Hi John; I find Yamaha rods from $100-$145 (they should cost about $70). Carrillo quoted me at $278 and $303 with the two modifications I wanted. I had asked...
David , I have a used Yam500 rod laying around which you are welcome to if you want.The SE wears out fairly fast under hard use and can't be rebushed.Thats...
David, These rods are strong and reliable for sure. Several of us have used them in racing engines over the years with no breakages. 14:1 CR road race engines...
Further to my last post: My Velo rod has a bush fitted to suit the smaller LE pin. Les also narrowed the rod to suit the later TT600 bearing and the smaller...
I use several Yamaha rods to and they never fail i use the XT 500 145 mm long rod (BE is 34 x 42 and 24 mm wide and the early TT 600 is 135.5 mm long ( be is...
Thanks Eldert and Greg, good testimony on the toughness of the Yamaha rods. Any advise on the hardness, depth, and method to harden the pin? I might have to...
... This thread has caused me to look up the specs on the material I do use for my LE bushes, and I was surprised to see that it is a leaded alloy. ( called...
Ian
iwd@...
Nov 2, 2008 11:06 pm
15185
... Too true ! Fibreglass is the other oft quoted example, take a brittle resin, combine it with glass and get a product that will bend with the best of them. ...
Ian
iwd@...
Nov 2, 2008 11:16 pm
15186
... I had a mate who raced a "Speed-car" I think they were called ( 2.5 litre speedway car ), not popular in my state, so I don't know that much about them....
Ian
iwd@...
Nov 2, 2008 11:31 pm
15187
Ian answered your hardening question, I use EN36A or EN39B (slightly stronger) but I don't know what that translates to in readily available steel in your neck...
Thanks again Greg and Ian. I did a little searching on the old mailing lists. You guys you had answered these sorts of questions before, so I appreciate the...
98%Cu with 2%Be has over 100,000#/in^2 tensile strength when heat treated. Not bad for what is almost entirely copper and, of course, carbon is pretty strong...
Hi all, I am building a v8 engine using the Rover v8 as a base, using 8 mikuni carbs ex gsx1100. I need to build some headers of the tri-y type. Does anyone...
Tri-Y headers are only beneficial on 90 degree V-8s with single plane cranks if you consider wave mechanics helpful at all. On 90 degree V-8 engines with...
Thanks for the info, my v8 is a 90 degree, not sure what is ment by single and dual plane cranks, could you please explain more. It seems that most headers...
snipped and bottom posted ... seems ... =============================== This page has images of both types of cranks. Flat crank V-8s have "secondary"...
On a single plane crank, all of the crank pins lay flat on a single plane as is the case with most inline four cylinder engines and when viewed from the end,...
OK, seems like tri-y headers are not the way to go, I will make up some 4 into one headers, I can get dimensions for those at http://www.headerdesign.com/...
Do be thorough. A friend has a Dodge van which needed more power and after doing a valve job plus a taste of porting, he asked about installing tube type...
Its not all about resistance, It needs to be of a tuned length so as to utalise the scavenging effect of the exhaust pulses. Then there is anti reversion...
At the Melbourne motorcycle show last week , I noticed that KTM have revived the Helmholtz chamber idea on the header on their 459 model ( & others ? ). Funny...
Ian
iwd@...
Nov 4, 2008 11:56 pm
15200
And with different angular crankshaft displacements between cylinders, what input would that be ? If you were able to physically join cylinders which are...
... Isn't it just. I noticed they'd started using them on their factory enduro bikes some time ago and wondered whether they'd opted for the resonator option ...
Not old and jaded, I'm a young fella (23) and I'm just as jaded about it. It's a crime that Kaaden's work isn't given more credit. Von Braun is in any...
... could ... They're pretty much all evolutionary improvements, not revolutionary new technologies. Pneumatic valves, DFI, deliberatly uneven firing orders,...
The latest point brought up in the header design thread, a return to a well-worn theme, is essentially that the innovations of type, like pneumatic valves,...
... This subject was raised a little while back at a club meeting, i.e. - could BSA et al have built a modern MotoGP bike with 1940's / 1950's technology &...
Ian
iwd@...
Nov 5, 2008 11:30 pm
15207
interesting, so do you mean Its kind of a silly A Connecticut Yankee in King Arthur's Court question, I know. If you time warped a MotoGP bike back to 1955,...
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