Forced Air? TURBO? Options

[bob91403]

Could someone tell me why a scoop can't increase air pressure, as you go faster, and create the same kind of HP "boost" you get from turbo or superchargers? Excuse me for being ignorant. But, isn't it just a matter of increasing air pressure to the intake, and pumping in the right amount of gas for mixture? What about a pressurized tank of air, or both air and propane tanks? Couldn't you use a small compressor for boost, or as a source to refill a "boost" tank? I really don't understand this obcession with tubocharging. Nitrous systems have been around for a long time, and are much simpler. I was told, by my top rated Porsche mechanic, that, "Yeah, higher compression heads, turbocharging, supercharging, nitrous oxide, will all increase horsepower. But, anything you do to increase the horsepower will seriously lower the longevity of the engine." He doesn't even recomend european compression heads for a rebuild. I do understand, tubocharging a smaller engine gives you increased horsepower, plus the weight advantage of not having to put in a 3.2L six. But, if you have to rebuild it every 50K, instead of 150K miles, doesn't conversion cost less? Curious to hear your replies.

[Qarl]

P.S. I would like to know where you are getting a rebuilt engine for only $1500. I spent over $7000 rebuilding my 944 turbo engine and know a Porsche 6 costs more to do. I can't even buy a core engine for $1500.

I was reffering to a 2.0L four, not a six. Importmotors.com offers three different engines. A 2000cc for $1235, a 2165cc longblock for $1799, and a 2165cc Performance for $1875. They give $150 for a core 1.7 or 1.8, $300 for a 2.0. It seems they use a 2.0 case only for their "performance" engine. Anybody familiar with their products? Just go to ebay and search for 914 engine, then sort the list by highest price first.

Remanufactured can simply mean just picking a bunch of used parts that are close to within spec, new piston rings, gaskets, and slap it together.

Are they VW heads or true 914 heads? Cylinder head work done right will put you back $1K to $1.5K alone!

How long is it going to last?

How much horsepower will it make?

You get what you pay for...