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Discussion Starter · #1 ·
I was just looking at the standard figures of the evo range on some website and noticed that for the evo 2 bhp is down as 260 (256bhp I thought) and torque is 228 lb/ft.

Mine shows about 265 bhp and 280lb/ft.
I have an uprated exhaust, induction kit, apexi downpipe and other bits like nice leads and spark plugs etc.

Just wondering what has made such a difference to the torque? Any ideas?

cheers
Jon
 
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Discussion Starter · #2 ·
I would guess the 'uprated exhaust, induction kit, apexi downpipe and other bits like nice leads and spark plugs etc.' have made the difference http://www.ltregister.f9.co.uk/graphics/happy1.gif border|EQU| 0 align|EQU| absmiddle >

Seriously, improving the engine's breathing can apparently account for increases such as yours. Either that or the RR is wonky!
 
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Discussion Starter · #3 ·
cool! It certainly does have a lot low down. Puts a smile on my face http://www.ltregister.f9.co.uk/graphics/Happy.gif border|EQU| 0 align|EQU| middle >

Got a long list of things I want to do:
strut braces, fuel controller (desperate for better economy!!) but I am thinking about decatting as the next move as I'm under the impression this is (a) relatively cheap and (b) should make noticeable difference to performance.
I believe you need the cat on for the MOT, just wondering if taking it off afterwards has any effect on the insurance? Thoughts on this and what performance gains could be expected anyone. Much appreciate all the feedback from you guys.

Regards
jon
 
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Discussion Starter · #4 ·
Strut braces - Although I've not bothered to remove mine to see personally what difference they make, according to some they are a must, ask TonyC http://www.ltregister.f9.co.uk/graphics/happy1.gif border|EQU| 0 align|EQU| absmiddle >

Fuel controller - I looked into these and couldn't justify the cost at the moment, would be nice though to eke a few more miles out of each tack without compromising performance.

Decat - I'm sure that if an insurance loss adjustor found a decat pipe on your motor they would refuse to pay up. [I]IF[/I] he found it that is... [img]http://www.ltregister.f9.co.uk/graphics/happy1.gif border|EQU| 0 align|EQU| absmiddle > Useful gains to be had by removing it though.
 
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Discussion Starter · #5 ·
DECAT

If you decat, your fuel consumption will go up significantly, but performance wise, no big difference. Try to up the boost a little instead!

Claudius
 
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Discussion Starter · #6 ·
I see. Well I'm pretty keen not to increase fuel consumption any further as the car is my everyday car and drinks petrol as it is.
Also trying to keep fully legal.

Will consider the boost option then when funds allow. could be fun!!
 
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Discussion Starter · #7 ·
Hehe, boost increases will cost you more in fuel too! You don't get something for nothing and it's imposiible not to use the extra grunt if you have it http://www.ltregister.f9.co.uk/graphics/happy1.gif border|EQU| 0 align|EQU| absmiddle >

I just live with the petrol costs (doesn't mean I'm happy about it though) last months petrol bill was £360!
 
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Discussion Starter · #8 ·
I think my CAT is knackered as it producing so much heat it is coming in to the cabin. I want to replace it, but why would it use more petrol. From conversations i have the only reason the cars over fuel is to keep the CAT cool.
So if I remove the CAT i can reduce the fueling!
How can you tell when you CAT is dead, it passed it MOT at the beinging of the year, but the garage where i had it done was dodgy to say the least. If the CAT dies does you emissions go up. Also the cars pre K plate.
Cheers
Al
 
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Discussion Starter · #9 ·
More petrol won't cool the cat, extra fuel is used to prevent detonation and to keep the engine running cooler.

The cat being warm enough to be noticed in the cabin would indicate that it is indeed fuctioning as intended, the light-off temperature for a cat is about 250oC and temperatures can reach much higher. Is this something you've just noticed recently or has it always been like that? Go here for more about cats.

My guess is that if the wee light on the dash stays off and you've passed the MOT you're OK
 
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Discussion Starter · #10 ·
I first noticed the heat after having the car for about 6 months. It was the bloke from MAdevelopments who told me about the fueling thing. Im just worried it will affect the body of the car as it keeps warming up and cooling down. Keeps the passengers feet warm though.
I will get a CAT replacment cause the cars feeling down on power at the momement, getting a new dump and air filter to help things out.
What did you think of my car on Top Gear Chunky!!!
Cheers
Al
 
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Discussion Starter · #12 ·
don't get something for nothing http://www.ltregister.f9.co.uk/graphics/Sad.gif border|EQU| 0 align|EQU| middle >

D'oh! and I was hoping some kind soul might throw an evo III front bumper my way, and maybe a couple of strut braces, some nice outgrown brake kit bits, and how about an evo III suspension setup?? [img]http://www.ltregister.f9.co.uk/graphics/Happy.gif border|EQU| 0 align|EQU| middle >
Guess I'll have to wait until Christmas now!
 
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Discussion Starter · #13 ·
I took out my cat, lost some power low-down, but both top-end power and fuel mielage increased a wee bit! http://www.ltregister.f9.co.uk/graphics/happy1.gif border|EQU| 0 align|EQU| absmiddle >

Get a downpipe and remove the cat! [img]http://www.ltregister.f9.co.uk/graphics/happy1.gif border|EQU| 0 align|EQU| absmiddle >

BTW, haven't you guys tried checking out the 1st and 2nd generation Apex'i AFC analog fuel controller? It's the little black box about 1/3 DIN size, and it has knobs for adjusting 7 RPM ranges. It sells for about half the price of the Apex'i AFC Digital controller. And It should cost well below the 360 Pounds UK you guys fork out for a month's worth of gasoline! [img]http://www.ltregister.f9.co.uk/graphics/happy1.gif border|EQU| 0 align|EQU| absmiddle >

This is what I'm getting, and plan to play with the first 2 RPM ranges (900-2K and 2001-3K) for better fuel economy off-boost i.e. long-drives, city traffic. Might pick up a few more HP's as the Evo's do tend to run a wee bit rich even low-dwon, causing bogging.

My 2 cents worth! [img]http://www.ltregister.f9.co.uk/graphics/happy1.gif border|EQU| 0 align|EQU| absmiddle >
 
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Discussion Starter · #14 ·
Apparently the car has an apexi downpipe.
I'm not sure exactly what this is for. Its not a replacement for the cat is it? because i thought there was a cat still on there too.

excuse ignornace

cheers
Jon
 
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