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A/R housing size selection

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9.9K views 12 replies 7 participants last post by  cumminsprerunner  
#1 ·
Alright, alright, alright!

Recently acquired a S467/83/.90. I will be having it made into a 87mm turbine. Now the question is should I run a bigger A/R housing? say a 1.00 or 1.10. The truck will not be a DD but may hit the street every once in awhile. Will manly be a play truck doing pulls and drag racing. Currently the truck has 50 over S&S injector and Stock Cp3 but will be Duel pumped and either 150 or 200 over injectors. Transmission is a Suncoast with a triple disk converter that I believe is stock stall. I'm hoping to make mid 800 to high 800s buts wouldn't mind more. EFI Live will be handled by Ryan.

Thanks in advance, Hunter
 
#2 ·
You planning to run that S467 as a single, or in a twin setup? Only curious since you are wanting to run the 87mm turbine wheel. Most folks stick to the 83mm wheel for a 5.9L if using it as a single, and still make near 900 WHP with it. Seems the 87mm wheel would make that turbo much more laggy for no real good reason given your power goal.
 
#3 ·
Running as a single for awhile. The 87mm turbine comes form talking to Ryan Milliken. Simply put, he's my tuner and trust him with that. Lag is really not to much of a worry as I will not be DD this truck. If It makes 900 or more, so be it. I'm sure it won't bother me haha. 8mid to high 8s in power are really just a low set goal as I know Ill have the fuel for far greater with duel fuelers and 150s or 200s.
 
#4 ·
Well, heck... In that case, if you're not worried about lag at all, and are looking to make as much HP as possible, go with the bigger housing. You're going to have to swap the housing out anyway, if you go with the 87mm wheel.

At that point, the only concern will be whether or not you can get the turbo to light while leaning against the torque converter stall speed. Could always use some nitrous to assist if it won't light on the line.

In the end, I don't have any experience with running a turbo that large as a single, so I wouldn't even begin to know if it would light on the line. Would depend a lot on converter stall speed, tuning, and atmospheric pressure will play into it, as well (if up high in elevation, it will be even harder to light).
 
#6 ·
Just stick to the .9 housing with the 87 turbine. Even spinning 4500+rpm you're not going to hit the choke point of it.
 
#7 ·
If you plan on using this turbo in a compound setup, I would just leave it alone. I run a 67/83/.90 and make nearly 900 with only 60% overs and a single stroker pump.
 
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#8 ·
Do you have any idea what your drive pressure is like?
 
#12 ·
87/1.0 is more like 6.7 territory. 87/9 would be fine for quite a bit of ponies on a 5.9.
 
#13 ·
I'm using a 67.7/87 .90 as a single on my 6.7, it loves to light right up.