Kicking around the idea of a supercharger.

[RoyBatty]

I have a carbureted 1975 Spider that is a blast to drive.
However, there are times when I would like more power.
I would like to use a similar setup to the Volumetrico that was used in the past.
I like the idea of pulling through the carburetor.
Are there superchargers used in other automotive OEM applications that could be adapted?
I have a friend that could help fabricate brackets and ducting.
I found this cute little unit here that looks like a possibility.
Anyone know what it was originally built for?
EDIT: I found that it is for a 1998-2000 Mercedes 230.
Looks promising.
http://shop.advanceautoparts.com/webapp ... u=99999065#

[fiasco]

That one is for a 98-2000 Mercedes C230.

http://www.cardone.com/English/club/mem ... UM=2R-701#

-- se

[RoyBatty]

Hi Fiasco,
Yup I found that too.
It looks as though the Mercedes engine is also an 1800CC four cylinder.
This particular supercharger looks as though it might lend itself well to custom fabrication of the bits needed to make it all work.
Not sure I need the clutched drive pulley though.

[So Cal Mark]

seems a little pricey for a rebuilt unit. Time to hit pick-a-part?

[RoyBatty]

I was considering that also Mark.
Just considering that if I go thru the trouble to make the drive and brackets, do I want to risk a blower of unknown condition.
Although, I guess I could do a tear down inspection on a wrecking yard unit.

[BEEK]

i have a wrecked 230 kompressor that i saved for that very purpose. i have not yet played with it, but its on my list

[RoyBatty]

You realize of course you are required to reveal your evil plans as you work out the installation.

[Zmatt]

Just to make research easier, the supercharger that the benz M111 engine uses is an Eaton M45. I know this because my daily driver is a C230K. In stock form it doesn't make much boost but ASP makes a pulley for it. Dunno if it's the supercharger pulley or the engine pulley it runs off of though. it's not a very large unit, but on the 2.3L I4 it makes 192hp and 200lbft of torque, so it should be a good match for for 1.8 or 2.0 TC engines.

EDIT:


pressure map.

[131]

I've got an M45 from a merc in the shed that I hope to one day mount on my 2 litre. I've had it 4 years, so it's a long term project. The car is currently running on LPG, so the plan is to mount the blower low on the left hand side of the block, blowing into a throttlebody mounted on a Fiat Tempra manifold, with LPG injectors controlled via megasquirt ECU. I haven't started playing mock ups yet, but one issue I think I will have is the blower fouling on the starter solenoid. I've mounted a 6 rib crank pulley from a Saab V6 onto the front of the Fiat crank pulley, which if I've crunched my numbers correctly will give me around 7 PSI.

[RoyBatty]

Nice 131,
Good luck in making it work.
Get us some pics as you go.

[Daniel]

Isn't this a depth chart for Lake Tahoe ?

[joelittel]

Has anyone successfully built a supercharger for their car yet?

[SteinOnkel]

Pull-Through/Push-Through Carburetor setups are very, very difficult to get right.

I'm not familiar with the volumex setup, but I suspect it is fuel injected. When it comes to these projects, there is enough "reinventing of the wheel" that you need to do, that I would suggest always taking the path of least resistance. And don't try to outperform the factory - they had every single resource at their disposal. Not to mention teams of talented engineers.

Therefore, I think a carburetor setup with a supercharger is a terrible idea.

If I were so inclined, I would for one seriously consider the option of turbo-charging. There is plenty of room in the engine bay for an intercooler, the turbocharger itself, wastegate, oil lines etc. Also, with most gasoline burners in the past 10-15 years having turbos, the junkyards are full of miscellaneous bits that you need and new parts are abundantly available. You can pick up a modern(ish) VW TFSI header and turbocharger for around 100 Euros on ebay.

And secondly, no matter what sort of forced induction, I would go programmable efi. Whether it's a Megasquirt 3 or even Pro, EMU Black etc etc. It would definitely be open source, community driven and not uncharted territory. People have been using these systems to turbocharge their cars for years. They work.

Cheers
Steiny

[Cstorry]

The spider volumex is suck through carb as were all the other Fiat and Lancia cars that used the volumex supercharger.

The 131 volumetrico and Lancia 037 both of which use the "larger" Abarth blower also used carbs.
The 037 evo cars later switched to Kugelfisher fuel injection for more power (still no intercooler). The Delta S4 which also uses the bigger Abarth blower, like the 037, and to make it more fun also a turbo did have an intercooler and was also fuel injected.

Note that the volumex is not intercooled and has a relatively low boost level (7 or 8 psi) for a claimed power output of around 135hp.

I do agree that EFI would be better if starting from scratch - or if building up a volumex clone it might be worth trying one of the throttle body injection style units with weber carb body.

[toyfiats]

Years ago in FLU's Ricambi magazine there was a two part series about an owner that used the Volumex supercharger and adapted FI to it for his Scorpion. Quite a bit of fabrication and skill involved, if I remember.