Twin-Turbos?
#1
Registered User
Thread Starter
Join Date: Jan 2009
Location: Bismarck ND
Posts: 44
Car Info: 2006 Subaru Impreza 2.5i
Twin-Turbos?
Has anyone ever heard of a twin turbo setup for subarus?
I'm building a N/A setup but I'm just curious whats out there in case I want more power than the N/A.
I'm building a N/A setup but I'm just curious whats out there in case I want more power than the N/A.
#2
http://en.wikipedia.org/wiki/Subaru_Legacy
The twin-turbo setups were sequential turbos; only one was active at a time, rather than both at once. The point was a broader powerband, not more power overall.
#3
Registered User
Thread Starter
Join Date: Jan 2009
Location: Bismarck ND
Posts: 44
Car Info: 2006 Subaru Impreza 2.5i
I'm sure these models were interesting to drive but I'm curious if somebody is thinking of going twin turbos? Two small turbos running non-sequential, one turbo per bank of pistons, should spool quicker than one turbo connected further down the exhaust system. I think the single turbo would be easier to tune but who wants EASY? Am I just crazy or would this work?
#7
Registered User
iTrader: (19)
Join Date: Aug 2006
Location: Campbell
Posts: 1,475
Car Info: AW Pig-STI
someone correct me if i'm wrong, but I thought having one turbo per bank of cylinder head wouldn't work well. i believe it was due to the firing order and pulses, e.g. each of the turbos would need a pulse from each head for it to match the firing order.
in other words, a really really long set of manifolds leading up to the turbos.
of course, maybe i just don't know what it is the **** i'm talking about.
....just looked, guess it would require something like this:
in other words, a really really long set of manifolds leading up to the turbos.
of course, maybe i just don't know what it is the **** i'm talking about.
....just looked, guess it would require something like this:
#8
scc said it best. the time that toyota spent making a complicated twin turbo valve system with low and high end response was rendered moot by new advances in single turbo technology. the money you spend on that system can go towards a really good manifold and single turbo. the latest twin-scroll ball bearing turbos spool up fast enough for just about any application short of all out drag racing.
Thread
Thread Starter
Forum
Replies
Last Post
Dinko81
Used Aftermarket Car Parts For Sale
4
06-25-2004 10:58 AM
DaWorstPlaya
Aftermarket Forced Induction - Turboed factory NA engines
4
05-10-2004 06:51 PM
Subie_fast
Aftermarket Forced Induction - Turboed factory NA engines
1
06-14-2003 04:00 AM
singsing
Engine/Power - EJ20T (pre-2006 WRX and JDM)
6
05-24-2003 03:19 AM