#1 Cheapest, best performing, most gains noticeable mod for the Ranger.
A/C Bypass Switch:
Hands down.. you -need- to do it if you have air conditioning... This thing is amazing! Just did it last night, and it really wakes the engine up when your wanting to cruise down the road and dont need the A/C - but want your cool air still blowing through. The Freon in the air conditioning still chills the air thats being ran through it - not as much as runnign the compressor.. but more then enough to provide a cool environment.
*Free's up Horsepower
*Cures the engine "pulsing" when the A/C clutch kicks in
*Improves MPG's by freeing up engine drag... just like an underdrive pulley kit, and clutch fan delete. (If switch is turned off)
How it works: You make a cut in the line that sends the signal for the clutch to kick in and get the compressor running, then install a simple switch to flick it on or off - a rocker switch, some simple electrical connectors, and a few feet of wiring only runs about $5 and this is simple the most noticeable gain you will get for the price, and small amount of time put in.
I'll say it agian.. if you havent done this yet - pull off that front panel, and do it! I can promise you won't regret it - I personally ran the switch through my glove compartment as it wont be switched on and off all the time.
I also verified - if you are using an LED rocker switch, the signal being sent through the switch isnt enough to light up the LED sadly - You are better off just going ahead and using a base line rocker with no special gimmicks.
DO IT! NOW! It takes 15 minutes if you have your tools ready, 30 minutes if you gotta dig through and find the bits and stuff.. sooo stupid easy you'll regret never having done it!
Scangauge is as good as the odometer style MPG guessers.. I don't really trust them too much - as there are way too many figures to be runnign the guesswork - I do the ol fashioned gas station MPG test - proper math, lol..
I'm not worried about MPG myself.. I realize that through my driving habits, I usually get 12/13/14 miles per gallon, since most of my driving is in city - This is just one of those mods that is guarenteed mileage because of the less engine drag - of course - if you drive with the compressor in the off position, it wouldnt change much - but I like the defrost/foot setting, this lets me not have to have the compressor on for it :-)
cool ill have to ask my buddy to help me with this. tomorrow i might do this
Its actually pretty simple - If I feel up to it.. I coudl honestly make a video to show the cable needing cut, and where I mounted my switch - just need a crimper, some electrical connectors, wiring, and a switch.
Just a hint - if anyone is looking for a ground for there switch - just splic into the ground for the cigarette lighter.. easy location to get to.. I jsut used one of thsoe press splices and some electrical tape to get a ground.
Basically you are adding a recirculate function and a a/c button because for some reason most American cars don't offer these functions.. Normally the AC pump cycles on and off when you have the selector in any position(yes even with the heat on) other than off, face or floor. When you want the a/c on just close the switch.
Last edited by whippersnapper02; 08-22-2009 at 01:03 PM.
For summer, there isnt much of an issue - I suppose if you live in a florida style place with extreme humidity.. there may be an issue - but I personally dont think it woudl be taht bad inside teh cab.. its easy to jsut switch it on for a few minutes if needed as well
so the switch actually kicks the compessor on, but when the vent is on it blows are through the coils which makes it cold also, without the compressor? but without the switch mod, and u turn it on lets say feet area, its warm kinda air, will it still do the same, how come air doesnt flow through the coils on vent?