Help: Were to get a.88 AR housing for S366

[MAXX IT OUT]

I am looking to change my exhaust housing due to my power band going to be lower then I first thought.I have a .91 AR housing and just want to drop size to get better spooling.:thumb:
If anyone has one let me know or were to get one.

 

[MAXX IT OUT]

If there is a different size some one would recommend let me know. Power will be at or under 500 hp for most of the time, and maybe a max effort tune of 600. I think I have found a .81 housing, but not sure if it will work on my turbo.

 

[S Phinney]

.88 will be a open plenum housing. It will not spool better than the divided .91 housing.

 

[MAXX IT OUT]

I was talking to a tuner today, and was recommend to go to a smaller exhaust housing for the power band I will be running. This was to help better spooling times, and better MPG's. Mark recommend the open .88 housing, is there a better option or should I stay with the current housing.

 

[SSchmi5519]

Is this T3 or T4?


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[MAXX IT OUT]

T4, cast wheel, out of the box Borg Warner turbo.

 

[SSchmi5519]

Call forced inductions. They list a .88 housing but it doesn't say if it is divided or not. They might be able to machine a custom housing for you if that's the case.


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[Ne-max]

Many people say a billet wheel will help a lot. Mine seems to spool pretty damn fast. But I think it depends on the convertor also.

 

[MAXX IT OUT]

Steve will this help.......right now under normal driving, the turbo only runs between 2-5 psi. I am not upset with how it is operating, but if it will help my mileage and give more fun, I will spend a little bit of money and to time to get this.:joker:

 

[Ne-max]

Btw mine has a cast wheel. Not a billet.

 

[MAXX IT OUT]

Many people say a billet wheel will help a lot. Mine seems to spool pretty damn fast. But I think it depends on the convertor also.

I have thought of doing a billet wheel, but right now it running on stock tuning it spool fine, a little slow, I was hoping that tuning would fix it. But if the better fix is to go with a small housing, then I will bypass the band-aid fix.

 

[SSchmi5519]

The less boost you run at normal driving the better mpg you will get. With my s472 i cruise at .5-1psi




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[Ne-max]

Smaller housing will create faster spool along with more drive pressure.

 

[MAXX IT OUT]

.88 will be a open plenum housing. It will not spool better than the divided .91 housing.

So is the open plenum housing bigger because it is not divided?

 

[SSchmi5519]

Lighter billet wheels front and back will make a small difference. Tuning can make a big difference in hard throttle spool from low psi.


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[SSchmi5519]

So is the open plenum housing bigger because it is not divided?

Big part of it is a velocity deal


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[MAXX IT OUT]

So what is recommend....stay with the same housing, or get a different housing. Then there is a third option, but I don't have a S480 or S483.

 

[SSchmi5519]

Have you hooked up a drive pressure gauge? If the drive is decent as is, the smaller housing may be a viable option if it is divided.

 

[S Phinney]

I have thought of doing a billet wheel, but right now it running on stock tuning it spool fine, a little slow, I was hoping that tuning would fix it. But if the better fix is to go with a small housing, then I will bypass the band-aid fix.

Your problem rest in the tuning. It takes a good bit of fuel to drive the charger. Tune it properly and you will be happy. I have several that I tune with a similar setup and all are happy.
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