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Old 12-13-2004, 10:10 PM   #31
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What diff r u running? I'm using the Duratrax ball diff. Other than that the car is stock. Im running a Purple People Eater motor, IPC V7.1 ESC, and I think they are Duratrax foams but im not sure. The track has 85 foot straights and the NASCAR guys run 4.7 second lap times.

My delphi: 4.5!!
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Old 12-14-2004, 02:55 AM   #32
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I am using the duratrax ball diff, it seems to work well,


rollout,

(58mm x 3.14)/(70/19) = 49

isnt that a bit high? (the motor doesnt get hot at all)
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Old 12-14-2004, 03:04 AM   #33
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Quote:
Originally posted by Rod M
I am using the duratrax ball diff, it seems to work well,


rollout,

(58mm x 3.14)/(70/19) = 49

isnt that a bit high? (the motor doesnt get hot at all)
Sounds ok for a stock motor.
For 12 turns we use rollout in the range of 35-42mm/rev
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Old 12-14-2004, 06:03 AM   #34
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thats high even 4 a stock motor.....we run around 19mm for mod/27mm for stock/40mm for 540
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Old 12-14-2004, 06:18 AM   #35
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Quote:
thats high even 4 a stock motor.....we run around 19mm for mod/27mm for stock/40mm for 540
yeah in touring car
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Old 12-14-2004, 02:14 PM   #36
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how much difference in rollout should there be for a direct drive car?
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Old 12-15-2004, 01:02 AM   #37
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You can't really compare touring and dircet drive rollout. A direct drive car has less weight and less drag in the drivetrain, but also slightly less forward traction.
Just stick to the general rules:
Gear up until your motor runs too hot, you can't make your runtime, or your laptimes start to suffer.
Keep track of the rear tires diameter, your rollout will chnage as your tires wear down, so you will have to adjust your gearing to have a costant rollout.
For more information regarding 1/10th pancars, see here:
http://www.rctech.net/forum/showthre...84#post1260984
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Old 12-16-2004, 11:01 PM   #38
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Does anyone know of any company/person that makes aluminum parts such as front A arms, carrier blocks, or steering knuckles for the Delphi?
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Old 12-29-2004, 10:49 PM   #39
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Does anyone know how much of a difference a hopped-up lighter axle will make with the Delphi? Which one should I get?
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Old 12-30-2004, 11:38 PM   #40
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I think the AE axle works pretty well.
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Old 12-31-2004, 12:01 AM   #41
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i had a delphi, i loved it. if any car can teach you throttle control its this car on croncrete with stock tires. i need to get one again. anyone selling?
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Old 12-31-2004, 06:21 PM   #42
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How much you looking to spend? My LHS has them as an RTR for $79.99. LMK...
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Old 01-08-2005, 07:55 AM   #43
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Quote:
Originally posted by Red Z
Does anyone know of any company/person that makes aluminum parts such as front A arms, carrier blocks, or steering knuckles for the Delphi?
I think you are having the same problem as me, so far I have broken two lower suspension blocks, a steering knuckle and bent two kingpins,

its a shame, as the car is a real blast to drive, it actually handles very well on concrete using Tamiya B's all round and acceleration is excellent with the Monster 27t,
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Old 01-09-2005, 05:39 PM   #44
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Ya got that right. Same problem. Too bad nobody makes those parts. At our track we race them on the oval and they fly. When you have a rookie driver get out there and can't go straight on the straights it's hard to keep the front end intact.
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Old 01-09-2005, 07:12 PM   #45
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I have given it some thought over the weekend about some solutions,

it is only the bottom arm that breaks, we could make a one piece arm out of 3mm thick Alu or CF, then space it up to make ride height with a thick spacer washer on the bottom, and another spacer on top,

I believe the actual weight of the alu/CF would be beneficial in keeping the front end on the ground as well,

the steering knuckles could be replaced with the white nylon F103 steering knuckles, they are almost a exact fit with the Duratrax one's
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