Setup and MoTeC Discussions
Wed July 23rd 7PM PDT Live Session
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Posted by Steve Wood at 10:39 PM on Jul 22, 2008
Post #1

OK...the last time I did this I tried answering questions that were too complex. I'm running these sessions for drivers that want to have MoTeC open and ask specific how to questions. Please prepare for this session with a data file with about 10 laps of data.

Beginners should at least try to go through the basic MoTeC thread. Advanced users should already have that stuff down, but keep the questions specific...none of the "how does yaw help with springs" kind of questions since those questions are best put in their own thread and they take 1/2 an hour or more to answer. Let's have hands on questions like "I'm trying to display Yaw in MoTeC, but I don't know what the w unit means" or "I'm trying to compare two laps in MoTeC, but it's hard to read".

Posted by Andrew Carson at 12:31 AM on Jul 23, 2008
Post #2

Shoot Steve. I missed this. Was busy racing.
Can you give it another shot in a day or two?

Posted by Justin Rebelo at 12:50 AM on Jul 23, 2008
Post #3

Andrew: it's tomorrow night. :)

I'll be ready with some Montreal laps. Thanks a lot, Steve.

Posted by Andrew Carson at 01:01 AM on Jul 23, 2008
Post #4

Ha.... looked at the computer's clock and it said the 23'rd. :-)

Forgot its past midnight...

Posted by Steve Wood at 02:20 AM on Jul 23, 2008
Post #5

ROFL Andrew. Montreal laps would be excellent. I can point out how last weeks topic of adjusting dampers based on MoTeC ride height and suspension positions can eliminate the wobble on the last straight before the last corner.

Posted by Phillip Estrada at 01:52 PM on Jul 23, 2008
Post #6

Where do we get the Motec project so that we are all looking at the same graphs with the same properties?

I have not been able to figure out how or to get the damper graphs to work. I'd like to go over how you setup the dampers. It's painful to do a ton of laps just to tweak something and maybe not feel any change or know what to look at. I would really like to be able to make a change, go out and do a few laps and see something in the telemetry that would help improve the setup.

I race an F1 mod in rfactor.

Where is the information to join at 7PM? I would just go on the race2play TeamSpeak server?

Please advise.

Posted by Andrew Carson at 02:07 PM on Jul 23, 2008
Post #8

Well, it would be my luck that im gone from 6-9pm tonight. Guess I'll miss this as well.
I'll just ask my question now...

Camber.
I've never actually noticed a change in grip by adjusting it. And for that matter, I've only ever used camber to widen the range of tire temps (Inside Middle Outside) for a given tire.

I know that the point of camber involves getting the tire to contact fully with the road surface under cornering. So If I have -3.0 degrees of camber, and I go into a corner, and it becomes 0 degrees camber, then I've done everything right.. Correct?

How can I use motec to help with cambers? It's a big question, but I always overlook cambers.

Posted by Steve Wood at 09:57 PM on Jul 23, 2008
Post #9

OK...I'm here.

No voice chat...just refresh this page every minute or so.

Phillip...I'd rather that you have your own project and data...using someone elses project won't work as good as using your own. Same thing with setups...it has to be customized for your driving style, so you need to know how to work with workbooks and channels in MoTeC in order to focus on what you want to analyze.

Andrew...the sims really don't do a good job on tire data in my opinion. Ideally, you want to adjust your camber and caster to provide an even range of average heating on your tires...the outside of the outside tires will heat up a bit more on corners and then the insides will heat up a bit more on the straights. But, in the sims the goal is supposed to be keeping the middle temps in between the inner and outer temps with the inner temps adjusted for optimum grip temp.

Rule of thumb is to keep a difference of at least 6º between the inner and outer sections of each tire...most cars and tracks like around 12º to 15º on the outside front wheel (if the track has more left turns then the right front should have more camber)

Posted by Justin Rebelo at 10:03 PM on Jul 23, 2008
Post #10

Okay Steve. I have a set of montreal laps which are all fairly consistent loaded up. How do I identify if there's enough shake in the car to affect my stability on the straight? Or was that what you intended to illustrate?

Posted by Phillip Estrada at 10:05 PM on Jul 23, 2008
Post #11

uhhh... ok.. how about we use ventrillo? I can open up my ventrillo server.

I just found the thread of how Steve want's my Motec project setup so I'm feverishly doing it right now. Or can someone email it to me?

I am proposing that we talk via ventrillo and I will set up an online meeting, open up the motec project, give control to Steve and he can walk us through some stuff while we all watch?