information needed on a piston kit?

[Addy Leung]

Would anyone tell the following GS1100-16V piston kit is street kit (10.25:1) or a turbo piston kit?

http://page9.auctions.yahoo.co.jp/jp/auction/k52106875

the part no. is a street kit but the photo of the piston look like a turbo piston.

[Suzuki mad]

Took the same pistons 4193PS out of my road GSX1100ESD in 2005. They look nothing like those in the picture!

Suzuki mad

[LarryT]

I have a set of MTC turbo piston that look close to those. I say they are turbo piston

[LarryT]

mine are the middle ones

[Steve]

Do you know for a fact that they are 10.25:1 or are you guessing?

If they are 10.25:1, I would suspect they are not for turbo use. Usually, for turbo use, you will drop the compression ratio a bit. 10.25 sounds just a bit higher than stock to me.


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[rapidray]

Those are TURBO pistons. In that bore size the 10.25s are FLAT tops. On the bigger bores, like 82mm & bigger the 10.25s are dished like the ones you pictured. These in your pictures are DEFINITELY dished & are, in my guess, about 8.5 to 1. Hope this helps. Also, If you are interested, I can have made for you CP Pistons in whatever configuration you would like. Custom GS pistons will run you about $700.00 with all the bells & whistles. Let me know if you are interested or if I can help you. I build & race GS motors that are FAST & LIVE! Ray.