for those with 175 cc injectors..... - Ford Powerstroke Diesel Forum
6.0L Performance Parts Discussion What has or has not worked for you?

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Old 06-30-2013, 10:51 AM
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for those with 175 cc injectors.....

I'm kind of new to the nomenclature of the aftermarket HEUI injectors, can someone fill me in? they are 175cc with stock nozzles

Might get a deal on them. I'm wondering how they affected your mileage and such. I was going to keep it stock besides programmer and exhaust, but might do the upgrades.

Which turbo can I use best for these? anyway to keep stock spool up??

I only have the blue spring and 6.4 banjo bolts. Will this be sufficient for the injectors??

What kind of power can i expect?

Last edited by Invasivore; 06-30-2013 at 11:08 AM.
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Old 06-30-2013, 12:19 PM
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Basically, nomenclature wise, its the cc injected for 1000 cycles / nozzle size. (basis, stock is about 135cc - at best).

Stock nozzles are going to be your limiting factor on power. They only flow so much fuel in an injector cycle running over 3k rpm, so in the higher RPM band you will not see much HP gains.

A programmer will be a must, as will be the exhaust system (at least a 4" setup). The turbo will be the key in making the most out of those injectors. (Check the performance thread in sig.)

As for the fuel system, you may need a regulated return and a newer pump configuration. Really won't know how far you need to take it, until you get the pressure numbers under WOT.

Power wise, again check the performance thread. Under a stock turbo upper 400s, with a newer turbo 500+
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Old 06-30-2013, 02:54 PM
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I currently am running 175/75's with a stock turbo, stock fuel system, FICM tuning and ECM tuning. The truck is a beats and I avg 14.5-15.6 mpg's mixed driving. I have an MTW Hybrid on the reloading bench awaiting installation and my regulated return is awaiting installation as well. My suggestion is this, 175/30's, a billet wheel for your stock turbo and a regulated return. You can also run a sump to your factory pump so it's not pulling double duty. You won't be disappointed.
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Old 06-30-2013, 03:46 PM
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You won't see much improvement with stock nozzles but you can send them off and get 30's (my recommendation) but it will be pricey.

You'll want the new MTW PowerMax or the hybrid Minimum if you keep stock Nozz's.

It will be fun to drive but be warned it's the start of a lot of programming and possibly wrenching on it unless you get a perfect Turbo from the beginning.... So if it's your only means of transportation or you can't be without it I wouldn't go down this route, it can get bumpy.

Denny
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Old 06-30-2013, 05:02 PM
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I would stick with the MTW Stage 1 as that one doesn't necessarily require turbo tuning...it helps be it has great behavioral tendencies without tuning.
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Old 06-30-2013, 05:16 PM
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Quote:
Originally Posted by colonel angus View Post
You won't see much improvement with stock nozzles but you can send them off and get 30's (my recommendation) but it will be pricey.

You'll want the new MTW PowerMax or the hybrid Minimum if you keep stock Nozz's.

It will be fun to drive but be warned it's the start of a lot of programming and possibly wrenching on it unless you get a perfect Turbo from the beginning.... So if it's your only means of transportation or you can't be without it I wouldn't go down this route, it can get bumpy.

Denny

you will notice significant performance going from stock injectors to larger barrel with stock nozzles if built and tuned properly. Can also be very reliable if done right.
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Old 06-30-2013, 05:46 PM
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I would venture to say that whoever is telling you that 175cc/stock nozzles will not flow much over stock, or that you will not notice much gain over 135cc injectors has not run them before... either that or warren diesel sent me the wrong injectors.

I have had 4 6.0 trucks. All of them have had stock injectors pushed to the max through all the small upgrades.


I can tell a HUGE DIFFERENCE with my 175cc/stock with stock nozzles. My MTW stage 1 even has a hard time cleaning up all the smoke and it looks like a freight train going down the street at WOT on a race tune. My stock injectors would clean up to a faint haze (much less fuel on stock injectors). This is not a good thing... but my EGTs can get up to 1800 on a hard full fuel tune. I only say that because my truck is running on the high side of the amount of fuel. I definitely could use a bigger turbo to help clean up all the smoke and keep the egts down.



I do agree the at very high rpms (like 3500+) you can tell that the stock nozzles are not keeping up with the fuel demand


Also what is a good deal... I know warren sells them for like 600-700 dollars with an awesome warranty


just my .02
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Old 06-30-2013, 06:19 PM
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I wasn't insinuating you wouldn't see much improvement, rather it's a combination of other things required to make it achieve the most from them.

That's a better way of putting it, and it's not a sure thing this tune and that turbo will respond the same way on your truck, especially if it's an 05.

We got the special trucks.

Denny
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