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Discussion Starter · #1 · (Edited)
Have any of you guys heard of this? I have a buddy with an 08 ram hemi and he just ran a 10 gauge wire from a bolt on the trottle body over to a grounding location near the battery. And he says that he has noticed a big difference in throttle response.

My only theory on this is: By grounding out the throttle body it takes any ambient static built up on the wires and cleans up the signal going to and from the sensor/pcm? The flow of air going through the throttle body could build up enough static to cause extra noise on the signal and this would clean it up? Making for a more accurate variable the pcm can use to compute?

Any more imformative input on this idea would be awesome!
 
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Discussion Starter · #3 ·
And he is saying the truck is shifting better too! He has had the truck a long time and has raced it alot im sure he would notice a difference if there was one.
 

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Discussion Starter · #4 · (Edited)
There may be some merit to your theory it would be interesting to scope the signal for comparison with or without the extra wire direct to ground. I do have a hard time believing there would be that much static but you never know I guess.
Even if there was just a tiny bit of static on the signal this could change a whole lot of things the pcm will do to the whole system. The only way you could test it is to have the return wire hooked up to a spectrum analyzer or an occiloscope and see if over time there is any build up of extra noise on the signal but you would need to know what the threshold is from the factory. Then connect the grounding wire to the throttle body and see if the noise drops.
 

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Discussion Starter · #5 ·
And hey if it is true you sure cant beat the price of free. Im possitive that 90% of us have some wire just laying aroung the house that a multitude of you guys could try this and see if it really works or if it is just a pipe dream...
 

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And hey if it is true you sure cant beat the price of free. Im possitive that 90% of us have some wire just laying aroung the house that a multitude of you guys could try this and see if it really works or if it is just a pipe dream...
LOL, I was just thinking this myself. It's easy to do, it's cheap and there is absolutely no harm it could do. Might give it a try just to see if I can notice any difference. :smileup:
 

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Discussion Starter · #7 ·
LOL, I was just thinking this myself. It's easy to do, it's cheap and there is absolutely no harm it could do. Might give it a try just to see if I can notice any difference. :smileup:
And if it does work i deserve some mega rep points!
 

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Discussion Starter · #11 ·
from what bolt on the throttle did he connect it too
No clue which bolt i do remember he said it was one that would easily hide the wire apon install...
 

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And he is saying the truck is shifting better too! He has had the truck a long time and has raced it alot im sure he would notice a difference if there was one.

At best I think that I would chalk this up to the placebo effect.
I have used grounding kits in the past that centered around providing a solid ground for the engine and transmission. The only benifit noticed was a slight reduction in the delay when the transmission would shift in manual mode and less engine whine. The vehicle I am refering to is known for slow shifts in manual mode (automatic trans with manual shift option). It is quite possible that what I was experiencing was a placebo effect as well, I may never know. This topic has been beaten to death (on other forums). Whether the "gains" are due to improving the grounding over the factory ground wires, or renewing the existing aging factory grounds it is something to determin. If drastic or "big gains" are noticed by adding a grounding kit (or more so a single wire to the already grounded throttle body) I would seriously look into finding an underlying issue, possibly a poor factory ground wire somewhere within the main electrical system.
 

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I did this last week with a 10ga wire and shrink wrapped everything, and yes it gets rid of the "lag" that a lot of our drive by wire hemi's have. It seems to work because our intakes are composite so the ground in the plug is very weak. Did not cost me anything, I will be looking into making all new grounding cables soon, like the DynamicGrounding kit that is available. Looking at the TB I used the bottom right bolt and grounded to the drivers fender where the neg batt cable is grounded.
 

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Interesting...I have the drive by wire setup on mine and I'm all about some free mods.
 

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subscribed. one person did this mod and said it seemed to notice, any1 else? I guess we need to sneak over to someone ram and do this without telling them and then ask if they felt any change in driving!!!!!!
 

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I'm off work til Tues, might go outside and do it one day if the weather warms up and see if I can tell a difference.
 

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subscribed. one person did this mod and said it seemed to notice, any1 else? I guess we need to sneak over to someone ram and do this without telling them and then ask if they felt any change in driving!!!!!!
Would this like the "blind test" we always hear about on those TV cola commercials?...LOL!
 
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