Author Topic: Trx 150 r (Read 13847 times)

Iceracer · « **on:** February 25, 2014, 02:26:28 PM »

Figured I would show what I've been working on as of late. This started as a spare machine for my friends boy who races Xc kind of.... then the other one converted from dirt bikes and the last one is riding both.
Take one long travel trx 90

add one crf150r engine

end up with horrible chain line due to engine position

and no room for a real radiator due to chassis limitations.

So I am designing a new chassis around the engine so the fuel tank will clear the head and I can remove the valve cover for maintenance.
This is the actual render of where Im at rite now. I have to bend up some conduit so I can be sure everything clears correctly but It looks pretty good from the dimensions.

Frame will be all hand bent 1" 4130 tube, not sure on gauge yet but leaning towards .065 to keep weight down since Its for my girl friend now. Will probably be a no link rear, and undecided on the front end at this point but probably trx 450 front a-arms with 300ex spindles, hubs etc since I have all that laying around. Could end up with YFZ 450 front components though.

Ill to this thread add as I make progress.

jcs003 · « **Reply #1 on:** February 25, 2014, 03:15:04 PM »

cool project!

john

Iceracer · « **Reply #2 on:** March 03, 2014, 04:11:35 PM »

Well here goes attempt # 1, half way through I realized I shorted myself @ 1" to be able to grab the next bend..... So I had to pull the tube remark from the opposite end and start in from that side.
This was the first time with this bender its a Woodward Fab unit, I recommend going with a little higher quality unit. It works and Is ok but the dies are not as nice as some others I have used. Over the summer Ill geek it out with air push and a Digital bend indicator as well as a better rotation unit. That really speeds up how fast you can bend a complicated piece. I have to get the engine and lower part all situated before I can finalize the upper tubes.

end result after tweaking top two bends of the tube, acceptable. Time to make the easy pieces....... lol Note to self re configure top two bends into one bend if possible.

fx4pitrone · « **Reply #3 on:** March 03, 2014, 09:22:49 PM »

Damn Carl! You always have something cool goin on!

patman13mia · « **Reply #4 on:** March 04, 2014, 08:21:13 AM »

dang thats cool!!

Iceracer · « **Reply #5 on:** March 04, 2014, 03:52:09 PM »

I try..... keeps me from getting bored, my problem is I border on the the obscure.

jcs003 · « **Reply #6 on:** March 04, 2014, 04:46:53 PM »

coming along i see.

nice to see kennedy boxes back there.

john

Iceracer · « **Reply #7 on:** March 05, 2014, 12:17:22 PM »

Just tweaking the drawing now, waiting on some tube to get here. Have to decide what axle to use has a kart axle now but one wheel hub is loose and there a weird pattern if I could get blank hubs I'll consider keeping it for now. Getting really close to liking the layout . Just don't like the tank engine carb issue.
I'd like to move the fuel bung in the tank not sure how that will work out though.

Dezsled · « **Reply #8 on:** March 07, 2014, 11:34:35 AM »

Cool stuff

JasonB · « **Reply #9 on:** March 07, 2014, 04:16:11 PM »

interesting project! i like watching stuff people fab up on their own

jcs003 · « **Reply #10 on:** March 07, 2014, 04:23:36 PM »

what kind of power does that 150r put out?

john

Iceracer · « **Reply #11 on:** March 07, 2014, 07:15:58 PM »

Depends who you talk to I believe rite @ 22 HP. But I'll take it to the dyno at some point. This eng is pretty much stock except for a hot cam as for as I know. All this one is meant for is a play bike in the woods with my buddies boys who race. Be a little to learn and iron out I'm sure.

dirtyd · « **Reply #12 on:** March 10, 2014, 06:11:22 PM »

Just seen in the current Dirtwheels that had a Raptor 250 chasis with crf150 engine.

Iceracer · « **Reply #13 on:** March 11, 2014, 02:54:00 PM »

Ya I heard about that. Good Idea, I cant believe Yamaha isn't putting the liquid WR 125 engine in them already.

Made a little progress last night. The tubing showed up so I went rite after it, got the lower rail and upper a- arm tubes bent and mocked up. I need more magnets....

Iceracer · « **Reply #14 on:** March 13, 2014, 01:15:57 PM »

should be ready to weld by the weekend, not that Ill be able to get to the welding shop, but I will be ready for the fist nice sunny day. Have to rely on solar heat rite now, Dark steel roof and mother nature do a pretty good job when the sun shines.