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Old 06-16-2004, 06:50 AM   #226
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On the academy VIP site there is some info on the new slipper in the works. They even have a pic of it.

I will probably speak with my LHS and see if they are capable of getting Kose parts.
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Old 06-16-2004, 07:13 AM   #227
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just talked to a korean hobby store owner. he told me there is actually a rtr version of the sb sport, which is called the sb pro. it comes with bearings, graphite and other hopup goodies. mrc did not pick this version up, but individual hopups are available. who knows, maybe mrc will bring it later. he also told me that tamiya has a new 4wd buggy coming out and it will blow away the sb sport, super dogfighter and the losi buggy. but still, for the money, the sb is the way to go.
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Old 06-16-2004, 07:54 AM   #228
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He may be mixing it with the STR4 Pro Sport and Pro, which is the TC equivalent, with the sport needing some bearings and carbon fibre parts, and the Pro being the FULL SPEC.

I do understand that they ARE looking at creating a PRO version of the buggy as the hop ups are readily available.

Slipper, this will be a two pad item (one either side of the spur gear) and is adjusted with an allen key down the drive cup, which will mean popping the driveshaft out, which takes seconds. It is VERY similar in design to the Kose item.

As for a Tamiya, I guess it would be a good piece of kit, but can't see it being as cheap as the Academy without them putting bushings everywhere.
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Old 06-16-2004, 01:23 PM   #229
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Quote:
Originally posted by threeEwes
Losi from hell:

The kit will be available at family hobbies. Chim-chim is supposed to get one too.
I dont know how much its going to sell for. You should check with chim-chim.
GREAT!!!
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Old 06-17-2004, 05:02 AM   #230
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Can't wait to see what this great buggy Tamiya has coming will be. At least it gives people another option and another path into 4wd.

got my shocks in from kpc on ebay. Pretty good price, only 32.50 shipped for brand new B4 shocks, springs, oil, and all the mounting hardware. I think he basically takes apart kits he has in stock and sells the parts seperate.

Anyone of you guys know this: I have been curious what the SB in the SB Sport name stands for. I hope its not "Sport Buggy" , what do you do with your Pro then?


Last edited by Cain; 06-17-2004 at 08:14 AM.
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Old 06-17-2004, 01:03 PM   #231
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Quote:
Originally posted by Cain
Anyone of you guys know this: I have been curious what the SB in the SB Sport name stands for. I hope its not "Sport Buggy" , what do you do with your Pro then?
MRC/Academy PB Pro!
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Old 06-17-2004, 03:21 PM   #232
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Well, take a que from other naming tips of other Academy cars.

The tourer is the STR4, under that you have the STR4 Pro Sport and STR4 Pro.

The SB denotes it as the Buggy variant, and its full title is STR4 SB/
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Old 06-17-2004, 04:33 PM   #233
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SB could be super buggy. so when the pro comes out it will be the super buggy pro. and we all know thats its gonna leave the losi's in the dust.
can't wait to get mine...

Chris
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Old 06-17-2004, 04:59 PM   #234
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I am 85 percent completed building 1 of 2 kits and I'm very impressed the sb sport. One thing I like is the thickness of the suspension arms, shock tower-thicker than losi, heck...you just look at losi arms and they @@@@@@' break! the suspension arm carriers are 2 piece but thicker than the standard arm carrier.
The major selling point for me is the shaft drive, and if you want you can get the carbon shaft.
This kit is going to be better than people expect it to be once a lot of people get a chance to see it on the track and in the stores. You just have to give it a chance.
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Old 06-17-2004, 06:08 PM   #235
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Glad to here you are liking the buggy so far.

I plan to mount my AE shocks on it tonite as well as get it up and running for tommorrow. Maybe some light bashing as I am checking out a big offroad track tommorrow that I am thinking of racing at regularly on fridays. Just need to see what tires will work.
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Old 06-18-2004, 12:43 AM   #236
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Saving up!!

I'm at...$5 so far.........
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Old 06-18-2004, 03:29 AM   #237
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Default equipping SB-Sport with gear diffs

Equipping the SB Sport with bevel gear Diffs can be a good idea if you want to go brushless or convert your SB into a 4wd racing truck (did the first one, want to do the second one in one or two months)

First of all, you'll need an extreme durable drivetrain for the bigger torque of BL and rotational mass of the diff isn't such an issue since there's plenty of power. Ball diffs are not up for that task, especially when it comes to BL AND big tires, they won't do their job a long time.

A second "bonus" comes into play: by using gear diffs, your internal ratio goes up from 2,75:1 (44/16) to 3,18:1 (35/11) - that will compensate for bigger stadium Truck tires so you can just gear like a normal buggy

You basically have two options:
either go with the plastic gear diffs of the STR-4 Rally or throw in the diffs of Academy's RT-4 GP Gas Truck (guess what diffs I did choose )

So here's the complete list of parts:

2x RG-013:
complete diff assembly
You can fill them with 10000cps and above silicone oil to get an LSD effect.

2x RG-039:
2 Pairs of joint cups that mount on the diff outputs and take the driveshafts. This is the steel version of the aluminium layshaft cups - so if you feel that they wear a bit too fast, just get RG-039

STT-07 und STT-08
These are the pinion gears and shaft for the front and rear gearbox. They are machined from steel. There's also a cheaper version with a black shaft and zinc pinion gear that carries number ST-17 & ST-18 or so...

RG-054 & RG-055
Some shims that might come in handy during the conversion. to shim the diff correctly, just use at least 2 10x13mm shims at the outdrive that is opposite to the crown gear.
BUT REMEMBER: While shimming metal diff gears, you'll have to be much more cautions because if you set the mesh too close, they'll destroy your bearings (whereas plastic gears would just break in a little more) Set it to loose and they wear. You have the right amount of mesh, when the gears turn smoothly and you hear a little "click-click" when holding the pinion gear and wiggling the crown gear.

You might also want to get some M2,5x14mm screws since the stock ones, that secure the crown to the diff case stand out a little with their FH and catch the gearbox. (the angle of the flathead is bigger making it hard to get a countersunk hole on the diff gear that cleanly accepts the screw - so just throw them away)

Once you're done, pack some teflon based grease into the gearbox and install the upper half. Be sure to check, if the gears are running smoothly when everything is secured with screws (important!)
If you feel the gears are binding, just add a 3rd shim opposite to the crown.

When driving, remember that these gears are made from steel and zinc; a comination, that is very wear resistant and has a hard surface, so break in will probably take a lot longer than your plastic gears.

Needles to say, that you possibly will never have to take apart a singe gear box any more, because you have the most durable drivetrain in relation to vehicle weight... I love, how academy shares parts between models.

Additionally, install an enhanced top deck that replaces the stock upper(! not the lower one!) deck

Quote:
http://www.offroad-cult.org/Forum/images/20040609/SBtopdeck.ppt
...and there you go.
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Old 06-18-2004, 06:30 AM   #238
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I got my AE shocks installed yesterday, Much smoother feel than the kit shocks. Only thing I had to do was grind down the AE screws that go through the shock tower so they didn't stick out so far but all in all it worked great. for the bottom mount you have two choices, grind down the AE inner ball so it will squeeze into the arms or just use the kit lower mounts and inner balls and just put them on the AE shafts. I did this, works great.

One thing I have noticed is that I still feel like I need more pack. The B4 kit setup using #1 pistons as described in the manual works better than the SB Sport kit setup, more pack than before, but it still feels alittle too soft. I am thinking of either going to #2 pistons all around or going up in oil all around. Right now I run 30W Rear, 35W front.

Anyone else have a recommendation for oil settings? Last I saw was 40W all around, though I kind of like having the weight biased to the front.
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Old 06-18-2004, 08:38 AM   #239
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two's in the rear, and three's in the front I have seen in the UK. To be honest though, the reason why they feel smoother is that the shock seals are VERY hard and a little tight on the shafts, MIP ones fit the bodies, and so do Racers Edge, which is what I am going to try.

I am also going to run the purple shock bodies.
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Old 06-18-2004, 08:43 AM   #240
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Thanks for the info. I think i will go with #2s all around and start from there.

I wish I had some color pics of what the hop-ups for the SB Sport look like. If you got any, especially of the shocks please post.

Also, has Academy release the ratings on the kit springs and has plans for spring tuning kits?
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