it is a Turbonetics Race gate,Big *** Bell looking thing.Silver lid,(decal removed) and a copper ringed bottom.
it has a cast number of 10307 above the "T" imprinted on the lower part of the wastegate flange casting.
can anyone tell me what size it is?
Thanks guys,I appreciate any info.
Cheers Styx.

 

I don't understand. Can you not measure the diameter of the inlet hole?

 

I can help if you would post up a picture

 

I googled: Turbonetics 10307 ,and got a 42mm wastegate.
mystery solved.

 

I think you can measure the piston diaphram too

 

Here's some info :

http://turboneticsinc.com/forum/turb...eWastegate.pdf

http://www.turbonetics.com/catalog/wastegate.html

You can also pull the spring out to see what colour is on it which will let you what psi it is, I got this wastegate a few week's ago for $80nz and it's brand new, Not bad i thought, 9psi adjustable to 13psi :

 

Thank you very much for replying.
That pic is exactly what I have!.The only thing about this wasteagte that I don't like is the weight and flange.But If I have to run it,I will.
I am building a setup on a TII engine that entails a T04Z,3 inch downpipe.
The engine is run by a Haltech Plat1000 with RC750/1000's (Stage 3 BNR Turbo right now).
I am tossing ID 1000/2000's on to compensate fuel when I switch over to the T04Z.
my "idea" on a Wastegate is a 44mm or bigger,so that Turbonetics is a close call.

 

Im in the same vote as you, I dont like the flange or the weight/size but will use it if need be because it was a real cheap buy and it will do the job, Id prefer a tial 44mm wastegate, Its half the size/weight and better flange, Will wait and see what happens, My set up will be on a TII block, ID injectors, Micro, Bosch pump, High flow stock turbo, Custom manifold in a first gen. Let us no if you use it and how it goes ... Cheers.