UK Karting - Notice Board (2-Stroke Karting) : Re: So you are looking for a faster motor ...

Notice Board (2-Stroke Karting)

Re: So you are looking for a faster motor ...
Posted by 'JonWright' on 11 Jun 2009 @ 11:42

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JonWrightJoined: February 2009
Total Posts: 2
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Maybe I'm being naive...but -
I thought the honest and decent licenced Rotax FR125 rebuilders could and would only put an engine together made of standard unmodified parts with standard unmodified gaskets so could not adjust squish UNLESS he selected parts with particular dimensions to give a particular result????
Hence the term FICHE (bring selected standard parts together in the best way to combine manufacturing tolerances to come as close to the ideal as possible)
and not BLUEPRINT (adjust to optimal manufacturing spec using methods including machining)
or TUNE (Go beyond manufacturing spec tolerance with machining, materials upgrade etc to get best result for the specific application you need)
In any case, IMHO the squish of the FR125 (over 1mm)is so far away from anything like a real performance 125cc engine tolerance (0.4 to 0.6mm depending on stroke, revs and quality of kit)that this was not the main improvement to focus on?
If I'm wrong, and its OK to use gaskets of varying thickness, please tell me as I must be missing a trick here !

Message Thread:

snr rotax 09 motor by 'shakey' (08 Jun 2009 @ 20:10)

Re: snr rotax 09 motor by 'Bonkers' (08 Jun 2009 @ 21:30)

Re: snr rotax 09 motor by 'shakey' (08 Jun 2009 @ 22:10)

Re: snr rotax 09 motor by 'rotaxvet' (08 Jun 2009 @ 22:19)

Re: snr rotax 09 motor by 'BrerKanin' (09 Jun 2009 @ 2:30)

Re: snr rotax 09 motor by 'BrerKanin' (09 Jun 2009 @ 2:33)

you are optomistic if ... by 'Chad' (09 Jun 2009 @ 3:37)

Re: you are optomistic if ... by 'BanzaiBoy' (09 Jun 2009 @ 11:07)

Re: you are optomistic if ... by 'BrianP' (09 Jun 2009 @ 14:41)

Re: you are optomistic if ... by 'MattScott' (09 Jun 2009 @ 15:55)

Re: you are optomistic if ... by 'BrianP' (09 Jun 2009 @ 16:01)

Re: you are optomistic if ... by 'Outlaw' (09 Jun 2009 @ 16:03)

Re: you are optomistic if ... by 'shakey' (09 Jun 2009 @ 17:47)

So you are looking for a faster motor ... by 'Chad' (09 Jun 2009 @ 23:30)

Re: So you are looking for a faster motor ... by 'BanzaiBoy' (10 Jun 2009 @ 23:12)

Re: So you are looking for a faster motor ... by 'BrianP' (11 Jun 2009 @ 9:04)

Re: So you are looking for a faster motor ... by 'JonWright' << You are here!

'Jon Wright' by 'sinky' (11 Jun 2009 @ 11:55)

Re: 'Jon Wright' by 'JonWright' (11 Jun 2009 @ 15:37)

Re: So you are looking for a faster motor ... by 'BrianP' (11 Jun 2009 @ 16:52)

Re: So you are looking for a faster motor ... by 'gettingquicker' (11 Jun 2009 @ 20:17)

Re: So you are looking for a faster motor ... by 'BrianP' (11 Jun 2009 @ 20:46)

Re: So you are looking for a faster motor ... by 'gettingquicker' (11 Jun 2009 @ 21:03)

yes,... but ... by 'Chad' (12 Jun 2009 @ 1:41)

hence selected parts and �� by 'iant' (12 Jun 2009 @ 16:13)

What Makes the 2009 barrel so good!! by 'paulhix' (19 Jul 2009 @ 17:49)

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