injection plate kit

[52Suburban]

Saw this on ebay

http://www.ebay.com/itm/1949-50-51-52-PLYMOUTH-CARBURETOR-INJECTION-PLATE-KIT-IN-BOX-1038-/361312980678?hash=item541fee8ec6&vxp=mtr

took one off mine 

I thought it was a vacuum port but not sure....what is it for?

[Don Coatney]

In the old days this snake oil devise was used to inject water and per the advertisers this made for a better performing engine.  This plate might work for NOS injection and that will give you a big HP gain for a short time.

[TodFitch]

One of the things people did back then was inject a little water into the engine. . . Theory being it would turn to steam. That would increase the pressure in the cylinder for more power and cool the engine a bit too. Maybe this was a kit for that. . .

[T120]

 Top cylinder oilers have also been around for years - may be part of one..

http://www.ebay.com/itm/Marvel-oiler-replacement-Ampco-Top-Cylinder-Lubricator-/130791069342

[Dave72dt]

I think the other thing the steam would do was decarbonize the combustion chamber, removing the hot spots.

[52Suburban]

In the old days this snake oil devise was used to inject water and per the advertisers this made for a better performing engine.  This plate might work for NOS injection and that will give you a big HP gain for a short time.

 

Thought about NOS too when I read injector - not sure the stock brakes are ready for that boost???

In the old days this snake oil devise was used to inject water and per the advertisers this made for a better performing engine.  This plate might work for NOS injection and that will give you a big HP gain for a short time.

[Ulu]

The first thing I thought when I saw that kit was "PCV valve conversion."