Car and Driver!!!

Tim C · 11-04-2001, 07:24 PM

Mercury asked me to explain how the resistor is set up, so here goes:

Easy way to set it up: go to radio shack and get a 56K (That's 56,000) ohm resistor or a series of resistors that equals close to 56K, such as 22K + 33K. Cut either wire going to the air temp sensor (near the mass air meter), and solder the resistor in to the wire and tape or heat shrink over the bare wire. (If you use a combination of resistors, solder them in series in a line, like christmas lights.) Clear the computer (Fuse 21, 5A on 99+ cars) and let it rip. You may need higher octane gas, especially in the summer to prevent spark rattle.

Harder setup: Cut the same wire described above, and solder into it an inline blade type fuse holder. (At radio shack, you can get one that has a little rubber cap over the fuse and will hold a plastic colored blade fuse, not a glass fuse.) Then buy some of small spade terminals small enough to stick where the fuse goes. Then solder the 56K or combination (22K+33K+1K) into the terminals, along with say a 47K, and a 33K resistor, cover the bare wires with heat shrink or electrical tape, and mark them so you know what the combination is for later. Then you just plug the resistor of your choosing, into the fuse holder. Clear the computer (Fuse 21, 5A on 99+ cars), and go. If you experience spark knock on a hot day, you can put in a smaller resistor, or for emmisions testing, just put a good fuse in the holder, completeing the circuit.

I run 89 octane with mine with no rattle even on 90+ degree days with a 56K resistor. It basically keeps the timing bumped up and richens the mixture. It is more noticable on hot days (when cars seem to have least power anyway) because the amount it helps is less the colder it is out. On a 90* day the computer thinks its 50*, on a 50* day the comp. thinks it is 32*, 32*=15*, 15*=5*, 5*=-5*.

By the way, the resistor, the h-pipe, and the 4.10s gave me the biggest seat of the pants feel, although the homemade ram air did as Mercury pointed out help alittle at higher MPH.

Good luck,
Tim

------------------
99 35th Anniversary Edition GT (Scoop on the sides and the hood, billet aluminum shift knob, special floormats, special rims), Black and Silver leather interior, Mach 460 Sound, 5 speed, Flowmasters, K&N Filter, Steeda Triax Shifter, Flowtech H-pipe (hopefully gears soon)

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11-04-2001, 07:24 PM	#1
Tim C Registered Member Join Date: Jul 2000 Location: Fayetteville, NC, USA Posts: 68	Mercury asked me to explain how the resistor is set up, so here goes: Easy way to set it up: go to radio shack and get a 56K (That's 56,000) ohm resistor or a series of resistors that equals close to 56K, such as 22K + 33K. Cut either wire going to the air temp sensor (near the mass air meter), and solder the resistor in to the wire and tape or heat shrink over the bare wire. (If you use a combination of resistors, solder them in series in a line, like christmas lights.) Clear the computer (Fuse 21, 5A on 99+ cars) and let it rip. You may need higher octane gas, especially in the summer to prevent spark rattle. Harder setup: Cut the same wire described above, and solder into it an inline blade type fuse holder. (At radio shack, you can get one that has a little rubber cap over the fuse and will hold a plastic colored blade fuse, not a glass fuse.) Then buy some of small spade terminals small enough to stick where the fuse goes. Then solder the 56K or combination (22K+33K+1K) into the terminals, along with say a 47K, and a 33K resistor, cover the bare wires with heat shrink or electrical tape, and mark them so you know what the combination is for later. Then you just plug the resistor of your choosing, into the fuse holder. Clear the computer (Fuse 21, 5A on 99+ cars), and go. If you experience spark knock on a hot day, you can put in a smaller resistor, or for emmisions testing, just put a good fuse in the holder, completeing the circuit. I run 89 octane with mine with no rattle even on 90+ degree days with a 56K resistor. It basically keeps the timing bumped up and richens the mixture. It is more noticable on hot days (when cars seem to have least power anyway) because the amount it helps is less the colder it is out. On a 90* day the computer thinks its 50, on a 50 day the comp. thinks it is 32, 32=15, 15=5, 5=-5*. By the way, the resistor, the h-pipe, and the 4.10s gave me the biggest seat of the pants feel, although the homemade ram air did as Mercury pointed out help alittle at higher MPH. Good luck, Tim ------------------ 99 35th Anniversary Edition GT (Scoop on the sides and the hood, billet aluminum shift knob, special floormats, special rims), Black and Silver leather interior, Mach 460 Sound, 5 speed, Flowmasters, K&N Filter, Steeda Triax Shifter, Flowtech H-pipe (hopefully gears soon)