Kart Racing Pro Official Forum

General => Suggestions and wishlist => Topic started by: cbass on December 06, 2010, 03:23:55 AM

Title: the shifter kart
Post by: 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! 
Title: Re: the shifter kart
Post by: Nick Johnston on December 06, 2010, 05:30:29 AM
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.

Title: Re: the shifter kart
Post by: PiBoSo on December 06, 2010, 09:24:25 AM
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.
Title: Re: the shifter kart
Post by: cbass on December 06, 2010, 12:46:09 PM
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.
Title: Re: the shifter kart
Post by: Shawn Campbell on December 07, 2010, 07:29:02 AM
I also agree that there is too much lag time between shifts.
Title: Re: the shifter kart
Post by: Napalm Candy on December 09, 2010, 03:01:05 PM
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,