sequential turbo? is it possible?
@Stoptech
iTrader: (5)
Joined: Nov 2002
Posts: 2,416
From: San Francisco, CA
Car Info: 2002 WRX Wagon
and by sequential turbo, do you mean one smaller turbo for torque on two cylinders and a larger one for top end on the other two? or are you just talking about twin turbos? either of which would require extensive (read $$$) fabrication and expertise. and tuning... u get the picture.
Guest
Posts: n/a
There is a two sequential turbo EJ20, but I think it doesn't fit with LHD.
There was a company that made a twin turbo upgrade for the RS before the WRX was out, but this was not sequential, but parallel.
As far as being worth it, that depends on what you want. Sequential turbos are generally plagued by the problem of a giant torque/power dip when you switch to the big turbo.
A swap to a larger displacement will give a lot more torque down low than the 2.0, while maintaining the power up top, and no torque valley of death. Also, it would probably be cheaper in the long run too.
There was a company that made a twin turbo upgrade for the RS before the WRX was out, but this was not sequential, but parallel.
As far as being worth it, that depends on what you want. Sequential turbos are generally plagued by the problem of a giant torque/power dip when you switch to the big turbo.
A swap to a larger displacement will give a lot more torque down low than the 2.0, while maintaining the power up top, and no torque valley of death. Also, it would probably be cheaper in the long run too.
Last edited by Concillian; May 11, 2003 at 12:39 PM.
Former Sponsor
iTrader: (18)
Joined: Nov 2002
Posts: 4,331
From: BAIC Wagon/Sedan Clique
Car Info: a few WRX's and a Z ;)
i researched this when i first got my car.
i ended up with:
you gain too little for all the $$ and trouble. might aswell port the bad boy get more agressive cams...
but hey! if you are gonna spend the $$ making the kit... let me know... so i can copy it!
SD
i ended up with:
you gain too little for all the $$ and trouble. might aswell port the bad boy get more agressive cams...
but hey! if you are gonna spend the $$ making the kit... let me know... so i can copy it!

SD
Registered User
iTrader: (26)
Joined: Nov 2002
Posts: 1,959
From: Gilroy, CA
Car Info: 2017 WRB WRX Premium
Info on Subaru twin turbo setup:
http://www.clubwrx.net/forums/showth...quential+turbo
and this:
http://www.forcedairtech.com/FORCED-...TAGE4-KIT.html
Kurlee Daddee
(THE ORIGINAL)
http://www.clubwrx.net/forums/showth...quential+turbo
and this:
http://www.forcedairtech.com/FORCED-...TAGE4-KIT.html
Kurlee Daddee
(THE ORIGINAL)
Guest
Posts: n/a
personally .. i dont think.. it should do too much good with these twin turbo upgrade.. just like suby_dude said.. too much money for not too much gain..
that's why so many supra / rx7 guys switch their twin turbo system into big single turbo. cheaper / better maintance / good HP gain
that's why so many supra / rx7 guys switch their twin turbo system into big single turbo. cheaper / better maintance / good HP gain
Originally posted by KurleeDaddeeWRX
http://www.forcedairtech.com/FORCED-...TAGE4-KIT.html
Kurlee Daddee
(THE ORIGINAL)
http://www.forcedairtech.com/FORCED-...TAGE4-KIT.html
Kurlee Daddee
(THE ORIGINAL)
Man, i've been eyeing the thing for like a year now... It's looks like it would work really well on a 2.5L
-Gagan
Registered User
iTrader: (12)
Joined: Nov 2002
Posts: 18,369
From: Reno, NV
Car Info: 1993/2000/2001 GF4 mostly red
Originally posted by joltdudeuc
Man, i've been eyeing the thing for like a year now... It's looks like it would work really well on a 2.5L
-Gagan
Man, i've been eyeing the thing for like a year now... It's looks like it would work really well on a 2.5L
-Gagan
Last edited by Kevin M; May 17, 2003 at 02:00 PM.
@Stoptech
iTrader: (5)
Joined: Nov 2002
Posts: 2,416
From: San Francisco, CA
Car Info: 2002 WRX Wagon
Originally posted by jiveturkey
thanks for all the help guys...
i guess upgrading to a bigger turbo would be best.
yo.... what should i go with!
thanks again!
thanks for all the help guys...
i guess upgrading to a bigger turbo would be best.
yo.... what should i go with!
thanks again!
if you want a viper killer, look into the PE1820, APS SR50, AVO 500 HP turbo, or some custom garrett GT setup with a large FMIC, a 6MT, a 3" exhaust, and so on and so forth. but by then, you'll need bigger brakes, wheels, tires, suspension, and about 8 million other things. good luck.
Guest
Posts: n/a
steppin razor.....
wow thanks for all that.
but i've just finished my nsx wich took 5 months to complete what i wanted.
wich included a $8,000 super charger. $3,000 rims, etc.
so right now my wallet is pretty shy.
not really wanna spend to much on the impreza cuz its pretty much my daily driver. i just want to have a lil go with my show!
thanks again guys..... and where are the closest meets in the city, don't really feel like driven an hour to the other ones.
jiveturqeez crew.
wow thanks for all that.
but i've just finished my nsx wich took 5 months to complete what i wanted.
wich included a $8,000 super charger. $3,000 rims, etc.
so right now my wallet is pretty shy.
not really wanna spend to much on the impreza cuz its pretty much my daily driver. i just want to have a lil go with my show!
thanks again guys..... and where are the closest meets in the city, don't really feel like driven an hour to the other ones.
jiveturqeez crew.
Thread
Thread Starter
Forum
Replies
Last Post
omygata
Engine/Power - EJ20T (pre-2006 WRX and JDM)
3
Nov 25, 2005 11:09 PM
MauiJammer
Aftermarket Forced Induction - Turboed factory NA engines
13
Oct 14, 2003 05:07 AM




