Drive pressure on twins; stock HE351/S400

Best towing setup I've had. Mine is a 3b on the bottom not the s400. I two with 200 horse injectors with out any problem You can get it hot but you've got to be trying.
 
I thought the original stocker over S400 twins came with a 71mm compressor S400. Has MPI upped the ante on their new kits to 75mm?


If I supplied the turbo it was always a 75mm. I don't think I've ever had a S471 in my shop.
 
Best towing setup I've had. Mine is a 3b on the bottom not the s400. I two with 200 horse injectors with out any problem You can get it hot but you've got to be trying.

I think, though, that trucks in your year range work better with bigger injectors than '06-'07s. I don't know, maybe that would work fine.

To someone contemplating a stock/(whatever) twin set-up as we're discussing: I would suggest having a detailed conversation with a known, knowledgeable person about the total system - components, programming, and intended use. The total set-up is dynamic; change one thing and it effects some others.

I don't intend this thread to be anything other than an observation on DP with the set up I have, and as information for those interested in one similar.
 
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