S475 and 400/xxx Injectors - Ford Powerstroke Diesel Forum
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post #1 of 12 Old 01-18-2014, 08:21 PM Thread Starter
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S475 and 400/xxx Injectors

Ok guys, i'm looking for some help on this. Basically I am trying to get a game plan together for the next stage of my build. I already in the works of getting Carillos, coated pistons, girdle, etc. so I have that side of things covered.

What I need some help on is my choice of turbo and injectors. I am looking into the Swamps 74mm Sledgehammer or a S475. I know the Sledgehammer is basically bolt on since I already have a T4i mount. Now, me personally, I would rather have the S475 BUT it is a T4 foot so it wouldn't bolt straight on. My questions are, 1. Which turbo would be better? and 2. If the S475 is the better option can I drill out the bolt holes to mate it to the T4i and also will the darn thing even fit on a OBS.

Next thing is injectors. I am basically in the same situation as with the turbos. I have pretty much picked out 400/200s or 400/400s. I have read that the 400% nozzle is more prone to cracking and/or blowing away. Is this a common occurrence or not? Will I be gaining anything over the 200% nozzles? I have a "go big or go home" mentality so I am already leaning towards the 400/400s but I want your opinions also.

Thanks in advance!
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post #2 of 12 Old 01-19-2014, 05:29 AM
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What are your plans with the truck? I would personally look into twins considering how big those turbos are. As far as injectors, At that point I don't think 200% or 400% are going to be all that different. I think I would go with 200% for the reason you stated, they would be less likely to crack etc


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post #3 of 12 Old 01-19-2014, 08:10 AM
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the guy to talk to would be marty (from marty's diesel), he's not on here as much as he used to be. i believe he was running a s475 and 400/400s. I do remember him saying it was too much for a street truck. I think he went don to 250/200s and i can't remember the turbo he was using.

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post #4 of 12 Old 01-20-2014, 08:11 PM
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Is this a street truck or dedicated off road use? I would do 200's for street ability

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post #5 of 12 Old 01-22-2014, 04:56 PM
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He had a 475 and 400/400s and exactly as terry said it was too much to be on the street. The turbo was laggy and VERY hard to tune. He was going to do compounds if he was gonna keep them but down sized and dropped turbo size for a more useful truck.

If your stuck on bigger then 250/200s go with 300/200s. 400% nozzles are prone to cracking and very hard to tune even with live tuning.

Also a 475 will require cowl modifications to fit in an OBS truck.

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DIY INTAKE - HYDRA CHIP - MARTY'S E-FUEL - 250/200s
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You are so smart Frank, I dont care what Terry says.
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post #6 of 12 Old 02-01-2014, 11:04 AM
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I would lose the t4i mount. it is limiting your selection and increasing the cost of your turbo choices
how fast do you want to go? 200% put our trucks in the 12s

1997 F250 rclb 4x4, Comp910s, SRP1.1, Irate T4 s468,FullForce 350/200, homebrew efuel with i̶n̶ ̶t̶a̶n̶k̶ ̶a̶e̶r̶o̶m̶o̶t̶i̶v̶e̶ ̶1̶1̶1̶4̶2̶ A1000 5/8" drawstraw, Diesel Innovations fuel rail feed fittings, balljoint D60f Detroit Locker, zf5 sachs K70263-01CB ceramic clutch , Grizzly locker 10.25, 315/75/16 Wrangler MT/Windowed 7.3 Oct 9/14
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post #7 of 12 Old 02-03-2014, 07:02 AM
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What do u want for ur injector now
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post #8 of 12 Old 02-03-2014, 10:54 AM Thread Starter
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So, I'm going to go with 400cc/200% injectors and a Swamps BFE. The truck is a street truck but not a daily driver. I can handle losing some drivability. hlzceller, shoot me a PM and we can talk.
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post #9 of 12 Old 02-05-2014, 12:43 PM
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Idk How can u tell me
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post #10 of 12 Old 02-05-2014, 12:48 PM
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Did u get it
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