Monthly Archives: September 2015
Finally Andreas Myrberg’s AME Project IRIS has gone live.
Check out the full size renderings by clicking the pictures below.
After that, check out the Kickstarter crowdfunding page with the story behind the car.
Finally, choose your option of supporting Project IRIS on the Kickstarter page!
Really great to finally see some decent new ideas combined with common sense when it comes to 1/10 TC, and I very much hope this project will be a success for Andreas!
Absolutely nothing interesting to show it would seem.
Just a beautiful paintjob from the Kyosho Plazma Ra2.0 presentation.
Another Futaba 4PXR picture from the All Japan Hobby Show.
Source: Hobby Shop Pit-In
The most interesting part of the (for me) very short 2015 RC season, was to test the car you’ll see below, the 2016 FF test car – the FF-04 EVO G4.
All this goes back to well over a year ago when we started to think about how a 4-gear transmission would work on an FF chassis, since they have been very effective on mid-motor rear wheel drive buggies. When the TRF201 XMW was realeased, and I had the chance to assemble a gearbox, we took the next step by checking if it would be possible at all, and then the required parts were designed early this year.
A 4-gear transmission means that the motor, when in the car, turns in the opposite direction compared to the usual direction; i.e. with the 4-gear transmission the rotor of the motor rotates in the same direction as the wheels of the car. This has been found to improve traction on mid-motor 2wd buggies, hence the idea to try this on an FWD touring car as well, since they suffer from quite a bit of wheel spin despite the lowish power we run on these cars.
The TRF201 XMW gearbox (also later used on the TRF211), is in many ways ideal for this project, but of course being the made for a totally different car it is not a straightforward job to fit into an FF chassis. Some of the good points of the XMW 4-gear gearbox is that it was designed to hold the motor as close to the diff (rear axle on the 201/front axle on this car) as possible, it also has the motor in the absolute center of the car, and as it is made from aluminium it is a very precise and solid gearbox, while still fairly light. As it also uses the same TA06 diff as used on the Tamiya FF cars and finally looks very good black anodised, it was the availability of this gearbox that made testing this concept a reasonable project.
So once we figured out it could be possible, I sourced all of the required special order parts for the gearbox. As the Tamiya FF-04 EVO production car was realeased late last year we decided it would be the best platform to do a comparison test with, and therefore proceeded to design the required parts so we could test this on the FF-04 EVO base.
The major parts designed and made were; lower deck with new mounting holes for the TRF201 XMW gearbox, upper deck to fit the new front mounting points, and a damper stay to fit the gearbox. In addition we had to have some posts for the upper deck front mounting points and use TRF419 separate suspension mounts, turned the “wrong” way, behind the front arms. We used the bumper from the TRF417FF and a temporary front roll-bar mount (which can not be seen in these pictures).
Additional improvements compared to the normal FF-04 EVO, coming as a side effect of using the XMW gearbox, is that the motor is as I already mentioned in the absolute center of the car, something neither the FF-03 or FF-04 have had. The motor position is also, using the 201 XMW motor plate, 3.5mm lower than the very high position of the FF-04 EVO. This is what required us to use the same modified bumper as on the TRF417FF, as height-wise it’s the same as on the 417FF.
Having recently run the standard FF-04 EVO to get a good base setup, I was quite comfortable with the car and happy with how it felt on track, so the next step was to convert the car using the mentioned parts for the 4-gear gearbox.
Putting the car on the track for the first time, was, as always when testing new ideas, super interesting. I must admit my expectation this time was that the difference would be very small compared to the standard FF-04 EVO, but to my surprise I could feel a difference straight away. The car clearly had a different feel on-power, and also super precise during braking and turn-in. Lap-times were good from the start and I had a lot of confidence in the car. With a bit of setup work and experimenting the car was very soon really good.
To get an even more direct comparison I run the car back-to-back against the TRF417FF, which I had also done while testing the standard FF-04 EVO. Since I have run the 417FF as my FF car for 2 years now I know that car inside-out and it is very well setup. But our FF-04 EVO G4 proved faster, even though with the limited setup work the balance was not quite as good yet. No doubt a big part of this came from the improved traction of the FF-04 EVO G4, as the difference was very obvious compared to the original FF-04 EVO and the 417FF. Much less wheel-spin!
I’m also fairly sure the improved feel and response both on throttle and brakes is part of the better lap-time. It is obviously hard to know what contributes exactly to what. No doubt the fact that the motor is exactly in the centre improves stability, but how much each of the differences contributes to the different carachteristics on track is impossible to say.
What we can say though, is that the FF-04 EVO G4 has again been an FF project with very good results so far. Since this first step was only meant as an easy way to test the 4 gear concept, with the layout taken straight from the FF-04, there are already many things that can be done that will easily improve the car.
The FF future is again very exciting!
Now finally, the pictures of the FF-04 EVO G4 2016 FF test car, as it looked when first assembled. I will post a follow-up later with the car as it is currently.
For my second testing session of this summer I concentrated on the FF-04 EVO.
The one major change I have made to the car was to turn the rear arms around, so that they’re the way they’re supposed to be, and the way they are on the TRF418 and TRF419 where these arms were first used. This moves the damper moving point to where it usually is. This change ideally requires the FF-03 EVO rear damper stay (#3408009), which you can see in the following pictures, but no other parts (*edit – I also used FF-03 rear body posts). With this change I run the rear dampers at 63.0mm long, to make sure the damper length does not limit droop.
Before this change of rear damper mounting point I could not get the FF-04 EVO to handle satisfactory, but after the change it was alreay a very good handling FF car. So it’s very much a worthwhile change. Why Tamiya did not design it like this/include this part from the start, I simply cannot understand…
The other thing that I’m disappointed with on the design of this car, is that Tamiya did not make the very small effort it would have required to lower the motor position. All it would have required in its simplest form would have been an alu bumper mount together with a carbon plate to go where the standard (taken straight from the XV-01) bumper is. And obviously a re-drilled/machined motor plate. Would not have thought this would have been an insurmountable task for Tamiya…
Because the fact is that the couple of mm the motor is higher on the FF-04 EVO campared to our TRF417FF, is obviously very much noticeable on the track in that the FF-04 EVO will roll over much easier.
Anyway, the FF-04 EVO is now already very good on the track, so for the next test I look forward to testing some completely new FF FWD ideas…
For the first time ever I started the ‘summer’ season in September this year 😐
Lack of time, lack of motivation, circumstances, bad weather…lots of reasons, but of course not ideal living in this climate to leave it so late. But better late than never, and I can report that FF FWD TC is still as great as it ever was.
Last week I started by back-to-back testing Tamiya’s offering – the FF-04 EVO, vs. our original TRF417FF project car. To cut it short, the 417FF was still much better on track than Tamiya’s offering.
As you can see we have updated the TRF417FF for this year with a few parts from the FF-04, which I had previously missed on the 417FF. Mainly the alu front bulkhead, and then a new upper deck to go with it. Aside from the obvious benefits of this part, it also allows a better roll-bar mounting as well as front upper arm inner mounting.
I also added the left carbon motor stay support in place of the original XV-01 plastic part.
PetitRC have made a good page with pictures and setup from Naoto Matsukuras TRF419 @ the JMRCA TC Championships – all taken from Naotos facebook page – but useful to have posted in one place.
Check out the page for all pictures and the setup.
Not one single interesting item so far… 😐
Below is a list of items planned for exhibition by Tamiya at the All Japan Model & Hobby Show 2015 to be held on September 26 & 27, 2015.
New Releases R/C
1/14 R/C Star Unit Lightning Hawk
1/10 R/C Mazda Roadster/MX-5 (M-05)
1/10 R/C Monster Beetle (2015)
1/24 R/C Heavy Dump Truck (GF-01)
1/10 R/C Nissan GT-R (TT-02D) Drift Spec
1/10 R/C Motul Autech GT-R (TT-02)
1/10 R/C Suzuki Jimny (JB23)
(Metallic Blue Painted Body) (MF-01X)
1/10 R/C Toyota Land Cruiser 40 Pick-Up
(Red Painted Body) (GF-01)
1/10 R/C Toyota FJ Cruiser Black Special
(Painted Body) (CC-01)
1/14 R/C Tractor Truck MAN 26. 540 6×4 XLX
Gun Metal Edition
1/10 XB Petronas TOM’s RC F (TT-01 Type-E)
[OP] GF-01 Aluminum Oil Damper (4pcs.)
[OP] TT-02 Type-S Aluminum Upper Arm Mount (2pcs.)
[OP] GF-01 Camber Adjustment Arms (Front & Rear)
[OP] 4WD Buggy Aluminum Hex Hubs (Front)
[OP] Buggy Aluminum Hex Hubs (Rear)
A bit more info on the last parts in that list, which will finally sort out the wheels on TRF off-roaders.
54669 Buggy Aluminum Hex Hubs (Rear)
These blue anodized aluminum hex hubs allow attachment of compatible front wheels such as those from the DB01RRR chassis kit (Item 84421). Hex hubs provide highly secure wheel attachment compared to stand alone pin attachment.
Blue Anodized Aluminum Hex Hub x2
Wheel Nut x2
2×9.8mm Shaft x2
1.6x5mm Cap Screw x2
5.×0.5mm Spacer x2
Compatible with TRF201, TRF211, TRF502X, TRF503, DB01 and DB02 chassis cars.