'08 Fly By Wire - Up-grade

[RSVT170]

So reading along in some mazda forums and found this. If this is a re-post, please forgive me......


As most of you know, the "Big 3" wire ground is a great and inexpensive upgrade for any car. Well, apparently, there is a 4th wire for cars with fly by wire.....



"LOUDBOXER" (Mazda 3 owner)

Grounding the throttle body isn't going to make 'more' power overall, but on some cars it seems to make a huge difference in how quickly you can get to what power's there. In my case, the change in low to mid-throttle, mid rpm driving is significant. Perhaps this changed the torque curves a bit through a more open throttle and more fuel earlier in the rev-range? I dunno. Fifth-gear passing on the freeway is now possible (from 60 to 80 is a snap), rather than having to drop a gear or two. Off-the-line acceleration is much brisker and driving casually around town is silky smooth. It feels like someone dropped a v-6 in my 3. I forgot I had the A/C on as well... My car must have been running like a pile of shit before, never seeming at all happy below 3500-4000rpm. Anyway, I've had a huge smile on my face driving around since this mod.

[Sponsor]

[theWorst]

this sounds pretty good...

i didn't know teh 08's were drive by wire... i'm kind of mad about this... i thought my throttle response was pretty good... DAMMIT.. i'm mad..

but if this helps.. then i'm happy...

omg this forum is making me bipolar.



think it'll be better if i put in an 8 g wire? would gold terminals and oxy free copper matter?

[zzr4u2nv]

will be trying this sometime this weekend to see if it helps....

Thanks for the post!

[zx505focus]

so what does this do again??????

[RSVT170]

I'm not sure about the technicalities (sp?) but I'm reading into it more about what exactly is going on to improve throttle response...I'll post more once I know more.

[zx505focus]

well thats cool, does it work with other years?

[RSVT170]

Only the '08 has fly by sire, but in theory, it should work on ANY car that has fly by wire and a metal housed throttlebody.

[RSVT170]

I just realized that this is in the wrong forum..

Can a mod move it to the regular Duratec Performance forum.
THANKS!

[theWorst]

dammmm... why oh why FORD????????

but anyway.. the system is so good i didn't even know it was there !!

but yep... this should help..


for those who don't know ... fly by wire is an electronically controlled throttle body that is basically programmed to not let you ruin your engine by opening the throttle before the fuel can be controlled and matched to fit.. "or soemting like that"..

anyway.. the sensors and gobbledy are all just basic.. i dont think any car manufacturers wanted to spend an extra $5 per car to sheild sensors from radio static and ground loops and static spikes...

the ground wire will take all that mess and send it somewhere else...


i think i'm right.. if i'm wrong i'm sure i'll be proven wrong.

[CapnGnarly]

Fly by wire also means instead of a cable going from your accelerator to the TB controlling the butterfly valve inside it, it's now computer controlled. Your right foot operates a computer-controlled switch, which then reads the signal, and transfers the input to an electronically (instead of mechanically) controlled TB.