Why does adding an ATS housing... - Ford Powerstroke Diesel Forum
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post #1 of 4 Old 02-09-2014, 03:14 PM Thread Starter
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Why does adding an ATS housing...

To a turbo with a WW make it whistle so much more? I've got a WW1 on my 7.3, I also have an ATS housing that is not installed (it's in the 4-sale section). Since I've had no real bites on it I was thinking of putting it on and was just curious why it makes the whistle so much more?

'02 7.3 4 door 4X4 -- Leveled, WIcked wheel,4" turbo back w/ 5" tip, 6637, foil delete, zoodad mod, hutch/Harpoon mod, glow shift Egt & boost, 4- 7" 55w HIDs
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post #2 of 4 Old 02-09-2014, 06:36 PM
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Cause it's the anti-surge housing that has releaf ports which makes a whistle sound when the compressor wheel is spinning.
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post #3 of 4 Old 02-09-2014, 06:43 PM
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027.3 riffraff makes a billet wheel specially for ported housing!

id look into that with your ported housing, i think the wheel is actually larger than stock.

99.5 f250 7.3 4x4 260k FF 160/30, PHP Hydra, S&B CAI, 4" Exhaust, RR Billet Wheel, Autometer Gauges, Transgo, Non-Ebpv Pedestal, High Flow Outlet, 08 Tow Mirrors.

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post #4 of 4 Old 02-10-2014, 10:31 AM
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I am almost positive that it is the same size as the 38r. I think (don't hold me to it) that the only difference between a 38r and a stock turbo with a ported housing is that the 38r is ball bearing and the stock one obviously isn't.

2003 F250 CCSB 7.3--Gearhead tuned, MBRP 5", 6637, Diesel Site Coolant Filter, 203* Thermostat, ISSPROs, HPx, 5% tint

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