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Old 09-13-2019, 05:41 PM   #1
Trudd84
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Member#: 250706
Join Date: Jun 2010
Chapter/Region: South East
Location: Birmingham, AL
Vehicle:
2004 Impreza WRX
WRB

Default VF48 uograded Billet wheel, 6 Blade vs 11 Blade?

I am getting ready to replace my VF48. I am going to buy another VF48, PmPíd with a Billet wheel.

Can someone describe or explain, to me, what the differences would be?

Anyone with personal experience, your input would be greatly appreciated.

Thanks for reading.
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Old 09-13-2019, 10:12 PM   #2
subaru_gc8
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Member#: 29292
Join Date: Nov 2002
Chapter/Region: SCIC
Location: Orange County CA
Vehicle:
2004 WRX wagon
silver

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little faster spool should flow more with less baldes but its nominal. honestly if you are looking for more you should get a 16g
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Old 09-14-2019, 08:02 AM   #3
rtv900
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Location: philadelphia
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2016 STI

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doesn't the manufacturer provide data describing the differences?

something like that is pretty darn complex so there's no shortage of research you can do before making that call
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Old 09-17-2019, 11:33 PM   #4
wrxhard
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Location: Fargo, ND
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Generally speaking having the 11 full length blades will give you a broader compressor map while having the 6 double stacked blades will offer more high p/r efficiency.
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Old 09-22-2019, 08:40 PM   #5
Trudd84
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Member#: 250706
Join Date: Jun 2010
Chapter/Region: South East
Location: Birmingham, AL
Vehicle:
2004 Impreza WRX
WRB

Default

With having 200k on it, it made 289/287 to the wheels, on a dyno, with:
A used VF48
565 STi injectors
Walbro 255 fuel pump
Tomei Headers with 3 bolt up pipe(both wrapped)
Invidia catless down pipe
Kísai Charlesís Exhaust(Cobb & Stromung made this exhaust together or something like that. Full 3Ē but very ďadultĒ and not loud)
Radius engineering dual catch can setup
Perrin inlet and throttle couplers
T-clamped
Snorkus delete
Prova scoop induction ramp thingy(made for an older school forester and I trimmed it to work with my WRX, fits down in and behind the grill and scoops air into the scoop). Not that it mattered on the dyno in the middle of the summer...lol
Cobb boost controller
Cobb AP V3
ACT XT clutch with Street disc
OEM Flywheel new with clutch
Conservative but robust tune by Torqued Performance.
Max Boost is 21.5 tapering off, obviously.

Feal 441 suspension, StopTech St-40 4-potís with 328x28mm 2 piece rotors. Front and rear sway bars, Cusco front subframe brace, SPT Strut tower brace, as well. Bremboís with the KNS extended e-brake shoes to fit any 04 STi rotor.

Point is, the cars pretty much where I want it until the motor finally dies. I got 265k out of my first WRX, this is my second one.

I made the afore mentioned power on 22.2 pounds,a piece, Enkei Wheels.

Since then Iíve bought a set of Titan7 T-S5 Forged wheels and saved 15.6 pounds in rotational mass and.

My OEM VF is starting to smoke, sheís been good to me, but itís time. I like the car the way it is, spirited, spools quick(to me), has enough power to please me for my daily. However if I replace the turbo, I donít really want another used turbo. I want to maximize my spending by either making the car work easier to achieve the same, or be a little quicker in spool time, but I donít think Iím overly interested in more power/torque, necessarily.

What specific 16g is the step above a VF48?
I do understand I can simply move to bigger injectors and a fuel pump and probably reach very close to 300, but I requested a not full out everything tune. I wanted longevity.

I shift at 5800-6k, I donít redline the car, and wouldnít really utilize power past 6250rpm. So, with all that being said, what turbo is going to keep me at the same power, maybe a tad more, on the 565 injectors, and spool quicker than my OEM VF48?
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Old 09-23-2019, 01:03 AM   #6
subaru_gc8
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Member#: 29292
Join Date: Nov 2002
Chapter/Region: SCIC
Location: Orange County CA
Vehicle:
2004 WRX wagon
silver

Default

Quote:
Originally Posted by Trudd84 View Post
With having 200k on it, it made 289/287 to the wheels, on a dyno, with:
A used VF48
565 STi injectors
Walbro 255 fuel pump
Tomei Headers with 3 bolt up pipe(both wrapped)
Invidia catless down pipe
K’sai Charles’s Exhaust(Cobb & Stromung made this exhaust together or something like that. Full 3” but very “adult” and not loud)
Radius engineering dual catch can setup
Perrin inlet and throttle couplers
T-clamped
Snorkus delete
Prova scoop induction ramp thingy(made for an older school forester and I trimmed it to work with my WRX, fits down in and behind the grill and scoops air into the scoop). Not that it mattered on the dyno in the middle of the summer...lol
Cobb boost controller
Cobb AP V3
ACT XT clutch with Street disc
OEM Flywheel new with clutch
Conservative but robust tune by Torqued Performance.
Max Boost is 21.5 tapering off, obviously.

Feal 441 suspension, StopTech St-40 4-pot’s with 328x28mm 2 piece rotors. Front and rear sway bars, Cusco front subframe brace, SPT Strut tower brace, as well. Brembo’s with the KNS extended e-brake shoes to fit any 04 STi rotor.

Point is, the cars pretty much where I want it until the motor finally dies. I got 265k out of my first WRX, this is my second one.

I made the afore mentioned power on 22.2 pounds,a piece, Enkei Wheels.

Since then I’ve bought a set of Titan7 T-S5 Forged wheels and saved 15.6 pounds in rotational mass and.

My OEM VF is starting to smoke, she’s been good to me, but it’s time. I like the car the way it is, spirited, spools quick(to me), has enough power to please me for my daily. However if I replace the turbo, I don’t really want another used turbo. I want to maximize my spending by either making the car work easier to achieve the same, or be a little quicker in spool time, but I don’t think I’m overly interested in more power/torque, necessarily.

What specific 16g is the step above a VF48?
I do understand I can simply move to bigger injectors and a fuel pump and probably reach very close to 300, but I requested a not full out everything tune. I wanted longevity.

I shift at 5800-6k, I don’t redline the car, and wouldn’t really utilize power past 6250rpm. So, with all that being said, what turbo is going to keep me at the same power, maybe a tad more, on the 565 injectors, and spool quicker than my OEM VF48?
I had a vf23 which has the p20 hot side, when I went to a 16g eith the 7cm it spooled faster and gae a little more power but it seemed to fall off around 6ish. So if I were to do it all over again, I would get a 16 with a 10cm hotside it might make power a little later, I was making 5 lbs at like 2500, it should be able to push all the way to red line. or go to a 18g with a 8cm, either one should work well, and you should be over the 300 range on either turbo
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