Nerobro

iTrader: (2)

I want to see a MST TCR out there with a serious group of racers. If you're running in a weight controlled group.. you could have the CG really, really, really low.

sosidge

Then get one and get out there yourself!

sosidge

I've been running the FF-04 for a bit. It builds well and handles well. But I have a small doubt in the back of my mind about it's ultimate pace, its design is quite unusual (raised front motor with short overhang in particular), and it is quite heavy.

Based on the FF-04 thread and Kentech's blog there is the suggestion it lacks 0.5s+ a lap compared to more conventional layouts. I'll soon find out if this is true...

OVA

iTrader: (86)

That's true ..But not many kit sell under 200.00 FF04 EVO 200.00ish on sale .. the is rare sale
I like to keep my part or same brands able to share or interchange with my TC .....

1/8 IC Fan

iTrader: (102)

We keep playing with my sons setup on his BE FF04 Evo, trying to move both front and rear arms further forward. Not sure if it is possible lower the motor further given the location of the suspension mounts? Who knows perhaps a 3D printed test setup may work. We have even tried the SMC Lowrider 21.5T motor in an attempt to relieve some of the front axle sprung weight.

Billy Kelly

iTrader: (9)

sosidge

The FF-04 already has less weight over the front axle than the XRAY-style cars. 65/35 vs 70/30 more or less. So I don't know if even less weight over the front is necessarily the direction to go in. Probably depends on the track and your driving style. But the high CG is obvious even to the naked eye.

1/8 IC Fan

iTrader: (102)

main reason, we are trying to get the weight lower and see if the dive / weight transfer under braking subsides some, and eases some of the float seen on the rear end during the transfer of weight. If that makes a bit of sense.

Nerobro

iTrader: (2)

I have one. I'm not good enough to be a yardstick.

Airwave

iTrader: (1)

I think TCR will need a brass chassis first... Mine is 210g too light for FWD racing ;-)

gigaplex

iTrader: (2)

I've been meaning to try mine out with our spec FWD ESC/motor combo but haven't got around to it yet - too many cars, not enough time. We don't have a weight restriction for our class.

Nerobro

iTrader: (2)

I've made no efforts to make my car light. There's 40-50g of "stuff" on the car that can go. USGT has no minimum weight.... with the body on it, i"m some 200g underweight. ... sounds like a good time to buy some tugsten screws. :-)

Brass won't work for a chassis. But spring steel might...... Chassis material doesn't give you flexibility with CG location.

JoeyE

iTrader: (45)

What is better? Drive train driven by belt or all gear?

Nerobro

iTrader: (2)

Belts have fewer places to lose energy. Each belt or gear interface nets a 1-3% loss in torque. So long as the belt doesn't have high hysteresis, you're gonna be in better shape with a belt than a triple gear transmission.

Motor rotation direction could a tuning choice though.

JoeyE

iTrader: (45)

Understandable.

What about gear ratios? Would it be easier to gear a belt rather than a all gear from internal ratios?