mwc951

Finally got my injectors. Got ballast resistors from Newark.
Can't find good & reliable instructions for wiring in the resistors. Not sure of the pin positions or the color of the wires(gray and gray/black?). Can anyone give me detailed instructions how to go about splicing in these resistors?

Most appreciated!
mwc951

Ski

14 and 15 off the DME. 14 for injectors 3 & 4, 15 for 1 & 2. 14 grey wire, 15 grey w/ black stripe.

mwc951

Thanks much Ski!

J Chen

Just look for the two wires & cut it at a convenient
location. Don't forget to prepare some heat shrink
tubing to cover the solder joints.

Epic2112

I assume if you splice them into wires 14 and 15 they would reside in the passenger footwell? Is there a way to splice them in closer to the injectors or something so that tey could be mounted underneath the hood with a nice big heat sink?

David Floyd

But it is nice and cool in the footwell, compared to the heat of the engine bay.

mwc951

As I've been doing my homework for this project, I came across an old post where someone mentions that Talons & Eclipses have a slick setup where the OEM ballast resistors are mounted to a large heat sink attached to the firewall in the engine compartment. I have not had a chance to head out to a junk yard to see if i can find one.

Sam Lin

There are a lot of pics on the net of the Talon resistor pack so you have a good idea what to look for - they're readily available.

Sam

J Chen

Hey Mwc,
The resistor in my case is only 1 ohm in value.
With such low resistance, the heat generated
is minimal as long as the wattage of the resistor
is high enough, heat should not be an issue at all.

mwc951

Cool(literally)!
Thanks for all the good info.
Should I solder the resistors to the DME harness or use spade connectors like the Guru units?

J Chen

Either will do. If you choose to use spades,
makesure it has a tight fit.

Epic2112

Ummm, good point.

NZ951

Here are mine, they are sequentially setup and have pretty huge heat sinks on them and are on a ally plate. There are zero temp issues with these in the bay. I would have preferred these to be in the foot well, but it was not feasible.

Bri Bro

I hate to be the naysayer on this thread but I don’t anyone to make a safety issue on their installation. Power resistors will get very hot if not properly heat slinked. One manufacturer of the 1 ohm 25 watt resistor clearly states that a single resistor has to be on a 5x7 heat sink. I have burned skin off my hand with a 25 watt resistor…very hot. If anyone wants me to, I can run power vs. temp measurements and post the results of how hot these resistors get without a proper heat sink.

If you want to place the resistors in the engine bay..no problem. There are charts that de-rate the resistor power vs. temperature. So instead of a 25 watt resistor, you use a 50 watt resistor. Again, I can do the tests to determine the proper value.

David Floyd

Brian, I am up for any info you can give. I am ready to install mine, they are rivited to a 3"x4" aluminum 1/8" plate, will this be ok ? If I mount in the footwell it should be away from any carpet ??