Pro X or WSM performance pistons

[*97GTX*]

Simple question, which is better and is it worth the extra $20-30 for the Pro X pistons?

[Technical Support]

Re: Pro X or WSM performance pistons

Definitely Pro-X over WSM. We use our own which are just like OEM.

[*97GTX*]

Re: Pro X or WSM performance pistons

Ok, thanks. I would just buy from you guys but you don't sell an 82.25 piston.

Thanks.

Just curious, whats the difference?

[1fastski.com]

Re: Pro X or WSM performance pistons

i have used 100s of WSM pistons without failure .

[Technical Support]

Re: Pro X or WSM performance pistons

Different metals, different dimensions.

[WATERCRAFTSERVICES]

Re: Pro X or WSM performance pistons

Pro X Without A Doubt. I Have Used Them For Yrs And Built Hi Perf Motors With Them With No Failures.

[*97GTX*]

Re: Pro X or WSM performance pistons

Thanks for the replies, I guess I will go with the Pro X. One more question about the differences, Is there any performance differances or is it just build quality/materials. Both companies say they are designed to OEM specs except the WSM Performance Platinum Series.

[Technical Support]

Re: Pro X or WSM performance pistons

Performance as in power? No.

[Bill O'Neal2]

Re: Pro X or WSM performance pistons

I tried WSM's one time in a Polaris motor. The ring lands on the piston broke in an hour running time....... Never used them again. Pro-X makes excellent high silicone content cast aluminum alloy pistons that have always given me good service. I have used several sets of SBT pistons too without problems.

[Lucky you]

Re: Pro X or WSM performance pistons

What about Wiseco pistons are they any good? being forged arenīt they appropriate for modified engines?

[Technical Support]

Re: Pro X or WSM performance pistons

Quality wise, Wiseco are fine. User-wise, they are usually not. It takes someone familiar with them to set the motor up, with the appropraite larger clearances, and a user familiar with them to know how long to appropriately warm the engine up before doing any hard riding. Otherwise you get a nice hard seize.

I only recommend them to experienced builders/tuners/riders, NOT a recreational ski.

[Bill O'Neal2]

Re: Pro X or WSM performance pistons

Forged pistons are excellent high performance pistons for use in a racing motor.

Cast aluminum pistons are excellent pistons to use in a recreational motor that needs to run for hundreds of hours with tighter clearances, Quietier operation and less piston rattle.

[sin city]

Re: Pro X or WSM performance pistons

I am currently rebuilding GP 1200 with Wiseco Hot Rod crank assy. & Wiseco pistons. Doing myself with guidance from PR Racing Engines here in Toledo,OH. who also bored & ported cyls. for me. Will hope for the best & advise when completed.

[quickSX/XP]

Re: Pro X or WSM performance pistons

I have had nothing but good results using Wisecos for 2 and 4 stroke rec. applications

[sin city]

Re: Pro X or WSM performance pistons

I have had nothing but good results using Wisecos for 2 and 4 stroke rec. applications

i hope your right quickSX/XP. I"m tryin to stay reliable but max perf. thinking bout milled & squished stock head to boost comp & hp & maybe aft, reed set for xtra throttle response. Looking to hang buddies 1300r. We,ll see ! (62 mph gps ) Figure that out! Already do it out of the hole, now want to get him on straight shot.:D