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"acura Mdx Timing Advance Kit +20 Hp" - Click HERE for Original Thread
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etwd
I apologize if this has been asked before. Has anyone looked into or purchased this "ACURA MDX TIMING ADVANCE KIT +20 HP" resistor, as advertised on EBAY:


http://cgi.ebay.com/ebaymotors/ws/e...item=2448900777

It seems possible, especially since the 04' does run extremely better in cold weather.

Would love to hear some feedback on this possible 'snake oil' product. Admittedly, I have been taken before and probably will be taken again. :confused:

Thanks!
DaleB
quote:
Originally posted by etwd
I apologize if this has been asked before. Has anyone looked into or purchased this "ACURA MDX TIMING ADVANCE KIT +20 HP" resistor, as advertised on EBAY:


http://cgi.ebay.com/ebaymotors/ws/e...item=2448900777

It seems possible, especially since the 04' does run extremely better in cold weather.

Would love to hear some feedback on this possible 'snake oil' product. Admittedly, I have been taken before and probably will be taken again. :confused:

Thanks!



BOGUS! Spend the $5 on a Lotto ticket, your odds of success are better!
Ceenit
Logic tells me it is 'Snake Oil!'

reading the description, there are a few holes in the logic ("cooler air provides 15-20 HP more....“trick” your engine into thinking that it is taking in cool air all the time....")

And if it only took a $5 upgrade to add 20 more hp, I think Acura would be marketing and selling it for $500.
renov8r
The basic operation of the ECM is to adjust to fuel & air to extract max. power at min. emmissions & max. economy for every given situation.

There are ways to increase to amount of air entering/exiting the cylinders (everything from a new air filter to ported cylinder heads to reworked exhaust or even a supercharger) and with an increase in fuel flow there is the potential for more power BUT simply "tricking' the ECM by replacing the ECM's air temp signal with a 19 cent resistor from Radio Shack will NOT.

If you could "carry around" your own personal supply of cold, dense, oxygen rich air then your engine could make more power (that is basically the idea behind a nitrous oxide system) but "fooling' your motor into running a tiny bit rich is not even remotely close to adding "15-20 hp"...
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etwd
In theory, the resistor should work. 15-20HP, easily. I have a 1968 RS Z28 Camaro. For those our you motorheads, it is one quick car when cold and foggy (we can all attest to that). Rear HP dyno'd @ 320 to rear wheels stock with the ambient temp @ 88-degrees. At 53-degrees, it dyno'd at nearly 370HP. Of course there are no computers or any of the sort, but the theory does support the notion that cold does produce amazing HP. I'm not sold on the resistor, but the aforementioned example does give 'some' validity to their claim.

I wish that I could pump in 'cold' air constantly, but that just isn't in the cards. If there is anyone who actually dyno'd both before and after, I think the world would definitely be interested in the results. If the resistor actually did work, even a price of $300.00 would not be out of the question. Just look at the 'Jet" chip. There are people out there paying over $500.00 for a 10HP gain. I for one, would consider it, if not for the fact that their chip has been pretty much defunked by most of the popular car magazines as nothing more than 'Snake Oil'.
Soroosh
Not possible. When it's colder outside, the air density is higher, therefore more Oxygen per volume unit is getting into engine intake and fuel burns more effectively, which results in better HP. Basic idea of superchargers and turbochargers comes from here.

In this case, although you can trick the car to think that it is colder and set the ignition timing for that kind of situation, you have no control on the amount of Oxygen that is actually coming in. So what will happen is that your car burns extra lean, which should degrade the performance and put too much pressure on the engine. Not a good idea IMHO ... :1:
etwd
Soroosh,
Your definitely right. Great point!
renov8r
Read what you wrote:

quote:
Originally posted by etwd
For those our you motorheads, it is one quick car when cold and foggy (we can all attest to that). Rear HP dyno'd @ 320 to rear wheels stock with the ambient temp @ 88-degrees. At 53-degrees, it dyno'd at nearly 370HP. Of course there are no computers or any of the sort, ...

I wish that I could pump in 'cold' air constantly, but that just isn't in the cards.

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etwd
Agreed! I guess I'll go buy those lotto tickets now...........
DaleB
quote:
Originally posted by etwd
Agreed! I guess I'll go buy those lotto tickets now...........


Good idea! You 'might' fool the ECU there is colder air but the engine engine will be processing warmer air. and behave accordingly.
oceanMDX
quote:
Originally posted by etwd
For those our you motorheads, it is one quick car when cold and foggy (we can all attest to that).


A minor point, but cold dry air is denser than cold foggy (moist) air.

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