380 Injectors

Interested in how it goes, the 5 O injectors are drilled out.

My guess is your MPG might take a hit without the car being retuned. Did you reset the computer to learn the injectors?

Hi, John - is there a problem with the drilled ones?  I used to drill jets for various carbs with a special jig set on kind of a special drill press thing.  Has there been a quality problem (like with my first few sets of jets...)?  How are they normally made?  Curious minds want to know.  OK, maybe just one curious mind...

Thanks in advance for whatever you can tell me.
Pat

Thanks Tristan, if that doesn't work I have a different one at home I can link.

onramp wrote: Hi, John - is there a problem with the drilled ones?  I used to drill jets for various carbs with a special jig set on kind of a special drill press thing.  Has there been a quality problem (like with my first few sets of jets...)?  How are they normally made?  Curious minds want to know.  OK, maybe just one curious mind...Thanks in advance for whatever you can tell me. Pat

2 different issues carbs vers injector. But in some since the same problem. When you inject fuel into a cylinder you want a nice clean burn. This is done with different patterns and atomizing the fuel. When you drill out or port the inject nozzle you basicly get a straight stream of fuel. Picture your garden hose nozzle that you wash the Mini with, turn it to fan/fog/cone you get a nice shaped fine spray of water , now turn it to full stream you will get a solid blast of water in one spot. Now picture this inside your engine, the fine cone spray will burn better creating more power with less fuel and making the A/F easier to balance. Some problems that can happen with drilled nozzles is that because the fuel does not get burned very well, you can have fuel wash in the cylinder , your O2 sensor can also read this as if you were running rich and try to correct the problem. The other side is most drilled nozzles are a lesser injector that does not have the duty cycle of a nozzle design for that set cc unit of injection.

That a couple of thoughts. I can throw some more out there when I get home, and hit those other questions Pat

Edited by johnf36 - September/29/09 at 6:24pm

We can also talk about patterns, if my memory is right the JCW injectors have a split duel cone pattern to match the way the head and intake is designed.

John

Well so far so good... reset the ECU and added the 380 injectors.. the drive to work was spirited and felt real good...

Thanks Tristan...

You should be fine, just might take a hit on MPG

the pattern is full

Fly by achieved.. Sub Sonic speed ..whoooooooooooooooshhhhhhhhh!

BurnerS wrote: Fly by achieved.. Sub Sonic speed ..whoooooooooooooooshhhhhhhhh!

Dang now I have coffee on the keyboard

So 3 months later... Overall performance was improved and mixed with the new CAM  It feels like this little car can get it up and move it on down the street..

Nice but you will be running on rims and that is not good!

Some have it all.....