2002 turbo housing question

[jhp7.3]

been thinking about a turbo upgrade, and was looking at the one on my truck , noticed that the housing has 1.00 AR stamped on the housing????
I had the understanding that the stock housing was an .84, I've attached two photos, any tech help on this would be a great help.

[jhp7.3]

??? anyone ???

[MrJohnWayne]

I'm not sure bud but it might have something to do with the area the truck was originally delivered (air density, humidity etc..) Are you the original owner? if there was a previous owner maybe he upgraded the housing already

[jhp7.3]

no 2nd owner, but truck was leased, and was bone stock when I bought it a year ago,
so its always been here in Florida as far as i know

[slpin]

the reason for that is you are looking at the compressor AR
look at the rusty looking side and it should say .84

[FionaThe02PSD]

^^^ Correct. The 1.00 AR is on the wrong side. it's a stocker. Put a Banks Bighead and a ATS ported housing on it unless you plan on going big on injectors..

[jhp7.3]

Thanks for the info,
do not plan on changing the injectors, at least not at this time.

[Bart_3500]

Originally Posted by FionaThe02PSD

^^^ Correct. The 1.00 AR is on the wrong side. it's a stocker. Put a Banks Bighead and a ATS ported housing on it unless you plan on going big on injectors..

Can I get in on this thread? I too have an 02 7.3 and I'm wondering what's this about the Banks "Big head" and ATS ported housing? Please explain what these will do for jhp7.3 and me.

[jhp7.3]

Hi Bart 3500
the Banks bigs will hold more pressure than the stock wastegate and allow more boost before opening.

or you could take the boot with red line off the stock wastegate and make more boost for free in less than 2 mins

[FionaThe02PSD]

The BBH has a very stiff spring and it adjustable to dial in the exact maximum boost that you want. Even removing the "Red line" the stock unit will start to open as the spring is weak.

The ATS housing will eliminate "Surge" that is associated with performance tunes.