12a and 13b combination?
Too old to act my age
Joined: Feb 2005
Posts: 3,164
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From: Tulsa, Ok.
Originally Posted by Latin270
You could also get the grooves cut in 86+ housings to mimick SE housings.
Of course, if using 86-up N/A housings, then you also need to cut out the diffusers in the exhaust ports.
Originally Posted by Jeff20B
Wrongo.
trochoid, remember all those pictures of side plates and rotor housings we posted a few months ago?
SE and later have oil injector holes in the rotor housings, as do some non-US spec 12A rotor housings from that era.
Also stay away from the SE center iron if you want to run a carb. The tiny ports don't let you port it much before hitting water.
trochoid, remember all those pictures of side plates and rotor housings we posted a few months ago?
SE and later have oil injector holes in the rotor housings, as do some non-US spec 12A rotor housings from that era.
Also stay away from the SE center iron if you want to run a carb. The tiny ports don't let you port it much before hitting water.
Well that was one of my biggest blunders of late. Don't ask what I as thinking when I posted that reply, cause apparently I wasn't. Jeff's 100% correct, I don't know where my head was at, but it was dark.
90' triples? been there*)
Joined: Feb 2007
Posts: 247
Likes: 0
From: Leesburg, Fl
Originally Posted by Rogue_Wulff
Basic guidelines are:
Good 12A irons.
Good pre-86 13B rotor housings
Good matching rotors and counterweights/flywheel from any 13B, 89-91 N/A rotors are usually preffered, higher compression ratio, unless planning a turbo later.
Good e-shaft from any 13B, but pre-86 is usually preffered, due to no "Thermal pellet"
Beyond those parts, you will also need an intake for whatever type of induction you desire, and the exhaust manifold for turbo or header, a full rebuild kit, plus a few other odds and ends needed to complete the build.
Since you will have the engine apart, might as well choose what type of porting will suit your specific goals and HP needs.
Good 12A irons.
Good pre-86 13B rotor housings
Good matching rotors and counterweights/flywheel from any 13B, 89-91 N/A rotors are usually preffered, higher compression ratio, unless planning a turbo later.
Good e-shaft from any 13B, but pre-86 is usually preffered, due to no "Thermal pellet"
Beyond those parts, you will also need an intake for whatever type of induction you desire, and the exhaust manifold for turbo or header, a full rebuild kit, plus a few other odds and ends needed to complete the build.
Since you will have the engine apart, might as well choose what type of porting will suit your specific goals and HP needs.
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