My SR1 build

[Wild Earp]

My car started out as a 06 Rhino. Played with it in the desert with the stock 2 seat cage and mid travel suspension for a while, then tore it down and had SDR Motorsports build it up as a racer. Was done as a dual sport, so I could race it both shortcourse or desert.




Got tired of dumping money into a 50 HP single cylinder motor, that is bound to blow eventually, and decided to build a SR1 racer using the Yamaha 1000cc R1 motor.

And this is my build thread...

Got the word that my SR1 kit will arriving from Wellers soon, so in anticipation Ive been doing a little work to get ready. Ive laid out the frame rails in tape, so i can estimate the location of the motor, to attempt to figure out any possible clearance issues before hefting that motor into the car.

Looks like there may be some interference with the clutch linkage, with one of the tubes in my cage. Its going to be close, but Im hoping removing the little cover to protect the clutch when you lay the bike down, will give me the space I need. Otherwise i will need to notch the tube.

Headers arrived Wenesday, and fit great. i will be moving the SR1 kits drivers side plate towards the driver a little, to make room for the headers, and also move the shifter closer to me. Should be a pretty easy modification, and will allow me to run a off the shelf header without modifications to the primaries.



Speaking of headers, they are a step tube design, with 4 into 2 into 1 collector. I will be ceramic coating them and wrapping them after mockup, and having a o2 sensor bung installed.

Note to 04-06 R1 buyers, there is a recall on the Throttle body upper Throttle position sensor for all 04s and some 05s. So check the R1 forums to make sure yours has been fixed. I have the old one on my primary throttle body, but luckily ended up with a spare throttle body that has the new sensor. Good thing as its $105 from the dealer.



Chassis is tore down to just about nothing, and the pan is now cut out ready for the SR1 kit. The last of the parts I need are trickling in daily, and I should have just about everything to have this thing running by next week. (Cross my fingers).

Decided to not go with Gear One centerboard hubs, and instead use Wellers uprights, with Brembo brakes at the wheels (instead of the diff mounted brake standard with my 06). This will also add 4" to the width of the rear, adding some needed stability for sliding the car around the turns.

But, then I went down to Brembo to pick up my brakes, and found out they never actually produced any Rhino rear brake kits. Waiting to hear from the owner wether or not they will be able to work something up for me..

[450grl]

Well, worst case scenario, you can always run the three brake setup that I am running - it locks up the wheels just fine, and will save you some $$. Brembos are B.A., though...so....hopefully they have something for you!!

[Wild Earp]

Originally Posted by 450grl

Well, worst case scenario, you can always run the three brake setup that I am running - it locks up the wheels just fine, and will save you some $$. Brembos are B.A., though...so....hopefully they have something for you!!

Yep, looks like thats what Im going to end up doing.

Parts showed up today. Because of some last minute changes, more will be coming next week. Hopefully have it in the car by the end of next week.

[racer56]

Did you go down to QTM for your brembo parts?

http://www.qtmi.com/UTVapps.html

[JoeyD23]

keep it comin Ben!!!!

[Wild Earp]

Originally Posted by racer56

Did you go down to QTM for your brembo parts?

http://www.qtmi.com/UTVapps.html

Yes, I did. No luck there.

[Wild Earp]

Made a little progress, layed everthing out on the floor, prior to putting it all in the car, to take some measurements. Looks like everything is going to fit better than I even expected.







Even looks like Im going to be able to run the drivers side motor mount with only a notch cutout, in the standard location, AND still run the over the counter headers. I will post pictures and measurements, so others can also do this mod and run this header. I know the thought of the cost and time to have a custom set of headers made was weighing heavily on my mind when I was deciding to do the kit or not.

[Wild Earp]

Well, the R1 is in! Weller did a great job with this kit, and made it remarkably easy to install. I normally let SDR Motorsports do all the heavy lifting with welding and fab work on the car, but after mocking it up on the floor, I decided it looked easy enough to tackle myself. Started at 4 on Friday, expecting to devote a good portion of the weekend to it, but by 9 pm on Friday, it was in, with most of the brackets fully welded, and the cross members tacked it. I couldnt believe it. 5 hours start to finish by myself, and it was in! Thanks again to the Wellers for a great kit. A grinder and a welder were all that was needed.









I only had to cut out one tube, which I was wanting to redo anyways eventually. All the Weller parts were perfect, and the measurements/instructions Jason supplied made it a breeze. I was planning on notching the drivers side plate/motor mount to clear my headers, but after discovering that the location of the shifter was wrong for my center console anyways, I ended up just cutting off the front half of the plate completely. The header should fit easily now, and I will make a mount for the stock shifter on the center console tubing using the part I cut off the motor mount.

Now its time for wiring and plumbing!

[450grl]

Looks awesome Ben!!!

[07FJRog]

great work so far Ben.