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Old February 22nd, 2010, 08:16 AM   #1
89cjwftw
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Start if the Shifter Kart build/Pic up

Well, i bought a decent frame, and has every thing but the motor, sprockets, clutch, just some ins and out, any suggestions appretiated, and would like to POSSIBLY get some more tube work added to the frame on the side so its a little more stable, here is a pic of what i have to start with


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Old February 23rd, 2010, 10:16 PM   #2
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Old February 24th, 2010, 06:29 AM   #3
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anyone have any info...
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Old February 28th, 2010, 09:16 AM   #4
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Old March 1st, 2010, 11:46 AM   #5
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Old March 1st, 2010, 11:53 AM   #6
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I have a shifter kart, Birel Chassis, Pavesi engine/trans, before that I had a YZ 125 ....
a link to a forum http://www.ekartingnews.com/forum.php

A 125 on a good size track will do 120MPH (good racing tuned engine will be @ 45-49 hp), the kart (with out driver) will be 180-200 lbs

They are very fast, have raced since 1991 some sort of kart (did not race last year).
It is not very cheap .... that would be my #1 complaint... cost.

It takes a bit of space to run a shifter kart, if you build one think about a place to use it.
A racing frame will have about 1 1/2" ground clearence max. and the seat could be 3/4".
Think about that compared to what surface your will be driving on. It might be better to build something.

Here is a funny one ... (to name a couple) Danica & Sam Hornish both raced with our tour ... I missed Tony Stuwart by a couple years.

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Old March 1st, 2010, 12:14 PM   #7
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well i plan i taking it to the some tracks to race, is there any special modds i would have to make to make it "legal" to race, i found a frame im looking to buy hopfully today its a margay and i would like to put a 125 or 250 on it, whats the better/more fun class to race in?
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Old March 1st, 2010, 07:32 PM   #8
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a shifter uses a much heavier chassis, 4 wheel brakes are mandatory. The closest place that might still race shifters is South Bend IN. Altough they would most likely demand a chassis built for a shifter.

250CC are only raced on road course like Gratten, Gingerman, full size sports car tracks. They call it enduro or road racing. That really maybe you best bang for the buck, those are ussally less money. They will race several classes up to 250CC. Since you are in the turns less percentage there is not quite as much demand on the chassis design, possibly more on chassis set up variations. (Don't tell them I said less demand :) ) Also big track karts (Enduro) seem to be more individually designed. The short track chassis are also raced there.

Also you have dirt oval racing, there is some "outlaw" racing that sometimes allow "run what you brung", they ussally stop around 225CC maybe 250 now. The chassis are specialized for ovals nowadays. Those guys often have a pile of tires for different conditions. And often change tires throught the day.

Margay is a good chassis but they didn't make many shifter chassis and that was a few years ago.

If you want to race find a track you like before you buy, most have different rules and different engines maybe be used. They are not flexable, you usally have to run what they spec. I sapose it evolved that way to limit pocket book racing, it looks confusing to an outsider often (rules/classes). As far as the pocket book limits they have had so so success at that.

Don't get in a hurray to buy if you plan on organized racing ... do the find a track rutine above ...

Organized racing is very specific on what you can/cant do, what you use, can't use , etc..... If you win some races you get you engine back in a box, dissasembled. Think of NASCAR (lol) and it gets that picky often...

Good luck if you have any questions ask any time

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Old March 1st, 2010, 08:22 PM   #9
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there is a good "clone class" most use a Harbor Frieght motor that runs less then 150, then you must use a specific clutch & header. I don't know if any michigan tracks race these.

There is a yamaha 100CC class that has been around a long time. Often called KT-100

dirt tracks run more 4 cycle stuff

There are roughly 3 types of kart racing
Short track road course (1/4 mile to 1 mile length)
Road (Enduro) Racing, 2 to 3.5 Mile tracks (Sports car tracks)
Oval ... ussally dirt, some asphalt, 1/4 mile down to about 1/10 mile.
Small amount of winter indoor oval racing.

Really the dirt oval is the biggest participation, but if your not in that circle you here less ....
For that checkout .... bobs4cycle ... a great ... the #1 ... dirt forum....

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Old March 2nd, 2010, 11:43 AM   #10
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id like to do the road racing, do you kno if waterford hills race course does this
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Old March 3rd, 2010, 08:02 AM   #11
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I will look up some links

FYI 250cc good 2 stokes (you can run something like 450-500 if 4 stoke) can run north of 125-130 on the big tracks

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Old March 3rd, 2010, 09:23 AM   #12
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yea, im wanting to a buy a 250cc 2 stroke engine, i have a buddy with one just sitting in his shed, thinking he will sell it to me dirt cheap, then i will really have a good start :)
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Old March 3rd, 2010, 11:42 AM   #13
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Link to a 250 site, I think this is a Michigan person.

http://www.250superkarts.com/

This is the sanction body I know of for big track racing around here

http://www.championshipenduro.com/

A couple 250cc karts photos from the 250 site....




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Old March 3rd, 2010, 01:29 PM   #14
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pic is up
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Old March 3rd, 2010, 01:47 PM   #15
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what you have there is a enduro kart ...

knows as a laydown, those are only run on big tracks--road racing.

the ephassis is on straight line speed / low drag, not corner speeds. it still will be fast in the corners though. Keep in mind on large tracks the corners are not as sharp as a regular kart track. ... Although at speed they will seem sharp ... lol

with a 125cc laydown shifter your looking @ 125-130 with a good set up.

most like that are run with 100cc no gear box, air cooled., some TAG engines, not sure how many 250's you will find on that type chassis.



this is a laydown racing, they run body work nowadays



here is a 125 shifter kart, sprint type ... note: front one has kart based engine and rear one is running a bike engine. These are the type I have

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