How does the weight of this 2nd gen intake manifold compare to the

current

(Lamar) flange and castings if used in a NA mode?  Would it be
easier/cheaper/ etc. to take a 2nd-gen manifold and cut off part of

the

the

intake end, and either flip it over and weld it or the bell-mouths

back

on?

Scott Gettings

That is a good idea. Weld a set of our bell mouths on. I'll have to
check the diameter as I think I have one in the hangar. You might need
to smooth the transition with a die grinder as I think our bell mouths
might be slightly larger in inside diameter than the Mazda runners.

The weight is about the same or maybe a little bit more. Sand castings

are

not

the best when it comes to weight. My intake manifold uses pipe
bends which save a bit of weight.

The overall height of the engine will be three to five inches higher
due to the increased clearance between the stock runners and the top of
the engine. Not something that won't fit in a pusher however.

Paul Lamar

Boberrorusa wrote:

Paul, what "PSRU" is being used this ipg??
Boberrorusa

That is Perry Mick direct drive ducted fan. No PSRU. Just a prop extension.

Paul Lamar

That is an old photo. It looks much different now. That stock intake
manifold worked great and got me in the air with very little modification,
but it's been gone for over a year now. Each of the three pieces aren't that
heavy by themselves, but when it's all combined it is significant weight,
and it does add a lot of bulk on top of the engine.

Perry

 
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