Jeff20B

iTrader: (13)

Racing Beat's Holley carbs have had a nipple for oil injection for decades. Works well enough. The oil doesn't seem to mess up anything.

I'd like to add a nipple to an Edelbrock so I don't have to premix. There is an undrilled vent casting for marine use that I'd like to drill and tap for a nipple. How would the introduction of oil affect the accel pump plunger and other carb seals? Any thoughts?

t_g_farrell

iTrader: (1)

Well, lets think about it. if you premix you have the same issue because the oil is in the gas. So I would think its a non issue. You could tap it into the bowls instead. Just an idea.

Jeff20B

iTrader: (13)

That's a good point about the premix oil getting in all the same places. Thanks.

I gotta pull the carb today anyway so I'll take a good look at it for places to install the fitting.

t_g_farrell

iTrader: (1)

I guess the only thing to watch out for is to NOT put the nipples in a place that generates positive pressure.

Not familiar with the Edlebrocks. How will they do on cornering? Better than a holley (even with the special floats setup)? Keep us posted.

Jeff20B

iTrader: (13)

I used the marine vent location for the oil nipple. Most people wouldn't do this because most of the oil tends to go to the front rotor. However in a supercharged setup where the intermediate ports are joined together just inside the manifold, it doesn't really matter.