I installed my Unorthodox Racing UDP last Thursday (3-6), I had attempted the install the week before but was held up because of a stubborn crankshaft bolt and lack of proper tools. I did come up with a few tips that may help others on this install, I’ll list my tips first.

• Have the proper tools (Duh.) Other than a socket set and wrenches --
  A ½” drive 18” long breaker bar and ½ drive 19mm socket (if you don’t have an impact wrench)
  Several long extensions (for getting at the adjustment bolt on the power steering pump.)
  Universal swivel attachment (ditto)
  A good penetrating oil (not WD40), I used PB blaster (it smells so bad it must do something :P)
  Ratcheting wrenches are helpful but not absolutely necessary
• Spray some penetrating oil on the crankshaft bolt a few days before you do the install to let it soak in.
• Get the car good and high to give yourself room to work (safely of course)
• It is possible to lock the brakes without a helper (5speed, see below)
• I used a power drill attachment to turn the power steering adjustment bolt. (see below)
• If you push the brake pedal down the brake lights stay on, even when the ignition is off.
• Do not do the install outside when the temp is in the low teens and it is snowing :/

Thursdays are my day off so I planned on installing my UDP on Thursday the 6th. I had checked the weather report a few days before and the forecast was clear and upper 30s. When I went out Thursday morning it was in the low teens and looked like snow, but I pressed on (there was 4” on the ground when I was done)–

After being held up the week before by a stubborn crankshaft bolt I went out and bought a ½” drive 18” long breaker bar and some PB blaster (A penetrating oil). I had sprayed some PB blaster on the bolt a few days before and I sprayed some more on it just before I attempted to loosen it. I was shocked when the bolt came loose with a few tugs on the breaker bar. My car is a 98 with almost 100k miles in New England and this is the first time the crankshaft bolt was removed. I didn’t have a helper available to step on the brakes but I got creative (Remember the brake lights stay on when the brake pedal is pushed and will kill your battery)-

The hardest part for me was getting to the adjustment bolt on the power steering pump. You need a universal swivel and one or more long extension bars. I could only find one of my extension bars (long story) so I barely had room to work the socket handle back and forth. The adjustment bolt requires lots of turns to move the PS pump any distance and I had to move it from near it’s farthest adjustment point to its closest - it was taking forever. I have an adapter that lets me use my cordless drill to drive sockets, with this I moved the PS pump to its closest adjustment in less than a minute. My ratcheting wrenches made loosening the locking bolts on the PS pump and idler pulley a snap. Removing the oil seal took quite a bit of prying but that could have been due to the cold temperatures. I sprayed some belt dressing on the belts as a preventive measure and there is no squeeling or slipping of the belts.

Driving Impressions
There is definitely a modest but noticeable power gain across the entire RPM range and the gain in the lower RPMs (2000-4000) is unmistakable. The throttle feels like it needs the lightest of touches to accelerate during normal driving in 2nd and 3rd gear. The low end gain would do little or nothing at the track but for around town driving it is fantastic. I would definitely recommend this Mod to anybody. I did not notice any problem starting off smoothly with my 5 speed like some have mentioned.

Now low teens now thats a maxima Lover!

You Yankees are such animals. I don't see how you do anything with all that snow except stay in bed.

do you hear any weird sound went you start your car up??just got my in stall tuesday and i only get this very loud sound went i start up the car..

Wow... Now that is some mod dedication. nor rain nor snow or shine. You'll get down and dirty for mods

It's more likley that I am a , when I saw the wheather was going to be decent on my day off I had my heart set on installing the pully. When the weather turned out to be worse than I expected I had already decided I was going to do it that day. This thread is somewhat responsible for my eagerness to install the UDP.

There are no strange noises at startup or any other time with the UDP. If it the noise is from the belts (screeching or squeeling noise) they could need to be tightened, or perhaps some belt dressing would help.

I have a digital voltage gauge and did notice at idle with lots of accesories turned on somtimes voltage would drop below 12 volts. However under all other driving conditions my voltage is the same as before the UDP. I am pretty sure my battery is on its way out, so that could be part of the problem.

devotion! i know the feeling. i was outside in december changin my oil... but that doesnt compare. i plan on adding the UDP to my mod list this summer, along with headers, y-pipe, and cat-back. i want so much to do it all at once and feel some crazy gains... glad to hear that the UDP is worth it though!

deeng foo it looks like a work for spring break except it's like christmas...gotta give it to the yankees hahaha

Would that noise by any chance be a a squeaking noise that gets louder as you accelerate? (I just had my UDP taken off)

yes that is the noise i was talking about but i only hear it went i start my car..

I was a little skeptical about tackling the install of my pulley, but I got some new air tools and will pick up some extensions...
should go nice and smooth, hopefully

sweet. I can't believe anyone is that hardcore lol. I drove my azz home, parked the max in the garage, and put on a nice, warm, fuzzy sweater.

THis weekend I'll be doing a bunch of maintenance things.

nice write up. I have the UDP also and was concerned about low voltage at idle with a/c, lights, etc on but it was not the case with me.

WOW install in the snow...not sure if you are nutz or just mod nutz....maybe both?

Anyway great job

I will never complain about working on my car in my cold garage (35 - 50 degrees on some days) again.

You have dedication!!!

Anesthesia for the car?

When I had mine removed it turned out that the belts were loose. I was losing horsepower too. Apparently the guys who originally installed it goofed....and I had to replace a $60 part...

What Oil seal did you have to remove? Did you replace it with a new one, or it had to be removed to install the UDP?

The Crankshaft oil seal, it is recommended (by Nissan) that you replace it when you remove the crankshaft pully. It is an $8-10 part, just a rubber ring basically.