UK Karting - Notice Board (2-Stroke Karting) : Re: Most tilly's I ever ran........

Notice Board (2-Stroke Karting)

Re: Most tilly's I ever ran........
Posted by 'QuickOldTimer' on 03 Nov 2008 @ 17:46

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QuickOldTimerJoined: April 2005
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Although modern digital computerised inertia dyno's are probably a smidgeon more accurate than the old water brake heenan and froud dpx0, that has nothing to do with my views on this. It started with the saetta v11, then the Parilla ba13, tg14, gp15 etc back then everybody was aware that the factory named them after the claimed power output. Its obvious now that it was all bull, but back then, how could an honest tuner tell a customer who'd just paid him Ł75 (around Ł400 in todays terms) for tuning, that the engine was delivering less power than when it left the factory. Hence the fiddle factor was introduced. Basically I believe that there was a lot of "creativity" in the tuning business then. I remember an article in Karting mag around 1971, when Paul fletcher revealed the dyno graph of the parilla that he'd finsihed 3rd in the world championship with. I seem to recall max power as 14.5bhp! Back then, we were still using the 12 roller big end bearings that had a very short life, I honestly doubt that anybody was revving their engines above 15000 for a long stroke motor, and 16000 for a short stroke. I personally believe that you have to go forward in time to the post 15 roller big ends and the invention of the "N" ports/dartways before you would find anything that would have given a BT82 Extreme a significant beating. In the early/ mid 70's the standard gearing at Rye was 9:74 for a short stroke motor, which is the equivalent of 10:82. On the much longer faster Rye of today a TKM Ext runs around 10:86.......

Message Thread:

hewland arrow by 'marcy' (03 Nov 2008 @ 10:22)

Re: hewland arrow by 'raceinstructor' (03 Nov 2008 @ 10:30)

Re: hewland arrow by 'marcy' (03 Nov 2008 @ 10:35)

Re: hewland arrow by 'raceinstructor' (03 Nov 2008 @ 10:45)

Re: hewland arrow by 'marcy' (03 Nov 2008 @ 10:46)

tkm carb settings by 'marcy' (03 Nov 2008 @ 10:58)

Re: tkm carb settings by 'itpro' (03 Nov 2008 @ 12:12)

Re: tkm carb settings by 'marcy' (03 Nov 2008 @ 18:32)

Re: tkm carb settings by 'marcy' (03 Nov 2008 @ 19:58)

Re: hewland arrow by 'SteveC' (03 Nov 2008 @ 11:26)

Re: hewland arrow by 'marcy' (03 Nov 2008 @ 12:05)

Re: hewland arrow by 'QuickOldTimer' (03 Nov 2008 @ 12:28)

Most tilly's I ever ran........ by 'SteveC' (03 Nov 2008 @ 12:35)

Re: Most tilly's I ever ran........ by 'itpro' (03 Nov 2008 @ 13:45)

It'll be interesting to see how fast it goes! by 'SteveC' (03 Nov 2008 @ 13:51)

Re: Most tilly's I ever ran........ by 'DavyBoy' (03 Nov 2008 @ 14:00)

I never had any trouble. by 'SteveC' (03 Nov 2008 @ 14:20)

Re: Most tilly's I ever ran........ by 'QuickOldTimer' (03 Nov 2008 @ 14:27)

Re: Most tilly's I ever ran........ by 'itpro' (03 Nov 2008 @ 16:30)

Re: Most tilly's I ever ran........ by 'RevvedUp' (03 Nov 2008 @ 17:36)

Re: Most tilly's I ever ran........ by 'QuickOldTimer' << You are here!

Re: hewland arrow by 'marcy' (03 Nov 2008 @ 19:42)

Re: hewland arrow by 'DavyBoy' (03 Nov 2008 @ 21:20)

Re: hewland arrow by 'MickPritchard' (03 Nov 2008 @ 21:55)

Re: hewland arrow by 'marcy' (03 Nov 2008 @ 23:00)

Re: hewland arrow by 'itpro' (04 Nov 2008 @ 1:50)

Re: hewland arrow by 'marcy' (04 Nov 2008 @ 8:51)

Re: hewland arrow by 'MickPritchard' (04 Nov 2008 @ 9:06)

Re: hewland arrow by 'marcy' (04 Nov 2008 @ 9:21)

Re: hewland arrow by 'marcy' (04 Nov 2008 @ 9:44)

OK Marcy... here's the situation by 'DavyBoy' (04 Nov 2008 @ 19:47)

Re: OK Marcy... here's the situation by 'gyfto1' (04 Nov 2008 @ 21:22)

Re: OK Marcy... here's the situation by 'marcy' (04 Nov 2008 @ 23:35)

Re: hewland arrow by 'marcy' (16 Nov 2008 @ 19:44)

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