wrx 5spd build options??

[justpunchit]

looking for options (if any) to beef up my 5spd in my 05 wrx?? any options for me, hardend main shaft assemby's???? anything like that

* Registered users of the site do not see these ads.

[jproland]

I'm in the same boat and decided to rebuild using the STI V6 RA cryo'ed gears. Wider and the ratios are more agressive to keep your car on boost for optimal performance.

[Paintballguy]

one answer = PPG's

one solution = call andrewtech www.andrewtechautomotive.com

[norexyet]

Originally Posted by justpunchit

looking for options (if any) to beef up my 5spd in my 05 wrx?? any options for me, hardend main shaft assemby's???? anything like that

What type of power are you going for?? You can do cyro ra gears, ppg 1-2, ra 3-4-5, ppg 1-4. So many options out there. PPG has billet shift forks, i am pretty sure they have hardened shafts that come with the new gears.

[jproland]

Originally Posted by Paintballguy

one answer = PPG's

one solution = call andrewtech www.andrewtechautomotive.com

That's what I wish I could do but...

PPG-4S5T PPG 4 Gear Subaru 5MT Synchro Gear Kit $3450
PPG-5D5T PPG 5 Gear Subaru 5MT Dog Gear Kit $6250


Very nice if you have DEEP pockets..

[justpunchit]

Originally Posted by jproland

That's what I wish I could do but...

PPG-4S5T PPG 4 Gear Subaru 5MT Synchro Gear Kit $3450
PPG-5D5T PPG 5 Gear Subaru 5MT Dog Gear Kit $6250


Very nice if you have DEEP pockets..

hmmm dog gears? whats the difference with that and a synchro gear?



nevermind looked in my textbook found out

[keaniegenie]

Originally Posted by jproland

That's what I wish I could do but...

PPG-4S5T PPG 4 Gear Subaru 5MT Synchro Gear Kit $3450
PPG-5D5T PPG 5 Gear Subaru 5MT Dog Gear Kit $6250


Very nice if you have DEEP pockets..

Right, and that doesn't include the labor...

Legacy GT gears is one option

The other is RA gears.

Legacy GT 1-2's have a bigger tooth/root than the WRX gears, and are similar to the RA's. Nice, cheap option to improve ratios and strength.

[jproland]

Originally Posted by justpunchit

hmmm dog gears? whats the difference with that and a synchro gear?



nevermind looked in my textbook found out

rallispec says

"What about dog gears, aren't they a lot stronger? Most dog gears use a straight cut (spur) gear design instead of the helical gear profile used by Subaru. Spur gears are actually weaker than helical gears for the same width and tooth pitch. This is because there are fewer teeth meshed at the same time and the curve of the helical profile creates more surface area. However, replacing the synchronizers with dogs allows the manufacturer to significantly widen the gear widths so this loss in strength is reclaimed and then some. We've seen that some of the cheap aftermarket gearsets (dog or synchro) can be actually more prone to failure than an RA set. This is usually a result of insuficient heat treatment or excessively hardening the gears (creating a brittle gear not capable to absorbing high shockloads)."

[hystikal]

Originally Posted by jproland

rallispec says

"What about dog gears, aren't they a lot stronger? Most dog gears use a straight cut (spur) gear design instead of the helical gear profile used by Subaru. Spur gears are actually weaker than helical gears for the same width and tooth pitch. This is because there are fewer teeth meshed at the same time and the curve of the helical profile creates more surface area. However, replacing the synchronizers with dogs allows the manufacturer to significantly widen the gear widths so this loss in strength is reclaimed and then some. We've seen that some of the cheap aftermarket gearsets (dog or synchro) can be actually more prone to failure than an RA set. This is usually a result of insuficient heat treatment or excessively hardening the gears (creating a brittle gear not capable to absorbing high shockloads)."

This doesn't apply to PPG, the stuff that andrewtech sells.

[Big_Hitter]

Originally Posted by jproland

That's what I wish I could do but...

PPG-4S5T PPG 4 Gear Subaru 5MT Synchro Gear Kit $3450
PPG-5D5T PPG 5 Gear Subaru 5MT Dog Gear Kit $6250


Very nice if you have DEEP pockets..

would you rather get cheap (R/A gearset) and pay another $2500 when it breaks again?

may as well pay the $4500 once and get it over with

<--- getting PPG

[norexyet]

Originally Posted by Philistine

would you rather get cheap (R/A gearset) and pay another $2500 when it breaks again?

may as well pay the $4500 once and get it over with

<--- getting PPG

there is nothing wrong with ra's. please don't post wrong info.

[JMK508]

Go for PPG. I know its alot of money but you cant put a price on peice of mind. I can drop my clutch as many times as i want and PPG's just smile right back at you. I only drive real aggressive mabye once or twice a month,but it is real nice to know that you wont hear a pop comming from your tranny. Its peice of mind.....thats all it is.

[mxboy15u]

What is "wrong info" about RAs breaking? They do break. PPG is the only gearset that is strong enough to take REAL abuse.

[norexyet]

There is a member on here going low-mid 11s on ra's with many launches on them and no issues. Not everyone has an extra $3000 to spend on ppg's, even though they are stronger. Ra is a good upgrade for wrx owners, they are very nice to drive and are an affordable upgrade for those that don't have insane power levels (less then 350whp). I will take a 6 speed over ra's and ppg anyday. I assume you had ra's and are speaking from experience?

[Big_Hitter]

Originally Posted by norexyet

for those that don't have insane power levels (less then 350whp).

er...d00d, hp doesn't break gearsets, torque does

(talk about wrong info)

[norexyet]

Originally Posted by Philistine

er...d00d, hp doesn't break gearsets, torque does

(talk about wrong info)

actually shock does.

[Big_Hitter]

^^^ well, mine assploded on a dd dyno on a mild 3rd gear pull this weak so it wasn't shock that did it....just mad powah!!111!

[norexyet]

Originally Posted by Philistine

^^^ well, mine assploded on a dd dyno on a mild 3rd gear pull this weak so it wasn't shock that did it....just mad powah!!111!

or the junk 02 trans. If you have 5K for ppg's do it. They ARE a better gear, but 95% of people can't just say it is just $5k, no big deal.

[Big_Hitter]

yeah, my tranny has been carp ever since I used launch control at the track one time (bad idea)

there are a few ppl here that have the RAs and have had no problems whatsoever

I've been justifying this to my wife so many times lately that I'm sort of on "PPG autopilot" any time this comes up

[norexyet]

Originally Posted by Philistine

yeah, my tranny has been carp ever since I used launch control at the track one time (bad idea)

there are a few ppl here that have the RAs and have had no problems whatsoever

I've been justifying this to my wife so many times lately that I'm sort of on "PPG autopilot" any time this comes up

thats all i ever try to say when an ra sucks person posts. They serve a purpose. We have installed countless sets where i work and people love them. I personally run ppg if i had a 5 speed box.

[JMK508]

How much are RA's? like 1400 or something plus labor.

[Big_Hitter]

well, you want to do the synchros too, add another 250

labor is prolly around 900 or so

($2500 all in)

[norexyet]

it depends most on the shape of the trans that you do it it. If it is blown up then you may have to replace more parts. Or if it is really good shape you may spend less. Anywhere from $2000-$3000 i would say