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Old 12-07-2003, 11:23 PM   #1081
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Anti squat

Anti squat ........should give you more steering late in the corner,
(it will square the corner off) then it will give the car more traction
on the exit of the corner.
If you add what they call kick up in the front (front of hinge pin higher then the rear) you increase your turn in.











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Old 12-07-2003, 11:45 PM   #1082
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Maybe someone from HPI can chime in to clue us in on if HPI plans to produce an R40 tuning guide?

That sure would be handy..??

With wet weather it is hell to get any track time to reverse enginer the cool options..
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Old 12-08-2003, 01:11 AM   #1083
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Sorry to bring up a negative tone once again... but I pose this more as a question than a gripe.....

The R40 designers love the "load bearing screw" design, i.e. a part is fastened together and any shear load is also placed on the screw. Take a look at the attached pic for example, the Serpent 710 bulkhead/centermount has a key around the screw hole that goes into the larger hole in the side brace. On the R40, the side brace is simply bolted on with no keys to align it or help bear load.

Aside from the side brace, the R40s top rear front hinge pin brace, shock towers, etc are also like that......

So my question is for those who've driven/crashed the car. Do you get any bent screws?

Nevertheless, the whole car is still very solid and at least HPI keyed the bulkheads to the bottom chassis
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Old 12-08-2003, 02:33 AM   #1084
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Default belt size

can anyone tell me what length rear belt is R40 (in mm please)

also how many tooth on the rear diff pulley
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Old 12-08-2003, 03:03 AM   #1085
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Default Re: belt size

Quote:
Originally posted by tl2111
can anyone tell me what length rear belt is R40 (in mm please)

also how many tooth on the rear diff pulley
No idea on the belt size but the rear diff is 46T.
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Old 12-08-2003, 05:47 AM   #1086
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Quote:
Originally posted by boom
Sorry to bring up a negative tone once again... but I pose this more as a question than a gripe.....

The R40 designers love the "load bearing screw" design, i.e. a part is fastened together and any shear load is also placed on the screw. Take a look at the attached pic for example, the Serpent 710 bulkhead/centermount has a key around the screw hole that goes into the larger hole in the side brace. On the R40, the side brace is simply bolted on with no keys to align it or help bear load.

Aside from the side brace, the R40s top rear front hinge pin brace, shock towers, etc are also like that......

So my question is for those who've driven/crashed the car. Do you get any bent screws?

Nevertheless, the whole car is still very solid and at least HPI keyed the bulkheads to the bottom chassis
That si one good thing about the car..it is REAL sturdy...MY tc3's,one some board hits,would tweak so you'd have to trim the steering a couple of clicks(Futaba 3pk)....At the HPI worlds,I whacked the boards a few times,and the car never changed direction,and every night it would be in adjustment....the only problem is the rear upper ball cups..the upper rods will compress...but I fixed that problem the first week I had the car..
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Old 12-08-2003, 08:01 AM   #1087
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Quote:
can anyone tell me what length rear belt is R40 (in mm please)
Length: 189mm (7.44")
Width: 5.5mm (0.236")
Teeth: 63
front and rear belt are same size


rear Diff: 46T
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Old 12-08-2003, 09:35 AM   #1088
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I see a lot of people asking about a setup guide for the car. Is that because you struggled with finding a good setup for the car, or you simply want a setup guide that fully explains all the changes that can be made on the car?
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Old 12-08-2003, 09:40 AM   #1089
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How do the knuckles/rear hubs and pivot balls hold up on the car. I run a pretty consevative line with my nitro cars, and we use corner dots at our track, so breaking knuckles/rearhubs really isn't much of an issue. But just for the sake of knowledge, how prone are they to pull themselves off over the pivot ball? Also, how prone are the pivot balls to bending?
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Old 12-08-2003, 10:01 AM   #1090
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i think people want a guide that details what handling changes can be made with all of the available tuning options. i know i don't have the time to experiment with them all.

the knuckles are fine. i wacked the boards good a few times. i popped one off once but never bent the pivot ball.

not a problem in my book, hit anything hard enough and it will bend or break. the car is plenty durable.
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Old 12-08-2003, 10:24 AM   #1091
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I have had this problem twice, but both times, it was because I hit the board the wrong way. (If there is a right way to hit a board). anyway, never had any problems with the pivot ball bending.
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Old 12-08-2003, 11:16 AM   #1092
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Hey it must be durable. Contender is a total hack! If he can't break it nobody can
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Old 12-08-2003, 12:02 PM   #1093
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Quote:
Originally posted by treky11
Hey it must be durable. Contender is a total hack! If he can't break it nobody can

HA HA HA
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Old 12-08-2003, 02:11 PM   #1094
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Quote:
Originally posted by Darkseid
I see a lot of people asking about a setup guide for the car. Is that because you struggled with finding a good setup for the car, or you simply want a setup guide that fully explains all the changes that can be made on the car?
The car runs fine the way it is, stock.

I'm just curious as to what all those tuning options will do.
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Old 12-08-2003, 03:12 PM   #1095
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graphite towers are in stock at Tower, but in limited supply.
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