Zetec Powered MGB Build Thread

[Mustangsix]

Originally Posted by Turbo Turtle

and a subi will loose that sound if you put equal length on it

The "equal length" thing is urban legend; you can make any I4 engine sound like a subie by pairing two adjacent firing cylinders into one outlet. Tie 1-3 and 4-2 together and send them out ina dual exhaust and you get the same pairings as left and right banks on a sube (or VW, Lycoming, Continental, or Porsche) flat four. Even a Honda Gold Wing makes that sound and they typically have very equal length pipes.

Back in the day, Porsche 356 racers used to cross the exhaust to get rid of the adjacent exhaust pulses. That makes a 356 sound like an inline 4 with tri-y headers. And the 4 into 1 stingers (equal length) loses the distinct flat four sound, too.

[Mustangsix]

Son is out off town doing pre-wedding stuff so i'm continuing the tinkering.

As it turns out, the port spacing on a 1.8 mazda Miata is nearly identical to the zetec so i'm going to fab up an adapter to bolt one on. Even if we haveto mod a pipe or two it saves a lot of fabrication time.

Now to do some more on this bike carb intake......

[sleepyboy]

I know I'm not the only one to be excited about this being done right?

[old1030]

Love this project, subscribed.

[pyroinsa]

Love this build! Did you ever get dyno numbers yet? Or did I miss that?

[Kipp]

awesome project! Looking forward to see how it all comes together!

[79mgb]

Originally Posted by pyroinsa

Love this build! Did you ever get dyno numbers yet? Or did I miss that?

Thanks! My first dyno appointment fell through. I have an appointment now for Thursday so I'll scan and post the results after.

I just had the car weighed this morning at the local landfill and it was actually a nice surprise. On mgexperience.com they listed the gross weight of a 1980 MGB around 2,500 pounds. My MGB only weighed in at 2,320 pounds with a full tank of gas (including spare tires, jack, etc). After doing a chrome bumper conversion and this engine/transmission swap, my MGB will probably shed at least 200 pounds. The only downside is that it cost $6.00 to weigh in!

[old1030]

It would be great if you can get video too.

[79mgb]

That seems like a good idea. I recently just upgraded my cell phone and it shoots 1080p video. I'll try to put a video together so you guys can see the car in action.

[79mgb]

Well... I made my way to shop today and they told me their computer for the dyno died yesterday. They said they would contact me when it's running again.

I need to find a more reputable shop. I've been waiting to dyno this car for too long. I'm still going to make a video this weekend to show you guys the MGB.