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turbo choices for the 08 wrx sedan

32K views 80 replies 14 participants last post by  turmic 
#1 ·
i'm stuck with 3 choices on which turbo to use. currently i have a stock tmic, 3" turbo back catless exhaust, cobb stage 2 map. next on my list is injectors, pump, turbo and CAI. these are what i've found and are listed as follows:

VF52 Turbocharger Combo 2 $1475

Deatschwerks Top Feed 750cc Injectors w/ Walbro Pump and Tomioka TD05-18G Turbo $1400

Deatschwerks Top Feed 750cc Injectors w/ Walbro pump and Tomioka TD05-20G Turbo $1650

vf52 claims 320whp if used with 650cc and protune
TD05-18g claims up to 350whp
TD05-20g claims up to 400hp

is anyone running the vf52 with 750 injectors? Or any of the other mentioned turbos? what whp are you seeing?

My aim is low to mid 300whp range without having to max the turbo on boost, leave some room to grow if the occasion calls for it. i might just grab the injectors and pump first but am still on the fence on which turbo to use. i haven't heard about tomioka, but they are within my budget, and er'body knows the vf52. i'll still keep searching the forums for answers to my questions but look forward to yalls input. thanks!
 
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#54 ·
LOL... HEY FELLAS, I THINK THE DISCUSSION WENT SIDEWAYS FROM THE MAIN TOPIC AGAIN... WHICH WAS, OUT OF THE VF52, 18G, AND 20G WHICH WOULD BE THE BETTER?

THEN THE AMR CXR500 ENTERED THE PICTURE...WTF

HERES THE TURBO-PRICE-MAX WHP/HP AND EACH TURBO IS STOCK LOCATION BOLT ON FOR TMIC

CXR500 $1400 430WHP
VF52 $1010 320WHP
Tomioka TD05-18G $900 350WHP
Tomioka TD05-20G $1140 400HP

MY CURRENT MOD LIST IS 3" TBE AP STAGE 2 MAP.

WITH THAT SAID I KNOW I WILL NEED AN UPGRADED TMIC IF I GET ANY OF THESE TURBOS, INJECTORS AND 255 PUMP, PROBABLY INTERNALS DEPENDING ON HOW MUCH BOOST. MY ELEVATION IS 3600 AND HIGHEST OCTANE IS 91.

CAR IS USED AS A DD AND OCCASIONAL TRACK. WHAT TURBO DO I USE :confused:

JUST RAN FRIDAY HIT 14.28 IN THE 1/4 TRYING TO SHAVE AT LEAST ONE MORE SECOND OFF AND I'LL BE GOOD.
 
#59 ·
I agree with Keith also, but like him, Im biased. If you are still using the car as a DD, the 20G is a great turbo for that. You can "de-tune" it until you can push the turbo to its limits and then crank up the boost when you have all your other ducks in a row.
 
#61 ·
^ 400whp is possible with the 20g, I'm real close to that on E85 only boosting 20psi because of my small top mount. I would be hitting 400whp if I ran only one more psi add a couple and would definitely hit that number. All I would need is a fmic to turn up the boost a little. Yes I dyno on a mustang as well. Probably not gonna happen on pump gas tho, not even close with 91.
 
#63 ·
^So brfatal was right on by saying take 20-30whp off for 91 oct, putting you at 275 instead of 290-300.


Also I'm pretty sure all the turbos the op mentioned are direct bolt on to the stock layout. The only one I'm not sure about is the CXR, I know all the other ones are a direct fit.
 
#64 ·
Ah, I'm always thinking about a blouch 20g, not the deadbolt style modified OEM compressor housing.

My steps have been pretty linear...

270/295ish on 91
300/325 on 93
338/341 so far on E85 (same boost target as 93 tune is why the tq is pretty low)

That last one is on the romraider dyno though, airboy didn't like the log my tuner emailed me. Final tune is this weekend and I'll get a proper airboy number. It'll probably end up right about where it's at right now and we'll be adding a bit of power.
 
#70 ·
black beast2 said:
What psi are you pushing, your profile says 21psi but it also says 264whp on stock turbo so I assume it needs updating.
Oh crap sorry didn't realize that was still on there...err have to change that and 264whp wasn't the stock turbo that was a hybrid turbo that I build...
MHI TDO6 20g 7cm2 650cfm IWG<--I know I should go EWG, but it's my DD
2.34L 8700 redline(no the turbo doesn't hold full boost to redline)
24psi
Give you a hint: at 18psi I'm trapping 90mph in the 1/8 mile.
:D
 
#75 ·
Shit I was 2 100ths of a second away on 18" rims, wanli tires and heavy premium wrx. You can hit 11s with 20g or 30r wow...good luck holding your motor together...Did i mention my 2011 is lighter car, lighter wheels, sticky tires, some colder weather or maybe a fmic...its a done deal at 11.6 or 11.7 all day at 115 116 mph
 
#77 ·
Here you go put the bs to rest....mustang dyno like I was tuned on...vf52s,18g,20g, and the most impressive a 900$ tomioka 20g lol
2010 Subaru Impreza WRX
Travis Barnaby
07-01-2011 03:43 pm 309 hp 347 ft/lb Perrin FMIC, DW 1000cc Injectors, Turboback exhaust - Tuned by EFI Logics [Details]







08-13-2011 03:16 pm 371 hp 354 ft/lb Added 2.5XTR, KStech 73mm intake, DW850cc Injectors [D
This turbo is impressive what why such weak tq, I put down my with my vf52?




This is good if its vf52 on pump gas? ED JACKSON


08-13-2011 03:28 pm 302 hp 322 ft/lb GrimmSpeed BCS, Cobb SF, Invidia Turboback exhaust - Tuned by EFI Logics



i

2011 Subaru Impreza WRX
Jim pdiddy
01-07-2011 04:47 pm 267 hp 300 ft/lb Invidia Catted Downpipe - Tuned By EFI Logics [Details]
02-12-2011 04:17 pm 289 hp 318 ft/lb Added SPT Exhaust and KSTech 65mm Intake - Tuned by EFI Logics [Details]
05-17-2011 12:13 pm 331 hp 379 ft/lb Added ID1000cc Injectors, Aeromotive Pump, E85 Fuel - Tuned by EFI Logics [Details]
05-17-2011 12:13 pm 296 hp 313 ft/lb Added ID1000cc Injectors, Aeromotive Pump, 93 Octane Fuel - Tuned by EFI Logics [Details]
08-02-2011 02:27 pm 411 hp 403 ft/lb Added Dom 2.5XTR, KST73mm Intake, TurboXS FMIC - E85 Tune by EFI Logics [Details]
08-13-2011 03:03 pm 370 hp 360 ft/lb 93 Octane tune

impresive whp but weak tq levels I dont get it...is your mustang dyno the same as innovative in buffalo?



good vf52 tune was this on pump?


2008 Subaru Impreza WRX
Red Charge
09-28-2010 10:41 am 306 hp 323 ft/lb VF52, DW750, Perrin EL Header, Perrin Intake, GS BCS, Perrin TBE - Tuned by EFI Logic




THis is power I am looking for on pump gas! Right here....18g sounds great?



2008 Subaru Impreza WRX
Todd Doiron
03-20-2009 05:00 pm 223 hp 315 ft/lb Perrin headers, up pipe, down pipe, cat back, turbo inlet. AEM intake. HKS blow off [Details]
01-23-2010 01:40 pm 330 hp 347 ft/lb Blouch TD05 18G, DW750cc injectors, Grimmspeed Solenoid, Perrin headers, up pipe, down pipe, cat back, turbo inlet. AEM intake. HKS blow off



800$ chinese turbo vs those overrpriced dom or 20g name brand turbos....impressive this might be my turbo right here....actually makes more tq than whp
how much boost and was he running pump tho is the question?



02-12-2009 05:00 pm 345 hp 377 ft/lb Tomei 44lb Turbo, FMIC, 850cc Injectors, Tuned by EFI Logics





2008 Subaru Impreza WRX
Kirk Valentine
06-24-2009 05:00 pm 347 hp 359 ft/lb Blouch 18G, DW750cc Injectors, Ultimate Racing FMIC, APS Turbo Inlet, Invidia DP, Agency Power catback, Grimmspeed BCS, Cobb AP V2 tuned by EFI Logics
 
#81 ·
Oh it definitly spools a tad faster than the 2.5 XTR...It gives up a bit of high end for the quick spool. Its all in what you want. It still makes some good numbers with quick spool.
 
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