Thinking about going back to Vgt.

[ford rules]

Why not throw a fresh hpop in it and then see how you like it, if you can't hold HPO then a VGT isn't gonna help anything. Seals for the 366 and a hpop are cheaper than a big VGT. Don't forget these big vgt's aren't proven for long reliability just yet...

 

[strokin6L]

What do you consider long reliability? I believe there's guys that have nearly 40-50k on some early build 68's from MTW already with no issues.

 

[smokedout250]

I actually don't I can get the mount up pipes will be the hardest to find but I'm sure I'll be able to get them

 

[SmokedF747]

I'm holding 3.6v on my 300/100's built by mpd on my truck and I run pretty damn cool maybe 1350 at most? and I'd love to go to a RCD pump II that can aid 295cc's I believe it was, but you see, the way my mechanical skills are set up...

 

[smokedout250]

My injectors aren't great but they are working well for me... I think it's a week pump causing my issue. I will like the power but... It needs to do more than be a play truck!

 

[SmokedF747]

hahaha mine is just a daily driver, and i've made the bonehead mistake to try and have a show/fast truck, man is that expensive lol wait till you see what I have next week! haha

 

[MrOneEyedBoh]

This thread is of interest to me... I plan on getting a 68mm but now as of late I'm thinking of going non-vgt. Both have their pluses and minuses. But as Charlie knows, I'm still reading on what I want to do. I'm getting MPDs 190/75s next week. Now I'm just pulling fuel until next April when I'm going to buy myb trans and turbo. So I have time still

Interested to see what you decide...

 

[KCTurbos]

Why not throw a fresh hpop in it and then see how you like it, if you can't hold HPO then a VGT isn't gonna help anything. Seals for the 366 and a hpop are cheaper than a big VGT. Don't forget these big vgt's aren't proven for long reliability just yet...

Sorry... but I found this funny and had to point it out... You are questioning the reliability of a different turbo when the one in question of being replaced has not been reliable??? What deems something "reliable"


The gt4094va turbo has been out for many years and has proven to be very reliable. The duramax guys have had a "stage 3" turbo for years. Most 6.0 stage 3 turbos built are some sort of variant of that turbo and will be just as reliable as that.


All turbos can fail and leak... just like the ol reliable s366

 

[smokedout250]

The Vgt offers a wider range of abilities compared to the non Vgt... That's why I'm looking at switching back... Don't get me wrong you can't stop a non Vgt once it's been spooled.... But I really miss the low end of my Vgt... I want to be able to back up to any trailer load up and go, but I also wanna get there unhook load a tune and have a power house... I can not do that with my 66

 

[KCTurbos]

The Vgt offers a wider range of abilities compared to the non Vgt... That's why I'm looking at switching back... Don't get me wrong you can't stop a non Vgt once it's been spooled.... But I really miss the low end of my Vgt... I want to be able to back up to any trailer load up and go, but I also wanna get there unhook load a tune and have a power house... I can not do that with my 66

IMO that is a perfect reason to go back to a vgt... or jump to compounds



Do you still have any certain power goals in mind also? IMO it sounds like you would be happiest with a medium sized VGT as long as it still meets your goals. That is why I am curious on what kind of power you still hope to make with the charger. You don't wanna go too small and not make the power that you want... on the other hand you don't wanna go too big and end up with a loss in drive ability similar to the s366

 

[smokedout250]

600-650 has been my goal... Compounds have been an idea as well... But can't justify 5-6k... Plus Vgt sounds cool lol

 

[strokin6L]

My setup is there within your 600-650 goal. I have a KC 68 with the .72 compressor cover with 190/75's. It runs pretty well. IMHO....I don't think this setup can tow that much without getting pretty hot....even with fuel pulled. I bet max would be 6k maybe. How much do you plan to tow?

 

[KCTurbos]

600-650 has been my goal... Compounds have been an idea as well... But can't justify 5-6k... Plus Vgt sounds cool lol

Sounds like a stage 3 turbo will fit your needs pretty well. With 205s you should be well into the 600hp range.


With that large of nozzles tuning will be a little difficult without having to sacrifice something. Those 150% nozzles are going to dump a ton of fuel fast!!! If you are going away from a non-vgt turbo then you might think about a slightly smaller nozzle like 75% or 100% to help control your egts and fuel dumping abilities down low and while cruising.


I have guys that tow upwards of 15-20k with a KC 68mm stage 3 and larger injectors... it is all in the tuning and rpms. Your truck is not going to be happy towing at 1500-1800 rpms... you wanna keep it more around the 2000-2500 rpms to keep the turbo in a more efficient area of the compressor map.

 

[strokin6L]

Didn't realize guys were towing that heavy with the 68 Charlie...that's good to know! Think maybe i'll look into a tow tune and a good street tune to have.

 

[smokedout250]

Sounds like a stage 3 turbo will fit your needs pretty well. With 205s you should be well into the 600hp range.


With that large of nozzles tuning will be a little difficult without having to sacrifice something. Those 150% nozzles are going to dump a ton of fuel fast!!! If you are going away from a non-vgt turbo then you might think about a slightly smaller nozzle like 75% or 100% to help control your egts and fuel dumping abilities down low and while cruising.


I have guys that tow upwards of 15-20k with a KC 68mm stage 3 and larger injectors... it is all in the tuning and rpms. Your truck is not going to be happy towing at 1500-1800 rpms... you wanna keep it more around the 2000-2500 rpms to keep the turbo in a more efficient area of the compressor map.

I haven't up dated my sig in awhile I actually have 75% nozzles now

 

[Josh@DirtyDiesels]

My injectors aren't great but they are working well for me... I think it's a week pump causing my issue. I will like the power but... It needs to do more than be a play truck!

Rykan just said that the injectors were a complete mess. Just like he and craig said, there is only so much you can do and lots of the time you can't work with it. If you want to do it right get new injectors and a thumper I pump or hell, even a good stock pump. Bet the truck will run well then. I almost think you have to have something else up. My truck with these 250/75s and an abused stock pump runs like a raped ape. It falls on its face a bit way up top but from 2000-3500 rpms it pulls like you wouldn't believe on a stock pump

 

[smokedout250]

Rykan just said that the injectors were a complete mess. Just like he and craig said, there is only so much you can do and lots of the time you can't work with it. If you want to do it right get new injectors and a thumper I pump or hell, even a good stock pump. Bet the truck will run well then

And that's the plan... I'm going to uprade the hpop, but I still have to do something out the turbo that is taking a dump on me... The injectors are working fine right now. Me and Rykan have discussed a route for when we are ready. But the two biggest issues I have now... Are turbo and hpop... I don't even have 3k on the injectors from Rykan and they are working awesome not even a stiction issue yet... Still junk tho and I will get them taken care of


Sent from my iPhone using Tapatalk

 

[ford rules]

Put seals in the turbo and put a pump in it.

 

[Breaking Habits]

Stage 1 Thumpers are in stock and ready to ship if you want to address your HPO issue!

 

[smokedout250]

Stage 1 Thumpers are in stock and ready to ship if you want to address your HPO issue!

So Jared... What's the better pump... I'm running 205/75s but plan to go at least 225s...