Due to ROAR introducing regulations that the chassi must accept a full size lipo.

Because you can make weight with a full size pack which has more punch for spec classes, and also shorty packs are not yet large enough IMO to be used for mod on large outdoor tracks

Thank you

bump 419

Photos from the 54th Japan Model Hobby Show.

ETA - December

So tell me if I have this right.

1) The two extra countersunk holes in the middle are for mounting a balancing weight/lipo stopper - yes?

2) the extra two under the motor mount are so you can mount the mount () with either 2,3,4,5 or 6(in theory!) screws and vary the flex?

3) from the spacing shown with the split blocks (note the chassis keying), you could still elect to run 1 piece blocks?

Has anyone seen pre-orders for this car yet?

Single blocks at the back are going to be a tight squeeze against the motor mount and at the front you're going to need the ones that clear the belt or get very innovative with a dremel and/or spacers.

Not overly enthused by the level of improvement (let's call it that) over the 418. It seems one might as well just buy a chassis plate and swap over all the hardware (if it is deemed the plate is in any way a liability).

As for the motor mount, I like the Yokomo style better. I don't see why Tamiya doesn't want to cantilever it (apart from maybe saving a few pennies on hardware manufacturing).

The diffs might be improved, but then again, there's some really nice diffs on the market from others and guess what, they fit in with minimum of effort (if not directly).

Which diff from which manufacturer fit in the 418?

The new from XRay does not fit.

The Xray needs 1mm machining of the bearing shoulder. They're the ones I use.

The Schumacher diffs need some spacers, but they're even better and bring FDR values for stock classes within reach of more terrestrial spur/pinions.

Thank you niznai and other brands?

I think for me it's going to be a toss up between this and the yokomo come end of the season.

In tamiyas favour is likely to be price though. The fact it doesn't "need" DCJs, servo mount etc as extra purchases will swing it for me. The 0.1s in potential speed difference (it won't even be that) won't be there for me in 13.5!

The other bonus of the tamiya is blue metal - easier to find on the pit table/track!

Not a bad choice, but then again the BD7 is very good car, perhaps more accomplished in some ways.

What else is there? The yokomo fits (but no point in using because of the internal ratio), and I would be pretty sure with minimal effort pretty much anything else would fit. Like above, the question is if there is any point. Xray is one of the most refined diffs (and brings the internal ratio higher a tad), the Schumi is even more refined and improves the ratio even further. Otherways, there is little incentive to fiddle around (apart from the aesthetics, but I leave that to each and everyone).

Tamiyas blue metal is also consistently anodised the same tone. My BD7 had 3 different shades of blue anodising

I have put aside $600 in a very secret place for this kit. All I have to do is not spend it buy December

Seriously, why can't they release it sooner, Yokomo and Xray are not making their customers wait this long