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Old 06-13-2003, 08:40 AM   #5311
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Default Mccoy Race

Robbie are you going to practice Thursday? I think I will be there around noon.
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Old 06-13-2003, 09:37 AM   #5312
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Quote:
Originally posted by Corse-R
On electric cars there's a myth about same ratios with different pinion/spur combos that some people seems to apply with success.

On large tracks where you need lots of high speed, use the larger pinion/spur combination, this yields more inertia to the transmission and allows you to be slightly faster, but hampers slightly the acceleration (when your engine needs to move more weight, needs to apply more torque (and in this case, is rotating weight).

On smaller tracks the same ratio with smaller pinion/spur combo is more related to acceleration (due to their rotating mass).

In our cars you have to choose and see if permits to mesh correctly to the 1st gear, if all two meshes, much probably I'll choose the larger combo on a larger track, but this is going to finetune the car up to a level that probably you need to pass each lap by the same place, braking ever on the same place and accelerating as needed to see any difference (and probably is something like 0.01 or 0.02 secs).

I told the theory behind the same rations on different pinion/spur combos, you need to try for yourself and see if worths to you.
Thanks Corse-R.
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Old 06-13-2003, 10:36 AM   #5313
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Default Re: Mccoy Race

Quote:
Originally posted by YBSLOW
Robbie are you going to practice Thursday? I think I will be there around noon.
Nah but I will be there on Friday first qual will have to be my practice.
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Old 06-13-2003, 11:38 AM   #5314
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Default

Quote:
Originally posted by Corse-R
On electric cars there's a myth about same ratios with different pinion/spur combos that some people seems to apply with success.

On large tracks where you need lots of high speed, use the larger pinion/spur combination, this yields more inertia to the transmission and allows you to be slightly faster, but hampers slightly the acceleration (when your engine needs to move more weight, needs to apply more torque (and in this case, is rotating weight).

On smaller tracks the same ratio with smaller pinion/spur combo is more related to acceleration (due to their rotating mass).

In our cars you have to choose and see if permits to mesh correctly to the 1st gear, if all two meshes, much probably I'll choose the larger combo on a larger track, but this is going to finetune the car up to a level that probably you need to pass each lap by the same place, braking ever on the same place and accelerating as needed to see any difference (and probably is something like 0.01 or 0.02 secs).

I told the theory behind the same rations on different pinion/spur combos, you need to try for yourself and see if worths to you.
I love this forum! I can almost learn one new thing everyday! thanks bud

Last edited by Ah10; 06-13-2003 at 03:50 PM.
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Old 06-13-2003, 11:57 AM   #5315
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Quote:
Originally posted by eddiethefish
Notice that 42/21 and 44/22 both yields "2".
And also, on the 0.8 second gear:

26/52 and 27/54 do yield "2" as well. Should there be a 56T Spur, 28/56 would have yielded "2", as well. See the pattern? Now, at back on the stand and just run the car!

food for thought.
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Old 06-13-2003, 12:04 PM   #5316
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Quote:
Originally posted by eddiethefish
And also, on the 0.8 second gear:

26/52 and 27/54 do yield "2" as well. Should there be a 56T Spur, 28/56 would have yielded "2", as well. See the pattern? Now, at back on the stand and just run the car!

food for thought.
And yes, Kawahara does have the 56T.

so, here it is: 28/56 yields "2", as well.
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Old 06-13-2003, 12:12 PM   #5317
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Default 0.8 mm

1st Gear
Mugen 20T
Mugen 21T
Mugen 22T

2nd Gear
Mugen 25T
Mugen 26T
Mugen 27T
Mugen 28T
Mugen 29T

1st Spur
Mugen 58T
Mugen 59T
Mugen 60T
Kawahara 61T

2nd Spur
Mugen 52T
Mugen 53T
Mugen 54T
Kawahara 56T
Kawahara 57T

Guess, we will have about 0.1* range of gearing ratio to play around with.

*0.1 is the rounded off number, as I don't wanna go through with too many decimal places, make me headache, ya know? I'm a flunkie; gimme a break.
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Old 06-13-2003, 12:22 PM   #5318
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Default Re: 0.8 mm

Quote:
Originally posted by eddiethefish
Guess, we will have about 0.1* range of gearing ratio to play around with.

*0.1 is the rounded off number, as I don't wanna go through with too many decimal places, make me headache, ya know? I'm a flunkie; gimme a break.
Huh.... love going to the third or fourth decimal....
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Old 06-13-2003, 01:42 PM   #5319
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Default Question

What does it mean by increasing and decreasing preload of the springs?
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Old 06-13-2003, 02:31 PM   #5320
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Quote:
Originally posted by RClover
driving full diff setup requires constant attack as opposed to one-ways?
RUBBISH
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Old 06-13-2003, 02:41 PM   #5321
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i run 100k in the front and kit 15 in the rear
i have all the steering i need and i can dive smooth and quick or aggresivly.
also run on rubber tyres!!
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Old 06-13-2003, 03:49 PM   #5322
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Default Re: Question

Quote:
Originally posted by Varuth
What does it mean by increasing and decreasing preload of the springs?
increase preload meaning turning the spring collar down and compress the spring and go figure out the decreasing preload!
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Old 06-13-2003, 06:20 PM   #5323
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Where did it go?

Does anyone have the problem of lose brake pin on the right rear bulkhead like I did? In this case, I lost mine. Was cleaning my car till I notice there WAS something missing.









I'm glad it wasn't the 24K brake pin I was about to use, right? Manticore? RClover?

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Old 06-13-2003, 06:54 PM   #5324
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looks like the brake pads pushed it either in or out of place.
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Old 06-13-2003, 07:00 PM   #5325
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if you didnt notice the pins were disappeared while driving, leave it as it is now ! you can save some 24K hop up pins !!
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