Page 1 of 2
Thin ring/quality piston options for standard GP/200dl?
Posted: Sun Jun 03, 2012 12:44 pm
by vegansydney
What are my options for a quality 66.0mm piston with thin rings? Its for a standard GP/200dl so a MBD RaceTour is probably overkill. Looking for something with a full skirt (71mm).
Re: Thin ring/quality piston options for standard GP/200dl?
Posted: Mon Jun 04, 2012 11:00 am
by Muttlyoo7
vegansydney wrote:What are my options for a quality 66.0mm piston with thin rings? Its for a standard GP/200dl so a MBD RaceTour is probably overkill. Looking for something with a full skirt (71mm).
Asso pistons are good and don't break the bank. AF use them in a lot of thier kits.
Re: Thin ring/quality piston options for standard GP/200dl?
Posted: Mon Jun 04, 2012 8:28 pm
by mickdale
Muttlyoo7 wrote:vegansydney wrote:What are my options for a quality 66.0mm piston with thin rings? Its for a standard GP/200dl so a MBD RaceTour is probably overkill. Looking for something with a full skirt (71mm).
Asso pistons are good and don't break the bank. AF use them in a lot of thier kits.
arent the inlets cut though?
Re: Thin ring/quality piston options for standard GP/200dl?
Posted: Mon Jun 04, 2012 8:36 pm
by Muttlyoo7
mickdale wrote:Muttlyoo7 wrote:vegansydney wrote:What are my options for a quality 66.0mm piston with thin rings? Its for a standard GP/200dl so a MBD RaceTour is probably overkill. Looking for something with a full skirt (71mm).
Asso pistons are good and don't break the bank. AF use them in a lot of thier kits.
arent the inlets cut though?
The pistons for piston ported barrels such as the standard iron SIL or the Rapido series aren't cut. However you can have the inlet skirt raised a few mm on request.
Re: Thin ring/quality piston options for standard GP/200dl?
Posted: Mon Jun 04, 2012 11:51 pm
by soosh
Does it have to be a thin ring?
Re: Thin ring/quality piston options for standard GP/200dl?
Posted: Tue Jun 05, 2012 1:13 am
by vegansydney
soosh wrote:Does it have to be a thin ring?
Preferably, but I will consider other quality options. What do you have in mind? Thanks.
Re: Thin ring/quality piston options for standard GP/200dl?
Posted: Tue Jun 05, 2012 9:11 am
by soosh
I've been using a Mahle which was recommended by the person who did my barrel.I run it on the two top rings only.My piston had been modified/cleaned up but yours is std spec anyway so will be fine.My 1st piston covered approx 8k before I replaced as I stripped the motor.It's still a good spare.
Re: Thin ring/quality piston options for standard GP/200dl?
Posted: Tue Jun 05, 2012 9:21 am
by goldeneye
same. running a Mahle piston with just the top 2 rings in my cleaned up indian 200 barrel. no problems, runs a 30mm carb and clubman exhaust.
Re: Thin ring/quality piston options for standard GP/200dl?
Posted: Tue Jun 05, 2012 10:44 am
by mickdale
soosh wrote:I've been using a Mahle which was recommended by the person who did my barrel.I run it on the two top rings only.My piston had been modified/cleaned up but yours is std spec anyway so will be fine.My 1st piston covered approx 8k before I replaced as I stripped the motor.It's still a good spare.
thanks for the info soosh - 8k cant be bad and they are only 30 quid or so from scooter restorations
Re: Thin ring/quality piston options for standard GP/200dl?
Posted: Tue Jun 05, 2012 8:56 pm
by soosh
I'll dig out the clearance that was recommend as there are different grades of piston,I'm sure there was a + size on the std 66mm piston.