Mmmmmmmmm...
- Thread starter penski
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Soldato
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oh i totally understand why they went supercharged, i've just heard about Zetec's costing a fortune to mod N/A and assumed this would be the same.penski said:I couldn't tell you personally but its not that much work or expense...you're probably looking at less than fifteen hundred installed.
Zetecs are cheap, cheap to tune and a DIY blower arrangement like that is not that expensive.
It will have shedloads of torque too
*n
so, mr. Penski, the question beckons...where would you point someone looking for supercharger kits at good prices?
Soldato
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i didn't mean a crate with all parts required to install on car x, i just meant a fewlinks to places selling new chargers and associated components.penski said:
was a hypothetical question and i didnt have any particular motor in mind.
The_Dark_Side said:
Right...
The blower. an eaton m42...they're the dark side of 800 quid new. minimum.
OR less than 100 quid from a low-mileage cooper that has been upgraded to the john cooper works pack. ebay.
That will do you up to around 2 litres. maybe a smidgen more. above that and you will need a bigger blower. look at mercs and jags and budget around 500? Check the Eaton site for the best one for your application.
you will need inlet and outlet adapters to turn the irregular size/shape ports on the blower into usable circular ones. Talk to CR500dom on RR or TurboSport, he can make them and other bits and bobs (alloy header tanks, swirl pots et cetera...) and he really knows his onions. A good, helpful guy.
To around 5 or 6psi you can get away without cooling the charge, 6-9psi and you can use a chargecooler or intercooler and above that you needn't really bother as the increase in temperature combined with the decrease in efficiency means that it just isn't worth it.
Carbs or EFI?
Carbs, plonk a set of bike carbs on (unless you're talking 5 litre V8+) fed from an airbox that is fed by the blower/cooler outlet.
EFI, use one big throttle body (there is zero advantage to having ITBs) and fab a plenum chamber to feed a manifold with the injector bosses on the inlets. Or you can have the plenum feeding bike TBs. If you go EFI you'll need the associated ECU et cetera...
You'll need a blower bypass. I'm unsure as to the best method off the top of my head; get a big chavvy dump valve and cycle it between the inlet and outlet of the blower?
The best thing to do is PM dom on RR and ask if you can have a chat about it. Tell him what you are interested in and what plans (if any) that you have.
*n
Soldato
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The_Dark_Side said:
I've just bought the books by Corky Bell on both supercharging and turbocharging. Both make very good reading, especially when mixed with A. G. Bell's "Forced Induction" book.
The only thing I'd say about the Corky books is that the turbo book covers almost everything that the supercharger book does, apart from the obvious requirement of wastegates, while the blower book covers pulley ratios and so on instead (naturally). I think most of the chapters from Intercooling on are word for word copies as the theory is the same whichever FI system you are using. In that respect the blower book is probably a better buy as it also covers centrifugal blowers which are very similar to turbos in operation. If you read all about them, then you can probably find a bit about wastegates elswhere and save yourself some money if you do decide to try a tubby set up.
Other consideration are type of blower, roots, twin screw or 'fugal, and whether to stick the fuel in before or after the blower
Soldato
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Love the interior, that's well funky.
