anyone care to explain this to me? what is a half bridgeport... how do you make it only half of a bridgeport.. and what are the pros and cons of it?

 

only bridge the front and rear irons, not the middle

 

lol. slide or die!

you should ask Rotor8u on the OHR. but you should expect to not have any emissions passing capabilities. the primary ports get the eyebrow. this provides better power than a streetport but its not going to idle well. etc. but its still streetable. a full BP would just not be something i would want to drive on a public road often.

 

okay so i can bridge the front and rear.. and street the middle.. that should be cool.. i dont care about emmissions.. its a 79 so its exempt... sounds like a plan... and low.... i will let you see it when i am done.. lol

 

game on! actaully if we can team up a bit, i might need to pump some information from you on side seal clearence. i have a spare s4 13b NA motor i want to 1/2bp.

 

okay... where in ohio are you at?

 

couldnt be any farther north


(cleveland)

 

Even though I have a strong hatred toward tuning a 4 barrel carburetor ( I really love the weber, mikuni, OER etc. 2 barrels,) I bet that a 4 barrel would go well with a half bridge. The 2 primaries can run the streetported intake ports, and the secondaries, which are bigger anyway, can go on the brideported intake. That way you idle better and get easier low RPM driving, and when you open the throttle you get the better power/ better longer intake timing with the bridgeport side.

 

that sucks.. well i am using a 6 port 13b from a 84-85 gsl se... and using the front middle and rear plates from my 12a... so it will have 13b rotors and housings and 12a irons.. so i will be 1/2 bridgeporting the ends and streetporting the middle.. should be a nice combo.. plus its not my daily driver so i dont have to worry as much.. then i am gonna put a side draft webber on it.. then maybe a couple years down the road i may turbo it.

 

good info to know... i will keep that in mind.. i really wanted a side draft cause i love the way they look

 

i dont have a shell for my motor. but im more than likely going to put it into a FB.

 

cool cool... i personally prefer the looks of the sa

 

if i have to hack up a car a bit, i would rathar do it to a car that isnt rare as all hell.

 

The Holley for the bp takes a different intake than the stock port, due to the bigger butterflys. The bp intake has a plenum under the carb so that all of the runners are open, either that or a 1" spacer under the carb. You can't seperate out the primary and secondary runners on a bp, to keep the lower idle on the primaries only.

 

half bridges are AWESOME! a few TII guys here have that setup. BDC ported they idle just like a bridgeport, but are fairly streetable. once the turbo spools up.... WOOOHOOO!!! all the way to 9k rpms

 

That is my winter, Phase III project. FI, Megasquirt, and an S5 turbo. I just need to figure out which way to go with the throttle body. I have an RB holley intake and the wrap around side draft intake. I'd prefer to use the wrap around style, has a more visually appealing look. Decisions, decisions, what's a fella to do?

 

sweet you just made me feel my decision is awesome.. so i will let you all know about how it feels next spring.. im about to park the rex for the winter..