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Custom Dodge Ram Performance Mods - Engine - 5.7 HEMI V8 Discuss modifying your Dodge Ram with Performance Parts and Accessories!
Factory Spec: 5.7-liter HEMI® V8 engine - 390 horsepower, 407 lb-ft of torque.


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  #1  
Old 01-13-2012, 03:45 PM
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Default Grounding out the Throttle Body?

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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Last edited by RamTex; 01-13-2012 at 03:48 PM.
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Old 01-13-2012, 03:55 PM
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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.
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Old 01-13-2012, 04:01 PM
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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.
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Old 01-13-2012, 04:03 PM
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Quote:
Originally Posted by RansRAM View Post
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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Last edited by RamTex; 01-13-2012 at 04:12 PM.
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Old 01-13-2012, 04:06 PM
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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...
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Old 01-13-2012, 04:11 PM
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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.
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Old 01-13-2012, 04:14 PM
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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.
And if it does work i deserve some mega rep points!
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Old 01-13-2012, 04:58 PM
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from what bolt on the throttle did he connect it too
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Old 01-13-2012, 04:59 PM
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I'd love to know if this would actually do anything...
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Old 01-13-2012, 06:06 PM
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quick someone try this, to cold outside where i live to go and give it shot with my aligater clip test leads
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