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Old 02-09-2011, 04:40 AM   #2191
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cool, does running 2 ball diffs handles better than spool in front, ball diff in rear?
i wonder how front spool installed and how it change handling of our cr
you would get the same effects as running a spool in the front of a 10th scale TC

I tried a spool in the front of my CR, and actaully felt the car was faster with a diff up front - since I didn't have parts for anything else, I ended up with the stock gear diff up front, with a Pro4-modified ball diff in the rear...the car was great, i just ended up with too soft springs in the rear and the damn thing would keep lifting a front wheel on turns :x
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Old 02-09-2011, 09:55 AM   #2192
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is the pro 4 modify gear diff better than stock cr ball diff?
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Old 02-09-2011, 02:47 PM   #2193
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my new body, changed from short wheel base to long wheel base see if it will handle better.
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HPI Cup Racer 1M-cr1-9-.jpg   HPI Cup Racer 1M-cr1-10-.jpg   HPI Cup Racer 1M-cr1-7-.jpg  
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Old 02-09-2011, 09:44 PM   #2194
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my new body, changed from short wheel base to long wheel base see if it will handle better.
That looks really good man. Good job. I really like the green with white wheels.
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Old 02-10-2011, 01:47 AM   #2195
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thanks, i think it would look better with old school aftermarket wheels.

btw back of the car still slides on high speed corners. will need to work on it more
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Old 02-13-2011, 07:22 PM   #2196
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..nice car,
..mine too gets a little squirrely ...more so than I'd like. It's pretty good around corners, mostly on straights at full throttle it will tend to slide out. I am wondering if it's my street slick tires? -not enough grip?? -i've adjusted the shocks in all various combo of configurations (heavy springs, light ..heavy oil and light, etc).
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Old 02-14-2011, 12:02 PM   #2197
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what motor are you using? do you have boost?
hows traction, alignment, ride height, wheel base?
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Old 02-14-2011, 03:58 PM   #2198
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I only experience sliding when I go full throttle.

my spec's (now):

-Motor: Brushed 17t (going to switch to 27T Silver Can in a few months for the next race season ...so all my issues may go away w/ a slower motor).
-Shocks: aluminum upgraded, soft springs all the way around, heavy weight oil all the way around
-wheelbase is the short, I think that's 210mm
-tires are the HPI "M" road slicks, ...I am thinking of going to "S" as they supposedly have better grip which i'll want for race season (we race on asphalt)
..alighment is straight ...tuned via my radio controller.
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Old 02-15-2011, 11:40 AM   #2199
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try soak traction compound longer in the back.
also can try inner tower holes or thinner shock oil, check droop too
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Old 02-15-2011, 12:05 PM   #2200
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..nice car,
..mine too gets a little squirrely ...more so than I'd like. It's pretty good around corners, mostly on straights at full throttle it will tend to slide out. I am wondering if it's my street slick tires? -not enough grip?? -i've adjusted the shocks in all various combo of configurations (heavy springs, light ..heavy oil and light, etc).
Could be tires. Some tires balloon badly at high rpm. You might need some belted tires like sweep or atomic.
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Old 02-15-2011, 10:48 PM   #2201
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HPI Cup Racer 1M-pik1.jpg
hey guys this is what happens when u drink n drive, and for some reason the esc went bad. O and ripped the body
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Old 02-15-2011, 10:54 PM   #2202
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HPI Cup Racer 1M-pik2.jpg

here's the new body. i kinda turn it into a drag racer, theres about a dozen guys out here that like drag racing. like i said my esc doesnt work anymore.
i orderd a dynamite fuze 6800 bl system. anybody ever use one?
and i picked up old hpi mini 5 spoke wheels, and whats cool is hpi is rerelesing
the mini rs4 so maybe new bodys and wheels
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Old 02-15-2011, 10:59 PM   #2203
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HPI Cup Racer 1M-pik3.jpg
here's the new wheels, but kind find soft tires does anybody know if other tires will fit besides hpi? i rather find sliks but beggers cant b choosers,
thanks
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Old 02-16-2011, 08:53 AM   #2204
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Quote:
Could be tires. Some tires balloon badly at high rpm. You might need some belted tires like sweep or atomic.
-MikeR, This sounds very reasonable, as when I throttle my car while on a stand (and not the ground) the tires do balloon up quite a bit. This would make sense that at the point of full throttle and when the tires balloon that the car would slide out. -going to give that a try.

I will check out the tires you mentioned,

Yet do have a question about some of the tire designations I've seen on HPI's MX60 tires. they have "Drift" (I get that), "M", "S", and now "H" compound tires. I know "S" is stickier (according to their site, ...but how do they all rate, what is the M and H? -how do they compare to the S's?
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Old 02-17-2011, 04:37 PM   #2205
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..bumping this back up!

Quote:
Yet do have a question about some of the tire designations I've seen on HPI's MX60 tires. they have "Drift" (I get that), "M", "S", and now "H" compound tires. I know "S" is stickier (according to their site, ...but how do they all rate, what is the M and H? -how do they compare to the S's?
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