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Aug 21, 2006 18:58:49 GMT
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I totally agree Dom, helping someone who is stuck but has been working hard i am happy to do, someone who wants a free meal can go poke them selves in the eye! Its funny how when i try and find something out i end up writing a whole list of new things in my little book to do some reading on, its a'hold that thought' situation! I HAVE to get hold of a comprex wave supercharger, they were only ever put onto mazda 626 diesels in europe, and not here! Turbocharger efficiency, boost from idle, no back pressure, capable of mega boost (2-3 bar), no parasitic losses, and very few parts to break (only one moving part). Ferrari tested on on their turbo F1 car, it dropped 2 seconds from a lap of Spa but was not used as their turbo supplier (KKK i think) got stroppy and wouldent let them out of their contract! J This thread makes very interesting reading for a novice on the subject like me and the Civic article was paticulary good, cheers. But even a know-very little like me can be of some use here, Mazda did sell the comprex charger 626 diesel in the u.k but not many, I was working for a Mazda dealer when they were launched and we had one as a demo, I think we only ever sold about three before they stopped production. forum.mazda6tech.com/about3527.html
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Aug 21, 2006 19:50:57 GMT
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Theres a few knocking around over here, I might try and get a closer look.
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1972 Fiat 130 1985 Talbot Alpine 1974 Lancia Beta Saloon 1975 + 1986 Mazda 929 Koop + Wagon 1982 Fiat Argenta 2.0 iniezione elettronica 1977 Toyota Carina TA14 BEST CAR EVER!!!!!!!! 1979 Datsun B310 Sunny 4-dr 1984 Audi 200 Quattro Turbo 1983 Honda Accord 1.6 DX GONE1989 Alfa 75 2.0 TS Mr T says: TREAT YO MOTHER RIGHT!
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slater
Club Retro Rides Member
Posts: 6,390
Club RR Member Number: 78
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Should i buy a blower??slater
@slater
Club Retro Rides Member 78
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Aug 21, 2006 20:13:55 GMT
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This all sounds very interesting but way more complex than i want to undertake at my first attempt at supercharging anything!
Is there relly anything stopping me building an engine as i would for NA (10:1) and then running a blower on the side with conservitive gearing (ie not alot of boost) then mapping it all out on a normal ECU with no special sensors. I could include intercooler/charge cooler if nessicary but is it 100% nessicary as it does make it alot more complicated? sucking through a single throttle body with the charger straight on the manifold is easy to do and more what i was thinking of but is it the case that it will work very bad or just not quite as good?
What you guys are taking about is interesting
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Aug 21, 2006 20:31:44 GMT
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I don't see why it won't work, if you ask for too much boost from the supercharger you will run into problems with the intake charge getting too hot (detonation and poor density of the intake charge/poor supercharger efficiency) but if you go steady with the boost theres no reason why it should not work, and it oughta make a quality, smooth powerful engine with good driveability.
Eaton have the maps for those chargers available on their site so you can work out how much 'boost' you'll be running for a your engine size/speed/power output.
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Last Edit: Aug 21, 2006 20:32:17 GMT by Mr_Bo11ox
1972 Fiat 130 1985 Talbot Alpine 1974 Lancia Beta Saloon 1975 + 1986 Mazda 929 Koop + Wagon 1982 Fiat Argenta 2.0 iniezione elettronica 1977 Toyota Carina TA14 BEST CAR EVER!!!!!!!! 1979 Datsun B310 Sunny 4-dr 1984 Audi 200 Quattro Turbo 1983 Honda Accord 1.6 DX GONE1989 Alfa 75 2.0 TS Mr T says: TREAT YO MOTHER RIGHT!
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MWF
Posted a lot
Posts: 2,945
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I could include intercooler/charge cooler if nessicary but is it 100% nessicary as it does make it alot more complicated? Adding an intercooler wouldn't make it much more complicated at all mate, certainly worth it.
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Aug 22, 2006 11:44:43 GMT
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When the purpose of adding a supercharger is to increase Volumetric efficiency, its defeating the object to decrease VE by reducing C/R don't bother with an aircon clutch, keep it simple, direct drive and run a bypass for Idle and part load conditions Remember a Supercharger is not a turbo, they have different requirements and should not be lumped together under the Generic "Forced induction" heading, you should not be chasing boost either with a roots type charger...... its volume of air rather than pressure which is important ;D
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Aug 22, 2006 11:48:03 GMT
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someone who wants a free meal can go poke them selves in the eye! poking now! didn't realise that forced induction was a top secret business that no-one else is allowed to know about... On the contrary Ed, Its far from it I have a lot of time and effort invested in the knowledge I now have, its not top secret and you are free to attain exactly the same knowledge if you wish by putting the same amount of effort into your research ;D ;D
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Aug 22, 2006 12:03:55 GMT
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When the purpose of adding a supercharger is to increase Volumetric efficiency, its defeating the object to decrease VE by reducing C/R Does reducing the comp ratio reduce the VE? I understand VE to be a measure of 'success of cylinder filling', reducing the comp ratio will reduce work in/work out ratio, which I think is combustion efficiency? Or thermal efficiency? Not sure like.
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1972 Fiat 130 1985 Talbot Alpine 1974 Lancia Beta Saloon 1975 + 1986 Mazda 929 Koop + Wagon 1982 Fiat Argenta 2.0 iniezione elettronica 1977 Toyota Carina TA14 BEST CAR EVER!!!!!!!! 1979 Datsun B310 Sunny 4-dr 1984 Audi 200 Quattro Turbo 1983 Honda Accord 1.6 DX GONE1989 Alfa 75 2.0 TS Mr T says: TREAT YO MOTHER RIGHT!
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