[6.4trev]

I really want to do a single swap on my 6.4 powerstroke but I tow fairly often with and want to know the best turbo sizing to go with for it. I don’t want to have extremely high egts but I know it won’t be nearly as cool as the factory compounds keep it. I tow a cat 304 excavator quite a bit which is about 15,000 pounds with the dump trailer it goes in for a little reference. I don’t want to upgrade any fueling as it has plenty of that stock. The truck already is fully deleted, has a full 4 inch exhaust, H&S mini maxx tuner and that’s about it. With the single swap I wanna do intercooler pipes and obviously a new intake so please let me know what you guys have had good luck with towing. Or any info or .02 cents! I’ve searched tons of threads and really only find anything about making big power but that’s not my thing with this truck just want reliability and towing capabilities. ( tho I do like to haul *** sometimes as I am a 21 yo kid . Thank!

 

[RandomForumGuy]

Just curious, why do you want a single? 64mm is a good middle ground size

 

[6.4trev]

Just want a little more simplicity and no vgt. The sound is cool too but I’d really like to have a little less moving parts to worry about failing and drive pressure. What’s a good kit to go with?

 

[RandomForumGuy]

if i was a betting man i would bet there is gonna be alot more failing before your vgt system if you have good driving habits. I would save your money for one of those instances instead. In terms of towing, you arent going to find a better setup than stock. Yes drive pressure is a concern over 40 psi, but if you are over 40psi towing than that means you are driving way to hard hahaha!

stock style aftermarket i would go with pitbull series from sinister diesel and single style aftermarket i would go with an h&s kit. Thats if you decide to run something different than stock

 

[6.4trev]

Okay thanks for the input! And I’ve got some plans for the rest of the issues lol. Gotta pretty long list of things I want to get done to it before anything bad happens. My hpfp went out 3 months after buying the truck and got an entire new fuel system on a warranty even with it modified lol so that’s good I got new injectors fuel pump lift pump and all the lines lol. Off the turbo topic is fass or airdog better or basically the same haven’t really looked into it but wanna get one or the other soon so that doesn’t happen again. ( I also tuned the truck down so it doesn’t try to fuel more than the lift pump can supply again!)

 

[RandomForumGuy]

What mods are you running. stock lift pumps usually can handle a 300hp tune in short bursts. Airdog 2-4g is probably crem de la crem

 

[6.4trev]

It’s got a4 inch turbo back, and a h&s mini maxx, egr deleted too. And when it gave out I had the low boost fueling ALL the way up and the hd300 tune at performance and I was being the 20 year old kid I am and drove it like an a$$hole until it quit out lol. Learned my lesson, going from a 110 hp on a lucky day 1st gen to this was pretty rad lol

 

[RandomForumGuy]

I bet haha! Welcome to the forum. Alot of smart people around these parts. Be prepared for 6.4 bashing posts as they are commonly looked down on around here. I personally love mine and havnt had any major problems. I think the biggest thing is to stay on top of maintenance and drive it like a truck and not a Ferrari (as you found out) haha! See you around

 

[kbnw15]

I'm really confused on how you want to be able to tow all that weight but want to go to a worse setup to do it? The compounds you have are the best for that and then running a VGT turbo if you are just hell bent on going to a single.

 

[RandomForumGuy]

I'm really confused on how you want to be able to tow all that weight but want to go to a worse setup to do it? The compounds you have are the best for that and then running a VGT turbo if you are just hell bent on going to a single.

he literally said why and we literally discussed that vgt is better for towing. Did you even read this thread or are you just pushing empty weight around

 

[kbnw15]

Yes I did read the thread. I apparently didn't come to the same conclusion as you did that he wasn't still trying to make a tool less useful by changing to a single turbo. No need to get defensive man. I didn't even start bashing on the 6.4 like you stated about earlier.

 

[RandomForumGuy]

Even if he was whats it to you? Its his truck and his money. He was informed of what the swap would bring in terms of drivability and he was informed of what would be the best options for which ever way he wanted to go with it. Your comment didnt bring anything to the table that wasnt aready there other than a passive aggressive underhanded jab. It gets tiring after awhile.

Lets play now, what did your comment add to the conversation that wasnt already here?

 

[kbnw15]

Dude that's fine. If my comment didn't bring anything to this thread then your little pissing match you're trying to start sure as hell isn't bringing anything to it either. Good luck OP. Even though me and this guy aren't jiving here at the moment he does know his stuff on this 6.4 platform and is a good guy to listen to. I'll go ahead and bow out of this since apparently my presence is triggering.

 

[RandomForumGuy]

Just trying to keep members from chitting where they eat in which i have to eat as well. If you have a problem with that then send me a pm and we can get you squared away

 

[CrazyS0b]

Lets take a chill pill...

kbnw15 hit the nail right on the head... From the description, we are talking about a work truck/DD therefore a single isn't the way to go. This sounds like a 20yr old that wants the "cool" factor (I had the same idea... So ask me how I know lol). And yes, its his money blah blah blah...

That said, sticking to a vgt setup is really the way to go if you need to tow... You dont need an AD or FASS pump, I dont know where you get the idea that your fuel flow needs are what burned out your hpfp. Your hpfp went bad simply because your hfcm went bad, you dont change fuel filters enough, or you buy poor quality fuel (or a combination). Unless you are really taxing your fuel system, you aren't going to be starving the pump. And low boost fuel isnt going to be what does it, it will be at higher rpm/loads when the injectors are emptying the rails. Low boost fuel is going to cause other issues like washing out cylinders and increasing egts.......

Long story short, the truck will be better to drive with more usable power (for your needs) with a stock style or vgt single turbo setup. Non vgt singles take longer to spool up meaning you are going to be higher on egts. If your point was to make power, I think most of us would still tell you a compound setup is still the way to go... If you were doing this for track/race then we would start talking about single setups.

AAAAANNNNNDDDDDD... If I still had my 6.4, I would have gone a non vgt single setup whenever I decided to build the engine simply because I thought they were kinda cool. But, my 6.4 didnt see a whole lot of heavy towing and I tend to go against my better judgement and learn things the hard way

 

[6.4trev]

I had only had the truck for a couple months when it went out I hadn’t even gotten to an oil change yet lol and the low boost fueling not being the reason my truck gave out makes a lot more sense I didn’t think much into that lol. Would a drop in atmo turbo be something to look at or just leave the turbos completely stock? And be more worried about further bulletproofing the truck like head studs, de lipped pistons rods and what not?

 

[GregWork]

I would spend my money making known weak spots more resilient versus turbo modification given the truck’s mission.