What piston for 686?
Dec 8, 2004 | 11:24 AM
#13
Pro Rider
Joined: May 2003
Posts: 2,293
Likes: 0
What piston for 686?
Originally posted by: bad350twin
ive heard all the horror stories too! my build is like 2+ years old and i have a 12.5:1 je in my raptor and shes doing great! i must of got a good one. Now if i could find a good clutch and head gasket i would be alright! Any suggestions on a clutch and head gasket?
ive heard all the horror stories too! my build is like 2+ years old and i have a 12.5:1 je in my raptor and shes doing great! i must of got a good one. Now if i could find a good clutch and head gasket i would be alright! Any suggestions on a clutch and head gasket?
Dec 8, 2004 | 11:57 AM
#14
Pro Rider
Joined: Feb 2003
Posts: 459
Likes: 0
What piston for 686?
the problem with the JEs is that the builder tries to lighten them too much and they crack around the wrist pin. Je redesign that problem almost a year ago. honestly when was the last time you heard of a problem with a newer piston. we use JE and have never had any issues.i'm not here to start a "my buddy said" war i just think people are stuck in the past. JE found the problem and fixed it. we are not the only builder to use them.
Dec 8, 2004 | 12:11 PM
#15
Pro Rider
Joined: Mar 2003
Posts: 1,189
Likes: 0
What piston for 686?
Originally posted by: maddog56
Its not a problem with JE as a whole, its a problem with the design and wrist pin of the raptor piston. JE is great, but if you own a raptor you should avoid them like the 01 tranny.
I too will vouch for wiseco. If you are running 11:1 100mm to 102mm I really dont see a better choice. Ross and CP are great but do not have any significant power advantages if any. With the 10.75:1 you may even be losing power, I havent tested them so I cant be sure on this application. The reliability on all is excellent and wiseco is about half the price.
Originally posted by: PassTheCannabis
Why does everyone thing JE pistons crack alot? when Venom Racing Upgrades Vipers to over 700hp, they put in 11:1 JE pistons!!! it says it right in Motor Trend!!!
Why does everyone thing JE pistons crack alot? when Venom Racing Upgrades Vipers to over 700hp, they put in 11:1 JE pistons!!! it says it right in Motor Trend!!!
I too will vouch for wiseco. If you are running 11:1 100mm to 102mm I really dont see a better choice. Ross and CP are great but do not have any significant power advantages if any. With the 10.75:1 you may even be losing power, I havent tested them so I cant be sure on this application. The reliability on all is excellent and wiseco is about half the price.
BUT MY WRIST BIN BROKE CLEAN IN HALF??? not a lightening thing... the wrist pin just broke??? didn't hit a valve or anything... i have a pic still in my pic page...
Dec 8, 2004 | 04:31 PM
#16
Pro Rider
Joined: Aug 2001
Posts: 2,121
Likes: 0
What piston for 686?
Originally posted by: madracing
the problem with the JEs is that the builder tries to lighten them too much and they crack around the wrist pin. Je redesign that problem almost a year ago. honestly when was the last time you heard of a problem with a newer piston. we use JE and have never had any issues.i'm not here to start a "my buddy said" war i just think people are stuck in the past. JE found the problem and fixed it. we are not the only builder to use them.
the problem with the JEs is that the builder tries to lighten them too much and they crack around the wrist pin. Je redesign that problem almost a year ago. honestly when was the last time you heard of a problem with a newer piston. we use JE and have never had any issues.i'm not here to start a "my buddy said" war i just think people are stuck in the past. JE found the problem and fixed it. we are not the only builder to use them.
Dec 8, 2004 | 05:29 PM
#17
Pro Rider
Joined: Mar 2003
Posts: 1,189
Likes: 0
What piston for 686?
bubba - madracing knows what he is talking about bro... if he says they've made changes my money is on him??? My dad's and uncles bikes are the older version from 2+ years ago with about 2k runs on them... so They build a good piston, I had a bad one???
Dec 8, 2004 | 07:43 PM
#18
Elite Pro Rider
Joined: Sep 2002
Posts: 9,380
Likes: 1
What piston for 686?
We all know JE made changes, I dont think thats being contested. But I believe there have been a few instances of people with redesigned pistons having reliability issues. I cant remember for sure but I had thought that Craycraft itself had run into problems with these "redesigned" units and that attributed to their switch to Ross and eventually CP.
Dec 8, 2004 | 07:57 PM
#20
Pro Rider
Joined: Mar 2003
Posts: 1,189
Likes: 0
What piston for 686?
Originally posted by: maddog56
I cant remember for sure but I had thought that Craycraft itself had run into problems with these "redesigned" units and that attributed to their switch to Ross and eventually CP.
I cant remember for sure but I had thought that Craycraft itself had run into problems with these "redesigned" units and that attributed to their switch to Ross and eventually CP.