Below the big turbo, on the bottom of the block, there is what appears to be a small turbo. Looks like it is driving a dry sump system via a shaft? What exactly is this??

EVOlutionary

 

After looking at it again, it looks like the shaft from the dry sump is driving the small compressor, blowing into the block - to pressurize it???

 

your are close. you dont want to pump air in. you want to pump it out. its a vacuume pump.

 

is that a renault rally motor?

 

well it's clearly not a production motor. but is that a v-6 and we're only looking at the right bank? Also, what's the "hat" on the end of the compressor? Double also - whatever is running that vacuum pump is also scavenging the oil from the turbo, because that is certainly not a gravity line. Pretty sweet dual purpose auxiliary drive setup whatever it is.

 

Do you know what this set up is out of?? Look crazy. Why would you want to pull a vacuum on the block??

 

thats really cool good find

 

I have an similar unit on my drag racing engine. It's a mechanically belt driven external oil pump with vacuum pump, but not a dry sump. The external oil pump would have hoses off of each stage back to an external canister if it was a dry sump system with pickups in the oil pan. Remember: Vacuum Good!

 

Renault EF15B 850bhp+ V6 F1 motor.

We were discussing manifolds on Honda-tech last year when somebody posted a link to the Gurneyflap site.

 

Did you happen to notice on that page that they ran a max. of over 5bar !!! Isn't that like 70psi??

 

If you look at the mini "compressor", it sure looks like it is blowing into the block. In order for it to be making vacuum it would have to spin "backward" of what we see in a normal turbo compressor. If you spin a compressor backwards will it create much of a vaccum at the outlet? I wouldn't think so from the design of a compressor wheel. . .

 

this is not a turbo. its a vacuum pump that turns much slower. the blades are prolly straight so it can be spun either way. the rotor blades would be similiar to a turbo but would need to have a better seal to produce good air movement at low rpm.

 

that is a dry sump pump. and this motor is obviously a display motor with plugs everywhere. the plexiglass on the turbo outlet is cool.

 

wow. thats nuts. looking at the pics from gurney flap that is crazy looking. and yeah it does look like a museum or something. but yeah cool find.

 

Cool link. Always something to learn just by looking at pics. Look at the intercooler on the bmw engine. Tiny endtanks. How big do endtanks need to be?....