Wrx 03 vs Sti 03
15 July 2008, 03:23 PM
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Wrx 03 vs Sti 03
I have never driven an Sti and just wondered how the power delivery would vary to my Wrx.
My wrx has full boost from approx 3000-6500 with an Andy F TD04 hybrid.
Does an sti have full boost from say 4000-7500? Is the only reason for this that it has a bigger turbo on the sti? Or is there another reason.
I know they have different brakes, suspension, forged bits and pinks, 6 speed stronger box etc... Just wondered from people who have the sti about the overal driveable at low revs.
My wrx has full boost from approx 3000-6500 with an Andy F TD04 hybrid.
Does an sti have full boost from say 4000-7500? Is the only reason for this that it has a bigger turbo on the sti? Or is there another reason.
I know they have different brakes, suspension, forged bits and pinks, 6 speed stronger box etc... Just wondered from people who have the sti about the overal driveable at low revs.
15 July 2008, 03:28 PM
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Standard, the power was quite late, nothing...nothing....bang! About 4000-4500.
Remapped on standard turbo and it was much earlier, harder and for a while longer, albeit not redline. I can't remember, but it was about 2500-3000rpm.
Remapped on standard turbo and it was much earlier, harder and for a while longer, albeit not redline. I can't remember, but it was about 2500-3000rpm.
15 July 2008, 03:53 PM
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Thanks for the responses. 
So all in all if mapped the sti has a better boost range than the wrx. Why does the sti redline at 8,000 and the wrx 7,000?
So all in all if mapped the sti has a better boost range than the wrx. Why does the sti redline at 8,000 and the wrx 7,000?
15 July 2008, 04:13 PM
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Yeh JDM's redline at 8k because of the stronger internals and components.
My wrx kicked in at 3k and so did my sti, there is a big difference though. Much more pronounced and punchy.
My wrx kicked in at 3k and so did my sti, there is a big difference though. Much more pronounced and punchy.
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15 July 2008, 04:16 PM
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15 July 2008, 04:18 PM
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15 July 2008, 09:27 PM
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15 July 2008, 10:45 PM
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As for real world driving..............
After my 03STI was remapped to 340 bhp it was noticeably quicker than a standard 2.0 WRX and a 2.5 WRX although I had to drive it to the limit to see the differences. Up to say 100mph I has gained around 10 car lengths.
I thought it would have been more of a gap tbh.
After my 03STI was remapped to 340 bhp it was noticeably quicker than a standard 2.0 WRX and a 2.5 WRX although I had to drive it to the limit to see the differences. Up to say 100mph I has gained around 10 car lengths.
I thought it would have been more of a gap tbh.
15 July 2008, 11:21 PM
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15 July 2008, 11:34 PM
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Halfway down page to explains it...
Eta Tauri Site Impreza Reference - Road Cars MY2002 STi Euro
The article should also answer the original question in this post even though it is about the bugeye STi.
Cheers,
Doug
Eta Tauri Site Impreza Reference - Road Cars MY2002 STi Euro
The article should also answer the original question in this post even though it is about the bugeye STi.
Cheers,
Doug
16 July 2008, 09:16 AM
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It was down to emissions mainly, the JDM and UK STi (JDM MY01-02 cars) had pretty much the same engine, internals etc, due to the extra strength over the WRX engines they could rev higher.
But the STi will feel stronger because of the extra torque it has, and closer ratio gearbox
Tony
But the STi will feel stronger because of the extra torque it has, and closer ratio gearbox
Tony
16 July 2008, 01:06 PM
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I remember driving an 03 WRX and 03 STi back to back and being very surprised at the difference between the two. Certainly the power delivery makes it seem like there is a lot more than 50 odd bhp separating them!
If you want a proper turbo kick, you need the STi really, or a WRX with a bigger turbo and supporting mods!
Ns04
If you want a proper turbo kick, you need the STi really, or a WRX with a bigger turbo and supporting mods!
Ns04
16 July 2008, 06:53 PM
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A few weeks ago I got a JDM V8 Blobeye STi and so far performance wise I have done: De-cat, Exhause system, ram air filter, NGK pluge. What sort of power did it start with and what can I expect from a remap on it? And what turbo will I have in there?
Last edited by coops1; 16 July 2008 at 07:01 PM.
16 July 2008, 06:57 PM
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I remember driving an 03 WRX and 03 STi back to back and being very surprised at the difference between the two. Certainly the power delivery makes it seem like there is a lot more than 50 odd bhp separating them!
If you want a proper turbo kick, you need the STi really, or a WRX with a bigger turbo and supporting mods!
Ns04
If you want a proper turbo kick, you need the STi really, or a WRX with a bigger turbo and supporting mods!
Ns04
Last edited by Midnight Runner; 16 July 2008 at 07:00 PM.
17 July 2008, 04:50 PM
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a JDM sti has around 280ps I think compared to the sti uk's 265ps....full decat and then re-map......ooohhh...erm...pushing near 340bhp I would say...probably....
17 July 2008, 05:05 PM
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(waits for rather large engine rebuild cost!)Also when you say a V8 STI you mean a 2002 car? as that would have been a V8, but as there are no V8 STi's im guessing
Tony
17 July 2008, 06:26 PM
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18 July 2008, 09:09 AM
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Nope it wouldnt, thats the point, an STI7 would be a 2001 car, hence the reason you dont use the numbering, just the model year.
UK cars dont have versions, so read the below list
MY94 First Production STi (some call this the version 1)
MY96 STI V2
MY97 STI V3
MY98 STI V4
MY99 STI V5
MY00 STI V6
That is the last of the versions they produced, all 6 of them
Now if the numbering carried on, and this equates to JDM cars ONLY.
MY01 STI V7 Bug
MY02 STI V8 Bug
MY03 STI V9 Blob
MY04 STI V10 Blob
MY05 STI V11 Blob
MY06 STI V12 Hawk
MY07 STI V13 Hawk
MY08 STI V14 Hatch
See where the confusion comes in, hence you give the model year, not the version
Tony
Last edited by TonyBurns; 18 July 2008 at 01:10 PM.
18 July 2008, 12:43 PM
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Well from what I understood the v8 meant the blobeye. My car is the 2002 blobeye import that never came out in the UK until 2003. So if I was just to say my02 people would think it was the blobeye and be wrong. Does that make scene or am I just plain wrong ??!!?
18 July 2008, 01:08 PM
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Your wrong
but in a nice way 
Your car will be an MY03 if its a blobeye, the model year starts in sept/oct of the previous year, ie MY03 would have come out in sept/oct 2002 and carried on until about aug 03, then the 04 cars would have come out.
My last JDM MY03 Spec C would have been (if they continued the numbering of course
) a Version 9.Now that I know what car you have, i'll answer your questions.
First, get it remapped, decatting any new age STI will kill the engine, especially the twin scroll cars as they use different pistons to the UK cars which are more "sensitive" to det, so your car will be doing 1 of 2 things, limp mode or dying
2nd thing is, that these dont need much to get them to 360bhp, ie exhaust and filter normally does it
you can add a 3 port boost solenoid, its not necessary but it can be useful.Oh and unless your car is a spec c, its running a VF37 twin scroll turbo (the twin scroll cars make a different noise to the uk ones as they have equal length headers, more like a bike
)Tony
tony for having the patience to explain all this
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