I have an '02 Viper with SLP pipes, that I am in the process of sending the crank out to be indexed and welded at Bender Racing. I have been looking into possibly replacing the pistons, rings and rod bearings, as the motor that is in it is a replacement, and I don't know the mileage on it. I am going to have a buddy check the clearance on the pistons/heads to see IF they should be replaced, or do you think I should do it anyways since I'm already into the motor.
I see a lot of folks are against the Wiseco Forged pistons and state to stick w/ stock OEM. I saw these pistons and was curious if anyone has an opinion on them. Here is the link (you may have to copy and past in your browser)
http://www.mcbperformance.com/viper.html
Description of pistons offered by MCB Performance, in Capac, MI:
$275.00 MCB Moly-Coated OEM-Style Piston Kit
All MCB pistons are MOS2 coated; proven to be the best for durability and lubricity. The piston material is high silicone content to give the necessary hardness that aluminum pistons need. The piston-tops are hard anodized for heat resistance and to minimize piston expansion/contraction; this combined with the coating virtually eliminates the possibility of cold seizure. All pistons are EXACT OEM dimensions and mass, including ring grooves (we actually use OEM rings). These pistons offer equal or BETTER than OEM performance at significantly less cost. All kits include everything necessary to rebuild your sled. Pistons, rings, wrist pins, circlips, and a complete gasket kit.
Any opinions on these? Has anybody used them or the company before? Thanks in advance,
Rick
I see a lot of folks are against the Wiseco Forged pistons and state to stick w/ stock OEM. I saw these pistons and was curious if anyone has an opinion on them. Here is the link (you may have to copy and past in your browser)
http://www.mcbperformance.com/viper.html
Description of pistons offered by MCB Performance, in Capac, MI:
$275.00 MCB Moly-Coated OEM-Style Piston Kit
All MCB pistons are MOS2 coated; proven to be the best for durability and lubricity. The piston material is high silicone content to give the necessary hardness that aluminum pistons need. The piston-tops are hard anodized for heat resistance and to minimize piston expansion/contraction; this combined with the coating virtually eliminates the possibility of cold seizure. All pistons are EXACT OEM dimensions and mass, including ring grooves (we actually use OEM rings). These pistons offer equal or BETTER than OEM performance at significantly less cost. All kits include everything necessary to rebuild your sled. Pistons, rings, wrist pins, circlips, and a complete gasket kit.
Any opinions on these? Has anybody used them or the company before? Thanks in advance,
Rick
mattyg1405
New member
heres my thing , if your doing the bottom end youd be crazy not to go through the top... doesnt really mean you should change the pistons unless you need to but deff re-ring it...
staggs65
Moderator
x2 check to see if your pistons are in spec, if yes just re-ring and deglaze your cyls. there's nothing wrong with wiseco's, i run em in some very high horse car engines, but you MUST WARM THEM UP PROPERLY, or you could cold seize, my .02
mopar1rules
Active member
02ViperMody44 said:
your buddy is going to check the clearance between the pistons and heads???.....WHAT??? i think you mean piston/cylinder clearance from wear? also, the MCB piston kit, i believe is nothing more than SPI cheapo taiwan pistons. they do come teflon coated on the skirts and hard anodized crowns. i've used them in ski-doo revs before w/o issues. they do work for cheap rebuilds, when the wallet isn't very deep, but i would stick to OEM pistons, if so on the yamahas, as the OEM pistons are very good and reasonably priced.
mopar1rules said:
Yeah, I meant the piston to cylinder clearance. I was up late typing. I was just curious if there was a better than OEM piston, w/o going to a Wiseco forged, therefore avoiding the "possible" cold seizure. Sounds like OEM is the way to go.
Is there a recommended sponsor to purchase pistons and/or rings, gaskets, seals, or are they all the same price ranges from all Yamaha dealers, by time you factor in shipping and whatever.
Thanks again,
Rick
M-Max
New member
I ordered my Bender pipes from MCB.
They took forever. There was some miscommunication between Bender
and MCB. I would check that they have the pistons in stock.
It seems most of their stuff is dropped shipped from other suppliers.
Just my .02
They took forever. There was some miscommunication between Bender
and MCB. I would check that they have the pistons in stock.
It seems most of their stuff is dropped shipped from other suppliers.
Just my .02
I have not been happy dealing with MCB.
Very poor customer service, seems like they are not set up to deal with many orders at once.
Just my opinion.
Very poor customer service, seems like they are not set up to deal with many orders at once.
Just my opinion.
mopar1rules
Active member
Any of the site sponsors are recommended . . .02ViperMody44 said:
snocrosser
New member
I haven't had very good luck with MCB before either, it seems if your not gonna spend $1000's with them they don't want to deal with ya. And they are 5 minutes down the road from me. I'm not here to bad mouth anyone but I would try site sponser's. And have always had great luck with Port Yamaha. Great guys to deal with there. I will pay alittle more and wait a few days for parts than be treated like dirt. Just my two cents.
Thanks for all the replys. I will go with the sponsors.