fyrstormer

iTrader: (1)

Terrible luck how? Is it breaking from cornering forces, traction-rolling, hits from other cars, or are you just crashing a lot?

Regarding the bumper, remember you can stack multiple bumper foams on top of each other, you just need to get some 10mm standoff spacers to put under the top-plate that holds the bumpers in place.

Kahmed79

iTrader: (1)

Just a lot of bad luck I'm guessing, am crashing into the barriers but not even that hard. But we will see if the new bumper setup helps me any.

PIIHB!

iTrader: (14)

Tower has the R version for preorder @ $440...

Tom1977

The new TA07 carbon stiffeners just arrived!

Tom1977

Kahmed79

iTrader: (1)

That looks sweet! Where did you get the parts from?

Tom1977

From my 1st adress dealer in Germany. Has nearly everthing from Tamiya. Similar to TQ.

Tamiya - 54788 Versteifung Carbon vorn TA-07 (58636) - Modellbau-Seidel

Tamiya - 54789 Versteifung Carbon hinten TA-07 (58636) - Modellbau-Seidel

Qatmix

Unfortunately they do not ship to the UK anymore

Kahmed79

iTrader: (1)

Lucky! I wish there was a similar place here in Michigan.

JoshuaRC10

iTrader: (4)

Is there any weight savings with this, or just an increase in stiffness?

Tom1977

I didn't weight them but from my feeling there is no significant weight saving. They stiffen up the chassis much more then the carbon reinforced plastic parts. Its 3mm carbon.

fyrstormer

iTrader: (1)

I doubt they contribute much stiffness either. Carbon-reinforced-nylon has significant stiffness in all directions, whereas woven carbon-fiber only has significant stiffness in the directions of the weave. Woven carbon-fiber flexes pretty well perpendicular to the weave (in the case of these parts, that would be vertically), a property which has been known and used in motorsports for decades in applications such as hinge-less suspension arms for F1 cars. I've had a couple Tamiya cars where I switched back to the carbon-reinforced-nylon shock towers, because the woven carbon-fiber shock towers twisted and behaved like undamped springs when the necessary offset spacers were installed to position the shocks correctly.

Mostly woven carbon-fiber just looks really cool.

dmcguire

iTrader: (38)

Doubt it's an issue, but does using those carbon fiber braces still let this car be a "tub" chassis car in TCS' eyes? Tub cars only in GT2 and no minimum weight in GT1 with a tub car. Assuming it does not change anything, but just curious if there's an official answer.

Kahmed79

iTrader: (1)

Interesting stuff! Maybe chopped carbon fiber would work better?

fyrstormer

iTrader: (1)

I'm not sure what you mean by "chopped carbon fiber".

The main advantage woven carbon-fiber for our hobby is it can be machined like sheets of aluminum, and it is significantly lighter than aluminum, which makes it a natural upgrade for designs that originally used sheet-metal. (it's even electrically conductive on the edges where the carbon fibers are exposed, if that happens to be a useful property.) Carbon-reinforced-nylon (and most other plastics) require injection molds, which cost a ton of money to make, whereas a CNC lathe can crank out precision-cut sheets of woven carbon-fiber in any design simply by being reprogrammed.