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Old 02-11-2011, 04:24 PM   #401
Totus81
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Default Tranny is fine.

I have 06 wrx-limited 92K cobb stage 2 from time to time I am going to autocross, and no problems with gear box. In my opinion everything depend how you thread your car. You can blow any tranny no problem if you want or don't know how to behave with it.
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Old 02-12-2011, 10:06 PM   #402
dnorton
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Blew third gear today getting onto the expressway. 335/360 for 10k on a new 2011 STI built motor. Bought new tires Monday Extreme Contact tires and all I did was put it in third and stand on it to see if it was going to over boost using the on ramp. It went to 21lbs and at the same time blew third. What I plan on doing is buy a Ver.7 STI 6 speed with all that goes with it to swap from a 5 to a 6. The 5 speed was in a WRX Wagon with 80k on it and was service on a regular bases. Never lanuched and always put in gear before flooring it.

Last edited by dnorton; 02-13-2011 at 06:56 AM.
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Old 02-14-2011, 05:09 PM   #403
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This thread makes me wanna keep it stock.. wonder how long that will last
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Old 02-14-2011, 06:28 PM   #404
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Quote:
Originally Posted by scoobyx View Post
This thread makes me wanna keep it stock.. wonder how long that will last
depends on what you do with it.
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Old 02-14-2011, 07:20 PM   #405
flimflamman
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Quote:
Originally Posted by flimflamman View Post
My stock clutch started slipping a few weeks ago. ODO is at 59k.

*Knock on wood* the tranny still seems solid.

Still sporting the VF39 (300/340)

I'm going with a Southbend Stage 2 clutch kit. Should be breaking it in around Thanksgiving.
Finally replaced the clutch at 62k, but went with an OEM kit and a new OEM flywheel. I installed Motul 300 Severe Gear not long before the clutch repair. The tranny still feels good! *knock on wood*
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Old 06-12-2011, 09:53 AM   #406
thadd677
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Update for me... up to 75k on my car now (STi turbo went on at 20k). Details below:

-STi turbo @ 20 PSi
-STi topmount
-Full turbo-back exhaust

Don't know what the car makes for power but it's fast. Can hang with stock LS1's. One tranny fluid change since upgrading the turbo and no problems. Still on the stock clutch as well. This one is treating me well (knock on wood).
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Old 06-12-2011, 10:45 AM   #407
Big-E
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*2006 WRX, 49,000 miles
*EFI Logics ProTuned, 230whp/300wtq (my estimated net at the crank: 300/330)
*Four-season daily-driver, with occasional auto-cross for third year now
*No other motorsport events and definitely no street racing. No clutch dumps. Spirited driving: yes
*OEM engine/drivetrain.
*Many chassis and suspension mods
*Fluid is changed every year and has been changed 5-times so-far
*No clutch or transmission problems
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Old 06-12-2011, 11:57 AM   #408
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I am assuming you had it tuned and somehow the dyno couldn't read the torque levels correctly??? an STi turbo without being tuned will bring on the torque very VERY fast and if you don't harness it, it will break things.

Quote:
Originally Posted by thadd677 View Post
Update for me... up to 75k on my car now (STi turbo went on at 20k). Details below:

-STi turbo @ 20 PSi
-STi topmount
-Full turbo-back exhaust

Don't know what the car makes for power but it's fast. Can hang with stock LS1's. One tranny fluid change since upgrading the turbo and no problems. Still on the stock clutch as well. This one is treating me well (knock on wood).
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Old 06-12-2011, 12:12 PM   #409
kenliu84
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what's up, Eric???

I think I posted in here before but things have changed:

- opensource tuned to 306hp and ~320ft-lbs at the wheels with 20lbs of boost
- PnP VF43, Process West TMIC, Grimmspeed Uppipe with Tial MVS WG, Maddad TBE
- Perrin LCP, ACT Street/Strip clutch kit, resurfaced FW, PST carbonfiber DS
- started autocrossing again with this setup
- spirited driving, very careful when shifting 'fast' through the gears, no clutch dumps

What's important to note is that I've had 300plus ft-lbs of torque for over a year now for about 14K miles and there are no issues thankfully. Torque is NOT the cause of killing trannys, it's really dependent on how the driver uses that torque.

FWIW, I had a chat with my tuner, Cleo, at Precision Tuning. He reiterated what my philosophy is with modding cars so I felt really good about how I'm treating my car. He's had a 340ft-lbs tuned 03 WRX 5-speed for over 100K miles, no issues at all with his tranny. He was just careful with his transmission. When he tuned my car, the torque came on HARD and it reached 345ft-lbs at one point. I was concerned with that high amount of torque and I told him I want to sacrifice some torque for more horsepower. He told me he's thinking the same thing as torque getting into the 340plus range will start to break things, how my turbo spools so damn fast that the torque comes on very abruptly and that he had to adjust the timing to tune it down a little so it comes on smoother.
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Old 06-13-2011, 07:33 PM   #410
HCW5733
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I just hit 100K miles on my 06 WRX Wagon. PnP VF43, PnP stock headers, built motor, STI V7 TMIC, Exedy Stage 1 organic clutch. Been "Stage 3" for most of the car's life, still on stock gears. Just converted the FD from the stock 3.7 to 4.444 with appropriate speedo gear and took the opportunity to change the trans oil. 311 whp / 360 tq

Acceleration and overall experience is so much better now. It all comes down to driving style and technique.

Dyno Plot for comparison/reference:

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Old 06-13-2011, 09:12 PM   #411
thadd677
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Quote:
Originally Posted by kenliu84 View Post
I am assuming you had it tuned and somehow the dyno couldn't read the torque levels correctly??? an STi turbo without being tuned will bring on the torque very VERY fast and if you don't harness it, it will break things.
I'm running one of Clark Turners maps. Car runs great.
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Old 06-14-2011, 01:07 AM   #412
AtlxPat
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~48K miles total
db td06 20g 8cm housing @ 18 lbs 363whp/341 wtq - i just got this setup last month
prior to that i had a vf30 @ 308whp and 314 wqt for over a year and ~13k miles with no issues.
my transmission has been holding up fine and i have actually never changed the tranny fluid ever...doing that this weekend.
oh and stock clutch, i think i've launched my car 3 or 4 times in its lifetime @ less than 3k rpm and i use to beat the crap out of it when it had the vf30 on. being a little more cautious with the 20g
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Old 07-24-2011, 01:58 AM   #413
whitegalant
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06 WRX completely stock aside from cobb cone filter adapter. Odo at 72k just purchased car all gears feel fine no grinds and goes into gear smooth. "soft launched" the car once just to get a feel for it and everything is still good to go! lol
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Old 08-15-2011, 11:35 AM   #414
wrxtacular
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Default LGT gearset?

Just blew up 3rd in my 04 wrx wagon with 107 k and 278 whp. Anyone here have experience with LGT gears?
I'm trying to save a few bucks over PPGs, but I might go to a hybrid 20g or ATP 3076 down the road, and I don't want another new gear box.
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Old 10-09-2011, 08:35 PM   #415
buckwilly
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2006 16g-xt, sti tmic, 3" tbe
296 whp 343 wtq
108k miles

Blew 3rd gear after installing 16g turbo. I was stage 2 w stock td04 for 50k miles. Bought car at 54k with 5th gear grind that disappeared after uncle scottys cocktail. Stock clutch was fine, until my first spirited run in blueridge area. Now third just clunks when in gear. I am a bit of a granny shifter, never once ground a gear. So it's toast, I expected it would. 100k miles on stock clutch and gears was more than I expected reading this like 3 mos ago

Not much for cost sensitive remedies on this thread besides helical or ppg gears. At. $4-$5k for gearset, that's not an option for me.

After a bit of research flatiron's website has a sti standard ratio gearset for a decent price. Includes all 5 gears and they seem a bit stronger than lgt option which is still an option. I am going to be adding a stage 2+ clutch to accommodate. I am curious as to if the sti ra close ratio gearset kit would be a better option for me with 235/40/18 tires. I am not thrill about shorter 5th gear.
Sti standard ratio gear set seems to be perfect for my current power with some room to grow. I do not launch the car or track it at all. But would like room for tranny to take up to apprx 370 wtq
http://www.flatironstuning.com/p-619...o-gearset.aspx

Edit: after more research I went with Rallispec's version of the STi RA Close Ratio Gear set (Microhoned, REM Treated, etc), clutchmasters stage 1 clutch, new flywheel, and all new synchros. Purchased everything from Flatirons Tuning.
Total cost for all parts with labor for install and rebuild - $3,685 including tax. Gear set alone was apprx $1900.

Last edited by buckwilly; 10-31-2011 at 09:56 AM. Reason: gear set purchased - updated
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Old 10-30-2011, 11:41 PM   #416
shavednlayed
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I have an 06 w/ built motor, ACT 4-puck w/ lightweight flywheel, TD06sl2 20g 8cm... etc. running E85 at 23 psi w/ 391whp and 370tq.
I knew it was just a matter of time, but I ended up taking my ACT HDSS disk out after the 20g and switched to the 4-puck which was much harder on the trans and I spun the teeth off 3rd gear when I hit boost just driving down the street. When I bought the car I got a spare trans that the guy before me took out 2nd and was going to mesh the 2 together for the time being, but an unfortunate event just happened to a buddy and his 04 STI is now totalled. Luckily the timing was right and am now swapping to the STI 6 speed.
I've launched it hard a hand full of times and am surprised I didn't have an issue w/ 1st or 2nd before 3rd. These trans also have an issue shifting from 1st to 2nd and like to stick... needless to say I can't wait for my 6 speed and will never look back!

Last edited by shavednlayed; 10-30-2011 at 11:48 PM.
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Old 10-30-2011, 11:43 PM   #417
AtlxPat
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holy, lol 4 puck
you crazy!
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Old 10-31-2011, 02:12 AM   #418
jexeffectz
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120k miles...18g turbo with supporting mods. Recently went e85 around 8k miles ago. OEM bushings besides swaybar and ALK. Occasional track use, lots of canyon time.

OEM trans, ACT Clutch and Flywheel...only problem I recently had was a broke clutch fork. Now there's some weird winding noise on cold starts. After the car is warm, winding noise seems to go away...sort of, but not all the time.

If this trans goes out, it looks like I'll be going six speed.
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Old 11-07-2011, 01:34 AM   #419
oh6wrx
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06 WRX, VF43/FMIC/3" TBE. 300whp/315wt. On that power for over a year now

Blew third gear out friday night getting on the freeway. It was lame, because I wasn't even on it hard (that time!). Im not sure what I'm going to do yet, but this thread is definitely full of ideas.
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Old 11-07-2011, 01:55 AM   #420
shavednlayed
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Quote:
Originally Posted by oh6wrx View Post
06 WRX, VF43/FMIC/3" TBE. 300whp/315wt. On that power for over a year now

Blew third gear out friday night getting on the freeway. It was lame, because I wasn't even on it hard (that time!). Im not sure what I'm going to do yet, but this thread is definitely full of ideas.
Exact same thing happened to me! I was just driving and hit boost in 3rd... and then no more teeth on the gears! Luckily one of by friends just totaled his 04 STI that had a whine in 4th, so I'm picking up everything for only $1400 and with the rebuild and changing the rear diff to the 3.90 I will be under $3000. If you have the money, I advise getting a blown 6speed and converting it to the 07+ gear set w/ billet shift forks!
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Old 11-07-2011, 03:01 AM   #421
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I think i might go the RA gears route. seems like they are really strong...I plan on going 20g pretty soon and hopefully putting down 350-370whp. Think the RAs are good for that?
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Old 11-07-2011, 03:08 AM   #422
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I tanked 3rd getting on the highway too.....





Hit 19lbs, heard a bang, car pulled timing like crazy, and I suddenly had 2 neutrals

06 TR

7 shortblock, VF43 on a 44mm EWG, SSAC IC, TBE, Tune, blah blah blah. Replaced with LGT gears, and havent had a problem yet, and I am by no means nice to the car.
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Old 11-07-2011, 09:00 AM   #423
buckwilly
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The Rallispec STi RA Close Ratio gear set is at about 600 miles now in break in. I haven't driven the car or gear set hard since the transmission rebuild. I wouldn't be able to officially tell anyone what the Rallispec Gear set I have is good to in terms of horsepower and torque but obviously its better than LGT gears. I almost went the LGT gear route but flatiron and Dave at Rallispec seem confident that the Rallispec JDM STi close ratio set will be better suited for the power I am making now and have no issues for a daily drive making 300 whp and 340 wtq. I am not a hard shifter and do not track the car. . at those speeds. Those are the only 3 CONS I can think of with this new gear set:
1)The speedo is also off 2-3 mph
2)The car does hit about 3600rpm at 80 mph
3)Gas mileage seems to have dropped about 1-2 mpg on highway due to the higher rpms at 70-80 mph.

As for driveability, 1-4 gear feel, etc, things are going well. Car is an animal even in the lower rpms, its definitely "Different" even keeping it under 4000 rpms. 1st gear is now a usable gear - its amazing. And 2-4th gears are much longer and faster (if that makes sense), how long? not sure because I taking my time with revs and break-in. I had a 1992 Nissan Sentra SE-R and the gearing of that car is a lot like what my subaru feels like now...except a lot more power. LOL.

I will update as I break the gearset and clutch in and swap some Subaru Extra-S in after break-in transmission flush.

The new clutch, syncros, and gear set have been fantastic so far. It was an expensive upgrade, so I hope it does the job.

BTW- This is what my 3rd gear looked like after it blew. A few syncros were also pretty messed up.

Last edited by buckwilly; 11-07-2011 at 10:39 AM.
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Old 11-07-2011, 10:44 AM   #424
jprice130
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Very interesting thread with lots of good information. I currently have a 06 WRX TR with a Blouch 18G turbo and the stock tranny and clutch. I have about 4000 miles since my turbo upgrade and tune and I'm starting to get a terrible sound from a bearing in the transmission. Car seems to be performing fine, but when I'm idling at a stop light, the transmission sounds awful. It's especially bad when the car is in neutral and the clutch pedal is up. Sound goes away (or is less noticeable) when I push the clutch in.

Looks like I'll have to have my performance shop pull the transmission out to diagnose the exact problem and I'm wondering if I should just go ahead and do an upgrade of some kind since I'm already going to have to pay for a day's worth of labor. Can't decide if I should look for a 6 speed, upgrade the gear set in my 5 speed, or just not worry about it and get the offending bearing(s) replaced. Decisions, decisions....
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Old 11-07-2011, 12:48 PM   #425
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Quote:
Originally Posted by jprice130 View Post
Very interesting thread with lots of good information. I currently have a 06 WRX TR with a Blouch 18G turbo and the stock tranny and clutch. I have about 4000 miles since my turbo upgrade and tune and I'm starting to get a terrible sound from a bearing in the transmission. Car seems to be performing fine, but when I'm idling at a stop light, the transmission sounds awful. It's especially bad when the car is in neutral and the clutch pedal is up. Sound goes away (or is less noticeable) when I push the clutch in.

Looks like I'll have to have my performance shop pull the transmission out to diagnose the exact problem and I'm wondering if I should just go ahead and do an upgrade of some kind since I'm already going to have to pay for a day's worth of labor. Can't decide if I should look for a 6 speed, upgrade the gear set in my 5 speed, or just not worry about it and get the offending bearing(s) replaced. Decisions, decisions....
The cost of going to a 6 speed vs a Rallispec STi Close ratio or standard ratio gear set is about $2-$3K difference minimum. My entire build included all new parts except the bearings (still in excellent shape per the builder) and transmission case. I looked into going with a STi 6 speed and the cost was just too much for me. I would only go with a new 6 speed because I don't want someone's used tranny with potential issues - cheapest new 6 speed not including the conversion kit was $4K. I wanted to start fresh so I just rebuilt what I had with all new parts. I also wanted longer 1-4th gears. It all depends on what you want to use your transmission for and the type of driving you do, power you make, etc etc. Its actually quite a task to make this decision and a lot of research was involved on my end. It took me about 2 weeks to make my final decision. Also, be sure to get a good builder to do the build if you decide to rebuild your 5 speed. I was more worried about who was building the tranny and their experience. Once you crack the tranny, you may as well beef it up. There are benefits with the 6 speed including a front diff and adjustable center diff, but there are a lot more parts needed for the conversion.
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