Locost with VVT EFR and MS3x
 

Here are couple of photos of my Locost 7. Planning to run couple of track days and hillclimbs this year with it.
https://cimg0.ibsrv.net/gimg/www.mia...87e038ec67.jpgIntake side
https://cimg1.ibsrv.net/gimg/www.mia...a3c1dc9ca7.jpgExhaust side.
hrk

I bet it rips.

What's up with the wastegate? Infinite boost?

On my quest to make EFR work as well as the previous Garrett, I used external wastegate which is below the header. That way I can put the boost pressure on both sides of diaphragm, and control boost by bleeding the pressure from top out.
Wastegate dumps into separate exhaust.

Im going to hazard a guess that its not slow, especially with those hoosiers...

No need for an EWG to make the EFR work. Turbosmart makes an EFR-specific twin-port actuator, and the standard wastegate will always flow better than an EWG tacked onto the side of the manifold.

I think this is the car that Ben said spooled slower and made less power than a 2560?

Yes it is. Must have been a magical 2560 lol.

--Ferdi

Are the pics deceptive or does it have about half an inch of IM runner length?

Short but not quite half an inch.

The intake manifold is exactly this one.
https://www.miataturbo.net/general-m...anifold-41495/