Traijin
RCTalk Basher
- Messages
- 56
- Reaction score
- 0
- RC Driving Style
- Bashing
I recently purchased a REVO 2.5 off Ebay. I got what I paid for. 2.5 chassis with a Picco .26 Maxx. Piggy Back Shocks, aluminum A Arms, roll cage... blah blah blah. I am new to RC, but I have extensive experience with mechanical things, I served as Pitcrew for AMA Supercross and Motorcross for a few years and AMA Super Sport, Super Stock, and Super Bike for 3 years. So, I understand all the principles of suspension setup and two stroke motor tuning and adjustment. This RC will be used for "bashing" I just want to run around and have fun with it. On Saturday I stripped it down to the chassis to inventory the broken/bent parts. This activity yielded several questions I would like some help on.
1) Are there any benefits to converting from a 2.5 chassis to a 3.3 chassis? I understand the 3.3 is a bit longer, but is that dimension change reflected in the wheel base? I could see how adding an inch or so helps if the wheel base is extended. I have already priced the chassis, steering linkage, half shafts, and center brace, is there any real world benefit to control and handling?
2) The screw boss for the battery box/opti box to the lid is stripped. I need to replace the box. If I upgrade to a 3.3, is there any benefit to upgrading to the 3.3 battery box/opti drive configuration?
3) This truck's drive shafts were a mess, 3 stock plastic and 1 CVD. I have priced the Traxxas CVD's. Should I be looking at after market CVD's? What MFG?
4) When switch to CVD's do I need different sockets at the differential? On the one CVD on my truck there is a socket instead of a U Joint.
5) Currently the truck has long travel rockers installed. I do not intend to do any rock crawling, is there real benefit to that much suspension travel? One of the rocker's screw boss is stripped out. It has to be replace. I need to decide whether to stick with long travel or go to a progressive 2. Logic would lead me to longer travel equals more leverage and more breakage of parts. Is that assumption correct?
6) The push rods and turn buckles were mostly bent, I will replace them all. If I go with progressive 2 rockers, is there any reason to get lengths of the rods outside of stock? I went to the hobby store and saw many different lengths. What is the stock MM length? Is it is wise to stick with that size?
7) The truck came with a dual exhaust pipe. The header is bent and causes a restriction. This is unacceptable. Makes for bad exhaust leaks too. Anyway, I understand the principles of the pipe using reflection for compression. On a 125 or 250 cc motor this reflection was a product of two counter opposed cones of varying lengths to adjust the powerband. I am looking for mid range torque/horsepower. I prefer the energy be usable. So extreme high end or low end do not matter to me. What is a good pipe for a Picco .26 maxx for mid range torque/horsepower?
8) I just picked up dynamite medium glow plugs, does anyone else have glow plugs they prefer for a Picco 26 Maxx?
9) I enjoy Wheelies for about 30 seconds, after that I would prefer to put the power to use. For "bashing" is a center differential applicable? Or are those benefits usually only expressed at the track?
10) The truck came with a complete, but uninstalled sway bar kit. I looks easy enough to install. Are there real world benefits to controlling body roll whilst "bashing" It seems like a good idea to me. Are there any nasty trade offs after installing a sway bar kit? Fitting the body? New stress points on the suspension?
Thanks for any input. I Appreciate the help.
I look forward to building this truck this winter. I already have RPM front and rear kit on order. I look forward to shedding a pound or two from the other miscellaneous things I will shave. But I think this truck will be a lot of fun this spring.
Thanks again,
Traijin
1) Are there any benefits to converting from a 2.5 chassis to a 3.3 chassis? I understand the 3.3 is a bit longer, but is that dimension change reflected in the wheel base? I could see how adding an inch or so helps if the wheel base is extended. I have already priced the chassis, steering linkage, half shafts, and center brace, is there any real world benefit to control and handling?
2) The screw boss for the battery box/opti box to the lid is stripped. I need to replace the box. If I upgrade to a 3.3, is there any benefit to upgrading to the 3.3 battery box/opti drive configuration?
3) This truck's drive shafts were a mess, 3 stock plastic and 1 CVD. I have priced the Traxxas CVD's. Should I be looking at after market CVD's? What MFG?
4) When switch to CVD's do I need different sockets at the differential? On the one CVD on my truck there is a socket instead of a U Joint.
5) Currently the truck has long travel rockers installed. I do not intend to do any rock crawling, is there real benefit to that much suspension travel? One of the rocker's screw boss is stripped out. It has to be replace. I need to decide whether to stick with long travel or go to a progressive 2. Logic would lead me to longer travel equals more leverage and more breakage of parts. Is that assumption correct?
6) The push rods and turn buckles were mostly bent, I will replace them all. If I go with progressive 2 rockers, is there any reason to get lengths of the rods outside of stock? I went to the hobby store and saw many different lengths. What is the stock MM length? Is it is wise to stick with that size?
7) The truck came with a dual exhaust pipe. The header is bent and causes a restriction. This is unacceptable. Makes for bad exhaust leaks too. Anyway, I understand the principles of the pipe using reflection for compression. On a 125 or 250 cc motor this reflection was a product of two counter opposed cones of varying lengths to adjust the powerband. I am looking for mid range torque/horsepower. I prefer the energy be usable. So extreme high end or low end do not matter to me. What is a good pipe for a Picco .26 maxx for mid range torque/horsepower?
8) I just picked up dynamite medium glow plugs, does anyone else have glow plugs they prefer for a Picco 26 Maxx?
9) I enjoy Wheelies for about 30 seconds, after that I would prefer to put the power to use. For "bashing" is a center differential applicable? Or are those benefits usually only expressed at the track?
10) The truck came with a complete, but uninstalled sway bar kit. I looks easy enough to install. Are there real world benefits to controlling body roll whilst "bashing" It seems like a good idea to me. Are there any nasty trade offs after installing a sway bar kit? Fitting the body? New stress points on the suspension?
Thanks for any input. I Appreciate the help.
I look forward to building this truck this winter. I already have RPM front and rear kit on order. I look forward to shedding a pound or two from the other miscellaneous things I will shave. But I think this truck will be a lot of fun this spring.
Thanks again,
Traijin