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Straight cut gears

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Old Nov 23, 2003 | 08:40 PM
  #1  
Dwayne88IROC's Avatar
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From: Lake Forest,CA
Car: Cars
Engine: SB
Transmission: manual
Axle/Gears: 9bolt
Straight cut gears

What's so bad about using straight cut gears in a manual tranny on the street, other then noise?
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Old Nov 23, 2003 | 08:49 PM
  #2  
james_85Z28's Avatar
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From: Seattle, WA
Car: 2003 Porsche C4S
Engine: 3.6L
Transmission: 6-speed Manual
I'm sure after a while the noise won't be so much of a bother
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Old Nov 23, 2003 | 09:02 PM
  #3  
Dwayne88IROC's Avatar
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From: Lake Forest,CA
Car: Cars
Engine: SB
Transmission: manual
Axle/Gears: 9bolt
I'll just turn up the stereo.

I'm really considering getting some straight cut dog ring gears for fast shifting.
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Old Nov 23, 2003 | 10:37 PM
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Pablo's Avatar
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Car: Turbo Buick
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Originally posted by james_85Z28
I'm sure after a while the noise won't be so much of a bother
hah I know this all too well

I too have wondered the same thing dwayne, ive seen straight cut setups without synchros for t5s that supposedly allow clutchless shifting
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Old Nov 24, 2003 | 04:29 PM
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injdinjn's Avatar
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From: I won't tell either
Car: 1986 Grand Prix TPI
Engine: 350 TPI
Transmission: 200 4R
I am not possitive, but I think that with streight cut gears you need to be REALLY good at shifting with or without a clutch.
The REAL old cars had streight cut gears, thats why they almost always grind when shifting.
You need to be able to match the gear speeds and have the cluster gear and new gear (2nd 3rd or ?) spinning at the same speed.
Knowing you guys it won't matter, as within a few hundred miles the gears will be rounded off anyway. Just remember to change the gear oil to remove the loose gear edges now floating around.
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Old Nov 25, 2003 | 03:00 PM
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From: Orange, CA
Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Dwayne, if you're interested:
I have a New Process Chrysler 4 speed trans that is slick shifted and has an adapter to fit a Chevy.

Edit:
Forgot to mention, you won't break it....it's from a HEMI

Last edited by Dyno Don; Nov 25, 2003 at 06:16 PM.
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Old Nov 25, 2003 | 09:28 PM
  #7  
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From: Lake Forest,CA
Car: Cars
Engine: SB
Transmission: manual
Axle/Gears: 9bolt
I talked to some folks who use straight cut gears in their drag cars and the ysaid that you have to slam gears "shift very quickly" or you wear out the dog rings. Ay way your always slammin gears even from stop light to stop light. Not my thing. I saw tremec TKO's on ebay for $1599. I've got the $ now.

Don tell me more about this slick shift.

I've mostly narrowed my choices to the Tremec TKO ($1600 ebay) or the G-force rebuild with true alloy main shaft and bronze forks ($1800) Both claim around the same torque ratings but the g-force is lighter w/bronze forks and super strong main shaft.

Last edited by Dwayne88IROC; Nov 25, 2003 at 09:37 PM.
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