twin turbos

[mike diesel]

I had what I said backwards. Big turbo fed lntercooler then fed into small turbo then into engine. Either way, still wierd.

 

[Chanzilla]

So would the spool time be like a single 475 or whatever the atmospheric turbo is?

 

[JDub]

Intercooling between stages can be quite effective, as long as the turbos are sized properly. WOP built quite a few kits that intercooled between stages, both on Cummins and Power Stroke applications with great success.

 

[mike diesel]

So would the spool time be like a single 475 or whatever the atmospheric turbo is?

No, spool time will essentially be whatever the small turbo is.

 

[Chanzilla]

Ohh okay. That is slick looking.
I've never seen a setup like this on the market

 

[mike diesel]

Yea that truck is pretty nasty. I've seen it run quite a few times at my local track.

 

[JDub]

This is how it was originally configured, but the engine and turbos have since been moved to a different chassis, there has also been a water to air added

https://www.youtube.com/watch?v=-EBTU-hbzys

 

[DieselmafiaLLY]

Subd

Sent from my SAMSUNG-SGH-I537 using Tapatalk

 

['strokeThis_'07]

Yes, I worded it weird, but they mount big charger straight to manifold. So it gets exhaust gases first, unlike duramax setups.

No they don't. I've seen this maybe a handful of times...

Typical diesel compounds are the same setup regardless of what engine they are on; the small turbo (secondary, manifold) is mounted directly to the manifold (or pedestal in Duramax/Powerstroke engines) and receives exhaust gasses directly, which then go on to the large turbo (atmosphere, primary, whatever you want to refer to it as) via a "hot pipe" and then the downpipe. Air comes in via the primary and is sent to the secondary and into the engine.

Triples (at least in the best setups I've seen) basically take the large primary and replace it with two smaller ones, although those two smaller ones can flow more than the large single. Of course guys have run two large and a small as well as three identical size turbos in trips as well...

Cooling between stages can equate to lower temps, not higher, assuming it's setup correctly.

Wide Open Performance is the only company I've seen offer inter-stage cooling on two triple setups; one on Kirk's 12v and the other on JD's 06 dually that ended up on two other trucks. And hopefully a third real soon

And of course we typically have had the secondary mounted over the primary, so it's a 64 over a 480. But last two years more and more have been mounting the primary over the secondary (yet they still call it a 64 over a 480 even though the 480 is physically over the 64....never has made any sense to me.)