Best pistons on the market! Totally changed over to them as soon as they were available, and the only pistons I recommend to my customers.
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| H2 piston options http://kawi2strokes.com/forum/viewtopic.php?f=2&t=11650 |
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| Author: | seadoodr. [ Thu Apr 21, 2016 7:21 pm ] |
| Post subject: | H2 piston options |
Looking for piston options other than wiseco. I am reading a lot of good things about wossner but I have no experience with them. Who's running them and how do you like them? Pros and cons appreciated. |
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| Author: | Ja-Moo [ Thu Apr 21, 2016 7:40 pm ] |
| Post subject: | Re: H2 piston options |
Best pistons on the market! Totally changed over to them as soon as they were available, and the only pistons I recommend to my customers.
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| Author: | Jim [ Thu Apr 21, 2016 8:00 pm ] |
| Post subject: | Re: H2 piston options |
Wössner pistons are working very well in my H2, even though I cut gaping slots in them. 
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| Author: | seadoodr. [ Fri Apr 22, 2016 5:57 am ] |
| Post subject: | Re: H2 piston options |
Ja-Moo wrote: Best pistons on the market! Totally changed over to them as soon as they were available, and the only pistons I recommend to my customers. What clearance do they recommend? |
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| Author: | Jim [ Fri Apr 22, 2016 7:42 am ] |
| Post subject: | Re: H2 piston options |
0.0027" (0.07mm) |
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| Author: | seadoodr. [ Fri Apr 22, 2016 9:24 am ] |
| Post subject: | Re: H2 piston options |
Thanks for the input guys, I think I'll give them a try. |
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| Author: | Retro 3 [ Fri Apr 22, 2016 7:36 pm ] |
| Post subject: | Re: H2 piston options |
Jim wrote: Wössner pistons are working very well in my H2, even though I cut gaping slots in them. Hey Jim, did you weigh your pistons before (and after) ? Just curious, the difference. Been Pondering about how to balance a Triple |
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| Author: | Jim [ Fri Apr 22, 2016 8:08 pm ] |
| Post subject: | Re: H2 piston options |
Shane, I probably weighed them, but it's been a few years now and I'm sure I don't have the information, sorry. But obviously you can't cut slots for balance purposes! Usually you can remove a little material from places like the wrist pin boss, if they make a balancing pad there, or the underside of the piston crown. The first time I made my three pistons the same weight, which was around 1979, I had to grind the underside of the crowns of the heavy ones. |
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| Author: | Ja-Moo [ Fri Apr 22, 2016 9:09 pm ] |
| Post subject: | Re: H2 piston options |
The Wossners are great, I just drilled two sets and they were still spot on weight wise.
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| Author: | Retro 3 [ Fri Apr 22, 2016 9:40 pm ] |
| Post subject: | Re: H2 piston options |
But obviously you can't cut slots for balance purposes! Usually you can remove a little material from places like the wrist pin boss, if they make a balancing pad there, or the underside of the piston crown. The first time I made my three pistons the same weight, which was around 1979, I had to grind the underside of the crowns of the heavy ones.[/quote] Jim, Here are a few pics of my Balancing Room: An Ls9 from a ZR1 Vette. Had to add 200 grams of tungsten to get it to less than 3 grams of imbalance. I've balanced numerous V8, V6, Inline 6 and 4's. But never a Triple. I know that the slots aren't for balancing but, it does change the rotating weight.    
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