Throttle Body Ground (by loudboxer)

[skyhawk]

I tried this on the Mazda5 to get the same 'change of driving feel'.

1. with engine off, turn key to on (without starting the car)
2. Step on the gas pedal until it bottoms down then release.
(take note of how fast you caused the pedal to travel down).
3. turn off the ignition key. Then drive and 'observe' the feel.

4. next time at the next corner try the above procedure again.
this time making stepping on the pedal ever so gently slowly stepping on it.
and same procedure as above.

I notice a difference in the 'feel'. Quicker pedal speed will give me
the 'throtlle body ground' effect.

 

[blacksheepms3]

can this be done on mazdaspeed 3? is ms3 cable driven or drive by wire? I'd like to do this to my ms3, but not sure if it will have a significant effect. I get statics touching my dirver's side door especially in the winter, would this help? since the stray static electicity is gounded?

 

[Rotus8]

can this be done on mazdaspeed 3? is ms3 cable driven or drive by wire? I'd like to do this to my ms3, but not sure if it will have a significant effect. I get statics touching my dirver's side door especially in the winter, would this help? since the stray static electicity is gounded?

The speed intake manifold is aluminum (NA is plastic) which solidly grounds the TB. No possible reason grounding would be necessary.

 

[blacksheepms3]

so is ms3 throttle body cable driven?

 

[Falconx84]

nope, its drive-by-wire ... its just "naturally" grounded by design

 

[serialtoon]

I have some left over ground wires. might as well do this Also,i own a 2008 MS3 and i can pass up cars EASY on 6th gear....

 

[Rotus8]

I have some left over ground wires. might as well do this Also,i own a 2008 MS3 and i can pass up cars EASY on 6th gear....

Throttle body grounding on a speed does absolutely nothing. The intake manifold is aluminum which provides a much better path to ground than any wires could possibly do. (The NA 3 has a plastic manifold.)

 

[Tronix102]

woot woot

 

[Frankenstein]

Nice post Rotus8. The ETB is hard to reach and other grounding locations are available. I grounded to the alternator bracket, intake manifold, and driver's side strut tower.

 

[avextrax]

does this work for a 2009 mazda3?

 

[dimaxxxl]

Gentleman,
Correct me if im wrong. Has anyone noticed that the throttle body is already grounded to the biggest ground in the car, the engine. Makes you wonder if this is just snake oil

 

[goldwing2000]

Intake manifold is plastic and provides no ground connection to the cylinder head or engine block.

 

[F430TECH]

I took goldwing2000's advice and did the tb mod but a little differently and it was real easy.
Instead of goin all the way back to the battery, I figured since the engine is a nice ground - why not use it? This is cleaner and easier. I used a short piece of monster cable and wrapped in black tape to make it blend in better. Then I bolted it to the tb and used a manifold bolt for the other end (the grounding point). Took about 15 minutes.

Uhm so you grounded it to the engine that the throttlebody was already grounded too via the bolts that run through it into the intake manifold which is then grounded to the engine block by the bolts that attach that?

Interesting....

 

[F430TECH]

Intake manifold is plastic and provides no ground connection to the cylinder head or engine block.

I thought Speed 3 Intake manifold is aluminium?

 

[Rotus8]

I thought Speed 3 Intake manifold is aluminium?

Speed3 manifold is aluminum and does a fine job of grounding. The regular 3 manifold is plastic. This HowTo section is for both cars.

 

[F430TECH]

Speed3 manifold is aluminum and does a fine job of grounding. The regular 3 manifold is plastic. This HowTo section is for both cars.

So why are people claiming dfference on the Speed 3 then? I mean it isinteresting and I DO plan on trying it, can' hurt after all. Plus some nice Gold plate connectors with some heat shrink? MMM yummy...

 

[wolverine_man]

8 awg Wire and Copper Lugs FTW!

Went to home depot this past weekend for the HD Lip and the TB Ground mods. I ended up getting 8 awg insulated wire for the hell of it and some copper terminal lugs. Overkill? Perhaps.

I definitely noticed a difference on my 2.3 in first and second gear. Winds out much better and very smoothly. Total cost on the TB kit, $4.15. I also mounted it to the lower TB bolt so the install looks cleaner.

 

[BM377]

I just ground the throttle body on both my Mazda 3 and My CX-7 and deffently felt the difference, more so in the 3. My fiance even noticed the smooth acceleration on both vehicles. Deffently worth doing! and super easy on the 3 not so much on the CX-7 its a pretty tight fit to get at the bolts.

 

[MazdaBoyWonder]

would it matter if use red or black 10 guage wire?

 

[MazdaBoyWonder]

whats the difference?