Triumph Repair: 1979 Spitfire EGR valve, stromberg carburetor, conversion kit


Question
Jim,  I am in the process of replacing the original Stromberg carburetor with a Weber DGEC conversion kit complete with intake manifold.  The new intake manifold doesnt appear to be designed to accept the hard line from the EGR valve, like the original.  Did I purchase the wrong kit, or do I just remove the EGR valve altogether?

Answer
Lance,

I guess it depends upon what your goal is.  

The EGR valve lets exhaust back into the intake manifold.  This helps cool the combustion a bit and lowers the NO emissions (when it all works).  The downside is that the engine produces a bit less power as it's getting less "new" gas into the cylinder when the EGR is open.

Typically most people swapping out the original intake system are looking for more performance.  

I guess before proceeding further it'd be a good idea to check the local auto inspection rules.  Many states are waiving emissions checks on cars over 25 years old but some are holding the line, right down to inspecting for all the original anti-pollution components.  If that's the case then you might need to have the EGR fitting tapped into the new intake manifold (or see if the manifold is available already modified) and possibly need to have a new EGR hard line fabricated if the old won't work.

Cheers,

Jim