Turbo upgrade
26 October 2016 | 10:40 PM
#2
Car model? UK Turbo 2000? WRX? STi?
Also, 1998 covers MY98 or MY99. Do you know what it is? Post up the applied model code, and we'll let you know.
What size compressor wheel? 16g? 18g? 20g?
This is relevant, as the higher the number, the larger the wheel = more air pushed through the engine (for any given amount of time).
16g flows between c.330-350bhp
18g flows between c.350-380bhp
20g flows between c.360-400bhp
The size of turbo will dictate your minimum (best matched) injectors size, see. That said, an upgrade to 550cc yellows should cover all bases, anyway (good for c.380-420bhp).
Answer this turbo question - or at least your bhp goal - before going further.
Also, 1998 covers MY98 or MY99. Do you know what it is? Post up the applied model code, and we'll let you know.
What size compressor wheel? 16g? 18g? 20g?
This is relevant, as the higher the number, the larger the wheel = more air pushed through the engine (for any given amount of time).
16g flows between c.330-350bhp
18g flows between c.350-380bhp
20g flows between c.360-400bhp
The size of turbo will dictate your minimum (best matched) injectors size, see. That said, an upgrade to 550cc yellows should cover all bases, anyway (good for c.380-420bhp).
Answer this turbo question - or at least your bhp goal - before going further.
Last edited by joz8968; 26 October 2016 at 11:08 PM.
26 October 2016 | 11:32 PM
#3
Car model? UK Turbo 2000? WRX? STi?
Also, 1998 covers MY98 or MY99. Do you know what it is? Post up the applied model code, and we'll let you know.
What size compressor wheel? 16g? 18g? 20g?
This is relevant, as the higher the number, the larger the wheel = more air pushed through the engine (for any given amount of time).
16g flows between c.330-350bhp
18g flows between c.350-380bhp
20g flows between c.360-400bhp
The size of turbo will dictate your minimum (best matched) injectors size, see. That said, an upgrade to 550cc yellows should cover all bases, anyway (good for c.380-420bhp).
Answer this turbo question - or at least your bhp goal - before going further.
Also, 1998 covers MY98 or MY99. Do you know what it is? Post up the applied model code, and we'll let you know.
What size compressor wheel? 16g? 18g? 20g?
This is relevant, as the higher the number, the larger the wheel = more air pushed through the engine (for any given amount of time).
16g flows between c.330-350bhp
18g flows between c.350-380bhp
20g flows between c.360-400bhp
The size of turbo will dictate your minimum (best matched) injectors size, see. That said, an upgrade to 550cc yellows should cover all bases, anyway (good for c.380-420bhp).
Answer this turbo question - or at least your bhp goal - before going further.
What about a 25g
27 October 2016 | 01:35 AM
#5
so ill let you know how I get on 
Trending Topics
28 October 2016 | 09:15 PM
#8
Depends.
If its an OEM 16g (as fitted to the early MY93-96 cars) then the compressor housing has a top-entry inlet. So it won't readily mate up with your year's intake hose. You can get the cover converted to front-entry... Or get a replacement front-entry cover from Andy Forrest.
If it's an aftermarket 16g, 18g or 20g, then these are usually sold with the front-entry comp. housings, so will indeed be a direct fit.
If its an OEM 16g (as fitted to the early MY93-96 cars) then the compressor housing has a top-entry inlet. So it won't readily mate up with your year's intake hose. You can get the cover converted to front-entry... Or get a replacement front-entry cover from Andy Forrest.
If it's an aftermarket 16g, 18g or 20g, then these are usually sold with the front-entry comp. housings, so will indeed be a direct fit.
Last edited by joz8968; 29 October 2016 at 10:26 AM.
30 October 2016 | 01:16 PM
#11
Scooby Regular
Joined: Jul 2011
Posts: 2,514
Likes: 1
From: harlow
Get a brand new eBay 20g for about £125 delivered. Make sore you get one from a uk dealer to avoid import tax and long delivery.
Works for me on my blob WRX 12.32 second 1/4 mile at 112mph.
Happy boosting
Works for me on my blob WRX 12.32 second 1/4 mile at 112mph.
Happy boosting
30 October 2016 | 01:28 PM
#13
Originally Posted by jaygsi
Ideally i would stick to TD05 16g for a standard engine, you will need an uprated fuel pump, 440 injectors, uprated panel filter and a remap.
I agree.
Esp. as it's a UK car - with effectively a WRX spec engine i.e. no forged pistions.
Last edited by joz8968; 30 October 2016 at 01:29 PM.
30 October 2016 | 01:32 PM
#14
...Obviously, you'll also have to get ESL Live, as your most cost-effective way to map the car. Or there's Simtek or Alcatek (or possibly A'PEXi PFC!). Then there's Syvecs, too
* Actually OP, being 1998 could mean MY98 OR MY99. (MY99 allows you to get into the OEM ECU for mapping via ECUTek - without a replacement board. Plus, it'll already have the 440s. Which is nice.)
Post up your applied model code and photos of the engine bay and the front of the car...
* Actually OP, being 1998 could mean MY98 OR MY99. (MY99 allows you to get into the OEM ECU for mapping via ECUTek - without a replacement board. Plus, it'll already have the 440s. Which is nice.)
Post up your applied model code and photos of the engine bay and the front of the car...
Last edited by joz8968; 30 October 2016 at 08:55 PM.
30 October 2016 | 06:27 PM
#19
Yep. You have a UK MY98, so grey 380cc injectors -- only flow enough for up to about 310 flywheel bhp. And that's if you're lucky! More likely to be 270-290, on average.
The applied model code's 4th "F" character for a UKDM car denotes a MY98 (but for a JDM, it is an "E" -- yes, weird, I know).
To confirm, post photos of front bumper and top of engine....
The applied model code's 4th "F" character for a UKDM car denotes a MY98 (but for a JDM, it is an "E" -- yes, weird, I know).
To confirm, post photos of front bumper and top of engine....
Last edited by joz8968; 30 October 2016 at 06:33 PM.
30 October 2016 | 06:42 PM
#21
You need the MY97/98 yellow versions, from a JDM car.
The MY99/00 ones are slightly different (shorter pintle and differently positioned seals), and won't fit into the MY98's rails. Unless you buy an adapter kit.
The MY99/00 ones are slightly different (shorter pintle and differently positioned seals), and won't fit into the MY98's rails. Unless you buy an adapter kit.
Last edited by joz8968; 30 October 2016 at 06:46 PM.
30 October 2016 | 06:57 PM
#23
Yes, either.
FYI, the "Version" nomenclature was marketed only for the Classic STi variants, only.
Hence the "MY--" is better, as it's a catch-all term.
That said, obviously, we still know what you mean by using "Version..."
FYI, the "Version" nomenclature was marketed only for the Classic STi variants, only.
Hence the "MY--" is better, as it's a catch-all term.
That said, obviously, we still know what you mean by using "Version..."
Last edited by joz8968; 30 October 2016 at 07:03 PM.
30 October 2016 | 07:16 PM
#27
Right - a list of all the Classic equivalents colloquialisms:
Phase 1
MY93-95 - "Version" (1)
MY96 - "Version II" (2)
Phase 1.5
MY97 - "Version III" (3)
MY98 - "Version IV" (4)
Phase 2
MY99 - "Version V" (5)
MY00 - "Version VI" (6)
Phase 1
MY93-95 - "Version" (1)
MY96 - "Version II" (2)
Phase 1.5
MY97 - "Version III" (3)
MY98 - "Version IV" (4)
Phase 2
MY99 - "Version V" (5)
MY00 - "Version VI" (6)
Last edited by joz8968; 30 October 2016 at 07:23 PM.
30 October 2016 | 07:42 PM
#28
Scooby Regular
Joined: Jul 2011
Posts: 2,514
Likes: 1
From: harlow
Na, don't be so naive about the Chinese stuff, everything is made there these days. Garrett and holset both have factories there.
Every Chinese turbo I have ever bought has performed faultlessly.
I don't know why people still have the fear/uncertainty over them.
My car must be in the region of 380hp
Every Chinese turbo I have ever bought has performed faultlessly.
I don't know why people still have the fear/uncertainty over them.
My car must be in the region of 380hp