I have 160/30, but the conventional wisdom of late indicates 160/80.

 

 

My understanding is that 160/XX are easier to tune. Anything bigger it gets more difficult. From what I've read on the forum over the years 160/80 or 160/100 are preferred over smaller. Single shots are noisier than splits but singles get a hair better fuel mileage. Hopefully those with more experience will jump in shortly

 

With your built trans you could probably go bigger, your only limitation is probably the .84 AR housing. I would go with 180/30 like the manufacturer recommends.

 

 

They will.

My truck wouldn't fire under 40F unless I plugged it in. New injectors fire right up at 0F with one glow plug cycle, not plugged in. Still runs like **** until it warms up but man is it nice hearing it start!!

 

 

About 20cc better . Seriously though...

I don't remember where I read it but IIRC the "rule of thumb" is 2HP/cc (that's overall...not for each injector). Using that basis you're looking at 40 more horespower than 160cc injectors which is 40 more horsepower than stock 140cc injectors which have ~50 more horsepower in them with good aftermarket tuning (depending on engine health and injector condition). Theoretically that puts my 160cc injectors close to 100 more HP than stock (injectors and tuning) which is a bump of 40%...theoretically.

"Performance" is a subjective term and it involves more than just power. Tuning plays a big part in how power is delivered.

There's plenty of good reading on the subject and agony that will go along with the knowledge gained. Here's one I came across that is the same vein as what you're asking: https://www.ford-trucks.com/forums/1...injectors.html

Everybody has their criteria and what is acceptable to one is not to another. The only caveat I will say is that P.I.S. has changed ownership since that thread. I bought injectors from them in 2017 and I will never do business with them again.

Besides experiences shared by those of us who have already gone down this road talk to vendors too. Find out what has been successful for them in what you are interested in (injector builders and tuners). Everybody has success with some combo (size, nozzle, tuning) and you may find the ones who have it dialed in for what you want.

Just my .02

 

 

Full Force was a close second choice when I was looking for injectors.

Did you buy your Hydra with the tunes on it or did you use a laptop to "load" the tunes on on your Hydra? If you bought it with the tunes on there I think they're stuck there unless you send your Hydra in but I'm not 100% sure on that.

Reflash - send in your Hydra and have the vendor load the tunes then send it back to you.

Vendors will have "standard" tunes that they can tweak for your truck and are for stock injectors. If you have a special request that requires more effort on their part or you have deviated from a pseudo-stock-ish setup (e.g. single-shot injectors) that requires more R&D time then you are in the "custom" world and the price goes up.

Your Hydra is easily programmable by you so there should be no need to reflash your Hydra (except for maybe the issue above). The vendor will encrypt the tuning file(s) with your Hydra serial number and send (them) it to you. This gives you the flexibility to load the tune(s) yourself in your driveway (or anywhere you have internet connectivity). This prevents any down time and lets you load/move your tunes to your liking.

Each tuner has a different policy. Some will update your tunes if you buy something new (and maybe only if you buy the parts through them), some only do it for a certain amount of time after you purchase the tunes, and some will do it longer than that.

PHP is the one who has the platform (Hydra) but many other tuners write for it too (Gearhead, JeliBuilt, 1023, Swamps, etc.) so the world is your oyster.

NOTE: if you bundle your order (injectors and tunes) be sure to find out the specifics. When I bundled mine the vendor was the purchaser so any revisions/issues had to go to through the injector shop since they "purchased" the tunes. I have since resolved that issue but it was a frustrating year-long issue. I would have gladly ponied up the extra dough to save myself that headache.

 

 

This is correct. Use the Hydra Flash software you downloaded when you moved the tunes around in order to upload/replace existing tunes.

 

 

From Full Force's website:

Reburn my chip for free: If you have a TS or hydra we'll put our tunes for the injectors on your chip. Leave the add a chip to no thanks. Then select "free reflash" meaning you send us your chip (TS or Hydra) and we reprogram and send it back to you.

Looks like they'll give you at least a couple of tunes for free for whatever injectors you buy as long as you send them your chip/Hydra to burn them directly to your tuner.