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Message started by BurnPgh on 10/18/09 at 21:16:36

Title: Wiseco piston
Post by BurnPgh on 10/18/09 at 21:16:36

When going overbore with a wiseco piston should I replace the piston pin with the wiseco version as well or will the stock one work? I assume it doesnt matter if i used the stock one but I just wanted to double check.

Title: Re: Wiseco piston
Post by verslagen1 on 10/18/09 at 21:35:30

The wiseco piston kits come with pin and rings   ;D

Title: Re: Wiseco piston
Post by BurnPgh on 10/18/09 at 21:36:29

thats weird. Looking on their website they're all listed seperately...along with the wrong bore/stroke info...but now I know. Thanks much

Title: Re: Wiseco piston
Post by verslagen1 on 10/18/09 at 21:43:17

p/n 4597M09500 is the one I got and has all 3 in it.
9500, this is the 1mm overbore kit.

Title: Re: Wiseco piston
Post by BurnPgh on 10/18/09 at 21:45:27

im assuming it came with the pin circlips aswell?

Title: Re: Wiseco piston
Post by verslagen1 on 10/18/09 at 22:04:10

1 piston
1 pin
2 clips
1 compression ring
1 oil ring
1 kit box with label
1 ring kit box with label
1 clip bag
1 pin bag
1 installation instructions (english only)
recommended clearance printed on box

Title: Re: Wiseco piston
Post by BurnPgh on 10/18/09 at 22:09:21

a shame you dont get paid for all the people you help here on a daily basis .

Title: Re: Wiseco piston
Post by verslagen1 on 10/18/09 at 22:22:21

All donations can be sent to my email address via paypal.
I'd appreciate it if you keep your own tally and send when you got enough for a 6pack.   ;D

Title: Re: Wiseco piston
Post by BurnPgh on 10/18/09 at 23:10:32

I just might...what'll you have?

Title: Re: Wiseco piston
Post by RadRacer on 10/19/09 at 04:07:02

Is that the biggest size we can go or can we get the 9600 or 9700?

Title: Re: Wiseco piston
Post by verslagen1 on 10/19/09 at 09:06:54

do a search and you just might find out.

Title: Re: Wiseco piston
Post by BurnPgh on 10/19/09 at 10:02:35

97s the biggest. Put you almost to 700cc. But a 95mm will put you at 666cc (665.95 but whatever). How savage is that?

Title: Re: Wiseco piston
Post by Phelonius on 10/19/09 at 10:20:55

The Wiseco piston pin is shorter than the stock one. Use the wiseco pin with the wiseco piston.
Weight the stock piston and pin together and weigh the Wiseco piston and pin.
Compare weights and tell me what you found.

Phelonius

Title: Re: Wiseco piston
Post by RidgeRunner13 on 10/19/09 at 10:24:39

Has anyone checked to see if you can get a gapless top ring set for this piston? I've used them in an Opel GT race motor that turned 8300 rpm & leakdown tests showed only 2-3% loss over close to 3 seasons of racing. The oil will stay clean a lot longer due to less contaniments getting past the rings into the crankcase. They are worth the money in my opinion.

Title: Re: Wiseco piston
Post by BurnPgh on 10/19/09 at 10:47:44

im very aware that the wiseco pistons are much lighter. I havent seen anyone complain seriously about it though. And im wary of adding more counterweight lest it end up flying through the case as was your misfortune. I will weigh them if I remember. Im not planning to do all this until next fall/winter . Im just gathering info and prices for the time being.

Title: Re: Wiseco piston
Post by RidgeRunner13 on 10/19/09 at 10:55:35

My thinking, with out taking the time to look in the manual right now, is you would want to get the crank-rod-piston combo balanced & have the counterweight shaft balanced to match. The lighter setup would rev much quicker because of the decrease in rotating mass. :) :) ;D

Title: Re: Wiseco piston
Post by Phelonius on 10/19/09 at 11:58:50


4F787F635D6A650D0 wrote:
im very aware that the wiseco pistons are much lighter. I havent seen anyone complain seriously about it though. And im wary of adding more counterweight lest it end up flying through the case as was your misfortune. I will weigh them if I remember. Im not planning to do all this until next fall/winter . Im just gathering info and prices for the time being.


I was just wondering how much weight difference you would find, (mine was 33 grams), and if nothing was done to equalize it, how much vibration would result.

Phelonius

Title: Re: Wiseco piston
Post by BurnPgh on 10/19/09 at 12:03:02

Once i get it all done I'll send you the teeth that rattle out of my head  ;D That ought to be a good indicator.

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