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Old 05-16-2016, 05:22 AM   #7051
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Originally Posted by Robbob View Post
Need to find a 42mm or preferably 44mm front DCJ that will work in the BD7 [...]

Appreciate any help for my project. Thanks

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Originally Posted by M3CSLDreamin View Post
I've used Spec-R DCJ with no problems.
And do they also fulfill the special length requirements that were asked for? After all, Robbob wants them to be quite a bit longer than for example the original Yokomo DCJs, which are 40.6 (front) or 39.1 (rear) - so both nowhere near the length that was asked for. But unless Robbob is really doing some major modifications on his special project, creating a much wider front (200mm car?), I don't think such long DCJs could ever fit. After all, that length is about what the normal universal drive shafts have (44.0 / 45.5).
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Old 05-16-2016, 05:37 AM   #7052
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And do they also fulfill the special length requirements that were asked for? After all, Robbob wants them to be quite a bit longer than for example the original Yokomo DCJs, which are 40.6 (front) or 39.1 (rear) - so both nowhere near the length that was asked for. But unless Robbob is really doing some major modifications on his special project, creating a much wider front (200mm car?), I don't think such long DCJs could ever fit. After all, that length is about what the normal universal drive shafts have (44.0 / 45.5).
Not wider - need them to reach a little further into the out drive cups. But your info gives me other ideas now, Thanks
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Old 05-16-2016, 05:52 AM   #7053
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I just took a look at my cars... 42 instead of 40.6 may indeed fit. That's only 1.4mm longer than original after all, and my cars sure have enough space left. But 44... I wouldn't bet any money on it.

But I'm curious about what you're trying to do...
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Old 05-16-2016, 10:46 AM   #7054
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I just took a look at my cars... 42 instead of 40.6 may indeed fit. That's only 1.4mm longer than original after all, and my cars sure have enough space left. But 44... I wouldn't bet any money on it.

But I'm curious about what you're trying to do...
Got any leads on a set of 42?

They're the missing link in a cross breed using the BD7 suspension and another drive train.
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Old 05-16-2016, 10:52 AM   #7055
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Got any leads on a set of 42?

They're the missing link in a cross breed using the BD7 suspension and another drive train.
Sorry, no idea.
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Old 05-16-2016, 03:01 PM   #7056
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I'm running an FDR of around 3.2 for 21.5t also and used the sound method to mesh. When gearing so high I found the window of having a very quiet mesh very small versus when gearing on my buggy for modified. Wondering if it's got to do with more teeth on the pinion.

That is, for the bd7 there's a lot less gap in mesh. Not sure if this is expected but sounds okay after giving it a quick test in the street
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Old 05-16-2016, 03:45 PM   #7057
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I'm running an FDR of around 3.2 for 21.5t also and used the sound method to mesh. When gearing so high I found the window of having a very quiet mesh very small versus when gearing on my buggy for modified. Wondering if it's got to do with more teeth on the pinion.

That is, for the bd7 there's a lot less gap in mesh. Not sure if this is expected but sounds okay after giving it a quick test in the street
Sound method for gear mesh? I've never heard of that (or seen anyone do it). How does it work?
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Old 05-17-2016, 06:06 AM   #7058
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Have the motor and pinion near flush to the spur. Apply light to medium throttle and slowly back off. Once the mesh is at its quietest, lock the motor in place. Mesh seems okay. New to 21.5t coming from 4wd mod buggy
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Old 05-17-2016, 11:16 AM   #7059
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Interesting... really never heard of this before.
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Old 05-23-2016, 11:24 AM   #7060
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Default Problems with Belt rubbing pinion

I have to run my pinions backwards to get mesh on my spur gear due to my motors key on the rotor moving the pinion too far out to get full gear width mesh . When I do this, the center shank(where the grub screw is on the pinion gear rubs on my front belt under some load circumstances.

Does anyone have the same problem and what do they do to resolve it. Also, is there any manufacturer that makes super narrow pinion gears to eliminate this issue since the X-ray narrow pinion gears don't help.
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Old 05-23-2016, 12:18 PM   #7061
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Originally Posted by fpart View Post
I have to run my pinions backwards to get mesh on my spur gear due to my motors key on the rotor moving the pinion too far out to get full gear width mesh . When I do this, the center shank(where the grub screw is on the pinion gear rubs on my front belt under some load circumstances.

Does anyone have the same problem and what do they do to resolve it. Also, is there any manufacturer that makes super narrow pinion gears to eliminate this issue since the X-ray narrow pinion gears don't help.
I use Panaracer gears
No issues
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Old 05-23-2016, 04:05 PM   #7062
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Originally Posted by fpart View Post
I have to run my pinions backwards to get mesh on my spur gear due to my motors key on the rotor moving the pinion too far out to get full gear width mesh . When I do this, the center shank(where the grub screw is on the pinion gear rubs on my front belt under some load circumstances.

Does anyone have the same problem and what do they do to resolve it. Also, is there any manufacturer that makes super narrow pinion gears to eliminate this issue since the X-ray narrow pinion gears don't help.
I space my motor out 1mm.
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Old 05-23-2016, 08:40 PM   #7063
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Just finished my 2016 conversion from my '14 ........... Damn this thing is sexy.

What would anyone recommend for an indoor body? I always liked the P37 but never cared much for the Mazda's. Something balanced but aggressive?







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Old 05-24-2016, 02:12 AM   #7064
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Default Kit for low-medium grip and bumpy asphalt

Need info. Which kit best for low-medium grip and bumpy asphalt. BD7 2014, 15 or 16??

Ty for help
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Old 05-24-2016, 10:52 AM   #7065
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Interesting... really never heard of this before.
back in the days a lot of us did this trick , I know I did..
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