<div dir="ltr"><div class="gmail_default" style="font-size:small">Yes, they are the ebay rods. I saw some e-mail traffic that they don't clear the cylinder liners at the bottom when rotated.</div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Jul 22, 2015 at 8:05 PM, Brad Eells <span dir="ltr"><<a href="mailto:tr4abrad@gmail.com" target="_blank">tr4abrad@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><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" target="_blank">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"><div><div>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></div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div><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></div></div>_______________________________________________<br>
<a href="mailto:fot@autox.team.net" target="_blank">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><span><font color="#888888"><br><br clear="all"><div><br></div>-- <br><div><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>
</font></span></div>
<br>_______________________________________________<br>
<a href="mailto:fot@autox.team.net" target="_blank">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/johnstydo@gmail.com" rel="noreferrer" target="_blank">http://autox.team.net/mailman/options/fot/johnstydo@gmail.com</a><br>
<br>
<br>
<br></blockquote></div><br></div></div>