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Old 09-10-2007, 11:02 PM   #3346
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Originally Posted by CHRIS CHAVEZ View Post
Thank you very much Fred. I just placed an order for a PRS 100 tooth spur and a few 007 parts. Now i'll be ready for some racing this weekend. Yahoo!
Your welcome, Bob Stomer is a racer and has a good supply of the hard core parts.
Fred
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Old 09-10-2007, 11:57 PM   #3347
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wouldn't there be a problem with accessing the motor since you have to stick the allen driver through the spur to tighten or loosen the motor screws?

some spur gears have the large holes as well. if you do end up using the spurs with small holes, you can still remove the motor, but the screw will be left in place. so instead of pulling the screw, you can push on it instead while turning the screw then pull on the motor to remove it.
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Old 09-11-2007, 08:08 AM   #3348
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I am awaiting my new 007 and was wondering what the best rollout was for these cars? I would think nything under 0 would be best as this will keep the motor and esc as cool as possible. I am thinking the car will be coming with a 109 tooth spur so a 28 pinion would be in order. Does this sound correct?oh and I will be running Stock class foam on a tight course.

Thanks guys (sorry I am very new to this board)
Sean
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Old 09-11-2007, 11:25 AM   #3349
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Stickyfingaz: I think that it is your motor, just take it out of the car and spin the pinion gear with your fingers and you will know if its that. I have used similar motors and it happens. it is easy to fix, you have to take off the pinion and the front bell so the rotor fan is exposed, I have fixed it in several ways (1) Just taking out the rotor and putting it back in, (2) removing the center aluminum sleve of the can, and leaving it off (3) simply taking off the front bell and putting it back on. I think that the noise is just an alignment issue of the rotor. I think that no 2 works the best.

BSchorr: obviously the aluminum parts are stronger than the plastic, and the other advantage to the aluminum is the stiffness of the part. (example: if you ran aluminum rear uprights all of the flex is now coming from the arm only. on the track this should reduce the amount of rear grip (By Just a little) and make the grip more consistent do to the reduced flex. This is why alot of people use the aluminum parts with foam tires.
So you would use aluminum steering blocks and rear hubs if you ran on foam tires no matter what? Foam on asphalt and carpet?
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Old 09-11-2007, 12:46 PM   #3350
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hi guys, for me ackermann depends on the track size, layout, weather you run foam or rubber tires and weather your are running a spool,diff or one way.
There never seems to be one place that i always run it for any givin situation, but i can tell you my rule of thumb. i generally use more ackermann for rubber tires, i would say that 75% of the time i run the post back for rubber, and with foams the post is always forward. with a diff or one way it is a good adjustment to tune with, but any time i run a spool it is 5 times more important to get it right because it makes a bigger difference with a locked front diff than it will with a diff or a one way.
Hi Paul,
If Front suspenion mount shim to toe-out how ?

Thanks !
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Old 09-11-2007, 06:38 PM   #3351
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Chris Chavez I run a 100 tooth kimbrough on my 007 the spur is so small the only way to change pinions is to remove the top deck and lay shaft to access the motor screws it doesn't take very long but it is annoying if your running brushless a 108 will get you where you need to be with gearing
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Old 09-11-2007, 07:06 PM   #3352
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What brand shock oil do you normally run?
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Old 09-11-2007, 07:06 PM   #3353
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Originally Posted by Bull_Dog View Post
Chris Chavez I run a 100 tooth kimbrough on my 007 the spur is so small the only way to change pinions is to remove the top deck and lay shaft to access the motor screws it doesn't take very long but it is annoying if your running brushless a 108 will get you where you need to be with gearing
I've actually been running The 100 tooth "PRS" spur gear and it has the large round holes on it unlike the robinson spur. The nice thing about the "PRS" spur is your able to stick your allen driver through the large holes on the spur to access the motor screws without any problems.
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Old 09-12-2007, 07:09 AM   #3354
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OK I am still interested in knowing my first questions answer for the spur, but also would like to know what parts I should be looking into having in my box as spares for my car when I get it as the track I race at doesn't carry the parts.

Thanks

Sean
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Old 09-12-2007, 07:12 AM   #3355
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so far, with the horrid crashes i've had, i've only replaced the hub bearings, hub bearing plastic bushing (running alum front and rear hubs), plastic shock body, and suspension pin holders. might be a good idea to bring some chubs, arms, and spare spur gears though.
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Old 09-12-2007, 07:29 AM   #3356
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Originally Posted by VooDooPH View Post
so far, with the horrid crashes i've had, i've only replaced the hub bearings, hub bearing plastic bushing (running alum front and rear hubs), plastic shock body, and suspension pin holders. might be a good idea to bring some chubs, arms, and spare spur gears though.
Thank you, these aree the parts I was thinking but wasnt sure. Very normal then and thats great. I remember when I had my T1 how much of a tank it was.
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Old 09-13-2007, 05:32 AM   #3357
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Anyone have any idea what the ball bearings are made of? At a guess I think they're entirely made of aluminium, but even if they are, what type of aluminium?

I remember seeing 7079 aluminium mentioned in a magazine advert, but cant find it any more. May have even been another car for all I remember.

Just want to know because I modelled a 5x10x4mm bearing for a uni paper and need the right (or at least approx) material for the stress analysis.
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Old 09-13-2007, 07:11 AM   #3358
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hardend steel, usually something like 8620 alloy
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Old 09-13-2007, 11:57 AM   #3359
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anyone running a 10.5 in there 007, what spur/pinion combo you guys running
something to get me in the ballpark???
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Old 09-13-2007, 01:15 PM   #3360
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Quote:
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anyone running a 10.5 in there 007, what spur/pinion combo you guys running
something to get me in the ballpark???

I ran a 37T pinion and a 112 spur on a low-med traction asphalt track that was 12.6 seconds a lap. That 10.5 I borrowed from Lyman was fast. I should have gotten Bitter but I had old tires. Plus Bitter drove well...
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