Question: What's the most hp made on s400 frame turbo?

Dmax_Ben

New member
Dec 7, 2016
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Just curious if anyone knows what the record or highest number made on a single s400 turbo!? Just something I've been thinking about today lol


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mike diesel

I'm alright.
Sep 6, 2012
4,005
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36
SLC, Utah
Define s400...

You can go as small as 64mm all the way to 88mm with several different compressor covers and turbine options.
 

IOWA LLY

Yes, its really me
Feb 23, 2007
2,275
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I read in Diesel power that someone made 900 rwhp with a stock turbo, stock injectors, and a stock bottom end. Engine had 300,000 miles on it to. On tune 2 of 5. Stock transmission also.

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mike diesel

I'm alright.
Sep 6, 2012
4,005
0
36
SLC, Utah
I read in Diesel power that someone made 900 rwhp with a stock turbo, stock injectors, and a stock bottom end. Engine had 300,000 miles on it to. On tune 2 of 5. Stock transmission also.

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Exactly where I was going with my original comment.

An s478 is not going to make 1000+hp on a diesel.
 

ikeG

Oughta Know Better
Apr 19, 2011
2,429
128
63
Western PA
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Broviak has tuned some engines on his engine dyno with s400's that were north of 1300. Last one i remember was a 483TCT with the big tw and t4 housing. Street truck engine. A 475 will make four digits on an engine dyno with the right setup.
 

Yellow Jacket

WannaBe Sled Puller
Feb 11, 2009
917
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16
Waterloo, IA
S485 built by JEB Machine has made 1500 fwhp on Haisley's dyno on a Super B type 2.6 engine...Most flywheel HP I've heard of from diesel s400.