mods for a uk turbo
14 March 2010, 08:50 PM
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mods for a uk turbo
Im wanting to start gaining bhp !!! the car is near enough standard apart from cat back magnex system and forge dump valve !!! What mods should i be looking at ??
14 March 2010, 09:03 PM
#3
Be careful matey. These cars DO NOT appreciate induction kits unless you are running MAF-less, and you get better results, and a safer engine, using a decent panel filter. Ditch the dumpvalve, which adds nothing except an annoying noise, and can destroy your engine, go back to a standard recirc type. Your engine will love you and will run better too.
Look at a full decat if you can sort the MoT, many refit the original at MoT time
Depending on what model you have and what year, a remap is not easy and in at least one model, not possible AT ALL without an aftermarket ecu.
Why not think about the brakes? What does it have now? If it's pre-99 it will have 2-pots at the front, get some 4 pots and discs, or one of Godspeeds kits and some 4-pots and BIGGER discs for better stopping power. Then fit Whiteline droplinks all round, a 22mm rear arb and have the geometry set up. It won't be any more powerful, but you'll go quicker point to point
Look at a full decat if you can sort the MoT, many refit the original at MoT time
Depending on what model you have and what year, a remap is not easy and in at least one model, not possible AT ALL without an aftermarket ecu.
Why not think about the brakes? What does it have now? If it's pre-99 it will have 2-pots at the front, get some 4 pots and discs, or one of Godspeeds kits and some 4-pots and BIGGER discs for better stopping power. Then fit Whiteline droplinks all round, a 22mm rear arb and have the geometry set up. It won't be any more powerful, but you'll go quicker point to point
14 March 2010, 09:08 PM
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Be careful matey. These cars DO NOT appreciate induction kits unless you are running MAF-less, and you get better results, and a safer engine, using a decent panel filter. Ditch the dumpvalve, which adds nothing except an annoying noise, and can destroy your engine, go back to a standard recirc type. Your engine will love you and will run better too.
Look at a full decat if you can sort the MoT, many refit the original at MoT time
Depending on what model you have and what year, a remap is not easy and in at least one model, not possible AT ALL without an aftermarket ecu.
Why not think about the brakes? What does it have now? If it's pre-99 it will have 2-pots at the front, get some 4 pots and discs, or one of Godspeeds kits and some 4-pots and BIGGER discs for better stopping power. Then fit Whiteline droplinks all round, a 22mm rear arb and have the geometry set up. It won't be any more powerful, but you'll go quicker point to point
Look at a full decat if you can sort the MoT, many refit the original at MoT time
Depending on what model you have and what year, a remap is not easy and in at least one model, not possible AT ALL without an aftermarket ecu.
Why not think about the brakes? What does it have now? If it's pre-99 it will have 2-pots at the front, get some 4 pots and discs, or one of Godspeeds kits and some 4-pots and BIGGER discs for better stopping power. Then fit Whiteline droplinks all round, a 22mm rear arb and have the geometry set up. It won't be any more powerful, but you'll go quicker point to point
its a 99 t plate matey, already decided im gonna go down the panel filter route, Already got 4pots matey and fummily enough just fitted godspeed kevlar pads
15 March 2010, 12:48 PM
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MY00 uk, engine wise H&S decat downpipe with integral splitter, prodrive back box std center cat passes mot every time. silcone hose set for the intercooler and a tek 3 by bob rawle 282 bhp 336 ft lbs still with the td04. Get back to a proper recirc dumpvalve.
Set of godspeed 335 discs up front plus goodridge hose set, eibach springs.
And a set of P1 17" alloys
Does for me
Set of godspeed 335 discs up front plus goodridge hose set, eibach springs.
And a set of P1 17" alloys
Does for me
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15 March 2010, 04:38 PM
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i also own a my99 t reg uk turbo and have basic mods so far eg panel filter de cat sti intercooler and forge dump valve and have found it breathes a lot better giving it better performance for not a lot of cash. i dont know what everyone has against dump valves i,ve owned 2 impreza turbos both with dv,s and have had no issues whatsoever with them. saving for a remap next to make the most of the mods so far. im only going for around 300bhp as in my opinion its a nice but safe power figure to run on this model.
15 March 2010, 06:01 PM
#10
Don't forget a uprated fuel pump like Walbro or a JDM V5/6 STI/WRX Classic pump can be had cheaper when people ditch them. As said already, brakes and suspension will make you quicker point to point straight away. A re-map will be a real eye opener.
Your pushing the gearbox/clutch on a UK Classic beyond 280ish BHP.
Agree with the ditching of the chav valve too.
Your pushing the gearbox/clutch on a UK Classic beyond 280ish BHP.
Agree with the ditching of the chav valve too.
15 March 2010, 06:45 PM
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i also own a my99 t reg uk turbo and have basic mods so far eg panel filter de cat sti intercooler and forge dump valve and have found it breathes a lot better giving it better performance for not a lot of cash. i dont know what everyone has against dump valves i,ve owned 2 impreza turbos both with dv,s and have had no issues whatsoever with them. saving for a remap next to make the most of the mods so far. im only going for around 300bhp as in my opinion its a nice but safe power figure to run on this model.
15 March 2010, 06:51 PM
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The gearbox on the 99/00 uk cars is alot stronger than previous models and can cope with over 300bhp, it all depends how you drive it. If your gonna do qtr mile starts all the time then yes your gearbox will break in no time.
If I were spending on a Uk car then I would buy....
VF35 turbo
Newage STi TMIC
Full decat exhaust
Ported headers and uppipe
Green panel filter
Fuel pressure regulator
Walbro fuel pump
Ecutek remap
Should see upto 340bhp with the above mods, most of which can be had second hand off this forum.
If I were spending on a Uk car then I would buy....
VF35 turbo
Newage STi TMIC
Full decat exhaust
Ported headers and uppipe
Green panel filter
Fuel pressure regulator
Walbro fuel pump
Ecutek remap
Should see upto 340bhp with the above mods, most of which can be had second hand off this forum.
Last edited by Marx Mcrae; 15 March 2010 at 06:55 PM.
15 March 2010, 06:59 PM
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As Alcazar has said, you would be wise to sort your suspension too.
Eibach are probably the best lowering springs you can put on an impreza, together with Whiteline droplinks, anti lift kit and a 22mm anti roll bar.
Would be a very quick road car!!
Eibach are probably the best lowering springs you can put on an impreza, together with Whiteline droplinks, anti lift kit and a 22mm anti roll bar.
Would be a very quick road car!!
15 March 2010, 07:04 PM
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The most pertinent question here is how much do you want to spend.
If less than 2k. Get a sports cat DP and centre section, decent panel filter, uprated fuel pump and Simtek ECU.
Two reasons for going for Simtek over an Ecutek remap:
1) You loose the maf, which is a potential engine killer on the MY99
2) The Simtek is a much better solution in terms of driveability than Ecutek remap on a classic, not least because with simtek you get in gear boost control and loose the s*itty emissions related boost cut nonsense that can't be mapped out of the standard ECU. You'll get a better map all around.
If you don't want to start spending heaps, leave it there - it'll be a nice car for not too much wogna! Beyond that it gets expensive to do properly. Been there, done that!
My car's spec:
VF35 turbo
Uprated hoses
Hybrid FMIC - better idea than a TMIC on a classic
Dump valve delete
Ninja Sports decat exhaust DP, Haywood and Scott centre pipe and backbox
Ported headers
Walbro fuel pump
550cc injectors
Simtek ECU
Transmission Std, but uprated Exedy organic clutch. Std one won't last at that level. Also be aware that gearbox longevity not assured at this level
Suspension: Eibach coilovers
Wheels: 17 inch Oz Ultraleggeras
Brakes: AP six pots
Car is now "complete" (and that's what you want) at this level, but it wasn't cheap!
If people apprach me asking for ways to improve performance on a budget, I always say: stop at stage one. Everything else about the car is comfortable at that level; go beyond that and you have to start thinking more extensive mods to do things properly
If less than 2k. Get a sports cat DP and centre section, decent panel filter, uprated fuel pump and Simtek ECU.
Two reasons for going for Simtek over an Ecutek remap:
1) You loose the maf, which is a potential engine killer on the MY99
2) The Simtek is a much better solution in terms of driveability than Ecutek remap on a classic, not least because with simtek you get in gear boost control and loose the s*itty emissions related boost cut nonsense that can't be mapped out of the standard ECU. You'll get a better map all around.
If you don't want to start spending heaps, leave it there - it'll be a nice car for not too much wogna! Beyond that it gets expensive to do properly. Been there, done that!
My car's spec:
VF35 turbo
Uprated hoses
Hybrid FMIC - better idea than a TMIC on a classic
Dump valve delete
Ninja Sports decat exhaust DP, Haywood and Scott centre pipe and backbox
Ported headers
Walbro fuel pump
550cc injectors
Simtek ECU
Transmission Std, but uprated Exedy organic clutch. Std one won't last at that level. Also be aware that gearbox longevity not assured at this level
Suspension: Eibach coilovers
Wheels: 17 inch Oz Ultraleggeras
Brakes: AP six pots
Car is now "complete" (and that's what you want) at this level, but it wasn't cheap!
If people apprach me asking for ways to improve performance on a budget, I always say: stop at stage one. Everything else about the car is comfortable at that level; go beyond that and you have to start thinking more extensive mods to do things properly
Last edited by New_scooby_04; 15 March 2010 at 07:15 PM.
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