increase bhp

35

Asked by Aug 09, 2008 at 06:58 PM about the 1998 BMW 3 Series 323i Convertible

Question type: Car Customization

i own a 98 323, on it already i have a green cone air filter & a scorpion cat back system, i also own a 94 325 which i am breaking for spares including the engine , are there any engine parts i could use from the 94 325 to increase bhp on my 323, if not what could i do to increase bhp, many thanks Daz.

6 Answers

225

the best way is to install aftermarket cam shaft and do valve train mod's, idunno ur skill level but thats difficult for some if u dont have automotive background.

4,305

Well to start off most of the parts off your 325i are not compatiable, but I'm not sure about the intake manifold the OBDI M3 intake manifold if put on a OBDII e36 engine will increse the horse power 20-30. But other then that nothing is compatiable. As for upgrades to your 323 I would go with performance programing, highflow throttle body, header system to compliment your exhaust(free flow cats are not worth the money). Also look into getting a 3.19 LSD Differental yah it won't increase horse power but it will get all your new power to the ground alot better and make the car handle alot better. Those are just starters to work your way up to something like a cam upgrade as mentioned before but that can be a head ache and ruin your every day driving experience. If you have any more questions about upgrades look at bavarianpower.com and email me their I will be able to help you out further.

you guys forgot about the most important thing, in the 323 it uses the 318 exhaust system, so instead of having a true dual exhaust you have only one pipe. go to a true dual and hp gains will be significant

45

Throw a chip in that bitch or if its not a chip type get a power programer P.S. this car better be a 5 speed or esle I will hunt you down..

What you can do is install a header as well as a chip. The chip is the best bang for the buck. In a 325 i used to have, I just got a $40 one off of eBay and it made a great improvement in hp, torque, and even gas mileage. The cam shaft is another thing, but much more expensive. If you are looking for more acceleration, then a higher ratio differential would be the way to go, but you will be sacrificing your mileage. my 2 cents...

15

it depends how much money u want to spend in it... gruppe M intakes, UUC exhaust, headers will do you for the basic. then u can get new cam shafts, value train. pulleys. ECU. get a light weight flywheel.. that do a lot to help the accaleration.. get new rear diff will help the acc too. but then your top speed will decrease..

Your Answer

Add photo

Related Questions

3 Series

Looking for a Used 3 Series in your area?

CarGurus has 37,826 nationwide 3 Series listings starting at $1,500.

ZIP:

Search BMW 3 Series Questions

BMW 3 Series Experts

#1 Tom Demyan
Tom Demyan
Reputation 4,290
#2 Robert Charlson
Robert Charlson
Reputation 1,450
#3 Michael Branan
Michael Branan
Reputation 1,150
View All

Related Models For Sale

Used BMW 5 Series
595 Great Deals out of 14,899 listings starting at $1,000
Used BMW M3
55 Great Deals out of 1,918 listings starting at $2,250
Used Mercedes-Benz C-Class
843 Great Deals out of 32,183 listings starting at $1,200
Used Audi A4
260 Great Deals out of 11,458 listings starting at $800
Used Ford Mustang
362 Great Deals out of 44,486 listings starting at $1,000
Used Honda Accord
811 Great Deals out of 81,613 listings starting at $899
Used Mercedes-Benz E-Class
550 Great Deals out of 23,233 listings starting at $1,450
Used BMW 7 Series
168 Great Deals out of 5,952 listings starting at $3,400
Used Chevrolet Camaro
282 Great Deals out of 38,299 listings starting at $1,250

Used Cars For Sale

2017 BMW 3 Series For Sale
20 Great Deals out of 8,335 listings starting at $27,877
2016 BMW 3 Series For Sale
210 Great Deals out of 4,768 listings starting at $21,999
2015 BMW 3 Series For Sale
28 Great Deals out of 856 listings starting at $16,751
2014 BMW 3 Series For Sale
177 Great Deals out of 3,535 listings starting at $11,980
2013 BMW 3 Series For Sale
261 Great Deals out of 4,422 listings starting at $10,900