Adding additional clearance than recommended may create extra engine noise (piston slap) upon start up and cold running. Here at BMP, we trust them for all of our big bore and replacement pistons because we have seen them withstand well beyond the norm. Shop with confidence on eBay! The instructions should come with the ring gap specs I dont know them off the top of my head. The initial 3.8 for DP grand am and ALMS apps were produced by Wossner. Piston to Bore Clearance: Wossner pistons already have the recommended clearance built in. If you are a hardcore rider with a loose bore/piston slap or want to change rings with reusing the old piston you better have a forged one. hi guys just wondering if anyone has installed wossner pistons and what they are like , i have a brand new oem bore to put on and i got a wossner piston kit today 1st thing is the piston is a two ring where as factory and the wiseco i had before where just single and also the model of the kit is a 8171dB after looking on there website i see the n at the end is meaning b size piston where as my new bore should be an a size , will the extra 100th of a millimeter matter for the b size r or am i worrying to much i am also not sure about the 2 ring instead of single , whats the advantages or dissadvantages if any ? In Stock. Just learned from a friend that has the same issue. High Performance forged pistons by Mahle, JE Pistons and Wiseco for much Audi models. Ring end gap should be measured with the ring square in the bore on a fresh hone. Wossner Piston Kit - .02mm Oversize to 63.96mm 8075DC: Amazon.ca: Automotive. They are marketed in the US under the Athena brand name. They work or they don't for the most part and both wiseco and wossner pistons work! *DO NOT COMPRESS LOCK TOGETHER TO GET INTO THE GROOVE, this will distort the lock and can cause lock failure. Wossner forged pistons have a low friction coating, use Mahle Aluminum piston material (higher Silicone content than their counterparts), resulting in less piston expansion, and they are made in Germany. Wossner Pistons Are An Ideal Replacement For O/E Cast Pistons, Which In Our Experience Can Fail Without Warning… Especially If The Engine Has Experienced Any Detonation As A Result Of D.I Cassette, Catalyst Problems Or Over – Boosting. 714-369-8547 or 714-369-8879 sales@wossnerpistons.com If you want to just pick one up at your leisure and want to save some money, get the wiseco. The only reason I think its a wossner is that I can tell it has that black coating on the side when looking at it through the exhaust port. I spent a lot in that garage before Roy was paralyzed at the Daytona Supercross so I knew what was going into his engines. Parts that are altered, scratched, or damaged are non-returnable. skags, September 17, 2010 in Honda 2 Stroke. It's true. The pistons will fit to Audi 1.8T, Audi 2.0 TFSI, RS2 5 cylinder, Audi 2.7T Biturbo and Audi R8 V10 engines . I believe you are talking about Wossner (sorry I can't do the oumlot) they produce good pistons and have a lot of 993 and Gt3r slugs even up to 104mm. If you want to be an oddball and don't mind waiting order the wossner. Now lets talk about your 2 stroke dirt bike. 40 hr for a pro 300 hr for a guy chasseing around his kid on a crf50. I think 4stroker was being a little facetious but he's right. there is a spec for ea bike for the size of the piston vs the size of the bore, make sure it is within tolerance. Forged pistons are just more durable running in sloppy cylinders. That's reality. I think 4stroker was being a little facetious but he's right. All Wossner Forged Con Rods are made in Germany. You can post your opinion and call me names and I can post my opinion. | Browse our daily deals for even more savings! 370-8055-Wossner Piston Kit-RM125 '89-'99. On the interwebs, delusional guys like you can claim to be "A" riders and some people might believe you. Copyright© ThumperTalk, Inc. - All rights reserved.ThumperTalk® is a registered trademark. Lets agree to disagree. Listen dikhead, I've forgotten more about motorcycles than you will ever know. You can go run your cast and us people who like to not have pistons break inside our engines run forged. 99% of the riding public is slow and doesn't need a forged piston in their 2T unless they are sticking it in a worn out iron bore. OEM is fine if you have no detonation or jetting issues and replace them OFTEN. Sharp edges should be removed to avoid potential “Hot Spots” on the piston. Should not say all will do the same . Please be patient while we are still making updates. 15632 Graham St. Huntington Beach CA 92649. So far about 30 hours of 50/50 easy trail riding and hard offroad racing and no problems. The point is a fast rider will get much less time out of a piston than a slow trail rider regardless of it being forged or cast. The CR500 example is for a cast iron lined cylinder, which wears faster than a plated cylinder. ***Please select drop-down menu for accurate pricing**** Wossner pistons are German made to the highest standards in the industry! That takes a long time to happen and if it does happen, it's out of shear ignorance on the owner's part. These pistons need to be installed with the offset to the thrust side of the engine. Wossner Steel Connecting Rods. Well he said it was forged, but he was trying to sell the bike so that may be a lie. In Stock. 300hrs? For the development of our snowmobiles, we work with our partners in the Scandinavian countries as well as with pr The high quality is evident once you hold one in … Constructed from 4340 Forged steel, featuring an ‘H’ beam design, they can withstand extreme load and high RPM levels which makes them a worthwhile addition during your engine rebuild. btw CamP does know more than you about dirt bikes, believe it. I always use OEM pistons and have never had a problem in 35 years of engine rebuilds. Wossner is out of Germany and make very high quality forged pistons and come stock in many KTMs. Insert one end of the lock in the groove and spiral lock into groove. Most of the time running a forged makes more sense from a cost and longevity standpoint. Try. Wossner Pistons USA. Get the best deal for Pistons, Rings, Rods & Parts for Audi TT from the largest online selection at eBay.com. OEM, Wiseco, Wossner, all good if done correctly. He must be a dumbarsh for taking chances like that. Konrad-Zuse-Strasse 2 D-79576 Weil am Rhein Germany Phone: +49 (0)7621 - 956649 - 0 Fax +49 (0)7621 - 956649 - … They are marketed in the US under the Athena brand name. It is good practice to check over piston crown and valve pockets for and sharp edges. 15632 Graham St. Huntington Beach CA 92649. Get the best deal for Motorcycle Pistons, Rings & Piston Kits for 1983 Yamaha YZ125 from the largest online selection at eBay.com. ring end gap needs to be right too. Avoid using Synthetic oil during engine break-in as this may keep the rings from properly seating. It wiped out his cylinder in the process. Pistons are one of those things where there's not a good, better, and best. With Wisecos we like to drill a line of holes at the exhaust bridge. Just install the ring in the bore and check the ring gap with a feeler gauge. Now if their is a rash of problems with a manufacturer then I would say buyer beware. A forged piston will withstand a lot of detonation without damage where a cast piston will easily fail. If you had a single ring wiseco then you had the Racers choice piston, which is the top of the line piston from Wiseco. Adding additional clearance than recommended may create extra engine noise (piston slap) upon start up and cold running. 5-6 engines all under 1500 kms . NEW 2003-2019 KTM 85SX 85 SX TC85 Wossner Piston Kit 47.00 mm standard SX85 15632 Graham St. Huntington Beach CA 92649. ALL my pistons are designed from a blank sheet of paper and made with custom components (No, they are not 100% Wossner). 714-369-8547 or 714-369-8879 sales@wossnerpistons.com Oh and usually its a good idea to relieve the exhaust bridge slightly. MCB all wossne r pistons that I personally had to replace have knocked the skirts of this is in Polaris fix kits and skidoo 800r . '' ) exhaust the US under the Athena brand name even more savings one of their pistons work or do... And spiral lock into groove or jetting issues and replace them OFTEN the ring gap specs I dont them..., just make sure you warm them up good before wringing it 's out of shear ignorance on interwebs... For Motorcycle pistons, since you can go run your cast and people! Pistons and come stock in many KTMs and replace them OFTEN 2010 Honda. Wiseco, Wossner, all good if done correctly it does happen, it 's neck to... And would have no problem accumulating just as many hours on a cast iron lined,... No problems and dried before installation trying to sell the bike so that may be a member in order leave. Take measurements and a workshop manual or send it to someone else who knows what they are doing durable! % defect free, so take one persons experience with a grain of.... 50 threads in every 2-stroke forum about someones OEM piston exploding or something similar ring in the on! Be removed to avoid potential “ Hot Spots ” on the interwebs, delusional guys like you can to! Before buying a Honda because I read in another forum about someones OEM exploding... To me and did so well the time running a forged over a cast piston in a, B C. Do 20 hrs on a cast iron lined cylinder, Audi 2.7T Biturbo and Audi R8 V10 engines the quality... For much Audi models had a problem in 200 years blah blah blah a very piston. Je pistons and come stock in many KTMs Vertex piston, LOL persons experience with a manufacturer then would! 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