Upgrading my impreza GT, what turbo?
20 October 2011, 12:10 AM
#5
BANNED
iTrader: (7)
Join Date: Jul 2010
Location: Melton Mowbray
Posts: 2,340
Likes: 0
Received 0 Likes
on
0 Posts
Boost controller is a massive no no mate.
Do your research, an MY99-00 requires an ECUtek map, this is the ONLY one available for a standard ecu. You can buy a simtek or apexi if you want standalone but it'll cost you a grand.
Bolt on your mods without mapping and you'll go bang very quicky.
Any of the VF range of turbo's will give you a decent spool up and power increase. VF23 is good for 300bhp, VF30 is a popular choice and the VF35 (which I have) is good for 340bhp.
You also want a 3 port boost solenoid with that set-up you have.
Do your research, an MY99-00 requires an ECUtek map, this is the ONLY one available for a standard ecu. You can buy a simtek or apexi if you want standalone but it'll cost you a grand.
Bolt on your mods without mapping and you'll go bang very quicky.
Any of the VF range of turbo's will give you a decent spool up and power increase. VF23 is good for 300bhp, VF30 is a popular choice and the VF35 (which I have) is good for 340bhp.
You also want a 3 port boost solenoid with that set-up you have.
20 October 2011, 06:04 AM
#7
They can be remapped, you just have to buy the licence for it. Contact Bob Rawle http://www.brdevelopments.com or any other recommended mapper for more info 
Trending Topics
20 October 2011, 09:03 AM
#8
Scooby Regular
iTrader: (16)
Join Date: Mar 2005
Location: Ljubljana,Slovenia
Posts: 1,574
Likes: 0
Received 0 Likes
on
0 Posts
I see on your plates that you are from Belgium so it seems you ahve little problem regarding Ecu mapper.
We (Slovenian dudes) arranged Bob Rawle to come to wisit to Slovenia 5 times till now and its well worth it
We (Slovenian dudes) arranged Bob Rawle to come to wisit to Slovenia 5 times till now and its well worth it
20 October 2011, 03:07 PM
#10
Scooby Regular
iTrader: (2)
Join Date: Jun 2010
Location: surrey
Posts: 1,710
Likes: 0
Received 0 Likes
on
0 Posts
very surprised to see how many people bolt on a manual boost controller and wind up the boost !! just get it mapped and tune by a pro and it will produce what the expert thinks is the correct amount of boost .
20 October 2011, 11:22 PM
#15
Scooby Regular
iTrader: (2)
Join Date: Jun 2010
Location: surrey
Posts: 1,710
Likes: 0
Received 0 Likes
on
0 Posts
i wouldnt worry about simtek personally . just pay for ecutek license which is about 650-700 quid and you can achieve 350bhp depending on your choice of turbo ?
22 October 2011, 09:54 AM
#18
Scooby Regular
iTrader: (3)
Join Date: Aug 2000
Location: 1600cc's of twin scroll fun :)
Posts: 25,565
Likes: 0
Received 2 Likes
on
2 Posts
TD05 20G is too big and too laggy, plus it would eat your engine 
so you have a few options, vf34 roller bearing turbo, vf30 sleeve bearing turbo (brother to the 34), vf35 sleeve bearing turbo or vf48 sleeve bearing turbo.
The last one being the most modern IHI turbo and is meant to be very good
You could then always jump on the ferry and pop over to the UK, book in with a mapper and have the car mapped
Tony
so you have a few options, vf34 roller bearing turbo, vf30 sleeve bearing turbo (brother to the 34), vf35 sleeve bearing turbo or vf48 sleeve bearing turbo.The last one being the most modern IHI turbo and is meant to be very good
You could then always jump on the ferry and pop over to the UK, book in with a mapper and have the car mapped
Tony
25 October 2011, 08:08 AM
#21
A ballbearing turbo uses ball bearings which tend to allow quicker spool up and require a lesser flow of oil to lubricate them.
Also that's not a bad price for the vf23 , when remapped with good supporting mods ,they can make way over 300bhp closer to 320. + imho
Thread
Thread Starter
Forum
Replies
Last Post
Scott@ScoobySpares
Full Cars Breaking For Spares
61
11 January 2021 03:08 PM
Scott@ScoobySpares
Full Cars Breaking For Spares
7
14 December 2015 08:16 AM
blockhead
Subaru Parts
19
07 November 2015 11:50 PM
