Home made IHI/S475 twins

bonescarolfi

bonescarolfi

New member
Sep 3, 2008
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Marshfield WI
A few days back I finished building twins for my truck. I think it turned out pretty good. Not as clean as an MPI kit but still works really well. Its just a standard S475 with the stock IHI but she runs pretty hard. Definitely more power thats for sure. Im still kinda scared to give it 100% throttle on the big tune. I love how it sounds though and its nice and quiet while cruising even with the hood stack. Now i just need some better tires and tweak the suspension a bit so I can actually hook up.
 

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paint94979

paint94979

Beer Nazi
Sep 18, 2006
11,715
8
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bonescarolfi said:
A few days back I finished building twins for my truck. I think it turned out pretty good. Not as clean as an MPI kit but still works really well. Its just a standard S475 with the stock IHI but she runs pretty hard. Definitely more power thats for sure. Im still kinda scared to give it 100% throttle on the big tune. I love how it sounds though and its nice and quiet while cruising even with the hood stack. Now i just need some better tires and tweak the suspension a bit so I can actually hook up.
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looks really good man:D
 
KEVINL

KEVINL

Well-known member
Jul 4, 2008
1,431
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Phoenix, AZ
Very cool

I am thinking about buying some POS to drive for a little while and building my own twins it is so much cheaper
 
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brown bear

brown bear

como estan beeches!!
Mar 31, 2009
199
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Durango CO
Nice man looks pretty good it makes me think to go with twins every time i hear how good they sound. well see what happens after i install my triple disc here and a few weeks
 
TrentNell

TrentNell

Finally underway !!!!!
Jul 7, 2008
7,543
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slc tuah
Looks good ! Hood stacks are sweet :D I should have my Grand Rock hood stack AKA = "beauty stack " by the end of the week I will post up some pictures of it !
 
SmokeShow

SmokeShow

Well-known member
Nov 30, 2006
6,818
34
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Lawrenceburg, KY
man, I've been jonesing for twins lately. It's way, way down the list but I'd sure like to give 'em a whirl at some point.

Very cool you did it yourself! :thumb:
 
wsmithduramax

wsmithduramax

<--- Home Made!
May 4, 2009
474
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16
Windsor, CO
Very nice job, looks awsome in my opinion. Im gonna do mine someday soon but is a few steps down on the "to do list" but i made a bracket for the IHI turbo that will bolt right up and then will allow me to just weld a pipe to it and should look fairly clean. I cant wait to do the work. Let see some video of this running:thumb:
 
R

RyanZ06

New member
Oct 6, 2006
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what is the consensus on running a stock Lb7 turbo with a S475/S480 ? Is the stock turbo limiting or are you waste gating around it ?
 
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