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Old 05-18-2008, 06:20 PM   #1
spoolinsti05
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Member#: 108051
Join Date: Feb 2006
Chapter/Region: Tri-State
Location: NY
Vehicle:
2005 TickingTimeBomb
Jr tuned TT Sleeved

Default High Speed 2nd-6th Ratio Conversion

Anyone done this mod yet? I'm really thinking about doing this and the Billet selector fork kit. Also maybe Cyro treating the gears and stuff. Any input?

heres where to get the gears from http://rallispec.com/prod_trans.htm

RST-F145kit High Speed 2nd-6th Ratio Conversion $816
1st: 3.636
2nd: 2.235
3rd: 1.521
4th: 1.137
5th: 0.891
6th: 0.707

2004-2006 manual transmission gear ratios:
1st - 3.636
2nd - 2.375
3rd - 1.761
4th - 1.346
5th - 0.971
6th - 0.756
reverse - 3.545
final drive ratio - 3.90

2007+ manual transmission gear ratios:
1st: 3.636
2nd: 2.375
3rd: 1.521
4th:1.137
5th:0.971
6th: 0.756
reverse - 3.545
final drive ratio - 3.90
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Old 05-18-2008, 11:15 PM   #2
spoolinsti05
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Jr tuned TT Sleeved

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I take it nobody has done this yet.
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Old 05-19-2008, 02:09 AM   #3
spoolinsti05
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Jr tuned TT Sleeved

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bump?
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Old 05-19-2008, 03:14 AM   #4
verdee
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WRB

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I wonder what kind of bump in gas mileage you would get with these.
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Old 05-19-2008, 03:18 AM   #5
Dyno Flash
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03 Evo 8 9.5 @ 149

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We have done it and they do a great job. Its a lovely improvement.
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Old 05-19-2008, 01:42 PM   #6
spoolinsti05
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Quote:
Originally Posted by verdee View Post
I wonder what kind of bump in gas mileage you would get with these.
I'm sure it improves it at least a few miles per gallon
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Old 05-19-2008, 01:43 PM   #7
spoolinsti05
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Quote:
Originally Posted by Dyno Flash View Post
We have done it and they do a great job. Its a lovely improvement.
still didn't hit ten's yet with that built motor and stuff? I'm going for those times on the stock engine 31psi on C16 bonzii Thank god for a Junior Tune!

Do you have these gears in your sti? If so what do you cross the line in? 4th?
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Old 05-23-2008, 02:08 AM   #8
spoolinsti05
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Jr tuned TT Sleeved

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a little bumpage up in hur!
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Old 05-31-2008, 08:23 PM   #9
Junior2JZ
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Bill I cross the line @ 127ish with the same ratios.. 7800rpms..
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Old 06-01-2008, 05:41 AM   #10
spoolinsti05
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Jr tuned TT Sleeved

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Quote:
Originally Posted by Junior2JZ View Post
Bill I cross the line @ 127ish with the same ratios.. 7800rpms..
so do the high speed gear's Or PPG 1-4th? Orr JDM 5th-6th like scuba steve got.
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Old 06-01-2008, 01:47 PM   #11
spoolinsti05
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Bump it up..
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Old 09-29-2008, 04:45 PM   #12
Frank A
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11 dgm wrx hatch
08 black TA STI

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bumping this thread b/c I just bought the taller 5th and 6th for my '08 sti and now that I have them in hand, I'm hoping they'll work... trying to figure out what changed to the syncros and 6th drive gear per the sponaugle thread before I tear it apart.

Frank
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Old 09-29-2008, 05:23 PM   #13
DS1
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If anyone is looking for this set call Adam @ Z1 he has it for less.
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Old 09-29-2008, 10:14 PM   #14
Frank A
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you don't know what I paid
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Old 10-13-2008, 01:28 AM   #15
darrenbt
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STOCK (6TH)
Tire Width in (mm): 245
Aspect Ratio: 40
Rim Diameter in (inch): 18
Transmission Gear Ratio: 0.756
Differential Ratio (final drive): 3.9
4500 - 116.77
4000 - 103.79
3500 - 90.82
3000 - 77.85
2500 - 64.87

NEW GEAR
Tire Width in (mm): 245
Aspect Ratio: 40
Rim Diameter in (inch): 18
Transmission Gear Ratio: 0.707
Differential Ratio (final drive): 3.9
4500 - 124.86
4000 - 110.99
3500 - 97.11
3000 - 83.24
2500 - 69.37

It should make some difference, but I don't think it would be that much...
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