I am starting to see that there are several companies currently R&D twin turbos setups for the 6.0L PSD. What are the pros and cons of this setup? Is it worth the extra $$$ or stick with the single turbo?

 

We are actually R&D'n Twin Turbo setups.. There are 3 types of Dual Turbo setups..

- Compounds which are side by side turbo's.. On the 6.0 it sits about 4" over the top of the Alternator.

- Twin which are in Parallels..

- Sequentials where one turbo cuts off at a certain RPM and another comes on.

The advantages to dual turbos is the ability to provide higher boost, quicker spool times and lower EGT's..

 

Ok, thanks for the info, my bad for posting all these questions, I am really learning a alot here on FTE! Keep up the good work!

 

Don't be sorry There are no stupid questions.. Only those that go un-asked.. We are here for you.. For everyone.. We all pitch in to make this one of the greatest places to gather information the 6.0 Lot of us (not me) are FMC Techs, some are Diesel Experts, some are good researches and some (like me) are just backwood Rednecks who like to trash things and tear it apart to see what happen lol

 

Yep, learn little lessons to pass on like don't mix a big turbo, NOS and Water/Meth and let it shift at 4400 RPM's or it may be sitting outside the track area waiting for the tow truck to pick it up in the morning while your stuck riding home in your buddies Dodge listening to 1 1/2 hours of crap about Fords.

 

Uh oh PWR, i missed out on hearing what happened. Care to tell or PM?

 

As with anything else on the board, what do you want to do with it? If the goal is some sort of racing (where money is no object) then a two turbo setup would be the way to go as it will be the best engineered setup. Personally I think its a big fad because the 6.4 hit the streets with it and its the thing to have. In reality a properly sized single turbo can give you the same peak boost that a dual can but will be slightly slower spooling up. I think the real advantage would be for us guys with the manual trannies, if youve got an automatic the torque converter helps you into the sweet spot earlier and allows you to be in the boost on launch anyways.

 

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Slightly? How about MAJORLY. If you use one turbo that is comparable in size to the secondary charger on a compound setup, then you (especially with a 6 speed) will have a much less streetable truck. Sure you can still drive it, however it will spool very slow and throw out tons of smoke until it lights. The whole purpose for compound setups in a street truck is for more drivabilty and quicker spoolup. There were kits in the making before a 6.4 was even known about, even for the 7.3 as well. Take a look at this awesome looking BWD compound setup..

http://www.shop.blackwidowdiesel.com...&productId=301

 

I have no problem with the rate that my boost comes on when I am above 2000rpm. If you want to spend ~$1000 to cure that then you have money to burn.

 

Actually there are times when that single turbo doesn't spool up quick enough(as far as safety goes in and around traffic and I'm not talking about hard launches either). There is a stretch of I-24 round Chattanooga that slows down to 30 mph when you go round knickerjack and when I'm pulling a 4-horse trailer, spool up is very very very slow and when I'm hauling horses I'm conversative with throttle but not grandpa conservative, but that's what it amounts to with regard to response time. I don't know if a dual would help with that or not, something worth asking about when I'm up in Hendersonville, but there are times when the stock just doesn't do it at a safe enough pace, it'll get there, but there are times when myself and the horses may not have made it to the show. Now you also have to remember, for the most part the people that buy these trucks now may never have the problem that I have and like everything else made on assemply line it has to be done in such a way that "one size fits all" which for 90% of the time works, I would rather go a route that might help me and my horses(one of the ways I make a living(the biggest one actually)) get there more efficiently and more importantly safely. For some that "money to burn" might be true, but there are times where it's just making it fit you better. I truly don't have money to burn, but I think of it as an investment into a tool that I use for business, not really for dragstrip stuff like majority of people though(I know strange a person doing that not to increase 1/4 mile time, but to help with doing work). Just my thinking on it, right or wrong.

 

then you also have no problem with people passing you.
you just cannot have a streetable truck that makes the HP of a compound setup with only a single turbo. you will sacrifice low end /top end or both.

you could add a butload of nitrous i guess

 

Sequentials start out with one turbo at low RPM. Then the other one kicks in at a higher RPM. The first turbo does not cut off. Anyway, that is how the sequential twins work on my RX-7.

 

Since we are on the subject, here are some pictures for you guys

And no, these do not even come close to clearing the stock hood.

The mockup will be finished this week; hoping to have them running on the newest engine within the month. Also, excuse the picture quality...had to take them with my phone today while at Bean's.

 

holy cow matt you weren't kidding about how far it sticks up. i was trying to picture it when you were describing it last night, but now i can see.

btw, can you email me a receipt for my girl's card when you run it along with an updated invoice ?? thanks bro

 

Yeah, the bottom of the compressor housing is dead even with the sheet metal of the hood.

And yes; I'll send you a scanned copy of the credit card receipt with the e-invoice and the original copy with your tuner