Triumph</b></div><div><b><a href="http://www.fot-racing.com/" target="_blank">http://www.fot-racing.com/</a><br></b></div><div><b><br></b></div><div><img src="https://docs.google.com/uc?id=0B9vVTDWaFCqFYVNfS2ZBaHdmXzg&export=download" width="96" height="71"><br></div><div><br></div></div></div></div></div></div></div></div></div></div></div>

</div>

</div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span><a href="mailto:fot@autox.team.net">fot@autox.team.net</a></span><br><span></span><br><span><a href="http://www.fot-racing.com">http://www.fot-racing.com</a></span><br><span></span><br><span>Donate: <a href="http://www.team.net/donate.html">http://www.team.net/donate.html</a></span><br><span>Archive: <a href="http://www.team.net/archive">http://www.team.net/archive</a></span><br><span>Forums: <a href="http://www.team.net/forums">http://www.team.net/forums</a></span><br><span>Unsubscribe/Manage: <a href="http://autox.team.net/mailman/options/fot/hpspitfire@gmail.com">http://autox.team.net/mailman/options/fot/hpspitfire@gmail.com</a></span><br><span></span><br><span></span><br></div></blockquote></body></html>