i'm kinda curious and unsure of how injectors are specified...

example is something like 7x.12....what does that mean in terms of comparing to stock and what power levels you expect with specs shown like that.

it seems the "better" or "higher" performance injectors are shown like that or in lpm....

i just cant seem to find anything to explain how to make a comparison to what kinda power to expect from stock.

thanks in advanced

 

Check this out buddy:

7x or 6X injectors. What does that mean. - Dodge Diesel - Diesel Truck Resource Forums

http://www.robietherobot.com/storm/f...ectorguide.htm

Not a ton of help but some.

 

Simply put, a 7x.012 injector has 7 holes that measure .012"

 

that's simple but what's in mean in terms of calculating power gain....

i assume the more holes and the bigger the holes are means more power....but arent some injectors designed by diff companies different by that? meaning one company's 120 horse injector is say 6 hole and anothers is 7 and both have sizeably different holes? 7 holes would be for easier flow? better spray? seems like there's alot of factors in there that say how good an injector is and what it's going to do.

 

To figure a gain over stock you would need to know the flow differance between the two. You could get close if you figured total nozzle area of both injectors, but we would need to know the stock injectors hole sizes and #. That I do not know.

And yes, there are several designs of injectors in use in these trucks, differant hole patterns and spray angles, but I would still bet they figure hp gains by flow rate.

 

Not everyone matches injectors by flow rate. FYI stock is about 38-39LPM and 250HP is about 65-66LPM with different rates. It not necessarily a linear increase.

I flow match my injectors to about 2% and have seen a flow variance of up to 20% for others. There are lots of good injectors out there. just because someone purchased for $900 does not mean it is better than a $500 set made by a smaller company.

Jacob

 

There is more to Injector flow than just Hole size x Number of holes. You also have pintle lift and the design of the nozzle and pintle that changes what they flow.

Flow rates would be the absolute best way to rate injectors. Ratings like "200hp" and "7x12" are rather arbitrary.

For instance, a 7x.010 Injector could be rated anywhere from 150hp to 240 hp. Unless these companies start using flow rates to rate their injectors, you will either have to try and find as much info about the injectors as possible from the builder(good luck) or trust that the builder knows what he is doing.

 

Thanks for the good info Kazairl. There can be a lot of variance between a stated size and flow.