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Discussion Starter #1
Can you compare the STi with the WRX in terms of low-end power (basically, how well is the AVCS working)?

Now that you've put a few miles on it, any further impressions? Has it changed character at all?
 

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Low end power out of corners in 2nd is a lot better than WRX but it has more to do with the gearing than the AVCS.I think that the WRX with 6 speed box would probably feel the same. To be really honest there are no fireworks below 3500 rpm. Once you cross the 4000 revs it becomes a different car. The gearing is perfect.After every change you come in at perfect boost level and it's not a snap changing chore to keep it alive. The car is still standard so I cannot comment on the car with a de-cat exhaust but from what I hear the low end power and torque is way up when changed. I can't wait. My old MY00 felt faster but believe me, it's just an illusion. When taken to 6500 revs this car is like a bullet ( :smile: ).The only problem is that you don't feel it as much. A fellow STi driver had his on the dyno the other day and he pushed out 196 Kw (263 bhp) at about 6500 rpm. Few bolt on mods and this car will push 300+ bhp easily.

When I get a real muffler to add the Scooby growl I'll be happier 'cos I'll have about 30 bhp more in my head. :smile:

<font size=-1>[ This Message was edited by: Bullet on 2002-02-09 19:48 ]</font>

<font size=-1>[ This Message was edited by: Bullet on 2002-02-09 19:49 ]</font>
 

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Discussion Starter #4
Bullet,

Thanks for the response. Very nice to have some input from someone that actually owns the car.

I thought the cat in the uppipe was the biggest lag-inducing factor?
 

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As far as I know there is no cat in the up-pipe.One in the downpipe and one centre.The AVCS helps with emissions control thus no need for uppipe as in WRX.
 

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There are a couple of guys in UK that have changed to Scoobysport pipes and no cat in up pipe.Pete croney from Scoobysport has confirmed that there is no cat in the up-pipe.
 

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Sounds like switching exhausts and freeing up the engine from its 2 cat burden would do a lot for hp/bhp/ps. But what would be the the emissions implications by switching to one of the aftermarket exhausts? Would they be 50 state legal and give me a power boost? This is an issue that I have to worry about in my region of the country-passing that yearly emission inspection.
 

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Discussion Starter #9
No cat in uppipe, huh? Very interesting.

Does the UK standard WRX have 3 cats, or only 2 as well?
 
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