Scooterotica

not much to say about it apart from fantastic good job mate, also nice paint job too

I agree..thats looking fantastic wayne..
and with those port timings its going to be a wild beast...powerfull no doubt but maybe a bit peaky..

That looks so good.
The exhaust timing sounds a little big, But if you can keep the engine together with the power that you should get, that will be be so much fun.

When the powervalve is closed the ex drops to around 140, I cant remeber exactly but its about that I have some scribblings somewhere

I totaly forgot about the powervalve, a few yam riders are using the old type from the LC, TZ, TZR models as these can be reprogramed\ remapped.

This is a link to the TZR forum, It gets a bit geekish but could be of interest

http://tzr250.com/forums/index.php/topic,753.0.html
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It would be nice if one of the dealers gave you a free run on a dyno.

tzr.steve wrote:I totaly forgot about the powervalve, a few yam riders are using the old type from the LC, TZ, TZR models as these can be reprogramed\ remapped.

This is a link to the TZR forum, It gets a bit geekish but could be of interest

http://tzr250.com/forums/index.php/topic,753.0.html
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It would be nice if one of the dealers gave you a free run on a dyno.

I already have a mappable powervalve control unit from a company in Chzechoslwackywickvia (Ignitech) or however you spell it. With this unit paired to an old RD350LC powervalve servo I can configure the powervalve to open and close when ever I want, It even has a TPS (Throttle Position Sensor) that I am looking into wiring up too.

I also have a mate with a dyno but I doubt it will be available for free but I should get a fair amount of time on it

Thanks for the link I'll take a look at it later tonight, ps Ive just dropped it off to have the exhaust made but its going to be about a fortnight to do as the guys @ TDR are quite busy (Some of there dyno charts look quite impressive, they look like table top mountain )

Wayne - I run an Ignitech PV controller on my engine. If you need some set-up help then let me know. It works really well.

Speed Demon wrote:Wayne - I run an Ignitech PV controller on my engine. If you need some set-up help then let me know. It works really well.

Yes mate I wouldnt mind some help, Ive looked at the software and it seems easy enough to use. I havent got a TPS as yet but Im thinking of getting a KX250 Carb so that I can use this function. I had planned on having the powervalve opening at around 7000rpm and fully opened by around 9000rpm what do you think?

Just got the pipe back from TDR. Thanks Mr G and Twin for the pointer

pics are on there site here

and also here . . .




and before anyone takes the p155, yes I know the tyres on back to front

thats well smart 10/10 to the TDR guys