On-road BL project - Page 9 - RC-Monster Forums

neweuser · 11.03.2006, 11:54 AM

No, I did have issues using RPM rims, but not with the Agitator rims(i think this is what they are). I didn't have to shave anything or use a grub screw. I had the grub screws ready as I heard this before, but I still use the stockers back there.

BrianG · 11.03.2006, 12:19 PM

Actually, I was talking about the RPM arms. :)

The RPM stuff is thicker and the rear inside rim would rub on the cap screw. Even with a grub screw, there is very little clearance between the axle hub and the rim...

Procharged5.0 · 12.11.2006, 06:16 PM

That is an awesome set-up. Makes me want to build one too!

Post videos of it in action if you get the chance!

BrianG · 12.11.2006, 06:30 PM

Thanks! The conversion was by far the easiest of the three I've done. Everything just came out right the first time around. Unfortunately, I don't have access to a means to record video.

A couple weekends back, there was a Nitro Jato around and it seemed to handle quite a bit better than mine. I think that is because there is more weight on the rear end on the Nitro version. So, I installed the battery box rear skid and put some large washers in it. Seems to handle better, but the only local track within 1/2 hour is muddy so I haven't tried it out there. Like I said, I layed it out for on-road use to avoid wheelies so it makes sense.

I'm thinking of re-doing the battery area and seeing if I can't fit 4s lipo in there. That calculates to ~80mph. Of course, it won't be that high, but it should beat any Nitro Jato around here. Hmm, maybe for motor lengevity, I might just use 3s. :dft003:

Procharged5.0 · 12.11.2006, 06:33 PM

If You Get It Running Close To 80 I May Just Have To Drive Over And Play Cameraman For The Speed Runs!

BrianG · 12.11.2006, 06:47 PM

OK! I'll keep that in mind. I just have to find a place big enough! Honestly, I highly doubt it will get anywhere close due to friction and wind resistance. Not to mention trying to keep it from lifting off the ground!

Procharged5.0 · 12.11.2006, 06:50 PM

You'll have to create the first "aero" Jato body!

Maybe we could tweak a proline Dodge Intrepid Stockcar body (or brand of your choice) for the speed runs. Build in "aero-flaps" and use other aero tuning tricks. I'd be up for that! The fastest JATO!

BrianG · 12.11.2006, 06:54 PM

OK! It'll have to wait until my buggy is finished though. Then, I also want to get the aluminum steering parts because there is too much slop IMO. Then, maybe the optional 7075 chassis. I'll also need to get new on-road tires and have them duct taped and perfectly balanced.

My poor 4600 won't last very long at that speed. It should definitely turn a few heads though!

Procharged5.0 · 12.11.2006, 07:00 PM

We'll strap an icepack on the motor and duct air to the esc & motor if possible.

It would be a lot of for to see how fast we could push it!

BrianG · 12.12.2006, 12:14 AM

Well, that was dumb. I got home from work and said "what the heck" and tried the Jato on 14 cells. Well, the first 50 feet or so was extremely fast and then the rear tires blew. Actually, the rim shattered which took the tire with it. Maybe it already had a hairline crack, I don't know. All I do know is that the potential speed was scary! Lesson learned here is that a perfectly balanced tire on very strong rims is a must.

I put some other spare tires I had laying around and ran it back on 2s and everything still works, so I'm OK there...

Procharged5.0 · 12.12.2006, 10:50 AM

Quote:

Originally Posted by BrianG

Well, that was dumb. I got home from work and said "what the heck" and tried the Jato on 14 cells. Well, the first 50 feet or so was extremely fast and then the rear tires blew. Actually, the rim shattered which took the tire with it. Maybe it already had a hairline crack, I don't know. All I do know is that the potential speed was scary! Lesson learned here is that a perfectly balanced tire on very strong rims is a must.

I put some other spare tires I had laying around and ran it back on 2s and everything still works, so I'm OK there...

Any pictures of the carnage??????

BrianG · 12.12.2006, 04:02 PM

No, no pictures, sorry. Not much to see really; the wheel and tire is torn up pretty good. Aside from that, not too much damage. Scratched up a brand new body, but that's OK. When the tire blew, the Jato did some crazy fishtail thing for a microsecond before flipping over and cartwheeling a couple times before landing on the wheels and spinning around several more times. It could have been a lot worse!

crazyjr · 12.12.2006, 01:46 AM

Hey BrianG, 14 cells don't hold a candle to a 3s. I have just run the T4 with it and a 5700, its insane

BrianG · 12.12.2006, 01:55 AM

Well, the 4600 on ~17v is insane enough for me! It's making me think seriously about getting the proper tires, a 4s lipo pack, and then challenging just about any Jato out there. How the heck do you keep the tires from ballooning? I know the duct tape thing, but there's no way it could handle that kind of centrifugal force. I almost need a solid tire, or tires that have steel belts in them.

MetalMan · 12.12.2006, 01:56 AM

Foam tires?