2.2L L61 Performance Tech 16 valve 145 hp EcoTec with 155 lb-ft of torque

throttle body grounding mod

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Old Aug 8, 2008 | 12:41 AM
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throttle body grounding mod

has anyone tried this yet? i have a friend with a mazda3 and lancer and did this mod to both of them. unfortunately its much easier to do if the battery isnt in the trunk, but im thinking maybe you can get the same effect using the jumper short cut battery under our hood.
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Old Aug 8, 2008 | 12:56 AM
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Originally Posted by pickin my brother up
has anyone tried this yet? i have a friend with a mazda3 and lancer and did this mod to both of them. unfortunately its much easier to do if the battery isnt in the trunk, but im thinking maybe you can get the same effect using the jumper short cut battery under our hood.
I thought you were ******* crazy when you said this, but I actually looked it up and it seems pretty feasible. I might actually try it just for ****'s n giggles.

http://www.msprotege.com/forum/showt...hp?t=123631517
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Old Aug 8, 2008 | 12:58 AM
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Interesting. I dont know what to say, cool if it acutally works or "**** i'm so stupid what was i thinking?"
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Old Aug 8, 2008 | 12:59 AM
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really cheap too. i dont know what to expect for it on a 2.2, but if it works....hell
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Old Aug 8, 2008 | 01:04 AM
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Maybe if I have time tomorrow I'll throw a wire on there and see if it makes any difference.
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Old Aug 8, 2008 | 01:06 AM
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i dont see how this could do anything, with my bit of electrical knowledge.

Originally Posted by HackAbuse
Maybe if I have time tomorrow I'll throw a wire on there and see if it makes any difference.
just ground it to the body or somthing, its the same exact thing dont waste the wire goin all the way to the trunk

Last edited by cblt12; Aug 8, 2008 at 01:06 AM. Reason: Automerged Doublepost
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Old Aug 8, 2008 | 01:06 AM
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wtf man lol

i dont see how this does a damn thing. The T.b is already grounded through the engine grounds anyway...sooo...?
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Old Aug 8, 2008 | 01:09 AM
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Originally Posted by cblt12
just ground it to the body or somthing, its the same exact thing dont waste the wire goin all the way to the trunk
Of course, lol

I'll probably either ground it at the engine block, or ground it where my nitrous solenoids are at.

Originally Posted by Codyak Supercharged
wtf man lol

i dont see how this does a damn thing. The T.b is already grounded through the engine grounds anyway...sooo...?
The TB is grounded with a 16+ gauge wire, the point is to give it a larger ground
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Old Aug 8, 2008 | 01:11 AM
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Originally Posted by cblt12
i dont see how this could do anything, with my bit of electrical knowledge.



just ground it to the body or somthing, its the same exact thing dont waste the wire goin all the way to the trunk
I'm with this guy.
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Old Aug 8, 2008 | 01:13 AM
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quoted from mazda site.

"All it does is decrease the throttle tip-in delay, provide a more linear acceleration give you smoother shifts."

definitely something that's worth a try.

but yeah it would be a bitch bringing that wire all the way to the trunk.

Last edited by impulseballer; Aug 8, 2008 at 01:14 AM. Reason: Automerged Doublepost
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Old Aug 8, 2008 | 01:18 AM
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If anyone wanted, test it by doing immediate before-after, just disconnect the ground at the TB, try the car, then connect it and try it, see what you feel.

Also, I imagine it would do more on the 2.2/2.4, the SS/SC goes onto an all metal setup, there isn't a giant plastic manifold to insulate it. LSJ's are probably better grounded already. I might have to break out the OHM tester.

Last edited by ItalianJoe1; Aug 8, 2008 at 01:18 AM. Reason: Automerged Doublepost
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Old Aug 8, 2008 | 01:21 AM
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Originally Posted by ItalianJoe1
If anyone wanted, test it by doing immediate before-after, just disconnect the ground at the TB, try the car, then connect it and try it, see what you feel.

Also, I imagine it would do more on the 2.2/2.4, the SS/SC goes onto an all metal setup, there isn't a giant plastic manifold to insulate it. LSJ's are probably better grounded already. I might have to break out the OHM tester.
i think that would be the best way to test it...maybe ohm meter lol?
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Old Aug 8, 2008 | 01:22 AM
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Originally Posted by impulseballer
i think that would be the best way to test it...maybe ohm meter lol?
I have a multimeter I could test it with
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Old Aug 8, 2008 | 01:24 AM
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Originally Posted by HackAbuse
I have a multimeter I could test it with
Same ****. Just compare your car to an SS/SC, from say the head to the TB. Your car should be open, SS/SC should be nice and low.

Then check for ground from the TB to the frame or something, same spot on both cars. Should be the same result from what I can think of.
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Old Aug 8, 2008 | 01:38 AM
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Originally Posted by ItalianJoe1
Same ****. Just compare your car to an SS/SC, from say the head to the TB. Your car should be open, SS/SC should be nice and low.

Then check for ground from the TB to the frame or something, same spot on both cars. Should be the same result from what I can think of.

Kay, I'll do the TB to the head, then from the TB to the Driver side strut tower bolt

First I'll do OHMs with the car off, then with the car running, then while the car is idling, I'll check voltage to see if there is any static charge at idle.

BRB with results.
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Old Aug 8, 2008 | 01:45 AM
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Originally Posted by HackAbuse
Of course, lol

I'll probably either ground it at the engine block, or ground it where my nitrous solenoids are at.



The TB is grounded with a 16+ gauge wire, the point is to give it a larger ground
Any static build up would be transfered to the block which is grounded. The resistance is there but the electric value isn't there. IMO of course.

on a side note i have had to ground monitors in cars because of the electric current they pickup through the other equipment, and shows up in the screen as waves. But thats not a static build issue...

hell try it would be interesting to see what happens. Although the basis of this theory is static effecting a servo...
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Old Aug 8, 2008 | 01:47 AM
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Okay, this is interesting.

The casing of the throttlebody is not grounded at all.

I triple checked this.

And heres another weird but interesting thing, i checked the voltage difference from the throttlebody to the chassis in four different places and came up with a 0.3v (+/- .05v) difference in voltage
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Old Aug 8, 2008 | 02:23 AM
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I wish I knew more about grounding and everything so i dont know what that means...does that mean there is potential benifits to grounding the throttle body?
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Old Aug 8, 2008 | 02:26 AM
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Originally Posted by Herndon_High_SS
I wish I knew more about grounding and everything so i dont know what that means...does that mean there is potential benifits to grounding the throttle body?
The supercharged models are already grounded because the intake manifold is metal
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Old Aug 8, 2008 | 02:29 AM
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Originally Posted by HackAbuse
The supercharged models are already grounded because the intake manifold is metal
So how about the 2.2 and 2.4's plastic ones? They might benifit with this if it actually works.
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Old Aug 8, 2008 | 02:37 AM
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hmmmmm subscribed
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Old Aug 8, 2008 | 02:41 AM
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This is interesting hmmm...
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Old Aug 8, 2008 | 02:44 AM
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this does seem promising.
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Old Aug 8, 2008 | 02:45 AM
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Hack, this work or not? ..lol.
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Old Aug 8, 2008 | 02:49 AM
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Haha! Were all waiting...

Subscribed too!
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