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Old 03-19-2005, 05:48 PM   #10516
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Quote:
Originally posted by Sluggo
Hi.......... Just wanted to say that I love my Pro4 but was having some tweak issues with it so I got a BMI chassis. I want to keep my current setup but I know I have to make some changes to the setup when going from a 2.5mm chassis to a 3.0mm chassis. What do I have to change for this swap. Also if there are any good setups for the BMI chassis I will give them a try also. I'm running foams on carpet. Anyone running a carbon fiber shaft in there car? Are they good/bad and what brand are ya runnin?
Im not running a carbon shaft yet but im gonna buy one HPI makes one but its kinda hard to get in the U.S.

Justin
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Old 03-19-2005, 07:17 PM   #10517
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Quote:
Originally posted by R40Victim
I actually just came accross one that's been cut. The guy is selling it, and it's mixed in with all the parts going with it. I posted asking him if it flexed. I'm running it in a 19t class, so I want to be sure it won't just eat pinions and spurs from flexing...
R40...

I know myself and atleast 3-4 other Pro4 racers in my area were running their motor mounts 'cut' with no shifting problems in stock/19T.

Hope that helps
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Old 03-20-2005, 12:02 AM   #10518
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Beware!!!!! I used a HPI carbon shaft with an Orion V2 9x1 on tarmac with foams.....in 3 runs it twisted the shaft 1/4 turn.I know of 2 other guys have had the same problem.I put a post on this thread for Thad but he must of missed it.I also emailed HPI USA but never got a reply.They might be okay for stock or19 turn but DO NOT use them for mod.
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Old 03-20-2005, 12:09 AM   #10519
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Thanks Nexus, I assumed the 19t wouldn't have the "gutz" to tweak it too bad, since it can handle mod motors...
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Old 03-20-2005, 01:59 AM   #10520
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I've been running the HPI carbon shaft in my Pro 4 using a 12 turn motor since it came out in the UK and I've had no problems with it twisting (touch wood)
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Old 03-20-2005, 06:11 AM   #10521
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hi

can anyone supply me with some web sites that sell the hpi high traction arm set.

i already know that R10 sells them but im having trouble ordering from them so if anyone else could give me some sites

that would b great

thanks
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Old 03-20-2005, 06:41 AM   #10522
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Precisionrc, rc-mushroom,I think maybe stormerhobbies.
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Old 03-20-2005, 07:24 AM   #10523
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hi rc bros,need your help here. i recently got a pro 4 and finish fixing it. but i cant seem to be able to mesh the pinion and spur gear? i bought the pro 4 32t pinion,and my spur is the stock 98t. my motor is a stock johnsen one. no matter how i adjusted the 2 screws, it jus cant fit well... anyone can help me pls...? my pro 4 is the version 1.1...
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Old 03-20-2005, 08:28 AM   #10524
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Are you certain you have the right pinion? Maybe it's a 48 pitch pinion, your spure should be 64 pitch...
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Old 03-20-2005, 08:31 AM   #10525
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Well, since he bought the pro 4 pinion, then it should be 64 pitch.
Maybe he screwed into the wrong holes on the motor.
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Old 03-20-2005, 08:50 AM   #10526
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When looking from the top, the upper screw should be on the inside hole, and the lower on the outside. I haven't seen a Pro-4 specific pinion. I've seen two sorts of HPI pinions, the black was 48 pitch, the chrome one's are 64...at least at my LHS...just trying to help.
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Old 03-20-2005, 09:33 AM   #10527
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Quote:
Originally posted by Skill
I've been running the HPI carbon shaft in my Pro 4 using a 12 turn motor since it came out in the UK and I've had no problems with it twisting (touch wood)
Skill,
A 12 turn motor is a great deal "softer" than a 9 turn. I bet, if you did what he did and tried a hotter motor, you'd have the same results. The graphite center shaft isn't going to withstand the torque of a low-turn mod. Stick with stock aluminum shaft for low mods, guys.
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Old 03-20-2005, 12:25 PM   #10528
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Quote:
Originally posted by leon26
hi rc bros,need your help here. i recently got a pro 4 and finish fixing it. but i cant seem to be able to mesh the pinion and spur gear? i bought the pro 4 32t pinion,and my spur is the stock 98t. my motor is a stock johnsen one. no matter how i adjusted the 2 screws, it jus cant fit well... anyone can help me pls...? my pro 4 is the version 1.1...
do this....put a 33T pinion on the motor and tighten it up snug against the spur.

slide the 33T off then put the 32T pinion on.....you should have a decent amount of mesh....set it and forget it.
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Old 03-20-2005, 02:10 PM   #10529
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Default wheel spacers

do you guys use the kit supplied wheel spacers when using the 24mm slick tyres (Sorex 28R)?

i found that my front wheels's hub thread starts to round off after 20 packs or so if i use the spacers but it's okie if i don't use any spacers. I've tried the Hotbodies white rim, tamiya one and another brand and they all have the same problem. My rear wheels seem don't have this problem.. Do you guys have the same problems?

and what is the pros/cons if i don't install the spacers?
thanks

p.s.I'm racing outdoor btw.
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Old 03-20-2005, 02:19 PM   #10530
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Quote:
Originally posted by kewdawg
Skill,
A 12 turn motor is a great deal "softer" than a 9 turn. I bet, if you did what he did and tried a hotter motor, you'd have the same results. The graphite center shaft isn't going to withstand the torque of a low-turn mod. Stick with stock aluminum shaft for low mods, guys.
Yea I know what your saying, I was just trying to reassure people that with something like a 12 turn motor the carbon shaft should be fine, it depends what sort of motors you classify as being a mod, because at my indoor club the lowest turn motors run are 12's.
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