# Strait Cut Gears SR20DET -

**URL:** <https://forums.speedlife.net/t/strait-cut-gears-sr20det/129522>\
**Category:** SON240sx Automotive\
**Created:** [November 11, 2009, 11:07pm UTC](https://forums.speedlife.net/t/strait-cut-gears-sr20det/129522 "2009-11-11T23:07:16Z")\
**Posts on this page:** 11\
**Page:** 2

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**Author:** ![Chad\_Dugan](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/chad_dugan/32/5576_2.png) [@Chad\_Dugan](https://forums.speedlife.net/u/Chad_Dugan)\
**Post date:** [November 12, 2009, 4:04pm UTC](https://forums.speedlife.net/t/strait-cut-gears-sr20det/129522/21 "2009-11-12T16:04:10Z")

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> [@e-bay of the day: Britney hair](https://forums.speedlife.net/t/e-bay-of-the-day-britney-hair/24785/5):
>
> chris blew 3 trannies, 1 being sr and it had a grind in third, 2nd was a ka tranny on sr bellhousing same thing grind, then third ka tranny he blew that to shit because ka trannies suck,
> 
> now he has a mint sr tranny
> 
> i have had the same tranny in my car since i got it, and beat the shit out of it, mine grinds in 4th, but who cares its a track car

lol pete gear sets are sick, 1st to 3rd is all i will need for drifting for what i want to do, once im in gear tranny should hold up to the power

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**Author:** ![chopsticksx](https://avatars.discourse-cdn.com/v4/letter/c/6a8cbe/32.png) [@chopsticksx](https://forums.speedlife.net/u/chopsticksx)\
**Post date:** [November 12, 2009, 8:55pm UTC](https://forums.speedlife.net/t/strait-cut-gears-sr20det/129522/22 "2009-11-12T20:55:38Z")

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> [@FS: 93 ford ranger](https://forums.speedlife.net/t/fs-93-ford-ranger/24781/6):
>
> Straight cut gears are stronger than helical ones, but their engagement is very rough in comparison. The helical gears are at an angle, so that they engage smoother, but this makes them more prone to breakage, etc. I believe that 99% of all street cars have helical gears, not sure if it does, but I think the Porsche GT3 might have straight cut.

Helical gears are also used over straight because the are less noisy when engaged. All reverse gears in manual transmissions are straight, that is why you hear that distinctive sound when you reverse.

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**Author:** ![Keez](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/keez/32/5570_2.png) [@Keez](https://forums.speedlife.net/u/Keez)\
**Post date:** [November 12, 2009, 8:59pm UTC](https://forums.speedlife.net/t/strait-cut-gears-sr20det/129522/23 "2009-11-12T20:59:50Z")

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with that power 4th gear is a drift gear

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**Author:** ![240xcsv](https://avatars.discourse-cdn.com/v4/letter/2/bbe5ce/32.png) [@240xcsv](https://forums.speedlife.net/u/240xcsv)\
**Post date:** [November 14, 2009, 5:27am UTC](https://forums.speedlife.net/t/strait-cut-gears-sr20det/129522/24 "2009-11-14T05:27:29Z")

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do it, sick as fuck

Enjoy daaaa paaaain

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**Author:** ![240sx](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/240sx/32/5592_2.png) [@240sx](https://forums.speedlife.net/u/240sx)\
**Post date:** [November 14, 2009, 12:37pm UTC](https://forums.speedlife.net/t/strait-cut-gears-sr20det/129522/25 "2009-11-14T12:37:18Z")

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grinding gears could jsut be syncro’s. very interesting read. and to link^^ omg sick!

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**Author:** ![jzavalinsk](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jzavalinsk/32/5713_2.png) [@jzavalinsk](https://forums.speedlife.net/u/jzavalinsk)\
**Post date:** [November 14, 2009, 1:13pm UTC](https://forums.speedlife.net/t/strait-cut-gears-sr20det/129522/26 "2009-11-14T13:13:12Z")

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ive seen that video before, insane hes passin on the outside like its nothin

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**Author:** ![jugahdor](https://avatars.discourse-cdn.com/v4/letter/j/67e7ee/32.png) [@jugahdor](https://forums.speedlife.net/u/jugahdor)\
**Post date:** [November 14, 2009, 3:47pm UTC](https://forums.speedlife.net/t/strait-cut-gears-sr20det/129522/27 "2009-11-14T15:47:49Z")

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That was sick but i would need to get hearing aides after driving that shits soo high pitch

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**Author:** ![jeff93eg](https://avatars.discourse-cdn.com/v4/letter/j/58956e/32.png) [@jeff93eg](https://forums.speedlife.net/u/jeff93eg)\
**Post date:** [November 14, 2009, 3:54pm UTC](https://forums.speedlife.net/t/strait-cut-gears-sr20det/129522/28 "2009-11-14T15:54:43Z")

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helical gears are cut on an angle to give more surface area so they can stand up to more torque. More surface area = less chance of breaking… plus its alot more quiet

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**Author:** ![Singh](https://avatars.discourse-cdn.com/v4/letter/s/43a26b/32.png) [@Singh](https://forums.speedlife.net/u/Singh)\
**Post date:** [November 15, 2009, 7:59pm UTC](https://forums.speedlife.net/t/strait-cut-gears-sr20det/129522/29 "2009-11-15T19:59:57Z")

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1st gear straight cut for drifting is an absolute waste. You need 2nd through 4th.

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**Author:** ![Lucidsnow](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/lucidsnow/32/5538_2.png) [@Lucidsnow](https://forums.speedlife.net/u/Lucidsnow)\
**Post date:** [November 16, 2009, 5:35am UTC](https://forums.speedlife.net/t/strait-cut-gears-sr20det/129522/30 "2009-11-16T05:35:32Z")

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chad ur car still not ready? o\_\_O

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**Author:** ![sonfc](https://avatars.discourse-cdn.com/v4/letter/s/a88e57/32.png) [@sonfc](https://forums.speedlife.net/u/sonfc)\
**Post date:** [November 17, 2009, 12:58am UTC](https://forums.speedlife.net/t/strait-cut-gears-sr20det/129522/31 "2009-11-17T00:58:34Z")

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> [@FS: 93 ford ranger](https://forums.speedlife.net/t/fs-93-ford-ranger/24781/6):
>
> Straight cut gears are stronger than helical ones, but their engagement is very rough in comparison. The helical gears are at an angle, so that they engage smoother, but this makes them more prone to breakage, etc. I believe that 99% of all street cars have helical gears, not sure if it does, but I think the Porsche GT3 might have straight cut.

the type of gear has nothing to do with engagement, Helical gears are in street cars because they are quieter no other reason, that wierd whirrrrr noise going in reverse is because the reverse gear is always a straight cut gear

Helical gears = Quieter= More load on the bearings in the tranny on high horsepower apps

Straight cut gears = louder = considerably less load on bearings in tranny

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