i was in radio shack the other day and they had two different 10k ohm resistors, a 1/4 watt and a 1/2 watt. does this watt rating effect resistance? does anybody recommend one over the other?

It is probably the max wattage the resistor is designed to continously handle but I'm guessing.

1/2 Watt worked for me. 10k 1s 10k 1/2 watt will just last longer.





JustinEdited by: justin25taylor

Justin,


Now that you're making more boost you should think about exhausting that boost.


Did you see the crimped downpipe pictures? The summit/flowmaster kit(downpipe/crossover) is the cheapest I've seen at less than $90. I paid $170 just for my 3" downpipe.

I did Quantam I need to order one soon.


Thanks,


justin

Just wondering if anyone has the directions as to how to install this resistor.

www.dieselplace.com/forum/forum_posts.asp?TID=6834&PN=10 (http://www.dieselplace.com/forum/forum_posts.asp?TID=6834&PN=10)


www.dieselplace.com/forum/forum_posts.asp?TID=11366&PN=6 (http://www.dieselplace.com/forum/forum_posts.asp?TID=11366&PN=6)


These should help. soder a 10K ohm fixed resistor on the green "b"wire off the map.





Edited by: quantum mechanic

I just installed the fixed 10K resistor and a 10K linear taper pot. I can feel a big difference with just the 10K fixed and variable turned to 0, but no change using the variable pot.


With just the fixed resistor my boost is up about 2 psi throughout the range. It will still initially go to 15 but under full excel after about 1 sec. it drops to 7-8 psi. Why does it do that? It is just pulling hard then seems to fall off. If I keep it just off full throttle it will only drop to 10 psi. I was hoping for more definite control over boost using the variable pot but maybe anything over 10K is just a waste?


I really like the SOP difference I feel and it even seems to run cooler. I did not get any rise in coolant temp after several full throttle blasts, but it was only about 80 degrees outside at the time.


I am still waiting for my intercooler to arrive so I hope that it will make a difference on those long hills and the increased boost.

With a scanner or even a multi meter you can read the MAP volts. The linear resistor should resist volts .02 (key on) pot should drop MAP volts by .23v. If wired backward pot won't do anything. The pot has an off on right? Well the post the off is closest to is where the signal comes in and the middle post is where it goes back to the harness.

does anyone sell a variable boost fooler that plugs in so you dont have to cut factory wire looms? I want something that easily reverts back to stock in the event i dont like how it runs. i have a fairly stock truck and dont want to burn anything up by running too much boost. all im looking to do is run at 10 lbs regularly without the wg kicking

Yes Kennedy Diesel , open exhaust, and down pipe for best result first, gauges are cool to watch and let you know when you need to back off or are starting to have problems.Edited by: Turbine Doc

It is a 10k ohm resistor and not just a 10 ohm resistor right?

Yeah, 10K ohms, 10 ohms wouldn't do much.

The pot has an off on right? Well the post the off is closest to is where the signal comes in and the middle post is where it goes back to the harness.


I don't think it has an off/on. It just goes from 0K-10K on a dial with a 300 degree sweep. I got it from Radio Shack. I am assuming that the post closest to the left is the low side. But I will need to rewire it because it has three posts and I connected the two outer posts. I will have to reconnect the right connector (looking at it clockwise) to the center post.

That's the way I did it and I had the scanner looking at volt signal when I did it to verify resistance was even through the sweep.

I reconnected everything and I still have no change using the pot. I have even reversed the input and return line to see if they were wired wrong but I am still not getting any change in boost by moving the dial. It will still initially go to 14-15 under hard throttle but then drops to 7-8 after a second and max boost is still 10 psi with convertor locked.


Have I done something wrong? I would like to be able to up the boost to 12-13 once my intercooler is installed.

The only way to check it is as I described. A multi meter ang aligator clips might be best to see what volt changes if any occur. I bought one pot so far from radio shack that was DOA. I took it right back and the guy sai he wouldn't give me my $4 back because I sodered it in. I thought that was crap but there arn't that many places that carry electrical parts with that many store fronts.