Dual Nozzle + solenoids

[Pablo]

Once I get my car back on the road Im looking at adding a second nozzle and solenoid valves to just before the nozzles.

I wanna do a max effort run on the stock long block and see what I end up with since I plan on building up another engine anyway. Also, I'm at the limit with the single nozzle and 27 psi as it is.

I have noticed after an extended highway cruise that I have to reprime the system. I have to be careful about getting on it if ive been driving on the freeway or it will knock bad until the line gets full. I think im getting a venturi effect pulling the methanol out of the line like what happens with a carb... that or its just evaporating out of the nozzle.

So I want to work in solenoids like ive seen mentioned, how do you wire these up, and can you use two like on a dual nozzle set up?

 

[Razor]

At 94 in the 1/8.. you probably still have a few more MPH on a single. If it aint knocking.. its doing its job. Once you find your knob all the way to the right.. then you add the second nozzle and back it down.

Call me to discuss the system.. gotta a couple things to run by ya.

 

[Pablo]

knob is all the way to the right allready

Ill give you a holler soon

 

[Draco]

You know what, check valves would probably help your 're-priming' issue.

I run dual nozzles and was very disappointed by the need to re-prime every few minutes. I would run lean for nearly a full second at tip-in! Then after adding check valves, I get near-instant response from the pump even after an hour or more of not priming.

I think this works because liquids cannot be compressed, and with the check valves in place the line remains full of methanol. This means as soon as the pump starts spinning, the pressure will build extremely quickly without the need to drive the air out of the line first.

 

[Razor]

Correct.. but I want to discuss with Pablo his system before making any recommendations

And this discussion cant happen over a forum :wink:

 

[spins4]

Draco- what kind of checkvalves do you run?