Sent: Monday, September 29, 2003 4:46
PM
Subject: [FlyRotary] EDDIE free
intake
Greetings,
I'm still working toward
the Rev-B cowling, and one of the projects involves a new intake that will fit
under the cowl. Actually, that's one of the requirements, with the other
two being that it must allow for 4 matched injectors, and must allow the stock
turbo to mount without spacers. EDDIE is not a requirement at the
moment, since I'm still using the brute force method of induction, but I'll
make sure the manifold can be adapted later if needed.
I just ordered a new
throttle body from TWM, which has 4 injector pockets, so that covers that
problem. It also brings up the question- what's the best way
to plug the stock injector holes? Remember, this is a complete
engine, so let's keep the drilling and grinding options to a minimum. I
was thinking of those old rubber freeze plugs, where you tighten a center
bolt to expand the thing. I wonder if those are made small
enough? Also realize that I'm under boost, so the turbo will be trying
to shoot these plugs out of there. Any other ideas?
As for the intake
itself, the wrapover manifold that I have is too wide to allow the turbo
without spacers, so it's out. I believe someone said that PL's lower
intake casting would fit with a turbo ??? I've been hoping
that Paul would get his Mazdatrix manifold, so we could measure it, but that's
still "on the way". I did call Mazdatrix, and found out that they
had "no idea" whether it would work with the turbo, so I guess we'll just have
to wait and see. Does anyone know of a compact intake that will
work with the turbo, aside from the stock intake, which is of course another
option?
Thanks,
Rusty
Hi
Rusty,
My block injector ports are each blocked by a (I think - so don't hold me to
this dimension - its been awhile) 1/2" dia aluminum rod. I have two "O"
rings on the block end of the dowl to do the actual sealing. Each rod is
approx 4" long (don't hold to that dimension either. Its long enough so
that when I stick the rod (with the "O" ring) end down into the injector
socket, the other end sticks out far enough so that if you put a 1/4" plate
that extends from where the bolts (that held the primary injector rail) are
out over the injector ports the dowls are about 1/8-3/16 inch longer than the
plane of the plate. So that using the injector rail mounting
holes for the plate, that the plate will push down on the dowls when you
tighten the bolts down. Or you can buy the setup from
MazdaTrix for about 40-45$ In one of the photos showing the inlets to
Paul's manifold you can see the ends of the 1/2" aluminum rods plugging the
block injector holes.
Paul Lamar, did
produce a very low profile lower manifold. Here are the best photos I
have of it including a bottom shot from underneath the engine. When I
put my turbo on the stock turbo exhaust manifold there was plenty of room
between the turbo and intake manifold casting.
Its primaries are
1 3/8" and Secondaries 1 5/8" diameter. You can just about shove the
tubes in as is, but may have to grind a little bit around the inlets to get
those sizes to fit. I believe Paul may yet have some. If so his
last price was $185 for the casting. I used a 3/8" flange and bolted to
his manifold, but most people weld the tubes into it. However they are
using thick pipes rather than tubes. I brazed my tubes to the flange and
then bolted it to the manifold, so I could take it off (if things did not work
out with that manifold).
Hope this
helps
Ed