My thoughts on a Bridge-Port 13b :)

[N.RotaryTech]

So for the past year (almost), ive been daily driving my FC.

If you've seen my build thread, I think its titled: "My ongoing project car", you know that the 13b I'm running has every single port ported, some of them quite extensively, including bridge-ports on the end-irons.

Basically I'm going to praise this engine here.

But first, yes there are drawbacks.
Bad gas mileage, mine gets 13mpg.
Tricky low end, driving with rpms under 2,500 = just no. Unless your experienced with this sort of thing.
Louder than normal exhaust tone.

Now i don't have much experience with other rotary engines as to compare performance, except an N/A 13b.
But I'm going to say this, there are 2 things:

#1. The noise it makes at idle, just one of the best sounds in automotive history.
#2. When you get on it, and the rpms rocket and go past 5k, the engine sounds like some raging beast right outta hell.

These two things make the whole bridge-port thing Totally worth it.

I swear it puts a big smile on my face, there's a laugh included on there too.

[chibikougan]

I personally don't prefer the Brap Brap as it reminds me of a badly tuned cammed up engine.


I just really like the smoothness of the Street Port and overall performance on a Turbo at full scream is just great.

The N/A SP 12a a friend uses to race is also another one of my favorites

I also really like the Supertrapp on the N/A's

[speedjunkie]

Originally Posted by chibikougan

I personally don't prefer the Brap Brap as it reminds me of a badly tuned cammed up engine.


I just really like the smoothness of the Street Port and overall performance on a Turbo at full scream is just great.

The N/A SP 12a a friend uses to race is also another one of my favorites

I also really like the Supertrapp on the N/A's

Really?? I LOOOOOOVE the lope of a BP. My old streetport engine loped like that and I loved it, and I wondered if the port was just that big.

Nope. It was because the engine was trying to keep from drowning because the 1000CC primaries couldn't be tuned down enough lol.

[RETed]

Until...

...the bridge breaks.


-Ted

[TitaniumTT]

Originally Posted by speedjunkie

Really?? I LOOOOOOVE the lope of a BP. My old streetport engine loped like that and I loved it, and I wondered if the port was just that big.

Nope. It was because the engine was trying to keep from drowning because the 1000CC primaries couldn't be tuned down enough lol.

PFC controlled? I've got a large SP, pulls about 15" of vac at idle but is smooooooooth at 1050 once warmed up. Running the same injectors. I've found that PFC's and microwrecks just don't have the resolution and comp tables to control big ports smoothly.

[speedjunkie]

Originally Posted by TitaniumTT

PFC controlled? I've got a large SP, pulls about 15" of vac at idle but is smooooooooth at 1050 once warmed up. Running the same injectors. I've found that PFC's and microwrecks just don't have the resolution and comp tables to control big ports smoothly.

Yep, that was back when I used the PFC, so it makes sense lol. I always had issues getting the car to idle without hunting when I hat that ECU.

[TitaniumTT]

Werd. PFC's have issues, bad idles are one of them... lemme guess.... you swapped ECU's with someone else and still had the same hunting issue?

[speedjunkie]

I never swapped Power FCs with someone until mine would no longer run the car for some reason and I tried Zico's and it worked so we traded lol. But I've since jumped ship completely to a new setup and I'm pretty happy.