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R/C Tech Forums Thread Wiki: Team Associated RC10 B5m Mid-Motor Thread
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Old 01-18-2015, 09:21 AM   #10591
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Damn!

Only stock class at the track I run and people make such a fuss about modded trucks being too fast on the straight (small track). But the 17.5's put down more consistent laps because they don't have to control their throttle as much. Sometimes we can slip into a club race but usually someone is complaining.
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Really happy with the 3 gear transmission. It definitely lightened up the car, as well as gave the car more punch and top end in 17.5.

The biggest change is the sound - the 3 gear is absolutely quiet. The mesh between the gears are PERFECT.
Sounds like you run 17.5 but did you notice anything as far as rear grip? With the motor rotating a different direction I'm curious if it decreased rear grip.
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Old 01-18-2015, 09:25 AM   #10592
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Sounds like you run 17.5 but did you notice anything as far as rear grip? With the motor rotating a different direction I'm curious if it decreased rear grip.
This is the big thing I am wondering about.
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Old 01-18-2015, 10:20 AM   #10593
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Sounds like you run 17.5 but did you notice anything as far as rear grip? With the motor rotating a different direction I'm curious if it decreased rear grip.
No change at all. I ran the same tires I usually run, and didn't change the setup all day. This is on a medium bite outdoor track that will wear a "groove" as the day turns to night. I usually start the day off with Hybrids, then switch to barcodes. Did the same as usual, and handling wise I noticed with the Hybrids the car had more steering than usual when running them.

And yes, I've moved back to 17.5. This transmission was built with CB's custom gears, and schelle ceramic bearings.
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Old 01-18-2015, 12:04 PM   #10594
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Oh grief, what am I about to do here...





You don't even need the trick lightweight parts. If you have the skill to be at the top of mod, then you can throw any old properly geared 17.5 motor from the last two years in your car and clean up in stock, even with a beefcake car. At least that's been my experience: The reason people run stock is because they can't be as competitive in mod... period.

Driving ability doesn't reign supreme in stock. Differences in driving ability of those who remain in stock reigns supreme. There's an important difference, and that is that the people with the supreme driving ability are at the top of the mod classes, not stock. It takes exponentially more skill to drive mod fast than it does to drive stock fast, and the main reason for that is because the cars are actually going fast, the setups really matter, and the differences between good and great drivers really show up.

Whenever a stock guy asks me to drive his car and offer opinions on their car, my response is almost always the same: "Seems fine." I may point out some small thing they could change, but in reality, unless their car is a complete pile of crap, I adapt to it pretty quick and I'm off click'n off good laps. If they ask detailed setup questions like "oh I was going to try X and Y", I struggle to put it nicely, and I really am trying to be the right combination of honest and "not a dick", but it boils down to this: It really doesn't matter on the small stuff. Big stuff, sure... right tires, a setup that isn't completely broke, correct ride height, decent maintenance... but when it comes down to "should I run a 3x1.4 or 1.6 piston in the rear?" It doesn't really matter—it's totally personal preference. The car's just not going fast enough to really work the suspension that hard. The hardest the suspension works is when their car fails to clear a jump and gets it's bones rocked, and that's a roll of the dice.

If the fast mod guys step down to stock, and yes, down is the right word, people complain and moan about it. I've seen it happen. If somebody gets untouchable in stock, people start asking when they're going to "go mod" since they're so fast. So what you're left with is a group of racers that are all similarly matched for skill with a limited top speed. What do you do to get an advantage? You drop money on the best possible motor and electronics that pass tech and the lightest possible car. Then when people ask about the stock class, you provide the standard response about "less about speed and more about driving," even though it takes way more driving and setup skill to compete in the mod classes at the pace they're running. And that's the stock game in a nut shell.

Modern day offroad stock is a SPORTSMAN class. Some will admit it, some will not. Back in the 90s, the fast guys ran stock and the mod class was for goofs with too much power and not enough self control. The kicker is that STOCK OFFROAD is fun as hell. It's competitive. It's a blast. Don't knock it. I keep a 17.5 motor around just in case. Just be honest about what it is.

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Old 01-18-2015, 12:07 PM   #10595
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Locally for me mod buggy is the premier class we have several very fast guys that could compete on the national level(and do when we get pro drivers at end of year race). And our stock class is loaded with super talented youngsters and old guys like me that don't get to the track as much as we'd like. Stadium truck is very similar. the 2 guys running rc10s are no slouches they are proving a point. They both have run mod and done well there. Stock is a competitive class where setup matters more than horsepower and driving skill is king. That's why all the best mod racers honed their setup and driving skills in stock and then moved up to mod. Razathorn I'll agree that a piston change probably won't be a noticeable change but saying stock doesn't make the suspension work is wrong it might not work as fast but it still has to work because your still pitching a 3lb car into a corner or landing it off a jump. Mod setups are different than stock do to the speed but setup still matters a lot in both classes
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Old 01-18-2015, 05:46 PM   #10596
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You don't understand it, which is fine.

Driving ability in 17.5 reigns supreme for most. A fast motor is just a nice thing to have. If you hit pipes a ton, it won't matter what motor you have.
I guess I should clarify, I do get it, and I'm sure it's fun. My kids want to get into racing and I have been hesitant to do it after reading some of the comments about the $$ spent in stock - but your comment about driving ability totally makes sense. I guess you can go overboard no matter what class you run in.
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Old 01-18-2015, 06:03 PM   #10597
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I guess I should clarify, I do get it, and I'm sure it's fun. My kids want to get into racing and I have been hesitant to do it after reading some of the comments about the $$ spent in stock - but your comment about driving ability totally makes sense. I guess you can go overboard no matter what class you run in.
If your track doesn't offer a sportsman class, don't worry about the $$ for stock, all the extra stuff is just people trying to find an edge, no need for beginners, and actually will make the car less durable. B5s are a tanks, I think they are great cars to start with.
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Old 01-18-2015, 06:07 PM   #10598
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I have finished up my second article in a series of ways to lighten a B5m for Stock racing. To say that any one thing or everything is needed isn't true. There are guys at my track who have a regular 17.5 and none of the lightweight goodies and run very good. It's a personal preference thing. Can it be expensive to run Stock? Yes. Does it have to be expensive to run Stock? No.
Just the same I see a lot of Mod guys buying a bunch of the aluminum parts to add weight on certain parts of the car. That isn't cheap.
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Old 01-18-2015, 08:29 PM   #10599
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This post is probably the best thing I have ever seen since WC was banned. Sorry WC, still love ya buddy hahaha
Wow. I had open heart surgery last august and was kinda out of everything for a bit... but I had not hurt of said event until now. Thanks for that—it was a good read.

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Old 01-18-2015, 10:01 PM   #10600
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which 17.5 motor would you guys recomend for b5m? Im new to buggy and would like to do the stock class and focus on my driving skills.
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Old 01-18-2015, 10:19 PM   #10601
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which 17.5 motor would you guys recomend for b5m? Im new to buggy and would like to do the stock class and focus on my driving skills.
Any of the major brands should suit you just fine if you want real high end stuff it costs a bunch a dough. The hackers, reedys, trinity, and there are guys at my local track that run the fantom and lrps and they are way fast.
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Old 01-18-2015, 10:23 PM   #10602
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Always enjoy your posts Razathorn.

MikeXray, yours are usually pretty spot on too.
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Old 01-18-2015, 10:26 PM   #10603
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That MikeXray guy is such a tool :P

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Old 01-18-2015, 10:37 PM   #10604
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Trackstar 17.5 from hobbyking. Use the money you save for more tires or an extra battery so you can practice more...
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Old 01-18-2015, 10:40 PM   #10605
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I've heard good things about the smc motors but as far as top of the line fast the d4 its good and the r1 wurks motor is pretty fast as well.
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