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Workshop => Engine and Bottom End => Topic started by: zarathos on October 07, 2013, 06:25:36 PM

Title: Piston Preference
Post by: zarathos on October 07, 2013, 06:25:36 PM: Just curious what brand of piston everyone prefers and why. Wiseco? Pro-x? Is there a brand I should definitely stay away from? I've always ran Wiseco in snowmobiles with good luck. The guy that built my Scrambler engine put a Namura piston in it, so I guess I'll find out if that's any good. Anyway, let's hear what you like, or don't.
Title: Piston Preference
Post by: jfwyatt1 on October 07, 2013, 07:01:12 PM: never had any problems with prox or wiseco used them for years. never had a failure due strictly to piston. most the time it was something i did
Title: Piston Preference
Post by: udontknowme on October 08, 2013, 12:05:06 AM: namura is taiwan. use at your own risk . me personally i wouldnt ever use one in my own bikes but i dont wanna knock your mechanics decision
Title: Piston Preference
Post by: zarathos on October 08, 2013, 12:24:44 AM: Yeah, I figured as much. He's a very good, meticulous builder, however he mostly does stock stuff. I guess he's had good luck with Namura, but I don't think he's ever put one in anything with real power. We'll see how it goes, he stands behind his work, if there's a problem he'll take care of me.
Title: Piston Preference
Post by: udontknowme on October 08, 2013, 12:36:59 AM: someone threw away a yz80 in the landfill one time so i took it home and found out the piston was missing. put namura in it just so i could sale it. not sure how long it held up. they didnt call pissed off so i guess it didnt blow up right away lol
Title: Piston Preference
Post by: jcs003 on October 08, 2013, 06:48:55 AM: i prefer wossner. they are a lil heavier than weisco, but they are moly coated which aids in the break-in process. plus, they cost less than weisco.

john
Title: Piston Preference
Post by: rablack21 on October 08, 2013, 08:52:33 AM: I prefer Wiseco pistons. I have always had great performance from them.

For some additional info, this article has alot of good info on the pros and cons of cast and forged pistons:
http://motocrossactionmag.com/Main/News/2ac9054e-06a3-4217-ab97-8a488fd98935.aspx (http://motocrossactionmag.com/Main/News/2ac9054e-06a3-4217-ab97-8a488fd98935.aspx)
Title: Piston Preference
Post by: broken1 on October 08, 2013, 09:41:22 AM: I've used oem & weisco pistons in my bike with no issues. The 86 I recently got has a pro-x piston in it, I haven't ran it yet but I'm sure it will work fine. I would think that a person would be safe using any one of the known piston manufacturer's but as with anything mechanical, every now & than you get a dud.