Another D66 Turbo Queston - Ford Powerstroke Diesel Forum
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Old 10-12-2013, 12:09 PM
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Another D66 Turbo Queston

I'm not trying question Beans for adapting a stock turbo to something distinctly better but what changes are actually being made to the stock turbo to where it becomes the D66?

A different wheel, yes

Porting?
More? I don't know...


Curious if anyone knew the specifics and was willing to share.

Thanks
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Old 10-12-2013, 09:52 PM
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Would guess the 66 part means 66mm compressor wheel inducer compared to factory compressor wheel inducer diameter of 59.87 mm (60 mm) to accommodate the larger wheel plus going from 80mm compressor wheel exducer diameter to 91mm.
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Old 10-13-2013, 08:16 AM
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Machined cover to fit, they come with the 1.15 exhaust housing in the super duties, and I'm sure they come with that same housing for the obs. It's a ton more air than a stocker. And he's right about the wheels being totally different

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Old 10-13-2013, 08:56 AM
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The only issue alot of us with stock sticks or stage1's is high egt's because the D66 turbo spools up at a way higher rpm, We have over came that by swapping out their 1.15 housing with a 1.0 housing. We all Have the same boost numbers but get it sooner to cool things down and clean things up.
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Old 10-13-2013, 06:06 PM
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I have rosewood stage 2s with a conservative tune and a stock turbo. I am looking to improve the amount of air being produced by the turbo. I continue to look at the new WW2 and the d66. Just trying to figure out the correct route without blowing unnecessary money.


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Old 10-14-2013, 07:06 AM
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Id go with the bigger turbo. You're not getting the most out off your setup with a stocker and conservative tuning

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Old 11-19-2013, 06:57 AM
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I love my d66.. and the new ones have a new billit wheel that they got another 20hp out of on the dyno... im switxhin wheels soon on mine

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Old 11-19-2013, 02:56 PM
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Quote:
Originally Posted by wakeboardin2k4 View Post
I have rosewood stage 2s with a conservative tune and a stock turbo. I am looking to improve the amount of air being produced by the turbo. I continue to look at the new WW2 and the d66. Just trying to figure out the correct route without blowing unnecessary money.
i went this way for 15K miles. i have gone to a D66, WW2 and 1.0 housing. it's night and day difference
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