Subaru Tech All We'll Drive

straight cut or helical?

Old Jun 29, 2007 | 08:01 AM
  #31 (permalink)  
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Originally Posted by FlybyTT
^^^^^^^ i totaly agree i hate HATE my 6spd 80mph=3750rpm= no gas milage kill me for my spelling later
isnt the final drive different on the jdm then the usdm???
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Old Jun 29, 2007 | 04:09 PM
  #32 (permalink)  
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Originally Posted by whiteghost06
is ther a diff betwen the 06 and 07 sti tranys???
2-4 gears are longer. 4th tops out at 117mph so its much better geared for drag racing. The final drive was not changed in '07.
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Old Jun 29, 2007 | 05:28 PM
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yea jdm tranny is even tighter i cant get into 60 in 2nd its insane how close it is straight up rally gears
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Old Jun 29, 2007 | 06:52 PM
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oh the decisions the decisions when i get back... i can either make my car into a reaaaaal nice show car or make it decently fast... talkin tranny/35r/turboxs fmic... my bank account is gonna look nice when i leave here and i'm so undecided what i wanna do...
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Old Jul 3, 2007 | 07:35 PM
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Originally Posted by WTFchuck
andrewtech won't reply back they seem to be retarded... i'm trying to get pricing
Andrew is a great guy but is often flooded with work. He will get back to you...just have patience...
aside from that the real question be syncro or dog
for the street I would honestly do straight 1-2 and helical 3-4 syncro...
though helicals are theoretically stronger, in the real world the straight cuts take more abuse.
For cruising, the 6-speeds are great but you have no time in gear and they are about 85 lbs heavier. So for performance the 5 speed wins all day.

p.s. I'm doing my first built tranny witha PAR gearset. It showed up today so I'm stoked. I'll let you know how it turns out.

Last edited by homemade wrx; Jul 3, 2007 at 07:40 PM.
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Old Jul 3, 2007 | 08:16 PM
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is it possible for me to buy the new syncros an gearset an install it myself... is it really that difficult?
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Old Jul 4, 2007 | 04:48 AM
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well you have to have some specialty tools to set lash on the front differential...other than that just standards gauges to mic and use the right shims...
other than that they are simple.
you can save a good bit on labor if you drop the tranny and crack it open yourself. Also if you reinstall it yourself.
That's what I'm doing at Kent Moore is taking forever for the specialty tools.
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Old Jul 4, 2007 | 12:18 PM
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has anyone had experience replacing gears and syncros?
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Old Jul 4, 2007 | 01:57 PM
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yeah...I have...that's how I know what is needed
have RA gears right now...and my PAR dogbox is waiting to go in...the billet forks and interlock kit were left out of the box.
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Old Jul 4, 2007 | 02:02 PM
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i had the ra spec 1-5 on my 02, it got wrecked and totalled buy the girl who bought it from me rip to my old sube! its a bitch Chuck especially like ^^ he said they forgot something...our trannies are like a glass house wearing nails as shoes..... once its done right though man it feels good...im sure the ppg's are bad ass f@$k!!!!!
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