300 turbo exhaust manifold info. wanted

[metalz]

Hello

Does anyone here know if Ak Miller (or anyone else, for that matter) made a turbo exhaust manifold for the 240/300? If so, what turbo flange was it (t3 or t4)? Or did he just modify the factory manifold?

If this exists, is someone willing to sell two or three? I will pay folding money. I am prepared to make my own, however, the time investment could be spent on other endeavours.

Incidently, I phoned "Ak Miller Turbocharging" and the fellow that answered the phone said they had recently took over the phone number and that I had reached "Ak Miller Garage" and he knew nothing about turbo manifolds.

Thank you

MetalZ

 

[nitrousnick]

I talked to ak miller many years ago about turbo charging the 300.as far as I know he past away a few years ago.But he did tell me some information that I still rember.He said they dont make a manifold for the 300 and to take a stock manifold and use a j pipe to mount the turbo with a to4 flange.

 

[Does10s]

I can make one, piece of cake!
The only problem is that I don't have a "donor" vehicle to use as a template.
Can you bring your truck(?) to Tucson for a month?
Will

 

[drag-200stang]

metalz & ncksvt,

I did a search here on Ak Miller and I found these pictures - www.ckdesign-inc.com/images/Turbo/300.jpg.

I posted this picture of my small 6 because I thought the exhaust manifold was easier to see. Ak Miller made 300 turbo manifolds just like this one he sold me in the 70's by taking stock manifolds and welding a T4 flange. The TO4B V1 compressor P-trim turbine you see in the picture was what he usually put on 300's. I added the external waste gate by welding a tube and flange to the manifold. As you can see it should not be at 90 deg like I did. It should be more at an angle with the flow. I favor the direct welded flange to a J pipe, if you have room to fit a turbo in the engine bay. I can't keep a stock exhaust system sealed. I don't know how you'd do it with the heat and pressure over time. Any welder can make these modifications. It doesn't have to hold water. This manifold made 450 rwhp on a 200 so I can't see why the larger 300 would not support 500 hp. If you wanted more than that a tubular set up would be the way to go. A finished turbo 300 is way faster than a super custom one never finished.

On turbo sizing it really depends on what you want to use the car for. I would call half the vendors you can find and tell them you have a 302 with mild cam and stock heads. See what they spec out for you and tell the other half what you are really doing. It would be interesting to compare the two. I hope this helped some.

 

[metalz]

Gentlemen

Thank you VERY much for responding. I hope that more responses will turn up equally good information. My search goes on, my collection grows.

Thank you

MetalZ

 

[curts56]

Metalz,

Here are a few pictures of my Ak Miller 300 exhaust manifold. I welded on a plate to cap off the heat under the intake manifold.

http://www.ckdesign-inc.com/images/Turbo/Manifold1.JPG
http://www.ckdesign-inc.com/images/Turbo/Manifold2.JPG

Also some images of the 223 turbo setup I built using a stock manifold and U-bend tubing.

http://www.ckdesign-inc.com/images/Turbo/223.jpg

Curt