KRX race cars

mtntoy

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So I posted a couple pics in the Kawasaki UTV thread. I figured I'll post a few build pics and some info for anyone curious.

We're building three KRX 1000s to compete in Best in the Desert, our first race will be Vegas to Reno.
 

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mtntoy

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Our plan is to build these cars with a "minimal" budget but still make them competitive. We'll be running them in the Pro Production class.
So we started with CageWrx cages, modified them a little and added door bars.
 

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slvrbullet

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Any plans to beef up the spindles? I look forward to following this build as I have been keeping an eye on the KRX for my next build.
 

mtntoy

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As far as the spindles, the only thing we've heard about them is they break do to the steering stops. Have you heard something different? We're running limit straps on the car and we're going to modify the two stage steering stops to stop the binding issue.
 

Olson04

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Cant wait to see the final product. Pumped to see how the kawi does in a race. And for the spinldles I have also seen on a you tube video u just need to take a grinder and flatten the edge so at full lock the spindle doesnt hit. If you dont grind the 2 nubs flat when you get full lock the spindle just makes contact and then thats when the spindle will break. The video is in one of the kawi reviews.
 

Lucho

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BRING THEM TO US...

We are getting closer to the date for our JULY 25, 2020 – PURE “240” Cal-City event.
It is an tremendous race course, that will give you a great variety of terrain.
Here is the visual link to fly over our proposed race course: -
The entire course is laid out on Kern County "unmaintained" roads, streets, Blvds., easements, and grandfathered "trails." - YOU MUST HAVE A GPS that will accept the course file. We use minimal course markings.
Also attached is the flyer and entry form & (FUTVI membership app. if you need it). Please send it in to get on the list.
Actual racecourse GPS files and map will be sent to all who have entered on Thursday, July 23, at 7 p.m.
So you still have time to sign up until Thursday at 6 p.m.
Pre-running: Saturday, July 25, from 6 a.m. to 12 Noon
Check-in & Tech, On race day from 3 p.m. to 5 p.m. (Safety Tech only.)
Virtual Racers & Navigator meeting from 5 p.m. to 5:30 p.m.
Staging Opens at 5:40 p.m.
Staging closes at 5:50 p.m.
START OF THE RACE AT 6 P.M. – ONE CAR EVERY 30 SECONDS
Number of Laps required = 6 LAPS within the 240-MINUTE time table.
Racecourse is almost 30 miles long.
Course rating = 6.8 (10 = Freeway) – Yeah on the fast side.
Hope to see you soon.
Lois and Lou
P.S. - Oh, yes, you are welcomed to "share" this information with others. Thanks. LP
P.P.S - Required Social Distancing, face protection and other Co-vid-19 requirements, HIGHLY RECOMMENDED and used.
visit: www.averacing.com
 

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mtntoy

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16530EF5-DD77-4A24-A237-19093BC5AB8C.jpeg
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The cars are coming along good. We have one car done and have put a few test miles on it. It’s impressive how well the stock suspension works on these cars. The other two cars should be driving next week.
 

sand shark

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Very nice and glad to see someone building a desert racer for the pro production class that is not a RZR. What are you guys doing to get more top speed?
 

mtntoy

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We're still testing the cars and working on the top speed issue. We can't give all our secrets away though......at least not yet.
 

mtntoy

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So we were really on the fence with fuel cell placement, I'm sure they would have handled better with it under the seats. The cars do feel a little top heavy with a full tank but still really driveable. Our plan is to make kits to get the cars closer to the 80" width limit and we figured the $3500ish difference in the fuel cell cost would be better spent on the suspension.
 

mtntoy

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Cant wait to see the final product. Pumped to see how the kawi does in a race. And for the spinldles I have also seen on a you tube video u just need to take a grinder and flatten the edge so at full lock the spindle doesnt hit. If you dont grind the 2 nubs flat when you get full lock the spindle just makes contact and then thats when the spindle will break. The video is in one of the kawi reviews.

Kawasaki is offering kits to correct the issue as well. We have all three cars on the list to get the replacement parts from them.
 

Olson04

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Nice. They look really good. Hope they do well. I cant wait to hear how they performed post race if u feel like letting us know. I really wanna buy a new kawi and cant wait to hear what parts lasted and what parts fail if any. Good luck
 

mtntoy

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So far we've got over 300 miles on one of the cars testing and we're really impressed with them. The only thing We've seen so far is the rear radius rods have a tiny bit of play in them. But we have been running the car pretty hard out testing. They definitely aren't the fastest cars but they are one of the toughest cars, and the stock suspension is impressive.
 

novaman64

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How much gas does the fuel cell hold? I am really on the fence about spending the $4k for the Speed cell on my XX or doing soemthing similar to what you did on this KRX.

It looks great!
 

mtntoy

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So we made it to Vegas to Reno with all three cars. Two of the cars finished with very minimal issues, 12th and 16th. We had some heat issues with the fuel, and lost some time with that and we had a little trouble with belt temp. We weren't able to get the clutching as dialed as we would have hoped before the race. The third car broke a steering knuckle at RM 23, the car was going straight and hit a small rock with the right front tire. Not enough of an impact to hurt the wheel or tire but the knuckle broke at the lower ball joint. I can't say we were surprised, the car had almost 450 very rough test miles on it. We are on the wait list for the updated parts from Kawasaki but weren't able to get the parts before the race.
I'm still very impressed with how well the cars held up. The only "issues" we've seen so far with the cars is the upper radius rods seem to get play in them around 400 miles of abuse, the hub carrier bushing that connect the hub carrier to the trailing arm had to be replaced with delrin before the race on the two higher mileage cars and the motor/trans mount bushings are way to soft for racing/hard driving applications.
We are working on getting polyurethane motor/trans mounts made as well as having delrin bushings made for the hub carriers.
Now that the big race is over we're planning to get some of the custom parts we made for the race cars into production.
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