ICP Resistance Mod Results
#18
#20
Personally, I would NOT run a resistor and a chip. That doesn't mean you can't; it just means I don't know if it's a good idea or not. That might cause problems somehow.
I think the next Dyno Day is in August. We meet on the 4th Wednesday of every month for dinner at the chinese buffet in Caldwell. The website is IdahoTurboDiesels.com - I use the same screen name there that I use here. If you want to join that site, too, use me as a referral. It's free to join and they have events of one kind or another going on all the time. They're mostly Dodges and Chevys, but there's a few of us Ford guys, too.
#22
#23
Joe said to splice into that wire, so that's the way I did it.
#24
I extended the wire so there wouldn't be a lot of strain on the resistors when installed. Someone added resistors to a multi-position, two-pole, rotary switch and installed that into an old prescription bottle and zip-tied inside the engine compartment.
I'm considering doing this, too. I plan on extending the wires to install the switch inside the cab. With the switch installed inside the cab I can switch resistors without opening the hood.
I'm planning on replacing my downpipe, exhaust, flexplate, TC, and tranny and adding gauges before the next Dyno Day so I can run all the resistors again.
#25
#26
I'm very happy with this mod this way. I would be interested in seeing if there's a difference between the two setups. If I can scrounge up another ICP from the junkyard or somewhere cheap, I might give the "traditional" way a try.
I extended the wire so there wouldn't be a lot of strain on the resistors when installed. Someone added resistors to a multi-position, two-pole, rotary switch and installed that into an old prescription bottle and zip-tied inside the engine compartment.
I'm considering doing this, too. I plan on extending the wires to install the switch inside the cab. With the switch installed inside the cab I can switch resistors without opening the hood.
I'm planning on replacing my downpipe, exhaust, flexplate, TC, and tranny and adding gauges before the next Dyno Day so I can run all the resistors again.
I extended the wire so there wouldn't be a lot of strain on the resistors when installed. Someone added resistors to a multi-position, two-pole, rotary switch and installed that into an old prescription bottle and zip-tied inside the engine compartment.
I'm considering doing this, too. I plan on extending the wires to install the switch inside the cab. With the switch installed inside the cab I can switch resistors without opening the hood.
I'm planning on replacing my downpipe, exhaust, flexplate, TC, and tranny and adding gauges before the next Dyno Day so I can run all the resistors again.
#30
Update
Stock 137.9 / 310.3 16.5 MPG
4.7K 130.9 / 310.3 N/A
5.6K 142.2 / 334.5 Not calculated
10K 126.1 / 288.5 N/A
14.7K 163.0 / 340.7 17.7 MPG
20.3K 168.7 / 398.4 (16.85 MPG) <---
25K 126.7 / 297.7 N/A
Looks like the 14.7K is the best for MPG and the 20.3K is best for HP/TQ. I guess I need to build a switch and install it in the cab.
4.7K 130.9 / 310.3 N/A
5.6K 142.2 / 334.5 Not calculated
10K 126.1 / 288.5 N/A
14.7K 163.0 / 340.7 17.7 MPG
20.3K 168.7 / 398.4 (16.85 MPG) <---
25K 126.7 / 297.7 N/A
Looks like the 14.7K is the best for MPG and the 20.3K is best for HP/TQ. I guess I need to build a switch and install it in the cab.