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the shifter kart

Started by cbass, December 06, 2010, 03:23:55 AM

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cbass

Perhaps you guys want to have a second look at it.  I feel like the shifting has a little bit too much lag, more than I ever remember in the thousands of laps I ran in a shifter.  Also, perhaps look at the engine performance, the shift light on the Digitron comes on pretty early.   from what I remember, shifter karts made their pwer when you were maxing the revs, not short shifting.  When I tried to tach it out, and made a set to account for this, i was a couple seconds slower.  just something to think about! 

Nick Johnston

Quote from: cbass on December 06, 2010, 03:23:55 AM
Perhaps you guys want to have a second look at it.  I feel like the shifting has a little bit too much lag, more than I ever remember in the thousands of laps I ran in a shifter.  Also, perhaps look at the engine performance, the shift light on the Digitron comes on pretty early.   from what I remember, shifter karts made their pwer when you were maxing the revs, not short shifting.  When I tried to tach it out, and made a set to account for this, i was a couple seconds slower.  just something to think about!

You gotta remember Charlie, this is an ICC, which has a different powerband than a Moto..

A few things I would suggest..

On the mychron, change the graph where 14.5-15K rpm is on the far right so it doesnt look like you're shifting way too early..

Shifting certainly is too delayed, that needs to speed up quite a bit.


PiBoSo

Quote from: cbass on December 06, 2010, 03:23:55 AM
Perhaps you guys want to have a second look at it.  I feel like the shifting has a little bit too much lag, more than I ever remember in the thousands of laps I ran in a shifter.  Also, perhaps look at the engine performance, the shift light on the Digitron comes on pretty early.   from what I remember, shifter karts made their pwer when you were maxing the revs, not short shifting.  When I tried to tach it out, and made a set to account for this, i was a couple seconds slower.  just something to think about!

Even if the engine can rev up to 16.700 rpm, the max power is at around 14.000 rpm.

cbass

Thats my point though, from what I remember, max power was closer to redline than that.  Maybe thats not the case with an ICC though.

Shawn Campbell

I also agree that there is too much lag time between shifts.

Napalm Candy

I also have a Shifter kart, with a TM k9c engine. With a soft carburation I change in about 13.800 RPM, but in a championship with an agressive carburation they change at 14.500.

But this engine at 16700 RPM will fail for sure. And... I think it is imposible to arrive at this RPMs only with throttle,