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Single belt TC, any advantage?

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Single belt TC, any advantage?

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Old 11-08-2018, 06:50 PM
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Originally Posted by Speed Chaser View Post
I been checking out the yokomo conversion, may have to get it. Looks like a good design.
Whenever i was in Japan i just saw only 1 driver use this kit to run, it means this single belt is very rare and unpopular.

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Old 11-08-2018, 07:25 PM
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Originally Posted by mac853 View Post
Whenever i was in Japan i just only 1 driver use this kit to run, it means this single belt is very rare and unpopular.
It may be uncommon but I like stuff like that in the hobby the more different something is the more interesting I find it.

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Old 11-08-2018, 07:44 PM
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Originally Posted by Speed Chaser View Post
It may be uncommon but I like stuff like that in the hobby the more different something is the more interesting I find it.
sound like Me
I also have the 2015 BD7 Spice front wheel drive. and Exotek conversion TA07 single belt drive...

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Old 11-08-2018, 10:18 PM
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Originally Posted by OVA View Post
sound like Me
I also have the 2015 BD7 Spice front wheel drive. and Exotek conversion TA07 single belt drive...
Why you think I wanted the top racing single belt lol that was a pure curiosity buy. Stuff that is different like that keeps the hobby interesting for me. The Exotek conversion is on my list mainly because of their new motor mount design seems like a big improvement over the stock TA07 motor mount.
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Old 11-09-2018, 03:03 AM
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Originally Posted by Papi View Post
but if spur is between belt and motor, you have to move motor away from belt to make space for spur. With spur on other side, motor can be closer to belt.
The motor mount will still be mounted along the centre line (like all the TC's) So the motor position hasn't changed.
It just means you end up having to run a dog legged topdeck
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Old 11-24-2018, 09:42 PM
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I installed alum bulkhead and made the chassis a little stiffer...so nice
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Old 11-25-2018, 12:02 AM
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Originally Posted by Skiddins View Post
The motor mount will still be mounted along the centre line (like all the TC's) So the motor position hasn't changed.
It just means you end up having to run a dog legged topdeck
You're assuming the motor mount itself needs to be straight.
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Old 11-28-2018, 05:32 PM
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Just finished up single belt yokomo BD7 2015
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Old 11-28-2018, 06:28 PM
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it makes the drivetrain a little bit more efficient...
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Old 11-29-2018, 12:28 AM
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How it makes drivetrain more efficient? You still have 4 bends on belt and 4 pulleys (diffs, centre pulley and and tensioning pulley), so one would think that efficiency is same.
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Old 11-29-2018, 06:22 AM
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Default Hhmmm... Good point

It's true, if you were to consider the total belt wrap area, it's prolly about the same.

On a single belt design, you can have a super huge return pulley, which might lower total belt wrap. The other pulleys will be tc standard.

Single belt tranny designs bring the advantage of being able to move the motor around to shift the weight distribution. Wheareas regular tc cars have a specific weight distribution that is pre-defined (by smarter people) and not really adjustable.

It's possible to move the motor closer to the centreline, depending on the motor mount design. But the current designs don't seem to take advantage of this.

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Old 11-29-2018, 07:48 PM
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Originally Posted by foampervert View Post
It's true, if you were to consider the total belt wrap area, it's prolly about the same.

On a single belt design, you can have a super huge return pulley, which might lower total belt wrap. The other pulleys will be tc standard.

Single belt tranny designs bring the advantage of being able to move the motor around to shift the weight distribution. Wheareas regular tc cars have a specific weight distribution that is pre-defined (by smarter people) and not really adjustable.

It's possible to move the motor closer to the centreline, depending on the motor mount design. But the current designs don't seem to take advantage of this.

Alexander
After running the TOP Sabre for 2 seasons(really good car,too bad it didn't have a better driver) then converting 1 to single belt, the car definitely felt a little more free through mid turn to exit. After connecting top deck through servo mount to steering posts (stiffened the car) All the same suspension parts and geometry, the car was .3 faster at all the tracks I run. I'm willing to admit .2 could be very slight changes in setup, but the remaining.1 I would give to the single belt. What is being overlooked is the fact of comparing 4 pulleys on a 2 belt car vs 4 pulleys on a single belt car. 2 belts = 4 toothed pulleys. Single belt = 3 toothed pulleys and 1 idler pulley with the belt running on the smooth side of the belt = no tooth engagement which would equal ever so slight, less drag. A tenth at my skill level would definitely be increased wth a better driver at the wheel. Disappointed that Vince chose to go a different route business wise, totally understand. I loved the single belt conversion enough to convert all 3 of my Sabres. Just sharing a little "life with the single belt"
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Old 11-29-2018, 08:31 PM
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Originally Posted by casrcr View Post

After running the TOP Sabre for 2 seasons(really good car,too bad it didn't have a better driver) then converting 1 to single belt, the car definitely felt a little more free through mid turn to exit. After connecting top deck through servo mount to steering posts (stiffened the car) All the same suspension parts and geometry, the car was .3 faster at all the tracks I run. I'm willing to admit .2 could be very slight changes in setup, but the remaining.1 I would give to the single belt. What is being overlooked is the fact of comparing 4 pulleys on a 2 belt car vs 4 pulleys on a single belt car. 2 belts = 4 toothed pulleys. Single belt = 3 toothed pulleys and 1 idler pulley with the belt running on the smooth side of the belt = no tooth engagement which would equal ever so slight, less drag. A tenth at my skill level would definitely be increased wth a better driver at the wheel. Disappointed that Vince chose to go a different route business wise, totally understand. I loved the single belt conversion enough to convert all 3 of my Sabres. Just sharing a little "life with the single belt"
In a dual belt system, the belts only flex in one direction. At high speed they tend to equalise in an oval shape, rarely returning to dead straight. In a single belt, they have to flex a lot more, which will sap energy. I'd expect that to counter any potential benefit to running one pulley unengaged. Especially considering an engaged pulley isn't slipping so isn't the primary source of efficiency loss.
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Old 11-30-2018, 06:04 AM
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Originally Posted by Speed Chaser View Post
I recently tested an 8.5t motor on my top racing single belt chassis for drifting and it handled it fine, no real problem so I don't see why the TA07 could not handle it.
not comparable... much much less stress in the drivetrain on a drift car...
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