 Forced Air? TURBO? |
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| bob91403 |
 Sep 17 2004, 02:56 AM
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Senior Member  Group: Members Posts: 618 Joined: 15-September 04 From: Los Angeles, CA Member No.: 2,763  |
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.
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| 914_1.8t |
Sep 18 2004, 12:17 PM
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Member Group: Members Posts: 302 Joined: 3-June 04 From: East Bay Member No.: 2,149 |
I don't see why it would be so difficult to turbo a 914 motor. You don't have to go huge turbo setup...you can get a k03 (off of a vw/audi 1.8t engine) with low miles for around $200. A lot of people with 1.8t's have upgraded their turbos like myself.
These turbos spike to about 17-18 psi at about 2200RPM and can hold ~1BAR (14.7 psi) upto 6K RPM. On the 1.8t these turbos commonly put down 250ft/lbs @wheels and about 180whp. You can use a manual boost controller in combination with the internal wastegate to control the boost ~$40. If you're handy with a welder you could make the piping and use the 1.8t intercooler ($20~$30). The only thing that is difficult to do is work the fueling. Probobly the best way do to it is to add extra injectors and use a fuel controller.....this should be not too expensive either --around $4-500? Anyone know how much horsepower the stock 914 motor can take before it blows? |
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Posts in this topic
bob91403 Forced Air? TURBO? Sep 17 2004, 02:56 AM
redshift A rebuilt 2.0 cost $6,000.00, a rebuilt 3.2 c... Sep 17 2004, 03:41 AM bob91403 ... Sep 17 2004, 04:44 AM bob91403 ... Sep 17 2004, 04:53 AM SLITS NAP is 14.7 lbs (sea level). A turbo, in theory, ... Sep 17 2004, 10:27 AM airsix QUOTE
soloracer For increased power you need to increase both the ... Sep 17 2004, 11:16 AM lapuwali A properly placed and ducted scoop would raise the... Sep 17 2004, 11:28 AM airsix ... Sep 17 2004, 12:25 PM SLITS They all mean the same thing, so what's the pr... Sep 17 2004, 12:45 PM lapuwali No problem from me. Some people get rather, um, a... Sep 17 2004, 01:00 PM airsix phantom914 SpecialK I prefer a less restrictive method of measurement.... Sep 17 2004, 03:39 PM redshift ... Sep 17 2004, 06:04 PM bob91403 QUOTE
mike_the_man I can't remember for sure, but I think there h... Sep 17 2004, 10:03 PM Red-Beard 6K for a 3.2 6cyl, purchase plus a no BS rebuild. ... Sep 17 2004, 10:05 PM Qarl QUOTE
Red-Beard It didn't cost me $1.5K to have my 911 he... Sep 18 2004, 10:27 AM Sammy Are those type 1 engines or type 4? My guess is ty... Sep 18 2004, 10:36 AM
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