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Old 08-26-2016, 11:53 PM
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Originally Posted by racer1812 View Post
Regardless of motor..IIRC the smallest spur gear you can get for the 44.3 is an 81? Without modification to the chassis, the largest pinion that will fit is a 30/31..I believe. When I ran 13.5 (not Tekin) in my 44.2 I ran a 78 or 81 (can't remember exactly) with a 28 pinion due to the track size.

81/28 would be a safe starting point, if my mind hasn't failed me.
On my 16 XB4, this combo won't fit. I have to run the slipper because the smallest spur for gear diff is 78. For X-ray, you'll need slipper with 75/26.
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Old 08-27-2016, 12:37 AM
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What's the smallest pinion that can be run with a 78 tooth spur on the Xray and what would be ideal gearing with a 78 spur (24-28)?
Originally Posted by LAGuy View Post
On my 16 XB4, this combo won't fit. I have to run the slipper because the smallest spur for gear diff is 78. For X-ray, you'll need slipper with 75/26.
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Old 08-27-2016, 06:23 AM
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I don't understand the hate people have toward the b44.3. I have the the first gen b44 and the car handles extremely well and the build on it was perfect. I do understand that there was some problems with the fitment of the gear diff in the first batch of cars but that has been corrected. One of my friends switched from a 22-4 to a b44.3 and loves it. So to say it is a ill handling piece of crap is just wrong imo and sounds like someone that just did not give it a chance. All that is needed for durability is the rpm from arms which will have to be slightly fitted in my experience.
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Old 08-27-2016, 08:06 AM
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I run stock 2015 xray in 13.5 against mods ,i do pretty well but my driving sucks!! lap times are around 12.5 -13.00 for me and mods 12s to 11.5..all i know my tires last a longer time and i'm still competitive just can't power my way out of mistakes. Also i'm only one running xray because part support is small..all i ever needed was arm because of my driving..lol
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Old 08-27-2016, 10:44 AM
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My xb4. Will be running 13.5. As far as i can get until my shock pistons get here. Went all medium parts, moved the motor back, center diff and a couple other odds and ends. Havent had a wheeler since my xxx4 g+ back in the day, cant wait to hit the track!
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Old 08-27-2016, 12:51 PM
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Originally Posted by JAE View Post
Why slipper with the gear diff? Drag? I have an xb4 with a slipper. Have a gear diff I haven't used so was wondering, thx!
Originally Posted by WillS View Post
I would honestly run the slipper instead of the gear diff and run a 78 spur.
Gearing is more critical. The majority of the time the center diff is not actually functioning with a 13.5. I ran 1million in my xb4 but that was because I never had a slipper setup.
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Old 08-27-2016, 09:23 PM
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Just wanted to drop in this thread to contest the notion (mentioned by several people in this thread) that shaft drive cars are faster with a 13.5 than belt drive, the lower rotating mass more than makes up for the increased drag in the drivetrain.

I also see a lot of people that seem to think that just slapping RPM arms on a B44.3 is going to fix the car's problems -- nobody seems to have mentioned that the reason the RPM arms hold up is that they are WAY softer plastic than the AE arms. Running super soft and flexible front arms has a dramatic and negative affect on steering and handling, which is why AE didn't use the softer material to begin with. It's not as simple as "slap the RPM arms on and the car is fine." A great driver can still win races with a B44.3, but at a significant disadvantage against newer and better versions of the same basic design -- HB D413 and XB4.

Just a couple more things to support the arguments made in this thread that the B44.3 is not so great:
1) The price is down to about $230, roughly half the price of the 4WD cars from TLR, Xray, Yokomo, etc. Simple economics tells us that it wouldn't be that cheap if it was still on par with the other offerings.
2) There's been threads all over RCTech clamoring for information from AE about when their next 4WD will be coming out, many drivers who are generally loyal to AE consider the car to be so bad compared to the other offerings that they're either buying cars from different brands or just staying out of 4WD until a new car comes out.
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Old 08-27-2016, 09:31 PM
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The B44.3 wins races at all levels, all over the world. The RPM arms are softer plastic, but they're made with more material. They somehow ruin the handling? C'mon now... The stock arms aren't bad, especially when run in the far more controllable 13.5 class.

The people clamoring for a new car just want a new car.

I agree on belt drive. Because it doesn't spin freely on the bench in no way means it has more drag under load, quite the opposite, belt drive is very efficient under load and exhibits no strange torque effects.
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Old 08-27-2016, 09:55 PM
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Originally Posted by Davidka View Post
The B44.3 wins races at all levels, all over the world. The RPM arms are softer plastic, but they're made with more material. They somehow ruin the handling? C'mon now... The stock arms aren't bad, especially when run in the far more controllable 13.5 class.

The people clamoring for a new car just want a new car.

I agree on belt drive. Because it doesn't spin freely on the bench in no way means it has more drag under load, quite the opposite, belt drive is very efficient under load and exhibits no strange torque effects.
The stiffness of the plastic has a dramatic enough effect on handling that AE and Xray make whole sets of plastics of different hardness for different surfaces. I don't own a B44.3, but many locals at Trackside have told the same story about why they don't run the RPM arms. Just because Cav can win races with it doesn't make it the better car... and he certainly hasn't been beating Maifield, Phend, and Tessman in 4WD very often these days
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Old 08-28-2016, 11:51 AM
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Just said it was good, didn't say it was better. If you race at Trackside, you know that just as well as I do.
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Old 08-30-2016, 12:29 PM
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Originally Posted by JAE View Post
What's the smallest pinion that can be run with a 78 tooth spur on the Xray and what would be ideal gearing with a 78 spur (24-28)?
Don't know, but you need a 78/27 and that will not fit.
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Old 08-30-2016, 02:58 PM
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Originally Posted by b1narych0ice View Post
Just because Cav can win races with it doesn't make it the better car... and he certainly hasn't been beating Maifield, Phend, and Tessman in 4WD very often these days
We don't?

Ryan Cavalieri sweeps Surf City Classic
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Old 08-31-2016, 10:22 AM
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RE: RYAN SWEEPS SURF CITY.......Home track advantage much?
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Old 08-31-2016, 12:17 PM
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Wouldn't a sweep imply he also took stadium truck? Nevertheless 3 out of 4 1/10th scale classes is pretty damn impressive.
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Old 08-31-2016, 01:00 PM
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Nothing wrong with liking the B44.

But to say that it's a better car than a few of the others is a bit misleading. No way I'd pass the HB car for the AE. Let alone the Kyosho and Xray cars.

The Ryans used to do OK with the RC8, and it was a turd. So that proves very little, other than that a ton of aftermarket mods can improve a car enough.
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