an_juan

Do you know if a 20b uses an electronic OMP like the 13b-rew?

Here's my plan, I want to use my stock fd computer to run the OMP. I could:

A. Modify the fd OMP to run with a 20b motor. Could I just splice another line to

the 3rd rotor?

B. Let the fd computer run the 20b OMP. I don't know if this can be done.



I would hate to run pre-mix.......too unconvienent.

j9fd3s

it is electric, it looks like the fd pump but it has 3 lines. either a stock s5 fc or fd ecu should run it (you may have to swap pins), but so will the e11 haltech, and prolly the motec



mike

an_juan

cool.



I did a compression test last night. 30 and 70 psi for the front and rear rotor, respectively. Thus, I need a new engine.



I've thought about rebuilding the 13b, but I'm going to acquire a 20b instead. I will try to keep costs down by using my current wolf 3d computer, and the stock 20b turbos until I get more funding to upgrade to better components.

j9fd3s

cool, keep us updated and pictured



mike

Jeff20B

If you need a 20B OMP, I've got one to sell, comlete with stepper motor. It only works with the 20B's front cover I think. Maybe the 13BRE has the same bolt pattern? Anyway, I'll be swapping front covers, so I can no longer use the 20B OMP. The only things that need replacing are the oil lines. I'll even include all three oil injectors and crush washers. It'll come in handy if all you can find is a shortblock, like what sometimes pops up on eBay. Interested? I also have the waterpump and turbo stuff to sell.

an_juan

I am also considering suing my fd front cover in the 20b......I'll see if I can use it. I'm going to pull the engine and tranny around the 4th of July weekend.

Jeff20B

All 20Bs used a CAS. All FDs used a timing wheel behind the pulley. Maybe Mazda was thinking about going with a timing wheel on the 20B? Hmm, maybe that's why the 20B pulley is so far out and the alt needs a snout?