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Old 09-27-2013, 10:22 PM   #1
ygtrn
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Member#: 312868
Join Date: Mar 2012
Default turbo choice for 400hp

hi...
I have almost finished my setup in a few days, but i'm having reservations abou the turbo choice i've made for my setup...... my target hp 400 on crank (not whp) but the turbo is i want, should spoll up early as it's possible... i think the turbo which i need is 16g big billet, but i concerning about reaching 400hp...

the car is 99 sf5 forester..

specs....
fully forged engine....
+1 supertech ss valves
ported and polished heads, trottle, manifold
8.5 wiseco pistons
headers, uppipe
76mm downpipe and catback
ets 2008+ tmic + 10cm carbonfiber big scoop
cai
650cc injectors
walbro450 lbh
hks fuel pessure regulator
vi-pec plugin ecu

now im using vf22, but i want to change it because its very old turbo...
here is the link of the turbo i thik to buy...
http://www.ebay.com/itm/161104751079...84.m1423.l2648

i waiting for your suggestions....

thanks...
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Old 09-27-2013, 11:02 PM   #2
Shortpersonbk
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Member#: 319017
Join Date: May 2012
Chapter/Region: MWSOC
Location: Michigan
Vehicle:
12 slow sti 6266 e
595/450

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18g or 20g
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Old 09-27-2013, 11:15 PM   #3
R6_rider
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Join Date: Jan 2007
Chapter/Region: MWSOC
Location: Indianapolis
Vehicle:
2004 Stage 2 .:WRX:.
WRB

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never heard of arashi...

also what do you have for trans?
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Old 09-27-2013, 11:27 PM   #4
Red_Wrx
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Location: California
Default

Quote:
Originally Posted by Shortpersonbk View Post
18g or 20g
Yea if you wanna pull timing, depends on what you want to do. 400 with a small enough turbo. Or a big enough turbo for top speed and pwr? Gt30
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Old 09-27-2013, 11:45 PM   #5
2011WRXMT
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Location: Belgrade Montana
Vehicle:
2011 WRX Premium
Satin Pearl White

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One from a Cummins ISX LOL
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Old 09-28-2013, 04:10 AM   #6
ygtrn
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Default

Quote:
Originally Posted by R6_rider View Post
never heard of arashi...

also what do you have for trans?
stoc trans, but ill change it...
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Old 09-28-2013, 04:27 AM   #7
ygtrn
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Join Date: Mar 2012
Default

by the way the car is euro type forester, there would be diffrence about the cams...

i want a turbo which can catch the efficient point of the cams...

previously i was using td04 turbo and the acceleration was (0-100) 5.8 second and i take 270hp with it (@1.2 bar, my older specs was turbo, wrx cooler, oem ecu, exhaust)

later i changed only the turbo with the vf35, i loose that 5.8 sec and its decline to about 7sec and i take no more power @top ands @ same boost...

i want to say, if its possible i want a turbo which is spolling like td04 and give me abot 400hp.
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Old 09-28-2013, 04:53 AM   #8
Ihaveawagon
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Member#: 366807
Join Date: Aug 2013
Location: Northern Kentucky
Vehicle:
2002 WRX
WRB

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Quote:
Originally Posted by ygtrn View Post
by the way the car is euro type forester, there would be diffrence about the cams...

i want a turbo which can catch the efficient point of the cams...

previously i was using td04 turbo and the acceleration was (0-100) 5.8 second and i take 270hp with it (@1.2 bar, my older specs was turbo, wrx cooler, oem ecu, exhaust)

later i changed only the turbo with the vf35, i loose that 5.8 sec and its decline to about 7sec and i take no more power @top ands @ same boost...

i want to say, if its possible i want a turbo which is spolling like td04 and give me abot 400hp.
Took me a second to realize it was 100kmh.
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Old 09-28-2013, 05:37 AM   #9
ygtrn
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Join Date: Mar 2012
Default

yes its kmh

here is a video...

and here is the dyno... (td04, wrx cooler 1.2 bar)
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Old 09-28-2013, 05:39 PM   #10
jaxscuby
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Join Date: Sep 2001
Chapter/Region: South East
Location: S Ga / Hell Rock
Vehicle:
2002 USDM WRX
WRB

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400 chp with 5 speed is ~310 at the wheels with drivetrain loss.

i'm a that power with vf30 @ 18 psi with water / meth.

16g billet would get you there and probably spool faster than my vf30
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Old 09-30-2013, 07:40 PM   #11
dingobite
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Member#: 82391
Join Date: Mar 2005
Chapter/Region: MWSOC
Location: Lou. ky
Vehicle:
08 OBP Sti
stg2.... 279awhp, 299tq

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Dont buy the asrashi junk.


Check out the Steamspeed groupbuy thread or the one in built motor section.
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Old 09-30-2013, 07:42 PM   #12
dingobite
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Join Date: Mar 2005
Chapter/Region: MWSOC
Location: Lou. ky
Vehicle:
08 OBP Sti
stg2.... 279awhp, 299tq

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Does not ship to United States If anyone missed this part.

Quote:
Originally Posted by ygtrn View Post
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Old 10-02-2013, 10:09 AM   #13
ygtrn
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Join Date: Mar 2012
Default

one more question... is that turbo has billet comp wheel or not? there is no information about it...

http://www.bptstore.com/Subaru-WRXST...er-_p_126.html
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Old 10-02-2013, 10:11 AM   #14
ilovedemhotrides
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Default

Fp red or green
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