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Which BW s400 Series? Jose? Martin? Lil John?

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Old 11-09-2013, 07:47 AM
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Originally Posted by 89ROC-Z
This is exactly what I needed to hear! Someone with a very similar set up that is spooling a 96/1.32 by 4100. What rear gear you have? Even if you have 373's I think my added cubes will make up for my 389's.

I'm either going with the 11 blade billet s475 96/1.32 for ~$1k or $1150 for the 92mm, or the 7 blade billet s476r 96mm for ~$1250. So I have it down to three lol!

Which one would you do if you could do it over again stephen?
Mine is the standard cover turbo unit. I have the stock untouched rear with the 3.42s in it. If I had it to do over and money wasn't an object and was staying with the same size turbo I would do the billet 76. But if I upgrade when I get a forged engine done it will most likely be the 84mm etr that Jose told me is the new bad *** unit.
Old 11-09-2013, 07:41 PM
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Excellent thread, lots of good info. I too, am looking to go turbo, still gathering info.
Old 11-09-2013, 10:11 PM
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I agree with the race cover being a necessity with the billet wheel or leaving the cast wheel in it with the race cover.

Although I believe the true S476R like I have that Jose builds already uses the race cover.
Old 11-11-2013, 12:26 PM
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Originally Posted by Martin@Tick
I agree with the race cover being a necessity with the billet wheel or leaving the cast wheel in it with the race cover.

Although I believe the true S476R like I have that Jose builds already uses the race cover.


Yes the race units come standard with the race cover. Also the car that went 5.04@139, this weekend went 5.03@140+.
Old 11-11-2013, 01:00 PM
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So all of the s476R's have race covers?
Old 11-11-2013, 01:42 PM
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Originally Posted by slowlsx
So all of the s476R's have race covers?
Our Race units when ordered and designated as race units they include them. Price reflects it.
Old 11-11-2013, 02:00 PM
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I run 1 of Jose's s480/92mm/1.1 T-6 turbos. On they dyno is made within 3psi of full boost(16psi)at 3200 rpm.
my car is a 5 speed and on the street it is "right there" when I stand on the gas.
the cast 80mm, or the 76r, with the 92 turbine is awesome on a stick shift 6.0
Old 11-11-2013, 07:45 PM
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Thanks for the info guys. It's really making my decision a lot harder now! I won't go past a $1250 turbo, that's already $50 more than I budgeted for.

Does anyone know if the 83mm/1.10 s475 will meet my 800-900 goal? My power goal is more flexible than my budget
Old 11-11-2013, 07:56 PM
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Both turbos I mentioned are under $1200 from Jose
Old 11-11-2013, 08:16 PM
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I should have opened my eyes lol!

I see the cast 76 92mm is 1200hp, while the cast 80 92mm is 1050hp. Both are the same price so I think the 476r in 92/1.10 is what I'll get
Old 11-12-2013, 09:15 AM
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The 80/92 is really a killer piece indeed like 3 pedals mentioned. Makes awesome power and spools quick.
Old 11-12-2013, 11:19 AM
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Originally Posted by 3pedals
I run 1 of Jose's s480/92mm/1.1 T-6 turbos. On they dyno is made within 3psi of full boost(16psi)at 3200 rpm.
my car is a 5 speed and on the street it is "right there" when I stand on the gas.
the cast 80mm, or the 76r, with the 92 turbine is awesome on a stick shift 6.0
See here is another awesome result with the 92mm turbine. I don't know why some people believe it is impossible that I made 15psi by 37-3800 rpms on my 5.3 with this turbine. I guess they think it spools more like the 96mm turbine.

Edit: that 1050hp for the 80/92 is a misprint I believe.
Old 11-12-2013, 04:54 PM
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What's the benefit of a billet compressor wheel? Does anyone have a compressor map comparing the billet wheels to the cast wheels?
Old 11-12-2013, 05:14 PM
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Shouldnt all of the cast 80's with stock covers all be rated at same HP level? Isnt the HP rating reffering to what the compressor wheel can handle in terms if power... the turbine wheel measures back pressure so it shouldnt effect what the turbos are rated for.
Old 11-12-2013, 05:58 PM
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Yes and no. If you look at the air that can go by the turbine wheel, you really need both parts in the equation. If you can't flow it past the turbine, you could have the largest compressor in the world, but if the turbine becomes a bottleneck it won't matter.
Old 11-12-2013, 07:31 PM
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Cast 80/92 and billet 76/92 run almost identical at max power. The billet 76 is stronger below 20 psi and comes up a little quicker. I have a Cast 80/92 with race cover that might be for sale soon.
Old 11-12-2013, 09:25 PM
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Originally Posted by Sarg
Yes and no. If you look at the air that can go by the turbine wheel, you really need both parts in the equation. If you can't flow it past the turbine, you could have the largest compressor in the world, but if the turbine becomes a bottleneck it won't matter.
Correct but im speaking in terms of on paper. On paper changing the turbine on the same compressor wheel shouldn't change power level unless your comparing the turbos on a certain cubic inch motor.
Old 11-12-2013, 09:27 PM
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I might be interested in that 80 you have for sale if it's in awesome shape, PM me a price!

Jose, is that in fact a misprint on the HP rating for the 80/92? If it's not I may just stick to the 76 if the HP ratings are accurate
Old 11-13-2013, 12:40 AM
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Originally Posted by slowlsx
Correct but im speaking in terms of on paper. On paper changing the turbine on the same compressor wheel shouldn't change power level unless your comparing the turbos on a certain cubic inch motor.
The turbine means everything. CI don't mean everything you're cramming air in, and need to get it out while powering the compressor efficiently. A S475/96 will run circles around a S480/83. Smaller CI often are not as effected by a small turbine because they are not taxing the compressor or turbine near as much. A billet 76, or cast 80mm is about max for the 92mm turbine IMO. A billet 80 starts to run into back psi issues when you start to push it.
Old 11-13-2013, 06:29 AM
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Originally Posted by stock48
The turbine means everything. CI don't mean everything you're cramming air in, and need to get it out while powering the compressor efficiently. A S475/96 will run circles around a S480/83. Smaller CI often are not as effected by a small turbine because they are not taxing the compressor or turbine near as much. A billet 76, or cast 80mm is about max for the 92mm turbine IMO. A billet 80 starts to run into back psi issues when you start to push it.
Good post.


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