Triples w/ stock fuel

[B.Warning]

Alright so I've been thinking about this for the last several months. I know its been discussed before, but the topic of stock fuel always leads off to somewhere e else.

Let's begin...

What size charger do you think will work while utilizing the factory vgt and 71mm lp? I've read all the threads about triple compounding and know that Jon walker uses a 91mm big brother. But there have been talk of using a s480 with stock fuel. Thoughts?

There is also the thought of over spooling the small lp charger and how to control it. But from every thread on here that I have read comes to the conclusion that if you gate the larger lp charger to say 15lbs boost. The fear of over spooling drops drastically, if the fuel isn't there to drive it.

If we can get something figured out with this, this setup is going on my truck. Thoughts?

 

[Corb@CorbinShipping]

Alright so I've been thinking about this for the last several months. I know its been discussed before, but the topic of stock fuel always leads off to somewhere e else.

Let's begin...

What size charger do you think will work while utilizing the factory vgt and 71mm lp? I've read all the threads about triple compounding and know that Jon walker uses a 91mm big brother. But there have been talk of using a s480 with stock fuel. Thoughts?

There is also the thought of over spooling the small lp charger and how to control it. But from every thread on here that I have read comes to the conclusion that if you gate the larger lp charger to say 15lbs boost. The fear of over spooling drops drastically, if the fuel isn't there to drive it.

And I def agree on gating the stock LP to the 3rd turbo. That is why I would consider a larger than stock housing, so as to feed it more, and be able to keep EBP lower...

If we can get something figured out with this, this setup is going on my truck. Thoughts?

I had the Tow Power Xs, with stock fuel, so, i know stock fuel will light a 76mm with a .81 housing, and make 680 hp.

with that logic in mind, I am getting ready to buy another f450, and put an S375 with a .90 or 1.0 housing on the front of stock turbos, and compare it to how it rolls VS my 71mm atmo f450...

I think that this will be the cheapest, and most powerful "bang for the buck" turbo upgrade... But I could be wrong... LOL I'll be trying it late in 2013. If you try it first, post up results.

And I def agree about gating the stock LP into the 3rd wheel. So as to help alleviate EBP and drive the larger charger a bit more...

 

[TXGLASSMAN]

you need to go back to farming brian lol

 

[superstroked]

This sounds like an awesome idea if it will work! A bolt in remote mount would be even better!!

 

[Breaking Habits]

This guy is getting excited.. Brian and I have been talking about this for a while now!

 

[MINK]

I remember when Jon did it and I wanted to give it a shot with stock fuel - stars never aligned. I would go with a s480/96 to start and see what happens.


My problem now is why not just do stock vgt/s475 setup....hell or even be happy with the 700hp on stock fuel with Elites 72mm. Trips worry me when it comes to reliability which is why I even want to stay with stock fuel....



I'd love to see it happen though!

 

[B.Warning]

you need to go back to farming brian lol

Farming and dirt work is what gets me into situations like this. I sit alone in a cab with to much time for these things to go threw my head over and over again.

This guy is getting excited.. Brian and I have been talking about this for a while now!

You got it man. Its getting done this winter.

I remember when Jon did it and I wanted to give it a shot with stock fuel - stars never aligned. I would go with a s480/96 to start and see what happens.


My problem now is why not just do stock vgt/s475 setup....hell or even be happy with the 700hp on stock fuel with Elites 72mm. Trips worry me when it comes to reliability which is why I even want to stay with stock fuel....



I'd love to see it happen though!

The thing that I'm liking is simply the cool factor. Yes there are proven setups out there for stock fuel. But what's the fun knowing that anyone with a credit card can have the same setup. I'm not one to follow the crowd, just like the exterior mods we do to trucks. All about being different and unique.

Can this work...yes. It has worked, and from what I read, was successful. I understand tuning can be a pita but once its right there shouldn't be any problems to speak of.

 

[B.Warning]

So like mink mentioned...whats the general thought of running a s480/96? From past experience with that size charger I know how they act. I'm thinking that may be the meal ticket.

 

[Dzchey21]

I wouldn't use anything smaller than an 80mm turbo

 

[B.Warning]

I wouldn't use anything smaller than an 80mm turbo

I was hoping you'd chime in.

Do you have a charger in mind?

 

[Matt]

Use an 80/96/1.32 and set the gate or gates up just like Jon did.

 

[B.Warning]

Use an 80/96/1.32 and set the gate or gates up just like Jon did.

Perfect. That's the answer I was looking for.

Now to the oil feed and return. Will the factory feed line flow enough oil to feed the 3rd charger? And is there a plug in the head or block to dump return oil into or am I limited to dumping into the oil pan via a weld in bung?

 

[Fast-6.0]

From what we have experienced with the triple compounding I can offer a few ideas/thoughts.

I would upgrade the thrust bearings 360 thrust in both chargers.

To keep spool up real crisp you could do around an 80. If you could handle a bit of lag you could do an 88.

Triples is a lot of work. You don't wanna have all this work and have a guy with a 72 put the hurt to you. To make worth it rather than just doing a 72, you are gonna need airflow. So you are gonna need to drive the 80 pretty hard. When we did Godzilla the first idea was to just let the 3rd charger cruise along, that thought process was wrong. To make the power you need the airflow, so you need to drive the atmo charger hardest. That's where we started making good power. We dropped to a smaller turbine housing and made even more power. I know everyone says big turbine and housing but I disagree. The larger turbine may be fine but I would downsize the housing. A 96 with 1.32 isn't gonna push an 80 hard enough to flow more than a 72 IMO. You may even want to go to an 87 turbine. You don't have the fuel to run this turbo super hard so you are gonna have to do it with housings and turbine wheel.

Look at the Tow-power setups. The 72 is ripping pretty good, running a higher pressure ratio than the VGT and they make good power.

I will say that we had a bunch of ideas and input from guys when we started on Godzilla, almost all of those ideas were wrong. When we changed our thought process we made power. Run the atmosphere hard.

 

[Fast-6.0]

I would gate from the up-pipes to the hot pipe feeding the 3rd charger so you can push it harder if need be.

 

[Fast-6.0]

Perfect. That's the answer I was looking for.

Now to the oil feed and return. Will the factory feed line flow enough oil to feed the 3rd charger? And is there a plug in the head or block to dump return oil into or am I limited to dumping into the oil pan via a weld in bung?

You can pull off the front of the oil cooler to feed the 3rd charger. We did a bung in the pan.

 

[Pizza pig]

what about a 480 with a 92 turbine and 1.10 housing?

 

[Dzchey21]

I would agree with the most of the posts since mine

You definatly want to drive the atmospheric turbo hard, the harder the better

In theory you just need the big turbo to loaf around but from i've seen it needs to be doing a decent amount of work, this will also keep back pressure lower.

Tadd is right, its allot of work for something that might not work any better than a drop in turbo.

i would do an 88mm turbo if it were me

You all need to keep in mind that jon walkers truck only made that number 1 time on the dyno, since then its never backed it up with track times, or another dyno number to compare.... PLUS we have no idea what total boost is, back pressure, low pressure boost and back pressure ect ect, there is a ton of missing info, so before everyone gets too excited take that into consideration, its nothing against jon but there are really only two trucks who have ever tried it.

 

[powerlifter405]

From what we have experienced with the triple compounding I can offer a few ideas/thoughts.

I I will say that we had a bunch of ideas and input from guys when we started on Godzilla, almost all of those ideas were wrong. When we changed our thought process we made power. Run the atmosphere hard.

Would a trip set up like Zane had on the 7.3 work on a 6.4, 2-62's into the factory HP?

Which would work better as an off-idle daily driver?
A double-62 into the HP or a 3rd large LP into the factory compounds?

We know a 2-into-1 worked on the 7.3 and a triple compound worked for Nos_GTSR on the 6.4. What other options are available for someone who wants as much instant low throttle response VS top end?

 

[B.Warning]

So something with a tighter housing is the way to go. Drive the charger harder since I don't have the fuel to drive it. I got it now.

Unlike alot of you, I'm not out for the big numbers. Its mainly to say that it can be done and have a not so ordinary setup that performs well.

 

[TXGLASSMAN]

So something with a tighter housing is the way to go. Drive the charger harder since I don't have the fuel to drive it. I got it now.

Unlike alot of you, I'm not out for the big numbers. Its mainly to say that it can be done and have a not so ordinary setup that performs well.

this is a big dick contest that your trying to start. Its ok we all know it lol