Woessner Turbo Pistons from Seb at NLR

[sportbikeryder]

Thank you Seb for supplying Woessner pistons in a very cost effective adn timely manner!

Quick pictoral review of the Woessner Gen 1 Hayabusa 81mm bore off the shelf pistons. I have no knowledge of piston alloy,

strength of the piston, expansion, manufacturer reccommended ring end gap, etc.

These pistons are competitively priced with other shelf pistons.



Exterior packaging typical of a set of 4 pistons.


Interior packaging typical of a set of 4 pistons.


Spec sheet that came with the pistons. This is the only area where the Woessner pistons are lacking. The spec sheet just

doesn't contain enough information about the pistons such as compression distance, diameter of the piston, ring groove

dimensions and spacing, +/- cc of dish, coating information, etc.

I have mentioned this to John Noonan and he noted that the spec sheet will likely get better in time and that the retail

market is fairly new to Woessner. FYI, Compression Distance is 1.055".



Rings, Pin, Clips, etc, typical of a set of 4 pistons



Next, a few views of the piston:





Generous taper on sides of pin bosses





Anti-friction coating sprayed on skirt.





Gas porting on top ring evident in this picture. 8 gas ports total spaced around the perimeter in each quadrant

[sportbikeryder]

Piston crown is well finished. Almost all edges are pre-chamfered the only area that will need a any significant prep is in

the valve pockets near the center of the piston where it is difficult to machine a chamfer. A generous radius is machined on

the top edge of the "dish".










Pin bore conains two "lobes" at ~ 2:00 and 10:00 to aid in oiling.






Finish on the underside of the piston is also very complete. Almost all of the original forging has been processed.Note the

chamfers on almost all edges even on the bottom of the piston.

[TunerRacer]

These are the pistons i'm using now and they are by far the nicest out of the package we've ever used!


-

[2cAnnons]

any for a 1000?

[sportbikeryder]

any for a 1000?

It looks like they do have them listed for an 01-04 and 06-08

Multiple overbore sizes available as well.

Call Seb and he will be able to tell you for sure.

[MR. Suzuki]

any for a 1000?

High compression two ring gas ported coated pistons are in stock for 01-04 and 05-08 GSXR's, turbos pistons are coming.

John Noonan

[Double05]

Good info!!
Thanks for sharing.

[2cAnnons]

High compression two ring gas ported coated pistons are in stock for 01-04 and 05-08 GSXR's, turbos pistons are coming.

John Noonan

turbo is what im looking for. Price guess? same as the HC?

[MR. Suzuki]

turbo is what im looking for. Price guess? same as the HC?

Yes they will retail for about the same prices..


J

[tnfastbusa]

will the pins hold up to 600hp

[MR. Suzuki]

The pistons and pins have already handled over 600 hp on the dyno in New York.

If you have any questions please ask.

Thank you,

John

[Ronnie Mitchell]

I will have them in my bike in Valdosta, GA

[NLRsystems]

550 shipped to your doorstep. If your in California you'll save a bunch of money as you wont be charged sales tax!

Place your orders now.

[tnfastbusa]

how far are you guys putting these piston in the hole .80 just like the je.pistons

[sportbikeryder]

how far are you guys putting these piston in the hole .80 just like the je.pistons

THe pistons have a +.080 compression distance, so you need an .080" base spacer. The pistons don;t end up in the hole though as the compression distance brings the piston crown back up.

Same as JE's,

When installing, be sure the pin clips are fuly seated in teh grooves as they are a snug fit.