turbo choices for the 08 wrx sedan - Page 2 - Subaru WRX Forum
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#16 Old 08-04-2011, 09:51 PM
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got a lil off topic... lots of good info though! but to try and steer back to what im asking is what of the three choices would be the best for the money with the mods i currently have?

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Originally Posted by Kamikaze575 View Post
currently have 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 750cc w/ walbro pump $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!
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#17 Old 08-04-2011, 10:19 PM
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If you want some room to grow out of the three I would go 20g. VF52 is pretty much maxxen around 320, but it's spool is fantastic, almost NA feeling if tuned right. Remember it's not always max hp that makes the faster car.
-Carl
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#18 Old 08-04-2011, 10:35 PM
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So what you are saying is that he is full of hot air???? I kid, I kid...
you could of made that joke a lot worse for me for what i said haha

Scott-2011 WRX 335HP 394TQ 93 VF52!
http://www.wrxtuners.com/forums/f121/2011-wrx-build-31226/
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#19 Old 08-05-2011, 12:03 AM
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Quote:
Originally Posted by Kamikaze575 View Post
My aim is low to mid 300whp range without having to max the turbo on boost, leave some room to grow


If I run only 18psi I'm putting down around 325whp on pump and 365whp on E85, if you go to cobbs website you can find my 18psi dyno plots in surgelines database. So I'd say that would be exactly what you are looking for.
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#20 Old 08-05-2011, 06:16 AM
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I personally push the evo3 16G with Meth/e85

You start getting into the bigger GT's and 20 g's you start to lose your bottom end where it's the most fun.

Although, the HTA's feedback is nice as well.

Paul
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#21 Old 08-05-2011, 07:57 AM
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Dom 1.5xt-r... My tuner back in utah just put one on his 06 STi and it's making 400 on E85 ON AIRBOY. For instance, I'm hoping I can hit 330 on airboy on E85 on my VF52 (made 270 on 91, 300 on 93, about 200 stock).

That turbo is proving to be almost the perfect stock location bb turbo if you don't care about too much top end.

-Chris
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#22 Old 08-05-2011, 08:05 AM
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Originally Posted by pzr2874 View Post
getting into the bigger GT's and 20 g's you start to lose your bottom end where it's the most fun.
wouldnt going to a bigger turbo improve the bottom end over stock? only racing here is str8 line 1/4 mile.

i talked with josh from import image, he suggested the AMR. The cxr500 price sitting at $1400. then theres the tomioka 20g sitting at $1150

so i've tossed out the vf52 and tomioka 18g.

cxr500 claims 350whp-430whp and stock location bolt on w 1yr wrnty

tomioka claims 400hp and stock location bolt on no specified wrnty

i dont mind spending the extra 200 for some good quality. so looks like amr might be the way to go.

so should i just forget the 750 injectors and go 1000?

i will be getting either a pro tune or temp e-tune once i install this.

side note: anyone hear of camtuning?
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#23 Old 08-05-2011, 08:12 AM
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Just let it be known that pushing that much power on the stock block is pushing it. You'll need a rebuild at some point if you start pushing the car that hard. Clutch won't last too long either.

-Chris
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#24 Old 08-05-2011, 08:47 AM
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Cam is the bomb.... He tuned 2 of my cars and also a few friends of mine. So, yes... He knows his shtuff.

Paul
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#25 Old 08-05-2011, 09:59 AM
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Originally Posted by synolimit View Post
a mustang can be set to read just as easy. the dynojet can also be forced to read what ever you want. brand doesnt matter. what matters is i started at one spot and ended at the same spot so results would be the same. if those numbers cant be reached even on E85 then what your saying is on 93 pump a stock vf52 isnt even putting down 200hp. to me thats totally incorrect and to low reading, the owner needs to go in and adjust things.

point is ive made 100hp and 120tq over stock and that was before my last power added mods. even if we split the difference of your dyno and mine and made it 215hp for stock id still be at 315hp and with headers etc. id hope for 325hp and thats only on 21psi with a 15.5 psi taper. now add all my parts, injectors etc and push 23psi with a 16-17psi taper and id be all over 330+. E85 and your well over that!

gotta say your wrong on the vf52 even on a lower reading dyno.
Well, keep thinking what you want, but you're not going to be pulling 350 whp results if you go to the track. Don't be surprised to see an 18G'ed WRXs pulling on you.

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Originally Posted by Kamikaze575 View Post
wouldnt going to a bigger turbo improve the bottom end over stock? only racing here is str8 line 1/4 mile.

cxr500 claims 350whp-430whp and stock location bolt on w 1yr wrnty

tomioka claims 400hp and stock location bolt on no specified wrnty
?
A bigger turbo will take longer to spool up, that's what he's referring to. And be aware that turbo venders ALWAYS post inflated numbers. Both turbos are essentially the same (CX500 is AMR's 20G) and both will put down +/- 350 whp while reaching peak boost between 3,800 and 4,400 RPM (depending on the options and other parts of your setup). I ran a TD06H-20G for several years on a 2.5L and just went larger.
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#26 Old 08-05-2011, 01:23 PM
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Quote:
Originally Posted by RcrsWetDream View Post
Dom 1.5xt-r... My tuner back in utah just put one on his 06 STi and it's making 400 on E85 ON AIRBOY. For instance, I'm hoping I can hit 330 on airboy on E85 on my VF52 (made 270 on 91, 300 on 93, about 200 stock).

That turbo is proving to be almost the perfect stock location bb turbo if you don't care about too much top end.
hell id be pretty happy with 400 top end! although you did say e85. what inlet did he get? what turbine?

Scott-2011 WRX 335HP 394TQ 93 VF52!
http://www.wrxtuners.com/forums/f121/2011-wrx-build-31226/
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#27 Old 08-05-2011, 01:29 PM
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Originally Posted by brfatal View Post
Well, keep thinking what you want, but you're not going to be pulling 350 whp results if you go to the track. Don't be surprised to see an 18G'ed WRXs pulling on you.
well ive got as much or a little more done then a few other guys who put down 12.0 1/4. if a 18g pulls on me and gets into the 11's then kudos to him!

I totally dont believe in this crap but...http://robrobinette.com/et.htm plug in 3050lbs and 340whp, seems on par to me.

Scott-2011 WRX 335HP 394TQ 93 VF52!
http://www.wrxtuners.com/forums/f121/2011-wrx-build-31226/
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#28 Old 08-05-2011, 02:12 PM
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thats if i use the turbo to its full potentiakl im talking about using it within 320whp then after i install some pistons, rings and rods then maybe pick it up to its fullpotentiakl i only wann have to buy one turbo in stead or 2 or 3
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#29 Old 08-05-2011, 02:35 PM
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Quote:
Originally Posted by synolimit View Post
well ive got as much or a little more done then a few other guys who put down 12.0 1/4. if a 18g pulls on me and gets into the 11's then kudos to him!

I totally dont believe in this crap but...1/4 Mile ET Calculator plug in 3050lbs and 340whp, seems on par to me.
Yet what do you run, and more important than the ET, what is your trap speed?

And that generic calculator is wildly inaccurate. Nor is your car (with you in it) magically 150 lbs less than the factory curb weight of a WRX.
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#30 Old 08-05-2011, 02:47 PM
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If you are going for a Turbo that will lay down 320whp and "have room to grow", you really only have one viable option, and that is the 20g. If you are going to be putting forged internals, you could even argue that is on the small side. It's tough to put a turbo in a car that is at it's peak in completely different layouts, stage 2 - stage 5 (which if you put internals + supporting mods is about where you'd be) is completely different. A 20g fits the bill pretty well. Slower spool, but more on top. The 18 and VF52 would run outta breath.
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