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Old 01-03-2016, 01:24 PM   #6541
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i heard a rumour that the spring and ball that gives the click to the adjusters can put a bit to much pressure on the bearing housing and it pinches the bearing ,aligned with an over tight belt,that may have been the issue with the belt in this case,i left the spring and ball out on my build,the adjusters are tight enough to not move but can still be adjusted wihtout undoing any screws,althoughthe car hasnt turned a wheel yet so it might come back and bite me,time will tell
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Old 01-03-2016, 02:03 PM   #6542
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i heard a rumour that the spring and ball that gives the click to the adjusters can put a bit to much pressure on the bearing housing and it pinches the bearing ,aligned with an over tight belt,that may have been the issue with the belt in this case,i left the spring and ball out on my build,the adjusters are tight enough to not move but can still be adjusted wihtout undoing any screws,althoughthe car hasnt turned a wheel yet so it might come back and bite me,time will tell

I just put some 0.10 washers under the split part of the bulk head to help with that as I still run the plastic cams
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Old 01-03-2016, 04:36 PM   #6543
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I just put some 0.10 washers under the split part of the bulk head to help with that as I still run the plastic cams
Same here. Personally I wouldn't run it without the spring and ball
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Old 01-03-2016, 05:59 PM   #6544
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Anybody know the spring rate of the black springs that come in the RS kit compared to the regular bd7 springs
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Old 01-03-2016, 08:43 PM   #6545
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Anybody know the spring rate of the black springs that come in the RS kit compared to the regular bd7 springs
1.4mm wire x 6.5 coils
On paper that puts it between Black & Blue Pro Springs

Black: 6.0 coils/1.4mm wire 258 gF/mm (YS-1460L)
Blue: 5.75 coils/1.4mm wire 264 gF/mm (YS-14575L)
Yellow: 5.5 coils/1.4mm wire 280 gF/mm (YS-1455L)
Purple: 6.75 coils/1.5mm wire (YS-15675L)
Pink: 6.5 coils/1.5mm wire 290 gF/mm (YS-1565L)
Green: 6.25 coils/1.5mm wire303 gF/mm (YS-15625L)
Orange: 6.0 coils/1.5mm wire330 gF/mm (YS-1560L)

http://www.teamyokomo.com/partslist/..._ys_1465l.html
http://www.teamyokomo.com/partslist/...ys_14575l.html
http://www.teamyokomo.com/partslist/..._ys_1460l.html
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Old 01-03-2016, 09:46 PM   #6546
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The RS springs are softer than the black "white" springs. It even says so on the package.

Dave, did you do your math right? How is a 1.4x 6.5 coil (per your desc) stiffer than the black which is a 1.4x 6.0? 😜
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Old 01-03-2016, 10:08 PM   #6547
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Thoughts on the BD7 2016 kit setup?

Haven't built mine yet and was wondering what the roll center position is like compared to the 2015. Is it the same?
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Old 01-03-2016, 10:25 PM   #6548
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The RS springs are softer than the black "white" springs. It even says so on the package.

Dave, did you do your math right? How is a 1.4x 6.5 coil (per your desc) stiffer than the black which is a 1.4x 6.0? ��
oops

You are correct sir
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Old 01-04-2016, 01:06 PM   #6549
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Anybody have any opinion on these Ie benefit? Yokomo B7-412RA BD7-2016 Black alloy stabilizer rods (2)
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Old 01-04-2016, 01:11 PM   #6550
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Anybody have any opinion on these Ie benefit? Yokomo B7-412RA BD7-2016 Black alloy stabilizer rods (2)
Only weight reduction. I have run the alloy ones in all my kits so far without issue.
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Old 01-04-2016, 02:03 PM   #6551
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Only weight reduction. I have run the alloy ones in all my kits so far without issue.
Thanks
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Old 01-04-2016, 04:54 PM   #6552
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Hi all,

Just thinking possibly of getting a BD7 2016 edition. Just in the past few models 2014 or 2015 just would like to know the following if you can comment:

Diff Oil Leaks? If yes is the fix a proper correction?

Shock Oil Leaks? Performance?

Durability of Front End C Hubs, Steering Blocks, Arms?

Parts Availability in USA?


Anyone convert over from Tamiya TRF418/419 have anything to say?
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Old 01-04-2016, 05:13 PM   #6553
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Quote:
Originally Posted by 190mph View Post
Hi all,

Just thinking possibly of getting a BD7 2016 edition. Just in the past few models 2014 or 2015 just would like to know the following if you can comment:

Diff Oil Leaks? If yes is the fix a proper correction?

Shock Oil Leaks? Performance?

Durability of Front End C Hubs, Steering Blocks, Arms?

Parts Availability in USA?


Anyone convert over from Tamiya TRF418/419 have anything to say?
Can't say anything about diff and shocks yet, but the suspension parts are the same as the previous versions. I have found them to be quite tough. In 2 years of racing, I only broke one C-Hub, and to be honest, I find myself lucky that was the only part I broke in that crash. May not be XRay tough, but very good nonetheless.

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Old 01-04-2016, 05:22 PM   #6554
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Without notice I have owned every single BD7 so far. This car is much better out of the box. Even though they have omitted the Aluminum steering, they provided the DCJ's which I think is a more important upgrade.

The shocks are much, much better. They are essentially a copy of ... wait for it... XRAY shocks. They are easy to build, don't take in nearly as much air as the old ones. My shocks still feel awesome, while my step son's '15 shocks sound like a squeaky toy.

The diff so far has not had major leaks. The '15 diff gave me a hell of a time. I think they found the rubber O-ring created more leaking and they went away from it. For my the 'BD5 diff sealed much better. I think the key for me to have leak free diffs has been fresh paper gaskets and a dry diff half when installed. This is what I have found works the best with the Yokomo diff.

The durability of the past couple of gen cars has greatly increased. Their weak point is still the steering knuckles, but everything is much better. If you crash a lot, putting XRAY steering knuckles on the car seems to increase reliability to a near XRAY level according to one of my buddies. Personally I do have the issue with the knuckles getting loose, but replacing a knuckle every month or two of racing is not a huge parts maintenance expense.

We intend to start stocking most every disposable item and upgrades for the BD7 line of cars over at our Reflex Racing store. We are still at the Mercy of the US distributor, but hopefully us working with them I can get them to get most of the important parts for the car over to the US market. Otherwise, Banzai hobby and RC Mart are really reasonably priced and ship quickly so long as the amount is enough to justify the extra shipping.

Let me end this by saying that I really like my '16. It is by far my favorite BD7. I think it makes a great Spec Racing car and the XRAY guys better watch out because Yokomo I think has made a better 17.5 car. I don't think this was always the case, as the Yokomo was hard to drive hard for 6 minutes without the right combination of parts. Even then the car is far more nervous than this new one.
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Old 01-04-2016, 05:48 PM   #6555
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I just bought some hard bumpers from your store Christian, the T4 and a blank one for my TRF419.

I never really had a couple of shock leaks over the years with Tamiya cars that I owned below and this 419 several are leaking as well as the diff and I built the diff according to thercracer blog (not xray orings yet).

Also when I was working with a good racer on a suggestion on increasing droop its like the arm would not go much further down with the grub screw backed out significantly. Maybe they should of have the shock towers lower or the series of top mount holes more down a few mm's. Got to look at it more.

The TRF is beautiful and always have been, but I am trying to find 1 or so seconds per lap to hang with the fastest in the A Main. My FDR is off as well as running an X12 17.5 LRP motor and soon should be mounting up my Fantom FR-1 works motor once my cooling fan setup comes in and that I think will make up most of the time, but I have been fighting with the car quite a bit too.
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