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Old 05-06-2004, 02:42 AM   #4381
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Quote:
Originally posted by syntex1
your money would be better spent on bevel gears, hubs, arms and cvd's
I agree, i bought some of the rc square knuckles when the car first came out, thinking the standard might be a little weak like the tc3 ones. but the standard ones are strong enough not to need alloy ones. My alloy ones are still in their packet.
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Old 05-06-2004, 03:11 AM   #4382
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quick question. do the tamiya derlin rear outdrives fit the pro 4?
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Old 05-06-2004, 05:48 AM   #4383
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snoopy, want to sell me your aluminum ones?

I broke my knuckle first outing aluminum knuckle is very hard to bend I find.

venom, I doubt it but you can always try
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Old 05-06-2004, 08:21 AM   #4384
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i think....a BIG think HPI have some delrin outdrives in production.

as hara was using some at the pre worlds....not sure if they were pro3 ones or actually pro4 ones in development.
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Old 05-06-2004, 08:59 AM   #4385
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I very much doubt that they will be the Pro 3 ones, but possibly.

Does anyone know if they made Pro 2 delrin outdrives because the Pro 4 ones aren't far at all off the Pro 4 ones.

As said before, it will be more likely to be a HB part as the Pro 3 one was too.
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Old 05-06-2004, 09:16 AM   #4386
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A BMI equipped, but all plastic parts Pro4 put a whoopin on everyone at our track last night (carpet/foam tires). The only mods to it was the HPI 2.0 rear toe-in block. It was the racers first time with the car and he lapped consistently as fast as anyone has run on this layout with a Tc3. Even the sponsored guys. The Pro4 rally turned some heads last night.

Ray
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Old 05-06-2004, 09:37 AM   #4387
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Ray:

I got to put a pack on my 4 last night I can say that the chassis and the tow block have made a maked improvement on a good car to begin with. BTW who was the driver?

Luis
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Old 05-06-2004, 09:37 AM   #4388
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yeah ray, pucho,

i didn't get to watch jimmy hermann run since i was chasing him all night, but he was more consistent last night than i have ever seen him. and every bit as fast. neither one of us contacted anything, and he had 8 seconds on me after the five minutes was up.

this was the first hurting that a pro4 has delivered at the gate.

things are looking up.
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Old 05-06-2004, 10:32 AM   #4389
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Default Spring rates

Hi all. does anybody know the Pro4 spring rates in lb/in ?
If somebody does it would be a great help, Cheers
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Old 05-06-2004, 10:37 AM   #4390
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Default Re: Spring rates

Quote:
Originally posted by X2
Hi all. does anybody know the Pro4 spring rates in lb/in ?
If somebody does it would be a great help, Cheers
To convert gr/mm to lb/in
gr/mm divided by 454 x 25.4 = lb/in

from lb/in to gr/mm
lb/in divided by 25.4 x 454 = gr/mm

hope this helps.
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Old 05-06-2004, 10:53 AM   #4391
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Quote:
Originally posted by syntex1
your money would be better spent on bevel gears, hubs, arms and cvd's
...and HD ballcups
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Old 05-06-2004, 10:58 AM   #4392
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Default Thanks Zombie and Pops!

For the advice. I started to build a ball diff out of spares I have here, since I have Pro 4 outdrives and an extra gear and a bunch of everything else from the 2 and 3...something went awry (haven't checked it out yet) and I ended up with a spool...LOL

Sooo....how are spools for low traction?

Whatever I did wrong, it locked solid in 1-2 turns of the screw.
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Old 05-06-2004, 10:59 AM   #4393
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Default Re: Re: Spring rates

Quote:
Originally posted by rc-zombies
To convert gr/mm to lb/in
gr/mm divided by 454 x 25.4 = lb/in

from lb/in to gr/mm
lb/in divided by 25.4 x 454 = gr/mm

hope this helps.
Yes Thank you
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Old 05-06-2004, 11:20 AM   #4394
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Default Re: Thanks Zombie and Pops!

Quote:
Originally posted by Turbo Joe
For the advice. I started to build a ball diff out of spares I have here, since I have Pro 4 outdrives and an extra gear and a bunch of everything else from the 2 and 3...something went awry (haven't checked it out yet) and I ended up with a spool...LOL

Sooo....how are spools for low traction?

Whatever I did wrong, it locked solid in 1-2 turns of the screw.
maybe you forgot to put in the thrust bearing spring... I built one up from spare parts as well..and I forgot the spring...and it locked up...
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Old 05-06-2004, 12:05 PM   #4395
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Default Re: Re: Thanks Zombie and Pops!

Quote:
Originally posted by rc-zombies
maybe you forgot to put in the thrust bearing spring... I built one up from spare parts as well..and I forgot the spring...and it locked up...
The spring is in there...I might have used the wrong bearings. Makes a really nice spool, though.

Would a spool work in a low traction parking lot?
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