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Old 04-20-2004, 04:04 PM   #31
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Quote:
Originally posted by 2Fast4U2
AMG: It does not overSteer at all. I have never had to much steering out of the car. The rear of the car is alwasys been hooked up. When the traction is low. It just pushes.
Cool, glad that it works for ya! Have fun racing.
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Old 04-20-2004, 04:07 PM   #32
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Quote:
Originally posted by Taylor-Racing
We also use the negative diff in a V-One RR/EVO.
I like the idea of the linear friction effect, dependant on revs. My driver thought the effect was rather mild, though. I've since installed some extra weight in the clutch shoes and this accentuates the clutch take up nicely.

You have me wondering about a "solid lock" arrangement like the 2-speed.
This might be good if you could control/tune it sufficiently. I have visions of a medium sweeper where you don't want the gearbox to change and the prospect of the diff locking a split second after might be hairy. . . . anyway.
Yes I totally agree with the mild effect. Which is why I think that engine/gearing/tires will have a very minor effect. The weight into the shoes idea is a very good idea. I never actually tired that one. In fact I prefered the TCD gearset in my V1R in the end.

I think an open diff that suddenly locked would be tough to drive. I used to have a "detroit locker" in a street car of mine. These are a spool that lock when torque is applied to the diff (similar to this idea). Worked very nicely in the dry, was a deathtrap in the wet. Don't know how that would apply to RC cars, with the 4wd it might work well!!
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Old 04-20-2004, 08:45 PM   #33
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Quote:
Originally posted by Taylor-Racing
You have me wondering about a "solid lock" arrangement like the 2-speed.
This might be good if you could control/tune it sufficiently.
Sure everyone have their own prefferences. As for me, I prefer to take control over it rather than being controlled by it.
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Old 04-20-2004, 09:14 PM   #34
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O.K., I just ran in the N.S.W. Titles on the same track as the 1/8th World Champs a couple a years ago, very fast, very high traction, very testing and the best drivers around Oz racing. Used the Kawahara diff and finished 4th after holding down third till I parked it. Used 3,000 wt. diff oil. The car gave a little twitch about 6 meters onto the main straight that went away with a drop of oil onto the diff clutch shoes. Next race meeting at my local club, tight, twisty, very little grip, ran 35 shore tyres, won by a fair amount and posted the fastest lap of the day. I did not change the diff at all. The diff seems to be able to compensate for a variety of conditions. I don't for a moment think that this diff would be faster than a well set gear or ball diff but I hate rebuilding diffs and it really gives me one less thing to stuff up. If your not sure of what effect changing diff oils will have then this product is worth the investment.
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Old 04-20-2004, 09:18 PM   #35
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Quote:
Originally posted by rjl
I did not change the diff at all. The diff seems to be able to compensate for a variety of conditions.
Yes this is the key point that I was saying above. I ran like you a vast array of motors, tires, gearing and tracks with the same diff (mine was merely lubed with anti-wear only) and the diff compensates for the available grip somehow. I don't really begin to understand it myself, but it works great on low and high bite situations.
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Old 04-21-2004, 07:15 AM   #36
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Quote:
Originally posted by AMGRacer
Yes I totally agree with the mild effect. Which is why I think that engine/gearing/tires will have a very minor effect. The weight into the shoes idea is a very good idea. I never actually tired that one. In fact I prefered the TCD gearset in my V1R in the end.
Take out clutch shoes, place one shoe on top of the other so that you can use the existing hole as a guide to drill through the lower one - 2.5mm drill.
Screw in a couple of short 3mm grub screws and reassemble.
I'm thinking of going up to two grub screws per shoe. If it's too much, they're easy enough to remove.
Haven't tried the TCD gear set . . . . yet.
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Old 05-29-2004, 02:51 AM   #37
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You could also sand down abit.. just a little bit on the internal housing for the shoes to bite abit more
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Old 05-29-2004, 03:45 AM   #38
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Hi I have just got into this sport and what can I say just AWSOME!!!! I am having a hard time find any one in OZ that I can buy the neg diff for the mtx-3, can any one help?
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Old 05-29-2004, 05:32 AM   #39
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Quote:
Originally posted by omy-gtr
Hi I have just got into this sport and what can I say just AWSOME!!!! I am having a hard time find any one in OZ that I can buy the neg diff for the mtx-3, can any one help?
Just send a PM to "rjl".
He can fix you up.
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Old 06-21-2004, 04:17 PM   #40
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Have any of you guys actually built the negative diff for a MTX-3? I got mine here the other day, and I'm trying to get it together, but it seems impossible to get the pin behind the clutch trough the diff-adapter. Ideas anyone?
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Old 06-21-2004, 05:26 PM   #41
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Quote:
Originally posted by rjl
Now that's just showing off.
Yup!
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Old 06-22-2004, 11:02 PM   #42
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