Bemeco Posted January 4, 2005 Share Posted January 4, 2005 Helo Just for Xflow freaks!!! Many hours later Results. Please view http://community.webshots.com/user/bemeco 575grams weight left Cosworth bolts included. I am going to use Accralites + these Conrods totaly nearly 300grams lighter then Hepolites and standard con rods. / Bengt Metz Bengt Metz +4640546729 bengt.metz@tele2.se Edited by - bemeco on 4 Jan 2005 16:26:08 Link to comment Share on other sites More sharing options...
Leadership Team Mcalvert Posted January 4, 2005 Leadership Team Share Posted January 4, 2005 Hmm, I get an error ☹️ Michael. Link to comment Share on other sites More sharing options...
Bemeco Posted January 4, 2005 Author Share Posted January 4, 2005 Try Again Michael / Bengt Metz Bengt Metz +4640546729 bengt.metz@tele2.se Link to comment Share on other sites More sharing options...
Scalper Posted January 4, 2005 Share Posted January 4, 2005 I am going to use Accralites + these Conrods totaly nearly 300grams lighter then Hepolites and standard con rods does anybody know the weight of the standard conrods 🤔 Enrico Headrests wanted Link to comment Share on other sites More sharing options...
Bemeco Posted January 4, 2005 Author Share Posted January 4, 2005 Helo Weight for hepolites plus standard con rods aprox 1310 grams / Bengt Metz Bengt Metz +4640546729 bengt.metz@tele2.se Link to comment Share on other sites More sharing options...
Joe 90 Posted January 4, 2005 Share Posted January 4, 2005 Very pretty How long did that take? SEP field working, not spotted in 103,000 miles. Some photos on webshots, updated 21 Sept Link to comment Share on other sites More sharing options...
Bemeco Posted January 4, 2005 Author Share Posted January 4, 2005 Too long, but they last for ever. / Bengt Metz Bengt Metz +4640546729 bengt.metz@tele2.se Link to comment Share on other sites More sharing options...
Revin Kevin Posted January 5, 2005 Share Posted January 5, 2005 Bengt, Are you shot peening them? Chris Link to comment Share on other sites More sharing options...
Bemeco Posted January 6, 2005 Author Share Posted January 6, 2005 No Shoot peening and polishing are to alternative methods to strengthen con rods. / Bengt Metz Bengt Metz +4640546729 bengt.metz@tele2.se Link to comment Share on other sites More sharing options...
Sheds Moderator Posted January 6, 2005 Share Posted January 6, 2005 Oh, OK, I get it. I was going to ask "how does this extend their life?" but I imagine that the answer is that with a polished surface there are no cracks to propagate so they are less susceptible to fatigue cracking over life. Link to comment Share on other sites More sharing options...
Bare Posted January 6, 2005 Share Posted January 6, 2005 Perhaps.. Folklore plays a large part here :-) Shot peening has proven effective.. Polishing has given 'mixed' result. Pretty tho :-) Hepolite Pistons are best suited for on'e's Garden Tractor ...imho Link to comment Share on other sites More sharing options...
Revin Kevin Posted January 6, 2005 Share Posted January 6, 2005 Bengt Polishing removes stress/crack raisers but actualy removes the outer surface, which is in itself very tough layer and is a significant amount of strength of the rod. Shot peening compresses the outer surface restoring this hard layer and therefore strength. It's not an either or. Everytime I've hard components polished as yours previously I've hard them shot peened afterwards. Cheers Chris Link to comment Share on other sites More sharing options...
Peter T Posted January 6, 2005 Share Posted January 6, 2005 Shot peening and polishing are not related in anyway concerning strengthening of cast components. The only advantage of polishing a standard cast item is the removal of the 'Flashing' this is where the mould was seperated, the only good practice here is to remove the flashing as it is prone to flaking/breaking off and contaminating the engine. Actually polishing the rods will indeed have caused a big discreptancy in the harmonic balance of the rods from end to end, and in all being the same, this is unless you have had them balanced after. If a minute stress fracture is pressent in the material structure then it makes no differance in how shiny you make the rods, as the failure can be internal which will only be seen with ultrasonic/ UV dye equipment. Several arguements have arisen over whether polishing the surface increases the succepability of hairline fractures as the smooth surface offers no resistance to creaping cracks, whereas a mottled surface does to some extent. Support the 7 Society...... Ehhh? Link to comment Share on other sites More sharing options...
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