I found that at blowerdriveservice.com

Why i think its interesting is because I know alot of you guys use extra injectors or carb converted to EFI intakes. It would be cool to be able to get away from a fuel rail and use a manifold with bent brake line.

How do you think these guys are doing this? Do you think they are tapping the injector to fit a flare nut or what?

 

I can't make any assumptions on how they are doing it but I don't like the idea. The fuel rail has 3 purposes all in one small package. First it supply's fuel (duh), it also seals the injectors to the manifold. It's third purpose is to align the injectors for a common direction into the port. Without the rail you'll have to do all of those and still find a place for a regulator.
It looks almost like the system GM had with there vortec engines back in 96 with the CPI. The advantage of the CPI was it's size. The injector(s) were remotely mounted and the fuel was then passed into a small tube to be injected into the port.
What advantages do you see in that system other than it looks cool (which it definatly does).

 

the injector positioning on my car has always been a problem because I have a big roots supercharger. I would like to reposition them and this is interesting because other than having a physical restraint to the injector, your possiblities are almost endless.

 

you know i never knew CPI injectors where like that.

Have you ever seen one up close? is there a solinoid on the end or is it just a tube coming from a injector.. thats truely interesting.

 

Gotta be real, real, real, real, careful with those kind of setups. Notice how the air is purged?. You need the common point to be way up high so as to purge any air out of the system, and they're probably using 90+ PPH injectors, so they inherently purge well.
Not hardly the way I'd do it for a street car.
There are top feed injectors that us hose ends.

Pop a hose pre regulator, and you have fuel spraying about at several gals a min, and with a hot exhaust, and ignition system around it's an invite for disaster.

 

Yeah, ask any (former) Jag V12 owner...

 

They make threaded bungs for injectors.

I thought normally the injectors on a 671 were located above the blower. Guess it doesn't really matter. Top Fuelers have them in both locations since they use gpm.

I would be more worried about vibration cracking one of those lines.

 

how are teh lines any more vunerable to brake lines? IF done properly and secured they shouldn't have any chance to break

 

Cpi is similar to the body of a spyder(looks). The main body houses a single injector(or fuel distributor) with the regulator on it. Then there is the individual tubes that distribute fuel from the injector to the "nozzles". From what I understand, the nozzles are at a fixed delivery rate w/o anything to open/close them....

 

I don't like that idea for a street car because I don't want to pump water when it rains

 

 

On the vortec injection system, the tubes that run from the injector bank to the manifold, have popit valves on the ends that goes into the manifold. They are there to keep fuel from draining out of the tubes when the injectors arn't firing. They are set at a certain pressure that is overcome by the injector opening also providing the coneshaped spray for better atomization of the fuel.

Steve