Im going to remove the a/c this week and have the Unorthodox Racing UDP. From what I can gather you need to replace the belt with a 36" serpentine belt for the stock pulley. Anyone want to take a stab at what I would need with the UR UDP ?

Would a 6 rib 33 5/8" belt do the trick ? Just looking for anyone who has a UDP and removed the a/c ?

 

Ceaser I am running a 33" - 4 rib (less friction) on mine and it could be even a bit shorter by the looks of it.

 

4pk858 is what i use. But that is with the UDP

 

With no ac and a udp i used a gates "33.1

 

how important are the ribs ? from what i can read, i guess you are supppose to match the belt with the number of ribs from the belt that came off the car. And not sure if im reading this right but the more ribs the longer the belt will last, and better it works ? Not exactly sure on that. looks like however many grooves you have in your pulley, is how many ribs your supposed to have in the belt.

also will have to convert inches to centimeters? lol !

 

do you recall how many ribs the belt had ?

 

Ceasar the pulley calls for a 6 rib belt. The more ribs are mainly for the combined load of the A/C and Alt. However if you remove one of them then you should be safe with a smaller width belt. The 4 rib will easily run the Alt and will rob you of less HP than the wider 6 rib. I run mine in the center with 1 unused rib on each side.

The whole idea of removing the a/c is to save HP so continue the theme by using a narrower belt.

 

jime that make great sense. will have a look. is it the condenser that sits in front of the radiator ? how does that thing come out ? man im a sad case ! LOL !

 

I used a 6 rib but won't be this year when i use the stock pulley.I will be going with the 4 rib.Yes its the condensor infront of the radiator. Remove the fans and radiator and there will be a couple 10mm bolts holding the condensor in.

 

i thought this was an easy removal kinda thing ? in total am i looking at 2 hours worth of work ? im going to do what jime suggests and fit a 4 rib.

 

It's easy but will take some time. With the fans and radiator removed will also give you more room to get the compressor out. It won't be needed but will be helpful. This would be a good time to change your coolant and raditor hoses if it hasnt been done in a while.

 

rockford does the whole radiator have to be removed ? or is it possible to loosen it up and work the compressor out ? heck i might not have time to get this done before my next race, im going over to my uncles (on wifes side) and cousin. My wifes Uncle is the head mechanic at the Honda Dealership and his son works there as well. I was trying to get as much information as i could and have the belts picked out to slap on the car.

dang, after a hard days work i hope this wont be a long and drawn out kinda thing, since they are doing me a favor and teaching me along the way.

its easy to see i dont have any automotive/mechanical knowledge, lol but slowly learning and have a great opportunity to start learning with very knowledgable relatives over here.

at the end of the day, what is a mystery to me will be a piece of cake for them, so i will grab a few belts hopefully will get the right one, take over the haynes manual and some photos jime posted up for me a ways back and that should be enough to get this done. Should be three of us on the project so maybe all will go pretty fast.

that evaporator is still a mystery, i hope i can get that out sucessfully as well. while the weight reduction isnt tremendous, it will add up in the long run when my seat arrives (-25 lbs) and carbon fiberhood project is finished (-30/35 lbs guessing). with the a/c gone this should get me close to another 80/90 lbs off the car which presently weighs 2,675 lbs. without driver.

i appreciate all the help, just trying to do as much as i can sense they are willing to help tutor me along and pull the a/c.


on the radiator will it have to be drained so to speak and refilled ?

 

To take the compressor out the radiator doesn't need to be touched. Only the for the condensor.It may be possible to remove the condensor with just loosening the radiator but i would just remove it all togethor.Draining the system is very easy.There is a petcock on the bottom of the radiator to drain it.All this is not a hard task to do at all.I would say the hardest part would be getting the belt on and tightning it. So if you can do that you can do the rest.

 

Saving weight, yes. More HP, no.

 

so what happens when u turn the ac on? jus blowing outside air in?

and caesar, is your car not your daily driver?

 

so you dont gain ANY horsepower by taking the A/C off the belts?

 

No. But who in their right mind races with the a/c on?

 

The a/c pulley with the clutch disengaged offers negligible resistance. Removing the a/c is a legitimate weight savings mod, nothing more.

 

well you cant really call it a daily driver anymore, its my ride, but now that I have moved to New Zealand, I dont drive the car half as much. Yesterday I paid $6.19 cents a gallon for gas, so you can understand why people here either have a very small 1.x liter engine or find other methods to save on fuel. Or simply just dont drive at all. We recently bought a car for daily driving purposes and it was a 97 model with like 60,000 miles on it.


with the mild climate here and the cost of fuel, i have used my a/c for 10 minutes in over a years time. So I usually let the car sit, and take the occasional cruise or joy ride. If I still lived in Mississippi this would never be an option.

so basically i am working on a 5-7 month project to pull another 100 lbs off the car. the a/c will be the first step as I wait for my racing seat to arrive, which is part 2, lol !

another big motivation is the all motor class that i race in here in NZ. Every little thing helps to be competitive. by Novemever I should have more weight off the car and the OOVI finished. I plan on running this setup until the engine gives up on me. When that happens Im hoping the VQ35DE here in NZ will have dropped in price as my last quote was 5,000 for the engine.

So yeah, pulling the a/c wouldnt be a very popular thing to do for most maxima owners, im in a unique situation.

here is my daily driver: http://www.cardomain.com/ride/2300180

 

nismo thats funny about the a/c i have superstitions when i race and for some reason turn on the a/c put it on 77 and then turn it off. no idea why ? but it has to be on 77 ! LOL !

 

Dunno if it helps, but the Nissan part # on the world-market A32 without AC belt is 11720-31U02. You may want to see if your local dealer has it- if the adjustment slot is long enough, the UDP might not be a problem.

 

well got the a/c out today. I removed everything minus the evaporator. In total all the parts weighed 26 lbs.

Not sure on the correct term but the tension rod ( see photo ) seemed to be striped and eventually snaped in half. Was able to take a screw and bolt setup and weld it together for a short term fix.



Used a Gates 4PK850 serpentine belt 85 centimeters or 33.4 inch. took longer than expected with that piece snapping in half. but glad the job is done. i hope the quick fix so to speak on that tension rod will hold for about a 320 mile round trip to the drag strip and then back to the crib.

the engine bay sure is clearing out, which i like !

thanks to everyone on the info to help me get this project completed !

 

I assume you loosened the nut on the front of the pulley. I forgot to do that to frosty's 96 and snapped it in half. I hate dealing with belts. One reason I don't want to SC my car.

 

 

 

so what belt did you go with?

 

Gates 4PK850
Length: 85 centimeters or 33.4 inch

 

Engine is looking real nice. I'm sure once you put the 00VI in your going to be more competative than ever.

 

Glad you got it all out. How long did it end up taking you? Like i said the hardest part would be tightning the belt.LOL You will be ok with the fix on that rod. That is just used to tighten the belt. So when the belts tight and the 14mm nut on the side gets tightned down then the rod doesn't have any effect.
Engine bay is looking clean. I should post pics of mine as well. Theres pretty much only a motor in mine. No wipers,cruise control,emissions/evap,power steering,coolant lines to heater core,air conditioning

 

man im kinda on a the down side of things today, got back from the race of course the NHRA correction factor for the track is .18, so the times are always slow. I have ran at least three runs where i would have gotten a 13.8 but have no proof on paper. that was my last attempt to maybe hold some records with USIM.

i got flat out destroyed by a low 12 second rotary powered car, really makes me feel like just passing the whole oovi and going 3.5 swap.

 

What is the usim record for na?
You just got to remember that there will always be faster cars. I'm sure we all go thru this. I know i do then i realize my car is very quick for what it is.

 

well i dont know the answer to that, my fastest run is 13.97 with it and highest trap speed 99.76 mph ? thats all i know with my setup