Welcome to the North American Subaru Impreza Owners Club Saturday August 23, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Transmission (AT/MT) & Driveline

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 12-01-2011, 10:45 PM   #251
FuJi K
Scooby Guru
 
Member#: 3687
Join Date: Jan 2001
Chapter/Region: MWSOC
Location: St. Paul, MN
Vehicle:
MY99 GF4 JDM 6spd
NF Performance

Default

^^^^ Yes on the rear diff.
* Registered users of the site do not see these ads.
FuJi K is offline   Reply With Quote
Old 12-03-2011, 08:40 PM   #252
svynx
Scooby Newbie
 
Member#: 210371
Join Date: May 2009
Chapter/Region: MAIC
Location: York, pa
Vehicle:
2002 wrx wrb
converting money into fun

Default

Man. I keep finding set backs. The LGT doesn't have a speed gear. I'll have to have Andrewtech make a custom one. I'll have to take the gearset, transfer gears, front ring and pinion gears out of the LGT.
Depending on what tooth numbers the RS has, I will either have to take the center diff out as well since it is 1:1 instead of my 1.1:1, or I will be ok to go with my stock center diff. A little more research will have to be done.
svynx is offline   Reply With Quote
Old 12-08-2011, 07:57 AM   #253
scoobdude
Scooby Specialist
 
Member#: 50699
Join Date: Dec 2003
Chapter/Region: TXIC
Location: austin
Vehicle:
2004 WRX
Platinum Silver

Default

Anyone know anything about this for recalibrating the speedo?
http://www.dakotadigital.com/index.c...rod/prd126.htm
scoobdude is offline   Reply With Quote
Old 12-08-2011, 09:38 AM   #254
trick_subie
Scooby Newbie
 
Member#: 175001
Join Date: Mar 2008
Chapter/Region: SWIC
Location: Mesa, AZ
Vehicle:
2006 WRX TR
WRB

Default

Quote:
Originally Posted by scoobdude View Post
Anyone know anything about this for recalibrating the speedo?
http://www.dakotadigital.com/index.c...rod/prd126.htm
I've used that system on some old street rods I've worked on, and I personally am not a fan. Iirc flatirons tuning in boulder, co sells a "speedo healer". They mentioned it to me when I got my lgt gears as my speedo is now off by a good bit. I haven't looked into it yet but it may be worth giving them a call. Good group of guys up there.
trick_subie is offline   Reply With Quote
Old 12-08-2011, 09:51 AM   #255
scoobdude
Scooby Specialist
 
Member#: 50699
Join Date: Dec 2003
Chapter/Region: TXIC
Location: austin
Vehicle:
2004 WRX
Platinum Silver

Default

Quote:
Originally Posted by trick_subie

I've used that system on some old street rods I've worked on, and I personally am not a fan. Iirc flatirons tuning in boulder, co sells a "speedo healer". They mentioned it to me when I got my lgt gears as my speedo is now off by a good bit. I haven't looked into it yet but it may be worth giving them a call. Good group of guys up there.
Thanks. Those are the same guys i got my lgt and front diff from. Great guys indeed.
scoobdude is offline   Reply With Quote
Old 12-08-2011, 05:56 PM   #256
limeylight
Scooby Newbie
 
Member#: 5428
Join Date: Apr 2001
Chapter/Region: MWSOC
Location: SE Michigan
Vehicle:
97 Legacy Outback
Black

Default

Quote:
Originally Posted by scoobdude View Post
Anyone know anything about this for recalibrating the speedo?
http://www.dakotadigital.com/index.c...rod/prd126.htm
Have the tach version in my EG33 swap. Seems to work
limeylight is offline   Reply With Quote
Old 01-03-2012, 09:41 AM   #257
svynx
Scooby Newbie
 
Member#: 210371
Join Date: May 2009
Chapter/Region: MAIC
Location: York, pa
Vehicle:
2002 wrx wrb
converting money into fun

Default

Quote:
Originally Posted by scoobdude View Post
Alright guys, finally getting back into doing stuff to my car. I currently have LGT 1-2 with a 4.444 FD. Set up works great. Basically 1st gear is the same between the wrx gears and a 3.9 and LGT 1-2 and 4.444s. The other 4 all have much lower top speeds. However the shifting is much more linear between gears.

Here is my dilemma though. I have tried both the wrx and the FXT speedo gear and both are off. wrx is off by about 13% and the FXT is off by about 7%. The FXT speedo is still off becuase the FXT runs 215/60/16 which has a diameter of 26.1 inches. The 235/40/17 I am running has a diameter of 24.4 inches. So does anyone have any recommendations on what speedo gear out to get. I have no problems pulling down the transmission again, just want this right as it makes tuning a nightmare.

And recalibration is not an option as this time because the speedo and the ecu both work off different wires from the sensor from waht information I have gathered. And i have not found the variable to adjust the speedo in any of the tuning software I have tried.

I talked to the guys at Andrewtech about doing my LGT gear swap, including the 4.11 FD. I also asked about a speedo gear, since my stock on wouldn't read correctly. They said that they would custom make one for $85. Should work for you as well.
svynx is offline   Reply With Quote
Old 05-12-2012, 06:49 PM   #258
DDScooby
Scooby Newbie
 
Member#: 161876
Join Date: Oct 2007
Chapter/Region: NESIC
Location: Bristol, CT
Vehicle:
02 Impreza WRX
WRB

Default

I found this and might be helpful for those doing a ADM, EDM, JDM swap and are curious about cross referencing a part number (i.e. TYXXXXXX) to gear ratios, DCCD vs. Viscous, open/helical...etc....

Might be helpful. I did + your break down in Post #1 for choosing what I needed in my swap.


http://www.gearhack.com/myink/ViewPa...ission%20Chart
DDScooby is offline   Reply With Quote
Old 06-03-2012, 08:28 PM   #259
Ninja007
Scooby Newbie
 
Member#: 150637
Join Date: Jun 2007
Chapter/Region: NWIC
Location: Lynnhood, WA
Vehicle:
02 WRX Wagon
96 Impreza, 06 STI

Default

I've been trying to come up with what gearset/transmission I want to use for Autocross and i've found this thread very helpful. FujiK, I ended up using the gear ratio's you posted on the first page to create a spreadsheet that allows me to quickly figure out speed vs. RPM for any subaru transmission and tire size combination. I have a 96' 1.8L Impreza Brighton which isn't listed in the OP, from the link above its the same as MY95 and MY97 1.8L's. I also have an 02 WRX Wagon with an RA gearset and PFGreen. I've been curious what my actual speed is, because between the gearset and enormous tires my speedo is way off. Anyway I took it a step further and made a couple charts that might be useful for people looking to upgrade their WRX Transmission.








Last edited by Ninja007; 06-03-2012 at 08:38 PM.
Ninja007 is offline   Reply With Quote
Old 06-03-2012, 09:19 PM   #260
DDScooby
Scooby Newbie
 
Member#: 161876
Join Date: Oct 2007
Chapter/Region: NESIC
Location: Bristol, CT
Vehicle:
02 Impreza WRX
WRB

Default

good gouge my friend. I just swapped a JDM V8 6spd in only difference are the 5th and 6th gears are closer together and a bit taller. I would include the JDM ratios as well on a separate spreadsheet a lot of guys go that route as well. Food for thought. Otherwise, awesome stuff man!
DDScooby is offline   Reply With Quote
Old 06-03-2012, 09:32 PM   #261
Ninja007
Scooby Newbie
 
Member#: 150637
Join Date: Jun 2007
Chapter/Region: NWIC
Location: Lynnhood, WA
Vehicle:
02 WRX Wagon
96 Impreza, 06 STI

Default

Thanks, I can make a charts comparing all the 6 speeds if there is demand. I ended up doing this because i'm a visual learner, and for me a picture is worth 10,000 words
Ninja007 is offline   Reply With Quote
Old 06-03-2012, 11:26 PM   #262
DDScooby
Scooby Newbie
 
Member#: 161876
Join Date: Oct 2007
Chapter/Region: NESIC
Location: Bristol, CT
Vehicle:
02 Impreza WRX
WRB

Default

Quote:
Originally Posted by Ninja007 View Post
Thanks, I can make a charts comparing all the 6 speeds if there is demand. I ended up doing this because i'm a visual learner, and for me a picture is worth 10,000 words
amen +1
DDScooby is offline   Reply With Quote
Old 06-03-2012, 11:48 PM   #263
blakkboxer
Scooby Guru
 
Member#: 167244
Join Date: Dec 2007
Chapter/Region: TXIC
Location: DFW, Tx
Vehicle:
2k3 WRX MBP
black & gold is pimpin'

Default

dude ninja007. that's an awesome freakin' chart!!! job well done
blakkboxer is offline   Reply With Quote
Old 06-04-2012, 03:01 PM   #264
J-horn92
Scooby Newbie
 
Member#: 314815
Join Date: Mar 2012
Location: Florida
Vehicle:
2007 Wrx
White

Default

+1 for the awesomeness ninja
J-horn92 is offline   Reply With Quote
Old 06-04-2012, 05:38 PM   #265
FuJi K
Scooby Guru
 
Member#: 3687
Join Date: Jan 2001
Chapter/Region: MWSOC
Location: St. Paul, MN
Vehicle:
MY99 GF4 JDM 6spd
NF Performance

Default

i like the bar graphs!
FuJi K is offline   Reply With Quote
Old 06-04-2012, 06:11 PM   #266
dangerousatom
Scooby Specialist
 
Member#: 70710
Join Date: Sep 2004
Chapter/Region: Tri-State
Location: Quakertown/AREA1320 391whp
Vehicle:
2002 04STi Swaped RS
w/PPGS & 02 Wagon w/PPGs

Default

I must agree.....that is some sweet graphing!

The JDM Ratios would be very beneficial
Also if there is a easy calculation to convert the numbers that you could post for the other ratios like 411/370. Im a 411 man myself more grunt out of the hole but some top end compared to the 444
dangerousatom is offline   Reply With Quote
Old 06-05-2012, 04:22 AM   #267
subaru505
Scooby Newbie
 
Member#: 321645
Join Date: May 2012
Location: the Duke City
Vehicle:
03 03 rsti
black

Default

i am new to subarus i have an 03 wrx and i would like to make close to 400hp one day(pipe dream) i would like to know one of the more inexpensive options like gearing it currently this car is my daily driver and it will be i would like to be able to do autocross and a few week end races i here that my cars tranny is very bad and do not want it to blow up on me as it is a daily driver what are my best bets and how do i go about it thank you very any help please feel free to pm about anything THANK YOU
subaru505 is offline   Reply With Quote
Old 06-05-2012, 07:40 AM   #268
raggedoutsti
Scooby Specialist
 
Member#: 255714
Join Date: Aug 2010
Location: katy tx
Vehicle:
2005 STi
psm

Default

Quote:
Originally Posted by Ninja007
I've been trying to come up with what gearset/transmission I want to use for Autocross and i've found this thread very helpful. FujiK, I ended up using the gear ratio's you posted on the first page to create a spreadsheet that allows me to quickly figure out speed vs. RPM for any subaru transmission and tire size combination. I have a 96' 1.8L Impreza Brighton which isn't listed in the OP, from the link above its the same as MY95 and MY97 1.8L's. I also have an 02 WRX Wagon with an RA gearset and PFGreen. I've been curious what my actual speed is, because between the gearset and enormous tires my speedo is way off. Anyway I took it a step further and made a couple charts that might be useful for people looking to upgrade their WRX Transmission.




Great work! Is there any way you can make the gear top speed graph with the redline at 8k and 9k rpm. no pressure but for some of us that would be some great info.
raggedoutsti is offline   Reply With Quote
Old 06-05-2012, 08:17 AM   #269
DDScooby
Scooby Newbie
 
Member#: 161876
Join Date: Oct 2007
Chapter/Region: NESIC
Location: Bristol, CT
Vehicle:
02 Impreza WRX
WRB

Default

Quote:
Originally Posted by subaru505 View Post
i am new to subarus i have an 03 wrx and i would like to make close to 400hp one day(pipe dream) i would like to know one of the more inexpensive options like gearing it currently this car is my daily driver and it will be i would like to be able to do autocross and a few week end races i here that my cars tranny is very bad and do not want it to blow up on me as it is a daily driver what are my best bets and how do i go about it thank you very any help please feel free to pm about anything THANK YOU
Anything over ~260whp and the stock 5MT box is going to shred itself; mainly 2nd-3rd gears seeing as those are the two gears that see the most use. If your box is already in bad shape and you are set on having a car with that many horsies in it, go with a USDM or JDM 6sp conversion. Scour the Conversion and Drivetrain threads for info on the the needed items. But your best bet is going that route.

Stay away from the JDM Sti 5spd's and other gear swaps into your bugeye. I'm only saying this because recently I wanted to go that route and a friend of mine that drives ST-2 class NASA has replaced, and I ***** you not around 50-60 of those types of gearboxes in his EG33 swapped car and his daily driver 02 WRX (which now has a JDM Ver. 8 swap). To quote him *ahem* "I see so many newcomers want to do the F***ing economic thing and do a 5spd or the track drivers with the crappy PPG's and I'm the one who ends up pulling these time bombs apart!! It's not a matter of IF the car is going to shred its own gearbox, its when!"

I dunno, but experience in the performance world of cars (my previous one was a blown Mustang GT) has taught me to default to those with the experience. Real world knowledge and such. IF you want safe and reliable gears, just do yourself a favor. Swap a Ver. 8 or 9 6spd in w/some Extra-S tranny fluid and you'll be safe and happy forever...well almost.

hope it helps dude, good luck.
DDScooby is offline   Reply With Quote
Old 06-05-2012, 02:50 PM   #270
subaru505
Scooby Newbie
 
Member#: 321645
Join Date: May 2012
Location: the Duke City
Vehicle:
03 03 rsti
black

Default

Quote:
Originally Posted by DDScooby View Post
Anything over ~260whp and the stock 5MT box is going to shred itself; mainly 2nd-3rd gears seeing as those are the two gears that see the most use. If your box is already in bad shape and you are set on having a car with that many horsies in it, go with a USDM or JDM 6sp conversion. Scour the Conversion and Drivetrain threads for info on the the needed items. But your best bet is going that route.

Stay away from the JDM Sti 5spd's and other gear swaps into your bugeye. I'm only saying this because recently I wanted to go that route and a friend of mine that drives ST-2 class NASA has replaced, and I ***** you not around 50-60 of those types of gearboxes in his EG33 swapped car and his daily driver 02 WRX (which now has a JDM Ver. 8 swap). To quote him *ahem* "I see so many newcomers want to do the F***ing economic thing and do a 5spd or the track drivers with the crappy PPG's and I'm the one who ends up pulling these time bombs apart!! It's not a matter of IF the car is going to shred its own gearbox, its when!"

I dunno, but experience in the performance world of cars (my previous one was a blown Mustang GT) has taught me to default to those with the experience. Real world knowledge and such. IF you want safe and reliable gears, just do yourself a favor. Swap a Ver. 8 or 9 6spd in w/some Extra-S tranny fluid and you'll be safe and happy forever...well almost.

hope it helps dude, good luck.
ok but i see all these things like axles and other stuff are these things necessary for the swap i just want the six speed
subaru505 is offline   Reply With Quote
Old 06-05-2012, 03:14 PM   #271
dangerousatom
Scooby Specialist
 
Member#: 70710
Join Date: Sep 2004
Chapter/Region: Tri-State
Location: Quakertown/AREA1320 391whp
Vehicle:
2002 04STi Swaped RS
w/PPGS & 02 Wagon w/PPGs

Default

260 is a bit off

It really is in how you drive /shift it. I have a 301 whp 297wtq 03 Wagon with stock trans at 157k no issues yet.....but I dont slam the gears or launch it from a dead stop, and always try and double clutch from high speed to a stop.

Id say 300-325 is the top of the top end HP the trans will take, but I know guys who have blown a stock trans at stock HP

subaru505 all your question are answered in the Trans Facts and minor searching in the trans threads
dangerousatom is offline   Reply With Quote
Old 06-18-2012, 11:12 AM   #272
FuJi K
Scooby Guru
 
Member#: 3687
Join Date: Jan 2001
Chapter/Region: MWSOC
Location: St. Paul, MN
Vehicle:
MY99 GF4 JDM 6spd
NF Performance

Default

i tell you what guys,
'07-'09 Spec B ratios FTW!!!

....especially when revving to 8500-9000rpms!
FuJi K is offline   Reply With Quote
Old 06-25-2012, 12:13 AM   #273
FuJi K
Scooby Guru
 
Member#: 3687
Join Date: Jan 2001
Chapter/Region: MWSOC
Location: St. Paul, MN
Vehicle:
MY99 GF4 JDM 6spd
NF Performance

Default

here's a video if you don't believe me!

FuJi K is offline   Reply With Quote
Old 06-25-2012, 01:28 AM   #274
dangerousatom
Scooby Specialist
 
Member#: 70710
Join Date: Sep 2004
Chapter/Region: Tri-State
Location: Quakertown/AREA1320 391whp
Vehicle:
2002 04STi Swaped RS
w/PPGS & 02 Wagon w/PPGs

Default

That Sir is Flipping quick!
dangerousatom is offline   Reply With Quote
Old 01-04-2013, 11:32 AM   #275
xluben
Scooby Guru
 
Member#: 261612
Join Date: Oct 2010
Location: Minneapolis, MN
Vehicle:
2012 Forester 2.5X
2002 WRX Sedan

Default

Quote:
Originally Posted by Ninja007 View Post
Thanks, I can make a charts comparing all the 6 speeds if there is demand. I ended up doing this because i'm a visual learner, and for me a picture is worth 10,000 words
I agree that the graphs are much easier to interpret (for me)! I did something similar comparing the different OEM gearsets out there. I only compared 2 sets per graph because it got a little too busy with more than that. Here's what I came up with.

First 3 are comparing the OEM 08+ WRX 5 Speed to the different USDM 6 Speeds:







Next 3 are comparing the different USDM 6 Speed ratios to each other:







To me the spacing on the 5 Speed and the Spec B 6 Speed look the best (the most even). The 04-06 STI 6MT has too large of a gap between 4-5, and the 07+ STI 6MT has too small of a gap between 4-5. Either of those two can still work well depending on your application, but for overall use the Spec B spacing looks preferable (to me).

And I also compared the 08+ WRX 5 Speed and the Spec B 6 Speed to the Mazdaspeed3 6 Speed:



*I used the tire size of 235/45R17 (OEM 2011 WRX) and included a speed correction factor of 0.965. I have found this to be a little more accurate. I also used a redline of 7000RPM's. The top speed in each gear goes up significantly if you increase the rev limiter to 8k (or even higher).
xluben is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
This why you learn to do your own vehicle maintenance. BacDoc Off-Topic 156 02-22-2008 09:58 PM
Sources for learning to Tune your Car? plus plus plus Newbies & FAQs 7 06-19-2007 03:56 AM
How to choose your own spring rates (and get the spring frequencies correct) stretchsje Brakes, Steering & Suspension 2 05-16-2007 01:55 PM
Learn To Open Your Doors Dooley Mid Atlantic Impreza Club -- MAIC 25 10-04-2006 04:15 PM
For crying out loud people, learn to title your threads well! Brady Off-Topic 12 05-15-2005 08:57 PM


All times are GMT -4. The time now is 02:59 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.