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I was wondering if anyone has had experience with larger injectors 180cc with 30,80,100 nozzles or 205 with 30/80,100 or even 238 with the one of the three nozzles. I wanted to tow and since I'm not the only one driving it I have a rev limiter of 3200 being it's a manual. I just was curious if basically the larger or smaller nozzles which is better for the lower rpms power
For low RPM grunt, AC 160 with a stock nozzle does great. For high RPMs and getting the whole injector capacity in there, AC 160/100. 100% nozzle can drain up to about 175 CCs of fuel in the allotted time at high RPMs - but the higher-capacity sticks need bigger nozzles to do the same.
So at a lower rpms being you have more time to put fuel in the larger nozzles are not needed but if I wanted full use I'd have to go with 100% or even larger on the sticks above 180. Now with a larger nozzle does this affect low end power because of difficulty timing it or does it improve or not much affect at all? I'm just not use to the newer motors I built two idis. But those were a whole other beast
Once you get past the 30% nozzles, tuning for a good idle and low emissions gets tricky - sometimes requiring a live tune. I've had emailed tunes and I've had live tuning. Live tuning has made "Stinky" ride like a well-running stocker... until I stretch my leg - then he drives like A Cadillac on steroids, crabbing his *** to the right.
I have been looking at 180/100 as well. It sounds like this would be a good injector for towing and fun. The only caveat is to spend the time and money on live tuning.
Okay well i will get it love tuned sometime down the road probaly about a yr after I get the injectora. IL make it a Lil vacation trip the gf will LOVE that lol
My injectors arent on your list, but i just recently got 160/30s and last month i towed my 30' gooseneck trailer with tractor, 4 wheeler, and a load of lumber (approx 11k lbs) along with a few loaded ice chests in bed and truck full of gear 400 miles to my deer lease in north La. (200 one way). Now we dont have any mountains here in La like alot of you folks do, but with the hills that we do have and the distance traveled it towed like a beast in a dream. Very powerful and smooth as silk. With setup in my sig it never went over 1100*F while pushing 30lbs boost (wastegate setting) with cruise control to maintain 65mph. I am overly ecstatic, happy, thrilled with how the truck performs now. Anyway...just my two cents...
Look at my SIG (its an OBS but same concept) I could maintain 70mph up a 5% grade and still had grunt to pass some cars going up with an 8xxx lbs travel trailer and egts stayed at 1180°. I love how it works all around .
Once you get past the 30% nozzles, tuning for a good idle and low emissions gets tricky - sometimes requiring a live tune. I've had emailed tunes and I've had live tuning. Live tuning has made "Stinky" ride like a well-running stocker... until I stretch my leg - then he drives like A Cadillac on steroids, crabbing his *** to the right.
I was wondering if anyone has had experience with larger injectors 180cc with 30,80,100 nozzles or 205 with 30/80,100 or even 238 with the one of the three nozzles. I wanted to tow and since I'm not the only one driving it I have a rev limiter of 3200 being it's a manual. I just was curious if basically the larger or smaller nozzles which is better for the lower rpms power
Here's a good explanation & comparison of hybrids to 160's.
I've towed our 5th wheel with Swamps 175/146 (stock nozzles) injectors for about 10 years. They have been great injectors. Being single shots I was able to still use the stock HPOP and maintain 3100 psi when the tune calls for it, plus a small bump in MPG's. but without the Van Turbo and DI intercooler I would have had to back off the throttle towing on higher grades at lower rpm's to keep the EGT's in check on some of the tunes.
Towing with 160/80's has been good as well, but it's all in the tuning. If you don't want to deal with the time it can take to dial in 100% nozzles then 80% nozzles are the way to go. Much easier to tune for. Well, it's all much easier now that you can receive tunes via e-mail. A few years ago we all just waited impatiently for the UPS truck to show up.....
Hybrid 238/80's would be the next I would consider putting in the F-250. For towing, they look great.
But again, it's all in the tuning. You don't want to run 450 hp towing, you'll brake stuff - expensive stuff. Towing tunes that keep it in the 350hp range are the way to go........Then if you have a PMR's you need to adjust for that as well.
With respect to my friend white Buffalo, I would counter that light towing might allow you to get in the neighborhood of 300 HP, but heavy towing in the mountains would need to be backed down to about 250-275 HP. The engine is capable of only so much grunt before heat gets you. If one is on the flat, the big HP numbers aren't such a big deal because they won't be sustained. If you put 400 HP to the floor on a 7% grade for 10 miles with a 5er behind you, you will leave a contrail of 7.3L parts and oil... maybe even some fire for good measure.
08-05-2016, 09:48 AM
