jorgesimes

I honestly think both of your sentences are correct, i use mines with 1.5mm shims with 0.5mm anti dive front, but race only on asphalt.

Johnny Wishbone

iTrader: (6)

Jorgesimes is correct on the arm orientation, the ball stud for the torsion bar mount only allows for the arm to be mounted one way only.

TC5 "roll center too low", well its definitely lower than what we had before, but also consider that its easier to add shims to raise it, then wishing that you could get the mount lower than what you had. So saying that, if your coming from a previous car, you'll find that you need to add 0.5mm shims to get a similar setup. The ability to go lower, or to run the mounts without shims should be a benefit if your running on high traction such as CRC Black carpet, and your having traction roll issues.

TC5

Thanks Chaps , with regards to the ball stud for the ARB , you can mount this with the arm flipped - just trows the angle out - correct ? Actually a better angle than stock. In the kit position the links lean outward if you get my point.

I will try 0.5mm mount shims and revert back - all this time I have been using 1mm

TC5

Hi Jorge,

Any specific reason for the anti dive ? I only race outdoor asphalt as well. Generally low to medium grip.
I have changed the shock pistons to 3x1.0mm from the kit 4x1.0mm (are those the measurements ? ) The three hole works much better with the PSS - I also heard the three hole was in the prototype kits as well.

Regards

Johnny Wishbone

iTrader: (6)

Better if you have a ball stud the correct diameter for the arb ball cup, you could mount the link on the outer hole of arm and not have the excessive angle.........(this may be what you mean already, idk)

The 3 hole are the preferred pistons, they pack better. The 3x1.0 means 3 holes each being 1.0mm diameter.

Antidive will settle the rear of the car during braking as well as plant the rear a little better on acceleration.

jorgesimes

Johnny answered the theorical part of it, but i have been using anti dive since i had a TRF416, so long way ago, for me it works better, maybe because of the tracks i race or it just suits better my driving style. Sorry but you have to test it.

I have been running 1.5mm because i did some measures with the rccrewchief software and that was the only way i could achieve values next to most TC cars, but again i only race outdoor asphalt.

EDIT: Sorry my shims are FF0.5 FR1 RF1.5 RR1.5 in mm

Johnny Wishbone

iTrader: (6)

Yes RCCrewchief confirms the lower than normal roll center...........or at least from the previous models, I see some of the new cars are following that trend and the lower suspension blocks are around 0.5mm lower than previous versions. Pretty sure its due to the high traction surfaces that we seem to run on lately.

TC5

Yeah , found that out early , the 3 x 1,0 worked way better than the 4x1.0 .

I will try the anti dive .

TC5

Thanks for this Jorge

What RC are you chasing ? With my latest set up , I am after -6.57 front and -6.29 rear with a 47.16 % F/R Roll couple and 1.00 Chassis roll sensitivity.

Is there some where I can send my RC3 chassis file to for review ? I will also send to Bob for up load - have a look at my dimensions. A 1,5mm pin shim gives ~ -3.5mm RC

Kind regards

TC5

Yeah , according to ex-team drivers this helped with front end smoothness and bite at the same time

jorgesimes

Well since there isn't any "standard" values, i looked into the xray values. T4'17 kit setup is -5.46 front and -4.93 rear with 46.13% F/R Roll and 1.00 CRS. A setup from Bruno gives -5.81 front and -4.18 rear with 45.48% F/R Roll and 1.01 CRS. So i worked on something around this numbers, but i did some "changes" to standard manual car, like 0.5 shims between front hub and conical shim, steering carbon arms under the front hubs, rear hex wheel plus 1.5mm spacers and 1mm shims below the top deck.
You can pm your email and i will also send you my files.

Airwave

iTrader: (1)

It is very interesting, but how can you correctly place the center of mass? I'm not sure the D10 has the same as the D09...

Johnny Wishbone

iTrader: (6)

I tried the 1mm under the top deck on mid traction carpet track and the consistency of the car went out.....took them out and the car was back on song. Strange as it has helped out on other cars I've run. I'm hoping that VBC releases a 1.6 top deck just to try out, but I think it needs to be reconfigured a little bit as well.....maybe connected in some mid points with the option to cut it for flex. Victor said they are working on several items with some new releases to come.

Johnny Wishbone

iTrader: (6)

If I understand your question, its part of the initial model setup information entered when you configure the rccrewchief program.

Johnny Wishbone

iTrader: (6)

I also follow what some of the other numbers are from other drivers setups, but I also fall back on the guideline that Bob suggests. The dynamic model really shows some good information as a reference.