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-   -   Fcd (https://www.rx7club.com/general-rotary-tech-support-11/fcd-515266/)

EffSee3 03-03-06 05:53 PM

Fcd
 
so....how and where do i install one on my new 87 T2? i just ordered a turbo-back RB exhaust and now, i need to know where to hook up an FCD. :uhh:

...i searched btw, and i came up with tons of other posts, but none with one about where to hook in the plugs.

GUITARJUNKIE28 03-03-06 06:27 PM

unplug the map sensor
plug the fcd into that
plug the harness into the other connector on the fcd


but don't use the RB turbo-back with an fcd unless you add fuel and take timing out. you'll go boom with haste.

EffSee3 03-03-06 10:20 PM


Originally Posted by GUITARJUNKIE28
but don't use the RB turbo-back with an fcd unless you add fuel and take timing out. you'll go boom with haste.

...so, fcd -> walboro 255 -> turbo-back?

sorry, new at rotoraries....new to modding period :newbie:

GUITARJUNKIE28 03-04-06 05:54 AM

the turbo back is going to cause you to boost creep.

port the wastegate, back off on the timing 1* for every pound of boost over 8psi, double check the afr's with a wideband, and probably either add 680 secondaries, or at least an safc.

lots of guys have done that combo--adds gobs of HP over a stock car, but you'll be running too lean with too much timing.


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