Correct turbo choice for 2.0
Hello everyone, I'm new to the forum and this is my first post, I own a 2.0 forged closed deck wrx sti, I am currently maxed on the vf35 and looking for an upgrade that will get me up towards 480. However due to the 2.0 there is obviously less torque and I'd want to keep it as quick spooling as possible, what turbos are people running/would people recommend? Thanks.
EJ20 + 480bhp = noticable lag. There's no other way around it.
Your best bet is to go rotated, as it helps with spool up. A roller-bearing, billet, GT30-based turbo would fit the bill, I reckon. Probably the GT3071R. You'd have to look into the possible exhaust port and compressor/housing sizes, to see what the smallest ones you can get away with, to achieve c.480bhp.
Your best bet is to go rotated, as it helps with spool up. A roller-bearing, billet, GT30-based turbo would fit the bill, I reckon. Probably the GT3071R. You'd have to look into the possible exhaust port and compressor/housing sizes, to see what the smallest ones you can get away with, to achieve c.480bhp.
Last edited by joz8968; Apr 25, 2018 at 09:14 PM.
For a straight bolt on for circa 480, I'd go with a precision turbo, but of course as said above you will get a bit of lag unless your in the correct gear.
Or lower your target and opt for a sc42, proper good turbo for circa 420-450
Or lower your target and opt for a sc42, proper good turbo for circa 420-450
Originally Posted by ossett2k2
How would an sc46 and go twin scroll for less lag go?
This is prob the 'easiest' route to take.
Thing is you won't get the benefit of AVCS heads in concert with the TS set up (unless he happens to have AVCS heads already fitted).
That said, all else being equal, a TS SC46 conversion will surely be less laggy than its SS counterpart (every little helps and all that jazz)...
Last edited by joz8968; Apr 26, 2018 at 03:32 AM.
Originally Posted by joz8968
EJ20 + 480bhp = noticable lag. There's no other way around it.
Your best bet is to go rotated, as it helps with spool up. A roller-bearing, billet, GT30-based turbo would fit the bill, I reckon. Probably the GT3071R. You'd have to look into the possible exhaust port and compressor/housing sizes, to see what the smallest ones you can get away with, to achieve c.480bhp.
Your best bet is to go rotated, as it helps with spool up. A roller-bearing, billet, GT30-based turbo would fit the bill, I reckon. Probably the GT3071R. You'd have to look into the possible exhaust port and compressor/housing sizes, to see what the smallest ones you can get away with, to achieve c.480bhp.
OP, here you go!
https://www.scoobynet.com/subaru-par...tated-kit.html
Can you believe it lol
Thread
Thread Starter
Forum
Replies
Last Post
B.I.G SCOOB
General Technical
2
Jul 17, 2005 07:54 PM
Trebor69
Drivetrain
7
Dec 22, 2003 02:12 PM
Rallyrcr
Drivetrain
12
Aug 9, 2001 11:59 PM




