5th Generation Maxima (2000-2003) Learn more about the 5th Generation Maxima, including the VQ30DE-K and VQ35DE engines.

UDP ?'s

Thread Tools
 
Search this Thread
 
Old Jul 1, 2001 | 10:58 AM
  #1  
nc00max
Guest
 
Posts: n/a
I've finally decided upon a UDP as my next mod, and I did a search already, but I still have some questions. First, I just wanted to make sure that gas mileage wasn't affected any. Mine's been bad enough lately as it is. 2nd, should I trust it to a local (VA Beach) mechanic or take a short trip to NY to have the shop (Unorthodox) install it. 3rd, I've heard all sorts of stuff about extra low-end, but there's no high-end trade off, is there? And last, my dealer whines enough about stupid **** like my OSCAI and FTSB, what's a UDP going to do to my warranty? Thanks!
Old Jul 1, 2001 | 11:01 AM
  #2  
2000 SE's Avatar
Senior Member
 
Joined: Jun 2001
Posts: 676
Originally posted by nc00max
I've finally decided upon a UDP as my next mod, and I did a search already, but I still have some questions. First, I just wanted to make sure that gas mileage wasn't affected any. Mine's been bad enough lately as it is. 2nd, should I trust it to a local (VA Beach) mechanic or take a short trip to NY to have the shop (Unorthodox) install it. 3rd, I've heard all sorts of stuff about extra low-end, but there's no high-end trade off, is there? And last, my dealer whines enough about stupid **** like my OSCAI and FTSB, what's a UDP going to do to my warranty? Thanks!
I had the same concern! I don't know how mod friendly dealers are. I know with my Mustang GT, the Ford dealers just accepted the mod scene.
Old Jul 1, 2001 | 12:06 PM
  #3  
y2kse's Avatar
Supporting Maxima.org Member
iTrader: (1)
 
Joined: Sep 2000
Posts: 4,728
From: City of the Fallen Angel, CA
Originally posted by nc00max
I've finally decided upon a UDP as my next mod, and I did a search already, but I still have some questions. First, I just wanted to make sure that gas mileage wasn't affected any. Mine's been bad enough lately as it is. 2nd, should I trust it to a local (VA Beach) mechanic or take a short trip to NY to have the shop (Unorthodox) install it. 3rd, I've heard all sorts of stuff about extra low-end, but there's no high-end trade off, is there? And last, my dealer whines enough about stupid **** like my OSCAI and FTSB, what's a UDP going to do to my warranty? Thanks!
Get a black UDP and your dealer probably won't even notice it's attached.
Old Jul 1, 2001 | 12:27 PM
  #4  
Weasel's Avatar
Supporting Maxima.org Member
iTrader: (2)
 
Joined: Dec 2000
Posts: 4,396
From: Tampa, FL
Originally posted by y2kse

Get a black UDP and your dealer probably won't even notice it's attached.
If his dealer complains about the OSCAI and FSTB, if they find that, he's going to have to get a new dealer. They won't honor the warranty on engine parts.
Old Jul 1, 2001 | 07:08 PM
  #5  
Desert Pearl's Avatar
Senior Member
 
Joined: Jan 2001
Posts: 308
Originally posted by y2kse

Get a black UDP and your dealer probably won't even notice it's attached.
Just be sure not to take your car to the dealer to have your belts replaced!

Actually the install isn't that hard. Are you sure you want to pay to have someone do it for you???

The UDP should help your gas mileage, providing you drive it the same as you did before installing it. I have a hard time keeping my foot out of mine, so my mileage isn't as good as it should be either.

The UDP should give a HP gain across the RPM range. The HP gain from an UDP is because the pulley is smaller, thereby underdriving your accessories and also because it is lighter than the stock pulley. Neither of these gains go away at higher RPM, so the benefit should still be there.
Old Jul 1, 2001 | 07:28 PM
  #6  
nc00max
Guest
 
Posts: n/a
Originally posted by Desert Pearl

Actually the install isn't that hard. Are you sure you want to pay to have someone do it for you???

The UDP should help your gas mileage, providing you drive it the same as you did before installing it. I have a hard time keeping my foot out of mine, so my mileage isn't as good as it should be either.
I don't really trust myself all that much, but I think if I found someone near me here who knew more about it than me, I might attempt it. As far as my gas mileage goes, I've always been pretty rough on the gas pedal, so there shouldn't be any difference. If it actually increases gas mileage, then I now have my excuse to buy it tomorrow.
Old Jul 1, 2001 | 09:18 PM
  #7  
bullseye's Avatar
Senior Member
 
Joined: Oct 2000
Posts: 866
Originally posted by nc00max


I don't really trust myself all that much, but I think if I found someone near me here who knew more about it than me, I might attempt it. As far as my gas mileage goes, I've always been pretty rough on the gas pedal, so there shouldn't be any difference. If it actually increases gas mileage, then I now have my excuse to buy it tomorrow.
I got my UDP from Unorthodox about a year ago. My mechanic installed it in about an hour or so. It's black, so it's low-profile. The engine accelerates more quickly, and also decelerates more quickly than stock. No problems with the electric/battery/alternator. The dealer has never mentioned they even noticed the darn thing. Good mod.
Old Jul 1, 2001 | 10:57 PM
  #8  
2kseman's Avatar
Senior Member
 
Joined: Mar 2001
Posts: 419
Have all the right tools...

if you're gonna install it yourself...I cracked the socket trying to loosen the freakin nut...it is tight. To make a long story short, I ended up taking the car to garage..thank you Mr. Impact wrench.

The underdrive pulley does it's job through out the rpm range, like D/Pearl mentioned. It's not a WOT thing but rather constant, so your return on this mod(investment), is all the time. Mine is black, and you could hardly tell the diff.(visually), between the two once it is installed, however, you will feel the quicker off the line..

Get it! and No, I do not work for Unorthodox!
Old Jul 2, 2001 | 04:22 AM
  #9  
UMD_MaxSE's Avatar
Got Bent?
iTrader: (1)
 
Joined: Sep 2000
Posts: 11,516
The UDP will probably be my next mod.....
Old Jul 2, 2001 | 12:10 PM
  #10  
sleepermax's Avatar
Donating Maxima.org Member
iTrader: (5)
 
Joined: Jun 2001
Posts: 548
Originally posted by UMD_MaxSE
The UDP will probably be my next mod.....
UMD_MaxSE - How's your y-pipe install go?
Old Jul 2, 2001 | 02:08 PM
  #11  
UMD_MaxSE's Avatar
Got Bent?
iTrader: (1)
 
Joined: Sep 2000
Posts: 11,516
Originally posted by sleepermax


UMD_MaxSE - How's your y-pipe install go?
BAD! I spent 4 hours under my car Saturday. I got down to one bolt on the front flange that I could not get off no matter what. I tried everything. So, I put it all back together and took it to a shop today. It turns out that the bolt I could not get off had its threads stripped. They had to use a propane torch to cut it. Oh well though, the pipe is on now. Definitely feels stronger, though I didn't get a chance to put my foot into it yet because of traffic. I have a slight buzzing noise, any suggestions for that?
Old Jul 2, 2001 | 05:23 PM
  #12  
sleepermax's Avatar
Donating Maxima.org Member
iTrader: (5)
 
Joined: Jun 2001
Posts: 548
Originally posted by UMD_MaxSE


BAD! I spent 4 hours under my car Saturday. I got down to one bolt on the front flange that I could not get off no matter what. I tried everything. So, I put it all back together and took it to a shop today. It turns out that the bolt I could not get off had its threads stripped. They had to use a propane torch to cut it. Oh well though, the pipe is on now. Definitely feels stronger, though I didn't get a chance to put my foot into it yet because of traffic. I have a slight buzzing noise, any suggestions for that?
That sounds like it was a pretty frustrating Saturday. I found that the buzzing diminishes somwhat after a few days. I suppose you have to allow the flex pipe to "break-in" and become more flexible. I also tried to manually move it around some when installing the y. I also noticed a huge reduction in the sound level when I attached the y to the rubber mount before the pre-cat. The Stillen y is poorly designed regarding this and most people have to modify the flange to attach it or leave it off altogether. Did you have this prob with the Cattman y?
Old Jul 2, 2001 | 07:25 PM
  #13  
UMD_MaxSE's Avatar
Got Bent?
iTrader: (1)
 
Joined: Sep 2000
Posts: 11,516
Originally posted by sleepermax


That sounds like it was a pretty frustrating Saturday. I found that the buzzing diminishes somwhat after a few days. I suppose you have to allow the flex pipe to "break-in" and become more flexible. I also tried to manually move it around some when installing the y. I also noticed a huge reduction in the sound level when I attached the y to the rubber mount before the pre-cat. The Stillen y is poorly designed regarding this and most people have to modify the flange to attach it or leave it off altogether. Did you have this prob with the Cattman y?
Yeah, that saturday sucked really. I am still sore from being in all these wierd positions underneath the car trying to get the bolts off....I felt like Gumby at times....I only have a very slight noise right now. Like you said, it will probably work itself out as the flex joint settles in. I did shake the pipe and cat around and that helped to reduce a lot of the initial noise. But it is hardly noticeable when the stereo is even slightly turned up. The Cattman pipe has a bracket for the rubber hanger that fit nicely. Overall, I love the pipe.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Dave B
General Maxima Discussion
12
May 29, 2001 11:07 AM
y2kse
5th Generation Maxima (2000-2003)
15
Feb 25, 2001 08:47 PM
Andrew91SE
3rd Generation Maxima (1989-1994)
1
Nov 26, 2000 03:05 AM
ohboiya
General Maxima Discussion
9
Oct 9, 2000 12:23 PM




All times are GMT -7. The time now is 11:44 AM.