twin turbo to single turbo conversion (legacy twin turbo b4)
05-19-2003, 06:29 AM
#1
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Join Date: May 2003
Location: Perth, Western Australia
Posts: 4
twin turbo to single turbo conversion (legacy twin turbo b4)
has anyone done a twin turbo to single turbo conversion (legacy twin turbo B4)?
i hear this is a very popular thing to do in japan!
at any rate... the reason im asking is coz im in the process of doing it..
i have had massive headache getting anyone to tune the B4 properly (my03)... and pple basically talk **** to me showing me their total ignorance as to how the twin setup works... (im in perth, australia)
anyway....
im gonna drop the twin setup for a single turbo... the IHI vf34 which i have sitting next to me at the moment...
my questions relate to.... how different (or similar) is the ej20 in the b4 as compared to those in the standard WRX and STi... from what i can garner from the web... the liberty/legacy ej20 seems somewhere in between the standard WRX and STi... i.e. forged pistons but no variable cams... compression is 9:1 as compared with 8:1 in STI but 9:1 in standard WRX. etc... does anyone know of any other differences etc.. that may affect my conversion to a powerful single turbo???
other practical things... will my01/02 STI exhaust manifold bolt on to this ej20? my mate is gonna give me his when he upgrades to fujitsubo...
exhaust dump pipe will have to be refashioned... no forseeable problem here...
will tune with aftermarket ECU... a motec...
toying with the idea of ANTILAG!! havent 100% decided on that yet though...
any input will be much appreciated...
i hear this is a very popular thing to do in japan!
at any rate... the reason im asking is coz im in the process of doing it..
i have had massive headache getting anyone to tune the B4 properly (my03)... and pple basically talk **** to me showing me their total ignorance as to how the twin setup works... (im in perth, australia)
anyway....
im gonna drop the twin setup for a single turbo... the IHI vf34 which i have sitting next to me at the moment...
my questions relate to.... how different (or similar) is the ej20 in the b4 as compared to those in the standard WRX and STi... from what i can garner from the web... the liberty/legacy ej20 seems somewhere in between the standard WRX and STi... i.e. forged pistons but no variable cams... compression is 9:1 as compared with 8:1 in STI but 9:1 in standard WRX. etc... does anyone know of any other differences etc.. that may affect my conversion to a powerful single turbo???
other practical things... will my01/02 STI exhaust manifold bolt on to this ej20? my mate is gonna give me his when he upgrades to fujitsubo...
exhaust dump pipe will have to be refashioned... no forseeable problem here...
will tune with aftermarket ECU... a motec...
toying with the idea of ANTILAG!! havent 100% decided on that yet though...
any input will be much appreciated...
05-20-2003, 09:21 PM
#3
Guest
Posts: n/a
hi Singsing, How is it down under?
What is the tuning problem your having with the twin turbo set up? Boost control? If not please explain the particular area in tuning your having a problem with.
I would love to play with a TT Subaru, but there not available over here in the USA.
Nick
What is the tuning problem your having with the twin turbo set up? Boost control? If not please explain the particular area in tuning your having a problem with.
I would love to play with a TT Subaru, but there not available over here in the USA.
Nick
05-21-2003, 04:03 PM
#4
Guest
Posts: n/a
People here in So Cal regularly use the TT block in sandrail applications I would tell you to call a place like www.outbackmotorsports.com they may be able to help you.
05-23-2003, 10:04 PM
#5
If you have MOTEC, it's a piece of cake
Just hook up WRX headers, VF34, WRX IC, WRX IC pipe, WRX downpipe, WRX exhaust.
Then wire the MOTEC up and get it tuned.
Getting the car running in stock ECU is another story though, it'll be a major headache.
Just hook up WRX headers, VF34, WRX IC, WRX IC pipe, WRX downpipe, WRX exhaust.
Then wire the MOTEC up and get it tuned.
Getting the car running in stock ECU is another story though, it'll be a major headache.
05-24-2003, 03:14 AM
#6
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Thread Starter
Join Date: May 2003
Location: Perth, Western Australia
Posts: 4
heh heh...
havent checked in a while...
thanks for the info...
i was just planning what you said... motec m800 + all the other stuff you said
will let ya know how it goes...
havent checked in a while...
thanks for the info...
i was just planning what you said... motec m800 + all the other stuff you said
will let ya know how it goes...
Originally posted by go go go
If you have MOTEC, it's a piece of cake
Just hook up WRX headers, VF34, WRX IC, WRX IC pipe, WRX downpipe, WRX exhaust.
Then wire the MOTEC up and get it tuned.
Getting the car running in stock ECU is another story though, it'll be a major headache.
If you have MOTEC, it's a piece of cake
Just hook up WRX headers, VF34, WRX IC, WRX IC pipe, WRX downpipe, WRX exhaust.
Then wire the MOTEC up and get it tuned.
Getting the car running in stock ECU is another story though, it'll be a major headache.
05-24-2003, 03:19 AM
#7
Registered User
Thread Starter
Join Date: May 2003
Location: Perth, Western Australia
Posts: 4
Originally posted by TurboPorsche
You wouldn't have a wiring diagram for that engine by chance do ya. Because i really need one desperatly. Any help would be appreciated.
You wouldn't have a wiring diagram for that engine by chance do ya. Because i really need one desperatly. Any help would be appreciated.
i ahve the manual in pdf form (30+megs)
this is for the aus spec liberrty (legacy) TT
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