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Join Date: Sep 2003
Posts: 58
Lightbulb Boosting a E21 320i

I'm new to this forum for the simple reason that I don't have a BMW, but I'm interested in buying one. I've been focusing my search mostly on 325's, but I found a good deal on a '82 320i. It's been garaged, though it's been sitting for about two years. Based on specifications for weight and horsepower for the two models, it clearly trails any 325 in the horsepower-to-weight ratio department, but I got to thinking that the shortfall could be overcome using a supercharger and some moderate boost. This leads me to two questions:
1) How much boost would I likely need to eliminate the power gap?
2) Can the short block handle the additional stresses without having to resort to a full teardown?
A little more power would make this car a nice ride in my humble opinion and, with the popular focus seemingly being on E30 and later cars, a rather unique one as well. Any feedback would be appreciated, as I haven't made my purchase yet. Thank you.
Old 10-27-2009, 11:33 AM
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Luccia at Pelican Parts's Avatar
Join Date: Feb 2015
Posts: 3,077

You might be able to find something in this article here: Pelican Technical Article: Turbos and Superchargers for Your BMW

If not please don't hesitate to post a comment and have a technician better answer your questions.
Old 03-03-2015, 06:26 PM
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nancy2809's Avatar
Join Date: Feb 2016
Location: India
Posts: 2

I have also bmw.
I need some description about bmw.
Old 02-23-2016, 12:49 AM
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