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1/10th scale 4wd Mod Buggy

1/10th scale 4wd Mod Buggy

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Old 10-17-2013, 06:18 PM
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Default 1/10th scale 4wd Mod Buggy

I have been wanting to race 4wd mod buggy and want to know things about the class. Such things include what motor size is most common and how they drive compared to their 2wd counterparts. Anything informational would be appreciated. Thanks
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Old 10-17-2013, 06:22 PM
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They use mod 540 size motors. As for driving dynamics, not really sure because I have never had a competitive mod 1/10 4wd buggy.
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Old 10-17-2013, 06:39 PM
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In my opinion many people new racers and seasoned alike tend to over power there car. I have been running 4 mod for two years now and I still haven't been to a race or a track where I have felt that my 8.5 was lacking or I needed any more power. As far as how the car behaves in comparison to a 2wd buggy, they react to the track in simmlar ways but that is about it. The drive is quite different , in many ways they are easier to get them around the track than a 2wd buggy . But to get them to the competitive edge requires more precision , and a much more aggressive trigger finger.
As far as what kit to buy , pick one there all pretty darn good .
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Old 10-17-2013, 06:40 PM
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They're probably one of the most fun classes to run. Super fast and require a different driving style than 2wheel. You can be a lot more aggressive with the throttle and brakes. But they usually require more maintenance because of 2 diffs. And they tend to break easier than 2wheel because you're going faster. A combination of finesse and aggression is usually best. Most guys run 6.5-8.5 motors although I've seen a few run 5.5. I'm going to try a Tekin pro2 this winter as soon as I get my gear diffs installed in my b44.2
Should be fun.
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Old 10-17-2013, 07:12 PM
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Originally Posted by jsinclair View Post
In my opinion many people new racers and seasoned alike tend to over power there car. I have been running 4 mod for two years now and I still haven't been to a race or a track where I have felt that my 8.5 was lacking or I needed any more power. As far as how the car behaves in comparison to a 2wd buggy, they react to the track in simmlar ways but that is about it. The drive is quite different , in many ways they are easier to get them around the track than a 2wd buggy . But to get them to the competitive edge requires more precision , and a much more aggressive trigger finger.
As far as what kit to buy , pick one there all pretty darn good .
Would a 10.5 be a good motor to get the hang of it or just tune down a lower turn motor?
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Old 10-17-2013, 07:16 PM
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absolutely love this class, and with new kits coming out for top brands i see this class growing again
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Old 10-17-2013, 07:26 PM
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To the op, what's your skill level? What other classes if any have you raced? What size track are you going to race on? All things we need to know to recommend a motor.
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Old 10-17-2013, 07:27 PM
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Originally Posted by gprcmx312 View Post
Would a 10.5 be a good motor to get the hang of it or just tune down a lower turn motor?
This would be good but make sure to get a sensored setup. I tried running a non-sensored 9.5 on my DEX410v3 and it just will not run correctly (cogging issues). You will definitely switch to a faster motor once you see others with a 6.5, 5.5 or even a Tekin Pro4 motor. This thing is like a missile on the straight away.
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Old 10-17-2013, 07:30 PM
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Originally Posted by gprcmx312 View Post
Would a 10.5 be a good motor to get the hang of it or just tune down a lower turn motor?
It's hard to tell you exactly what size motor to get. A lot of it depends on the size of your track. I have run everything from small to large indoor tracks. I have been running mod 4wd buggy for 3 years now and have not owned anything but an 8.5 motor. Yes when I do go to the larger tracks I do get pulled a little bit going down the front straight but that's it. It is plenty of motor throughout the entire infield. On the medium to smaller tracks I run at the guys running smaller turn motors all have them turned down anyways so there really is no difference. 10.5 probably wouldn't be a bad choice but I would personally recommend an 8.5. If it's too much for you in the beginning you can always turn it down a little to get the hang out it. But I really doubt you will ever need anything more than that. Good luck with your choice
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Old 10-17-2013, 07:35 PM
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Originally Posted by rcgod View Post
To the op, what's your skill level? What other classes if any have you raced? What size track are you going to race on? All things we need to know to recommend a motor.
I would say that I am indeterminate skill level. I have raced 17.5 stock short course, modified 4wd short course, and 17.5 stock 2wd buggy. The size of track I will be racing on is 120 feet long by 50 feet wide. The surface is smooth high bite clay.
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Old 10-17-2013, 07:45 PM
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When a 4wd buggy is in the air, you have to be careful to not over-correct car attitude with throttle input mid-air. Instead of spinning two tires your spinning four and you can really over do it. Also, because the fronts are wider, heavier, and driven compared to a 2wd buggy you can roll the car mid-air easier. By this I mean if you turn the fronts mid-air and give a little throttle you can tip the car along the length axis (think of ailerons on an airplane).

Isn't angular acceleration fun?!
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Old 10-17-2013, 07:51 PM
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Go 10.5 and boost it if/when you need more.
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Old 10-17-2013, 08:53 PM
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Originally Posted by gprcmx312 View Post
Would a 10.5 be a good motor to get the hang of it or just tune down a lower turn motor?
I run a tekin gen2 10.5 in my K1 and it's the best combo yet.
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Old 10-18-2013, 06:11 AM
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I like the 4x4 class, but for me it's to agressive lol, but the b44.2 is pretty decent, I see em all over!
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Old 10-18-2013, 06:18 AM
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Originally Posted by t8rtot View Post
Go 10.5 and boost it if/when you need more.
^this

Most indoor tracks I race at, 10.5 seems to be the motor of choice.
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