Hi, I am currently rebuilding my engine and decided to do a street port. I was just looking around and got reminded of the half-bridge port. I am thinking about trying to do this since I have everything apart already. I have done a lot of research and know the downsides of the bp, but I wanna try doing a very small bp, like a 1/4" or smaller slit instead of a larger second port. That way there would be more meat on the bridge and b/w the water jacket so hopefully lifespan wouldn't be as bad as a larger one. The exhaust port was ported very mildly, just getting rid of the casting and trying to increase some flow. What I am wondering, is if this small half bp is gonna totally destroy spool up? I will be running a hybrid t04 compressor and housing on a s5 hotside. I don't plan on turning the boost up very high at all... keeping it under 10psi. I don't mind if lag is increased a bit, but I just don't wanna totally screw up the geometry of the turbo. I know people are running larger half bp's but with pretty big turbos, so I just am wondering how it will do with the smaller one. Any input would be greatly appreciated.

Thanks,
Aaron

 

p.s. this is 2a+RoN, I'm just too lazy to log in...

 

street port will already outflow your turbo. bridge is just pointless. half brigde is for like 500-600hp. need a t66 or something to keep up.

street port is good for t04 turbo 400-500.

 

really? I though halfbridge was like 400ish tops unless your running disusting amounts of boost

 

Thanks everyone, I decided to just stick with the streetport.

-Aaron

 

Wise decisions,

 

no way man half bp rules!!!!!!!

lots more mid range torqe!!

2 weeks ago I made

315hp @ 8 psi

after working on the haltech

340 @ 10psi @ 7400

 

Someday I will go to the darkside and do a half bp. Right now, I think I'll just see how the streetport is. When I have more time and money to spend tuning and stuff I will definately try it. I'm just soooo excited about doing a half bridge, I think I'll still do one for practice on one of my housings

 

I wouldn' go half bp without an EMS and a bigger turbo.

 

I'm still learning lots, so what is a bridge port? And what are the benefits of having it done?
Thanks

- Carlos