Hi i was on the verge of getting the Stage 2 setup from Cobb, when i was wondering what could get me a little bit more power and fun
now the setup i was looking at was this one:
Cobb AP v2
Cobb TBE
VF34 Turbo
Fuel pump
i was wondering if i needed to change my injectors and the intercooler for a 2k6 WRX and was also wondering if i needed anything else, i'm looking to get arround 300 whp
my brakes and tires have been changed, othe mods i will probably do this summer is a clutch/ tranny kitt to beef it up (stock 5 speed) and a handling package (stut's sway's and coils)
another question: will me 5 speed withstand 300 whp??
any other recomendations for the TBE or turbo (nothing really bigger please than 300-350 whp or so...) will be welcomed!
you'll most certainly want an intercooler (probably a TMIC). And you'll want to get it tuned as well. Your injectors will work unless you want to push that turbo to the max in which case you might max the stock injectors. Also consider an intake (if getting it tuned).
... and money set aside for when you bust your tranny.
i was planing for the STI TMIC or any otehr cheap alternative for the stock one, and as for the tranny, i will be very gentle with it, i am already saving up for the 6 speed STI tranny as i'm on a waiting list to get my car suped up, final mod's will be (for now...)
Vf 39
CAI
3" TBE
Fuel pump
ECU
for now, untill i want more power, for now i'll just build up the cash for the 6 speed, all my other mods have been done:
coils, struts sway bars
brakes have been changed in the front
tires have been changed (of course)
i have taken a few aggressive driving courses
VF39 you can get away with stock injectors and the STi's TMIC and do pretty well.
VF34 you will want to go with bigger injectors and a bigger intercooler to push near 300whp (the limits of that turbo)
I have the VF-39 in my car with stock injectors and they are maxxed out hard. The newer wrx's come with much better injectors than us 2.0 guys got, so you would probably be fine running the VF-34. Either way, if you want 300 whp, you are gonna need bigger injectors. In the grand scheme of things, it's not that much more money to make sure the car is put together right and you don't have any problems down the line.
The STI intercooler seems to work really well on the WRX's. I have also heard really good things about some of the less expensive ebay top-mounts, any one tried one of those?
You can baby the trans all you want but with 300whp its goin to go anyway because the final drive on the 06 WRX was changed so you cant pull really hard from 3rd now.
I have the VF-39 in my car with stock injectors and they are maxxed out hard. The newer wrx's come with much better injectors than us 2.0 guys got, so you would probably be fine running the VF-34. Either way, if you want 300 whp, you are gonna need bigger injectors. In the grand scheme of things, it's not that much more money to make sure the car is put together right and you don't have any problems down the line.
The STI intercooler seems to work really well on the WRX's. I have also heard really good things about some of the less expensive ebay top-mounts, any one tried one of those?
yes i have the ss autochrome tmic that i bought used off ebay....i love it, iv heard it is bigger and better then the sti tmic one for cheaper. it is a little tuff to install i recommend getting new ic hoses cause the stock ones wont work, and there was some rubbing issues but that was solved easy enough, look at my profile and you will see pics of it installed.
Thanks k rhayes...i have been wondering if those were worth looking into...nice pics too.
Rum Bacardi, I have been running the stock tranny with this setup for about a year and a half. I'm not exactly sure what hp the car is putting to the ground (No decent awd dynos in my area), but it's running high 12's in the quarter, which should work out to about 320-340 hp.
I drive the car hard, and my car is proof that the stock tranny can last a long time if taken care of, but i have been lucky. Especially since i race my car at the dragstrip and autocross course every month. It's only a matter of time before i break something in there. I have a set of cryoed and treated gears just waiting for that day. Untill then, i'll see how long mine can go. I'm not saying that your tranny will last as long as mine, it could last a day with this kind of horsepower, or it could last a lot longer. Bottom line is that the WRX 5-speeds are weak, and you should be prepared for the worst if you start turning up the power.
thanx a ton guy's you have been very helpfull and I have now made up my mind with my future setup, i will baby my tranny for a good whyle, save up for the 6 speed STI and once i have the money simply install the STI and boost a little more out of my engine
Just to let you know there are a few extra things you have to install with an STi 6 speed.
Plus 1 for Unabombers Manifesto on NASIOC
What's involved with swapping from a 5MT to a 6MT? You will need to obtain and install the following components:
1. A complete 6MT transmission.
2. 6MT transmission mount.
3. 6MT clutch fork.
4. 6MT shift knob, 6MT shifter linkage, and 6MT shift boot.
5. The drive shaft from a 6MT or the drive shaft from any model automatic transmission equipped Subaru. The stock WRX 5MT drive shaft may also be modified (will need to be shortened) to fit as well.
6. New rear end options:
a. New ring and pinion gears to upgrade the stock WRX R160 rear differential to 3.90.
b. Convert the 6MT center differential from 1.0:1 to 1.1:1 and use the stock WRX R160 rear differential.
c. Swap out the stock WRX R160 rear differential to a stock STi R180 rear differential.
The real decision to a 6MT swap is the rear differential, as going with the R180, though the "better" choice, raises the costs significantly as you need to use the entire rear end consisting of the STi driveshaft, STi rear half shafts, Sti rear hubs, and STi rear discs to include the Brembo brakes. This will also require the use of 17" wheels as well to accomidate the bigger brakes, which for some, may be an additional expense. As well, www.gearboxtech.com sells the parts that let you use R180 inner CV joints and the R160 outer CV joints if you want to use the R180 rear end and not swap over to the R180 hubs/brakes.
the sti 6-speed is not a good swap. It's still not indestructible either. Your best bet is a PPG. Better gear ratios and you can drop the clutch on it, even an upgraded clutch (if you know what you're doing). It's probably cheaper too.
Generally, it's better to sell your WRX and buy an STi if you want the STi's tranny.
Yeah, definately not worth transplanting a 6-speed into a wrx. Besides, the PPG gears are MUCH stronger, you can get better gear ratios (quite a few to choose from), and after all is said-and-done, quite a bit cheaper than the 6-speed transplant.
the sti 6-speed is not a good swap. It's still not indestructible either. Your best bet is a PPG. Better gear ratios and you can drop the clutch on it, even an upgraded clutch (if you know what you're doing). It's probably cheaper too.
Generally, it's better to sell your WRX and buy an STi if you want the STi's tranny.
Quote:
Originally Posted by squidz
Yeah, definately not worth transplanting a 6-speed into a wrx. Besides, the PPG gears are MUCH stronger, you can get better gear ratios (quite a few to choose from), and after all is said-and-done, quite a bit cheaper than the 6-speed transplant.
I have heard of the STI swap running in upwards of $6k if not more. When I get back from my deployment I will be spending Just over $4400 for PPGs, that includes parts and installation and they said it will only take 2 days to do. Im looking forward to the upgrade.
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