I'm having a hard time locating this flange. A standard 4" flange isn't clamping down all the way but the OD on the ring matches the OD outlet on the turbine housing. Does this turbo use a 3.5 flange?? Where are you guys getting them?
Thanks!

 

If i'm not mistaken it is just a T4 bolt pattern. Should be very easy to find. Post up a picture of your turbo so we can verify what turbine housing you have.

 

Sounds like he's talking about the dp flange, a regular 4" should work. Sounds like you might have the wrong clamp.

 

Yeah sorry about that. I meant the V band flange. The OD is the same on the 4" flange as the turbine housing. The clamp that was supplied fits around the turbine housing outlet with a half inch or 3/4" of threads showing on the clamp. However, it won't fit around the 4" v band flange being used for the DP because it's not recessed like the back side of the turbine housing. Really think this is the wrong clamp? Or is there just a special v band flange that needs to be used rather than the standard 4"?
Thanks for the quick replies. I have pictures if need be.

 

A standard 4" clamp and flange works. Sounds like maybe the clamp you have doesn't have a deep V inside like the regular ones. Pics would help.

 

you're probably right. It seems to fit very well around the turbine housing but not the DP flange (i've got 2 of them here i'm trying)

http://www.redjackhosted.com/joe/4294/

There are some pictures. The clamp is hand tight depressed around the flanges in those pictures.

 

looks to me like you need a larger clamp, the flanges look just fine.