UAS karting

gokartmozart · June 4th, 2016, 03:43 PM

anyone familiar with Ultimate All Stars ? it's a karting organization/class that race karts with motorcycle engines. did a little open class racing at a local track running an xr100r , sad to say 100 cc's is far too small , even though my kart was capable of 65 mph (with off road gearing) still way too small and under horsepowered . love to hear from others who may know more about it than myself.

CC Cowboy · June 4th, 2016, 04:12 PM

I remember karts running Yamaha 250 engines at Daytona. They have even run double 250s. Seriously fast karts.

JohnnyBravo · June 10th, 2016, 10:12 PM

Searching YouTube

Sounds cool

jkv45 · June 13th, 2016, 06:47 AM

I raced karts with Yamaha 100cc engines, which was the standard for many years. Not a lot of power, but you don't slow much for corners. Top speed on a small sprint track was around 60. Max speed on a huge track was around 90.

The same engine in a chassis designed for high speed ("enduro") would add another 15 mph or more.

Briggs engines also had a huge following in sprint racing at that time.

"Shifter" karts were the fastest. 125cc water-cooled 6-speed 2-stroke dirt bike engines were really fast on the bigger tracks, but were too much work on a small track, so the Yamahas or Euro engines with centrifugal clutches were usually faster. The fastest shifter karts were 250cc water-cooled 2-stroke twins, usually Rotax engines. Top speeds were around 150+ I believe. They ran only larger road courses.

You probably won't find a place where you can complete with just any set-up. Where I raced there were no "run what ya brung" classes, and a XR100 wouldn't have worked well.

If you want to race competitively you will need to go to some races and see what is winning, then look for a similar used set-up for sale.

gokartmozart · June 14th, 2016, 06:37 PM

should be fast enough for our local track .,.,they have an open / run whacha-brung class

Alex · July 2nd, 2016, 11:39 AM

Is it up and running?

June 4th, 2016, 03:43 PM	#1
gokartmozart gokartmozart Name: randy Location: land of corrupt govt-illinois Join Date: Nov 2015 Motorcycle(s): 250 ninja ,it's realy a ninja motor on a scratch built alum chassis (avatar is my old kart) Posts: 22	UAS karting anyone familiar with Ultimate All Stars ? it's a karting organization/class that race karts with motorcycle engines. did a little open class racing at a local track running an xr100r , sad to say 100 cc's is far too small , even though my kart was capable of 65 mph (with off road gearing) still way too small and under horsepowered . love to hear from others who may know more about it than myself. __________________________________________________ Will legalized marijuana remove roadrash scars ?
	1 out of 1 members found this post helpful.

June 4th, 2016, 04:12 PM	#2
CC Cowboy ninjette.org certified postwhore Name: Whodat Location: Ware Is.,MA Join Date: Jan 2009 Motorcycle(s): I pass the wind! Posts: A lot. MOTM - Mar '13, Jun '14	I remember karts running Yamaha 250 engines at Daytona. They have even run double 250s. Seriously fast karts. __________________________________________________ If everything seems under control; you're just not going fast enough!

June 10th, 2016, 10:12 PM	#3
JohnnyBravo Certifiable nontundrum Name: Harper Location: NC Milkshake stand Join Date: Mar 2013 Motorcycle(s): 2013 SE NINJA 300 Posts: Too much. MOTM - Sep '13, Sep '16	Searching YouTube Sounds cool __________________________________________________

June 13th, 2016, 06:47 AM	#4
jkv45 Rev Limiter Name: Jay Location: WI Join Date: Jul 2013 Motorcycle(s): '06 SV650n, '00 Derbi GPR, '64 CA77 Dream 305, '70 CL450 Scrambler, numerous dirt bikes Posts: A lot. MOTM - Jun '18, Oct '16	I raced karts with Yamaha 100cc engines, which was the standard for many years. Not a lot of power, but you don't slow much for corners. Top speed on a small sprint track was around 60. Max speed on a huge track was around 90. The same engine in a chassis designed for high speed ("enduro") would add another 15 mph or more. Briggs engines also had a huge following in sprint racing at that time. "Shifter" karts were the fastest. 125cc water-cooled 6-speed 2-stroke dirt bike engines were really fast on the bigger tracks, but were too much work on a small track, so the Yamahas or Euro engines with centrifugal clutches were usually faster. The fastest shifter karts were 250cc water-cooled 2-stroke twins, usually Rotax engines. Top speeds were around 150+ I believe. They ran only larger road courses. You probably won't find a place where you can complete with just any set-up. Where I raced there were no "run what ya brung" classes, and a XR100 wouldn't have worked well. If you want to race competitively you will need to go to some races and see what is winning, then look for a similar used set-up for sale. Last futzed with by jkv45; June 15th, 2016 at 06:37 AM. Reason: typo

July 2nd, 2016, 11:39 AM	#6
Alex ninjette.org dude Name: 1 guess :-) Location: SF Bay Area Join Date: Jun 2008 Motorcycle(s): '13 Ninja 300 (white, the fastest color!), '13 R1200RT, '14 CRF250L, '12 TT-R125LE Posts: Too much. Blog Entries: 7	Is it up and running? __________________________________________________ Montgomery Street Motorcycle Club / cal24.com / crf250l.org / ninjette.org ninjette.org Terms of Service Shopping for motorcycle parts or equipment? Come here first. The friendliest Ninja 250R/300/400 forum on the internet! (especially Unregistered)

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