TwinTurbo.NET: Nissan 300ZX forum - That's where torque mulitplications comes in a
Subject
That's where torque mulitplications comes in a
Posted by
AzHeat
on August 10, 2004 at 12:35 PM
This message has been viewed
36
times.
In Reply To
Oh geez you are so wrong!
posted by Technomancer
on August 10, 2004 at 12:26 PM
Message
a transmission. That would be reflected in the torque in the equations. Where do you input gear ratio in the formulas for HP and Power? You don't. The lower the gear the more torque you have. But the higher torque has less output rpms .
Follow Ups
dyno pull-3rd or 4th gear
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eriksu9
10:35:38 08/10/04
Proper gear is 4th
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ImTheDevil
10:37:43 08/10/04
What are you asking?
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Technomancer
10:43:43 08/10/04
4th gear is 1:1
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eroc77
10:49:16 08/10/04
I don't see why
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Technomancer
10:55:08 08/10/04
It's not that 4th is more efficient
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Rob'Z
11:07:32 08/10/04
Im claiming that it will give the most accurate....
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eroc77
11:11:06 08/10/04
1:1 has the least amt of friction being transferred through
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Chris(NJ)
11:11:45 08/10/04
Sorry, I'm not trying to be dense here but I still don't see
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Technomancer
11:28:29 08/10/04
Relax and stop overthinking it.
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SeedyROM
12:57:17 08/10/04
This is the theory
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Chip(GMS Racing)
13:07:15 08/10/04
"directly connected" just isn't true
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Technomancer
13:19:10 08/10/04
I was regurgitating what I read somewhere
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Chip(GMS Racing)
13:23:24 08/10/04
I don't think the dyno needs to know the gearing info.
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Marshall
13:22:31 08/10/04
yes, I'm claiming that the number is needed as an input to t
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Technomancer
13:30:53 08/10/04
4th gear is 1:1 so it will give "correct" numbers
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Rob'Z
10:48:45 08/10/04
Did you forget the existence of the rear differential?
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Technomancer
10:54:24 08/10/04
? (n/m)
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Chris(NJ)
11:04:44 08/10/04
Huh? So you're saying I should divide the RWHP numbers
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Rob'Z
11:11:22 08/10/04
Yes, I'm saying that is what the dyno does
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Technomancer
11:25:40 08/10/04
i believe 5th is only closer in a 6spd. (n/m)
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Chris(NJ)
11:32:07 08/10/04
correct-5th is usually 1:1 in a 6sd
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Rob'Z
11:44:33 08/10/04
Ugh you guys! Multiply by the rear diff
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Technomancer
11:51:27 08/10/04
Free your mind
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Rob'Z
16:10:40 08/10/04
You get no torque multiplication from the tire. (n/m)
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Technomancer
16:30:44 08/10/04
Yeah I was being a little sarcastic there
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Rob'Z
11:41:21 08/10/04
a lot of shops do not know how to dyno autos. kinda sad
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Chris(NJ)
11:04:08 08/10/04
didn't the dyno shop you took us to ask us if our cars
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ZEngineer (TT)
13:02:02 08/10/04
Use the dyno as a tuning tool, not a contest
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vorpalZ
12:07:14 08/10/04
I have gotten better numbers in 4th than 3rd on the
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AzHeat
12:17:37 08/10/04
Oh geez you are so wrong!
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Technomancer
12:26:17 08/10/04
He is correct about turbos spooling quicker in higher gears
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Chip(GMS Racing)
12:32:25 08/10/04
Yes I have nothing to say about the spooling
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Technomancer
12:51:54 08/10/04
A real world example
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Chip(GMS Racing)
13:21:02 08/10/04
An interesting tidbit:
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Marshall
13:31:56 08/10/04
I agree, I FIRMLY believe that my car would have been faster
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Chip(GMS Racing)
13:55:02 08/10/04
That's where torque mulitplications comes in a -
AzHeat
12:35:30 08/10/04
you are confusing engine RPM and drum RPM
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Technomancer
12:47:25 08/10/04
Show me where in the HP equations and the
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AzHeat
13:18:04 08/10/04
OK, let me soften my stance:
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Technomancer
14:02:03 08/10/04
Please give the mathematics equation for this
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AzHeat
14:33:21 08/10/04
for what part? (n/m)
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Technomancer
14:41:52 08/10/04
The gear ratio is already accounted for in the
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AzHeat
15:25:42 08/10/04
yep
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Technomancer
16:24:14 08/10/04
Re: dyno pull-3rd or 4th gear
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eriksu9
13:42:12 08/10/04
good luck. This has been very interesting! (n/m)
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Technomancer
14:03:02 08/10/04
Dyno at 1:1(or gearing closest to 1:1) to compare >>
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I am Z-ing Double
15:23:59 08/10/04
I'm surprised you tech-heads haven't mentioned dyno
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vorpalZ
15:59:47 08/10/04
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