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It is probably the same as the '99, which the book says 170hp at the crank, but I don't know to the wheels.

Send a question to BMWUSA at their website.
 

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170bhp at the crank. I had my chip reprogrammed. It has now 194 bhp at the crank.
drives like an 325 now :)
 

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I test drove both a 323 and 325. They felt pretty much the same to me. Maybe the 325 more low end power, but the 323 seemed to have a better sweet spot.

It could all just be in my head though.

However, the M52TU is better accepting of mods it looks like.
 

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my 323 had 150 to the wheel s befor the supercharger was installed.
 

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325 - 184 hp @ 6000 rpm, 175 ft-lbs: 3241 lbs
323 - 170 hp @ 5500 rpm, 181 ft-lbs: 3153 lbs

I think the 325 makes the same hp @ 5500 rpm as the 323, so while the 323 tapers off after 5500 rpm, the 325 continues increasing hp for another 500 rpm's. There would be a bigger difference if not for the 325 being heavier. The extra 100 lbs negates much of the hp gain over the 323.

The increased weight is due to more std equipment, so it's a positive & a negative.
 

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I mainly choose for a chip rewrite, because I carry a lot of ICE stuff in the trunk and was experiencing some performance loss. Also the 19inch wheels contribute to that .
 

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How do you know that you have 194hp at the crank?? You can only measure HP at the wheels.
 

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thats just a guess. the only true measurement we can make is at the wheels.
 

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323's are anemic at best especially the tippy versions. My girlies barely gets out of it's own way. I find it odd that a german sports sedan can get womped by a Jeep Grand Cherokee.

As far as chip tuning goes you are dreaming if you think you gained that much hp. If the car eats more it poops more. A chip can recalibrate fuel mappings and ignition curves but it simply moves them around for perceived benefit. The real gain comes with improved intake flow, and more fuel to take advantage of the chip mappings. Then of course you have exhaust to get rid of it all...eating and pooping just like in people.

-Jeff
[email protected]
 
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