Nozzle located in doghouse?

[turbodave231]

I've done a forum search and I didn't find too many discussions about nozzles located in the upper plenum. Is there a reason NOT to locate the spray nozzle in the upper plenum? Is it possible to flood one or two cylinders with this location?

I've seen nozzles in the up-pipe with lots of alcohol sitting in the intercooler. This can't be good!!

 

[WeSS]

nozzle

I've done a forum search and I didn't find too many discussions about nozzles located in the upper plenum. Is there a reason NOT to locate the spray nozzle in the upper plenum? Is it possible to flood one or two cylinders with this location?

I've seen nozzles in the up-pipe with lots of alcohol sitting in the intercooler. This can't be good!!

yes it is possible.

Better in front of the throttle body where you have a barrier. Usually when a scenario like that happens it is operator error.

 

[Chuck Leeper]

How about..

I've done a forum search and I didn't find too many discussions about nozzles located in the upper plenum. Is there a reason NOT to locate the spray nozzle in the upper plenum? Is it possible to flood one or two cylinders with this location?

I've seen nozzles in the up-pipe with lots of alcohol sitting in the intercooler. This can't be good!!

Running a NOS spraybar, from the rear of the plenum? The holes in the tube can be directed at the cyl head ports. The volume can be "tuned" w/ NOS jets, that fit in the end of the bar....

 

[Reggie West]

Why not make a plate that you can set on top of the dog house?

Run one NOS port for each cylinder aim it straight at the intake runner.

Or were you thinking alcohol?

 

[Chuck Leeper]

I was..

Why not make a plate that you can set on top of the dog house?

Run one NOS port for each cylinder aim it straight at the intake runner.

Or were you thinking alcohol?

thinking "alky"!
OR... Run a set of NOS "NOSLES", that go under the injectors. Use a 100 shot, and use the gas side for alky... Best of both worlds.

 

[Razor]

I've done a forum search and I didn't find too many discussions about nozzles located in the upper plenum. Is there a reason NOT to locate the spray nozzle in the upper plenum? Is it possible to flood one or two cylinders with this location?

I've seen nozzles in the up-pipe with lots of alcohol sitting in the intercooler. This can't be good!!

If you saw alcohol in the IC, then this would be a perfect indicator that the system isnt setup correctly, wired properly, or something else. Let alone the vehicle that had this condition would have drivability problems like bad startups, coughing, sputtering, etc.

The plenum see's vacuum when the TB is closed. Notice this is why vacuum guages are connected to intake/plenum vacuum. Placing a nozzle in the plenum means you have to use a solenoid to shut the liquid off. This adds cost, and a difference of 6 inches pre TB vs post TB.. there is no performance difference. If anything pre TB gives the alcohol time to flash and atomize with the air.. this would help distribution.

Nitrous spray bars are designed for nitrous. meaning the 1000 PSI of the nitrous is what breaks up the liquid(typically gasoline). So no.. great idea.. not correct.

Individual injectors running on methanol would work and have a dual fuel system. Just that alcohol injectors(stainless) are a bit pricey. So back to square one.. where by a single nozzle(10.00) placed in the up-pipe stops detonation nicely cost is low.

 

[turbodave231]

Thanks for the input.:redface:

I've never run alcohol and I'm working on a customer's car with an alky kit. Lots of thing aren't quite right on this car and I'll be fixing all of them. I didn't think about the manifold vacuum acting on the nozzle. That explains why most guys run the nozzle in the up-pipe.

 

[Razor]

Thanks for the input.:redface:

I've never run alcohol and I'm working on a customer's car with an alky kit. Lots of thing aren't quite right on this car and I'll be fixing all of them. I didn't think about the manifold vacuum acting on the nozzle. That explains why most guys run the nozzle in the up-pipe.

If its my kit.. call me and i'll be more than happy to walk you through it.