HEMI Z1 Performance Module?

**mdw04_2000** · 10-21-2004, 07:14 PM

I was scanning ebay and saw this
http://cgi.ebay.com/ebaymotors/ws/eB...category=33597 http://<br /> Do you guys know what... what it does?

**kentc1978** · 10-21-2004, 07:54 PM

Nothing...stay away FROM anything that looks like that on Ebay. I'm not sure if it will hurt anything, but I am 99.9999% sure it won't help anything either.

**Rev.Hammer** · 10-21-2004, 08:43 PM

ummm FROM what I can tell this this is worse than useless. the numbers that they spec are far far too low to be that of a HEMI. They are either lying or they have no test DATA for proof.

Avoid!!!!

**HEMIHEAD** · 10-21-2004, 08:48 PM

Those modules connect to the IAT sensor and change the voltage so when the ECU reads it, the ECU thinks the air is colder and gives the engine a little richer mixture.
That's the extent of it.
Phil

**05MagnumRT** · 10-21-2004, 09:53 PM

If you look at the seller's other auctions, you will see many different vehicles listed with the same "22 HP" gain claim, and the body of the auction the same (at least among the half dozen I looked at). I doubt that even with a different version of this module for each vehicle that you'd get the same HP gain on all of them. I mean, it's a little bit more difficult to get 22 additional horses out of a Mini Cooper than it would be one of the Hemis...

Bottom line: Buyer beware (Buyer need head examination IMHO)

**thuffman03** · 10-21-2004, 10:30 PM

If you think that will increase HP then I have a bridge I can sell you.

**bipto** · 10-21-2004, 10:40 PM

Holy crap - this guy has found a way to boost output by 22 HP for less than 10 bucks - I'll bet DCX wishes they thought of that contraption first! :lol:

Seriously... "If it sounds too good to be true, chances are... "

**mdw04_2000** · 10-22-2004, 12:26 AM

Thanks for the info guys! :twisted:

**CJ7VFR** · 10-22-2004, 12:35 AM

Those aren't "modules". All this is, is a 4.7k Ohm resistor that you can put in line
with your IAT (Intake Air Temperature) sensor.

What this does is it makes the sensor think the air entering the engine is colder
than it really is. And in doing this, your cars fuel system will add more fuel for
the more dense cold air that the computer thinks is entering the engine.

All fuel injected cars have electronic fuel maps installed INTO their computors to compensate
for changes in temperature and air density so the engine will get the correct amount
of gas for the amount/density of air the sensors say is coming INTO the engine.

This is a very old trick. Anyone who ever drives their car where its warm in one
part of the day, and cold in the evening, will notice that your car will run better, and
seem to have more power in the colder temps. Thats because the cars computor is
adjusting the amount of fuel to match the denser, colder air.

Again, this is just a 37 cent resistor you can get at Radio Shack, put INTO a plastic
case that you can also buy at Radio Shack, and this guy just
shows you how to bend it so it can be jammed INTO your IAT sensor connector.

I would stay away FROM this. It can throw some CHECK engine lights, as well as
screw up your gas milage.

There is plenty of info about this on the web.

Jim