ok i know what ur thinkin..another moron gonna get ripped by the ebay guys. but really...i could do this myself with parts from radio shack for like 1 dollar, and the concept does make sense.....

""The small electronic component chip will modify your AIR/Fuel ratio and slightly change your engine timing(3-5 degrees) to run stronger and with increased power. ''"

from what i have heard all this is is a resistor between the intake air temp sensor and ecu...which changes the iat value, making the ecu take more mixture and have better timing. am i right?

so all i need to do is figure out what size resistor it is and i could just do it myself..of course..i could just spend 10 bucks on ebay...but i just can make myself give someone $9.99 profit for this.

so my 1st question is...

IS there some reason i am overlooking why this doesnt work? (i realize that 5hp is a little more realistic than 20, but hey 5hp for $.10 isnt a bad freakin deal)

and also...anybody done this? what resistor do i need? or if not that, what is the optimum value to feed to the ecu and i can do the math (maybe..)

anyway.. feel free to flame im tough..but if u can help that'd be nice....

thanks,
Pat

 

How about you actually adjust the timing?
instead if going all technical/electrical.

 

Thats what I was gonna say!

 

it also adjusts the a/f ratio.

 

If you add a (preferably variable) resistor into the ECU thermosensor wiring you can trick the ECU into thinking the engine is cooler than it really is. Since the ECU enrichens mixtures when the engine's cold, this hack has some limited ability to tune mixtures. It's a proven technique that's been around for ages.

However it is extremely crude, because the changes apply thoughout the rev range, so if you're trying to fix lean top-end mixtures, you'll end up rich everywhere else.

You're crazy to pay any money to some eBay scammer for this, because the components can be bought from any electronics shop for a few cents and instructions to do this are easy to find on the web. You're also crazy to try this without someway to measure mixtures, because you have no idea what effect you're really having.

 

thats what i was saying, NZ, i dont wanna buy it, i wanna know what size resistor to use. i suppose you are right about getting a a/f guage b4 i do this tho...

Pat