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Old 06-11-2002, 05:42 PM   #166
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Quote:
Originally posted by spongebob
Great book, can you also make one for offroad, a lot of the same things apply except offroad adds in jumping and landing.
And sliding on the roof, at least when I try to race offroad.

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Old 06-14-2002, 11:23 AM   #167
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Nice thread...up!

Oh yeah, Martin this is dave, seems like your book we talked about at the Roar carpet Nats is doing well. Hey, where's my copy? LOL, hehehe. Did you go to the worlds?
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Old 06-19-2002, 01:23 PM   #168
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ttt
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Old 06-20-2002, 09:41 PM   #169
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sponge ......... i think whet he ment was front and rear to the outer side compress off power on entry
and decompression of the front and rear upon exit ....... coz when there no extra force applied to it during a turn for an example acceleration or hard braking it would be neutral and decompresssion and compression would be equal for front and rear ......depending of course on shock settings and weight balance around the car but all things being equal ...
the decompression and compression are also equa lprovided no braking or acceleration is applied

alvin rebound stroke = DROOP
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Old 06-20-2002, 09:55 PM   #170
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imataquito you are so hard to understand.
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Old 06-20-2002, 11:38 PM   #171
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how do u stop a sedan from traction rolling on carpet. when big races come around my car will traction roll when rubber is laid down, how do i stop it?
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Old 06-21-2002, 08:35 AM   #172
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Lower ride height, raise roll center, limit the droop.

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Old 06-21-2002, 09:48 PM   #173
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......... um ..................... is it REALLY THAT HARD to understand what i am saying ?

OMG ....

well just read the words line at a time and imagine the car going into a turn .. with all the suspension parts working in a slow motion

think u will get what i am saying ....

also try getting some japanese VCD that explains something about the geometry of real race cars ....
i used to have it ... i dont understand a word and now i lost the damn CD
but hey ...... its mostly on basic logic so the animation of the cad drawings kinda gives me the idea whats its trying to say

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Old 06-21-2002, 11:21 PM   #174
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raise roll center? or lower roll center
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Old 06-24-2002, 11:59 PM   #175
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RAISE ... it gives u more grip
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Old 06-25-2002, 12:14 AM   #176
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but isint a traction roll the affect of having too much grip?
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Old 06-25-2002, 12:18 AM   #177
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I wonder how much can be said about a line.

I run a Pro10 (1/10th pan) road course (SoCal) with MarkA who pretty much cleans us up with every race.

It's not the cars - they are all pretty much exactly the same.
It's not the tires - we all use the same tires.
It's not the sauce - again, all the same
It's not the motors - he uses the CHEAPEST, CRAPPIEST motors
It's not the batteries - again, CHEAP, CRAPPY. . .well, not anymore - He's getting great SMC's - but I'm getting the same cells. . .

It's all, all, all line. After the race we all go out to eat and he will explain what he did, what we didn't do (he tends to come up behind 2nd place and just run there until the race is over. . .just watching. . .)

We (try to) find the line that will carry the most speed, the line that allows us to drop speed entering so we can grab throttle as early as possible so we can exit with as much speed as possible.

I do realize that setups are vitally important. No toe stepping here. Just bringing in the line again.

But, when I run my TC-3 and NTC-3 and apply the line (with obvious modifications for the car) I find that I go a lot faster.

Too bad it's not fast enough to actually WIN anything. . .
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Old 06-25-2002, 08:12 AM   #178
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First -- a "Thank You" to everyone for all the good information...

I just bought and downloaded the MPowered PDF file -- VERY good stuff!

I'm a "seasonal" visitor here, because our only touring racing is on parking lots and that means summer only here in the midwest.

After 3 years of racing my TC3's, I have to say that I still love this design, but the local top dog is running the XXXS. Tires, battery, motor, "setup" all play a key role, but in 3 weekends of racing this summer on the new parking lot layout, I've gained the most from "the line".

One key that is so easy to forget: "Slow is FAST"... When I start each season of Touring car racing, I ALWAYS overdrive the car -- it is so much FUN throwing the thing into a big 4-wheel drift, sliding through the turn and hammering the throttle to power out... BUT THAT'S NOT THE FAST WAY! As has been mentioned earlier, I can gain over a full lap by knowing when to let off (early) to set up the corner, so that I can cut a tight apex and power out smoothly without scrubbing speed.... Killer batteries or motors won't help if you run 2' wide in every turn and/or power slide through the turns scrubbing off speed...

Thanks again to all who have contributed, and keep it coming!
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Old 06-25-2002, 09:20 AM   #179
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OK -- I went back through this whole thread and didn't find a reference to a question I have, so here it is...

On the TC3 (and as far as I know, this applies ONLY to the TC3), there are two totally different "armed camps" in regard to spring balance front-to-rear....

Associated's manuals, etc. start with siffer springs on the front, and all the "official" setups have either stiffer front springs or the same springs all around...

However -- local racers (including ME) seem to agree with an old "How to Hook Up your TC3" article that was in Xtreme R/C a couple of years ago... We find that on the local parking lot track, the TC3 is "happier" and more "balanced" if the REAR springs are stiffer than the fronts...?

Is this some sort of "illusion" that has us fooled, or is there something unique about the TC3 suspension geometry that comes into play here? I know on my car that The "factory" style setups seem to be "tail happy" and very loose on corner entry, and push on corner exit, while the "backwards" setup is much more balanced, with more corner speed...

Whatsupwithat?
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Old 06-26-2002, 03:28 AM   #180
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tfrahm theres nothing wrong .....
i feel that my car understears if i have the rear harder then the front BUT

it has damn quick stearing response ( left to right )
and i could drivve like a snake moving without throwing the rear end a bit

and if i have softer springs in da rear ... it throws BUT front response is slower and i can do 4 wheel drift upon a very very quick entry ( flipped if not careful ) and punch full trottle and still have plenty of stearing if in case i want to overstear the car upon exit
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