What the heck are these?

ubercrap · Post by **ubercrap** » Thu Feb 24, 2005 7:51 pm

http://cgi.ebay.com/ebaymotors/ws/eBayI ... Track=true

ecdez · Post by **ecdez** » Fri Feb 25, 2005 5:33 am

Now that's a tall intake!

DeathBus · Post by **DeathBus** » Fri Feb 25, 2005 6:12 am

those are true Dellorto intakes i believe

raygreenwood · Post by **raygreenwood** » Fri Feb 25, 2005 4:21 pm

What does he mean....used for racing "WHEN" VW's were popular....

....boy needs a kick to the head! Ray

ubercrap · Post by **ubercrap** » Fri Feb 25, 2005 5:35 pm

raygreenwood wrote:What does he mean....used for racing "WHEN" VW's were popular.... ....boy needs a kick to the head! Ray

Ha ha, I know!

Anyway I was confused because it looks like those things are shafts sticking through the carb manifolds????

sideshow · Post by **sideshow** » Fri Feb 25, 2005 8:26 pm

While I'm not actually qualified to comment on this, my feeling is that this is some sort of Hilllborn type induction. Ya see injector bosses (not electric type) and butterflys and a place for linkage.

ubercrap · Post by **ubercrap** » Fri Feb 25, 2005 9:44 pm

sideshow wrote:While I'm not actually qualified to comment on this, my feeling is that this is some sort of Hilllborn type induction. Ya see injector bosses (not electric type) and butterflys and a place for linkage.

Yes! My thoughts exactly! With butterflies in the intake manifold I knew it must be something like that! Hilborn came to mind, but I have no clue how it works, just know it's old.

ubercrap · Post by **ubercrap** » Fri Feb 25, 2005 10:01 pm

Well, only found a little info on EVM injection, this guys has it on his "Midget Pogo" race car:

http://www.vintagegarage.com/midget.html

The guy selling these things has some sprint car stuff too, so it must be some sort of racing setup? Oh well, I bid on them, they're just obscure and useless enough to be desirable in my eyes!

ubercrap · Post by **ubercrap** » Fri Feb 25, 2005 10:33 pm

Interesting, seems these old systems used fuel pumps mechanically linked to the engine to provide variable pressure according to engine RPM's? Mechanically metered fuel delivery instead of air-flow controlled like K-Jet/CIS? The coolest part would be some honking chrome velocity stacks mounted on there!

ubercrap · Post by **ubercrap** » Fri Feb 25, 2005 10:43 pm

Ah, here we're getting closer...

http://www.hilborninjection.com/product ... &CatId=150

sideshow · Post by **sideshow** » Sat Feb 26, 2005 7:45 am

Again, I'm not quite sure but that style uses reverse jetting. So you run a mech pump (cogged drive) and use pills to restrict the return line. The injectors I think are spray nozzles (like CIS). So RPM = Fuel spray, adjustments are made down stream by volume.

Cool stuff.

raygreenwood · Post by **raygreenwood** » Sat Feb 26, 2005 7:48 am

It sounds more similar in delivery to Bosch high pressure injection. Does it use restrictor pills like Hilborn? Or is the pump timed and pulsed like Bosch? Ray

sideshow · Post by **sideshow** » Sat Feb 26, 2005 7:58 am

Hard to tell based on just the manifold. But pulsed no, constant stream. I don't think it was common to time this style fuel systems (ie no fuel distributer). Has anyone asked Marc?