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

udp facts, and other mods impressions.

Thread Tools
 
Search this Thread
 
Old Nov 11, 2005 | 04:01 PM
  #1  
ColdSHO's Avatar
Thread Starter
Senior Member
iTrader: (25)
 
Joined: Nov 2002
Posts: 1,551
udp facts, and other mods impressions.

i just finally got my udp put on, i know theres lots of opinions on whether its worthwhile, well heres my impressions.

measured with an autometer volt gauge.

while driving b4 14v after 14v
idle no sterio b4 14v after 13.75-13.99
idle with sterio b4 13.75-14v after 12.5-13v

so im obviously loosing a little power to my accs, but everything seems to be fine, im running about 600 watts rms.

as fas as power goes, i did notice a difference, it revs faster, but other than that power seems to have grown a tiny tiny bit, but i did ntice it.


act street/strip clutch. very easy to modulate and launch even with a fidanza flywheel. my old exedy had a defective pressure plate so im not too used to having a working clutch, this is very easy to use, awesome product

stainless clutch line. i cant tell the difference cause i did the clutch at the same time.
Old Nov 11, 2005 | 04:36 PM
  #2  
vsamoylov
Guest
 
Posts: n/a
so you are saying its worht it then huh.
Old Nov 11, 2005 | 07:29 PM
  #3  
ColdSHO's Avatar
Thread Starter
Senior Member
iTrader: (25)
 
Joined: Nov 2002
Posts: 1,551
its hard to say. my pulley was only like 50 bucks and i got it installed for almost nothing so for me yes.

once i get the two piece 6th gen rotros that wieght 6.5lbs a piece as opposed to my 22 a piece all that reduction in rotational mass im sure itll make a bigger difference

anyone know how it would work if i got the v2 supercharger, could i still use my puley or would i have to go back to stock?
Old Nov 11, 2005 | 07:57 PM
  #4  
mtrai760's Avatar
'Trynna' is not a word
iTrader: (19)
 
Joined: Mar 2001
Posts: 7,079
From: Seattle Area, WA
Originally Posted by ColdSHO
its hard to say. my pulley was only like 50 bucks and i got it installed for almost nothing so for me yes.

once i get the two piece 6th gen rotros that wieght 6.5lbs a piece as opposed to my 22 a piece all that reduction in rotational mass im sure itll make a bigger difference

anyone know how it would work if i got the v2 supercharger, could i still use my puley or would i have to go back to stock?
You would have to go back to stock or use the Unorthadox SC pulley (stock sized, lighter weight, only underdrives the power steering)
Old Nov 11, 2005 | 08:09 PM
  #5  
AllGo's Avatar
Senior Member
iTrader: (1)
 
Joined: Oct 2001
Posts: 484
Where are you getting these 2 piece 6th gen rotors? I have been holding off on that mod for that very reason, I didn't want the extra rotational mass. I had my stock 5.5 gen ~11.8" front rotors deep cryo'd by hekimian racing and they work awesome, but these sound great and I could get them deep cryo'd too and they would outlast my car.
Just let me know your source so I could pick up a set.
Thanks.

Originally Posted by ColdSHO
its hard to say. my pulley was only like 50 bucks and i got it installed for almost nothing so for me yes.

once i get the two piece 6th gen rotros that wieght 6.5lbs a piece as opposed to my 22 a piece all that reduction in rotational mass im sure itll make a bigger difference

anyone know how it would work if i got the v2 supercharger, could i still use my puley or would i have to go back to stock?
Old Nov 11, 2005 | 09:08 PM
  #6  
Puppetmaster's Avatar
Supporting Maxima.org Member
iTrader: (48)
 
Joined: Apr 2004
Posts: 16,551
From: Fairfax, VA
Originally Posted by AllGo
Where are you getting these 2 piece 6th gen rotors? I have been holding off on that mod for that very reason, I didn't want the extra rotational mass. I had my stock 5.5 gen ~11.8" front rotors deep cryo'd by hekimian racing and they work awesome, but these sound great and I could get them deep cryo'd too and they would outlast my car.
Just let me know your source so I could pick up a set.
Thanks.
Some info on those 2 piece rotors here:

http://forums.maxima.org/showthread.php?t=437932
Old Nov 12, 2005 | 12:37 PM
  #7  
BewstAdd1ct's Avatar
Supporting Maxima.org Member
 
Joined: Dec 2004
Posts: 1,587
From: Lakeland, FL
what were the current measurements at the field terminal?
Old Nov 12, 2005 | 05:11 PM
  #8  
ColdSHO's Avatar
Thread Starter
Senior Member
iTrader: (25)
 
Joined: Nov 2002
Posts: 1,551
im not sure what ur asking. im deff putting out less voltage, but it doesnt seem to be affecting anything.

update!
i think my car is adapting to the pulley, ive gotten many starts on it and it seems to have gotten more powerfull, this is how it seems to be acting.

1000rpm b4 nothing after nothing
2000 b4 nothing after slight power
2500 b4 starting to get power after decent power
3000 b4 decent power after lots of pull
4000 b4 lots of power after even more than lots
5000 vais not working b4 lots of power but starting to weakin, now lots of friggin power
6000+vais not working b4 flat power after starting to weakin
limit b4 never hit, after hit twice so far, but im sure im just not used to the new clutch.
Old Nov 12, 2005 | 10:38 PM
  #9  
bebandit's Avatar
Donating Maxima.org Member
 
Joined: Jul 2005
Posts: 42
ECU adapting.

[QUOTE=ColdSHO]update!
i think my car is adapting to the pulley, ive gotten many starts on it and it seems to have gotten more powerfull, this is how it seems to be acting.
QUOTE]

I've heard the ECU has to adapt to the UDP and sometimes it takes a couple of hundred miles to adapt to the new lighter weight. I don't know how true this is, but this is what I have heard.

When I was buying my UDP when doing some research I came across some posts where bros found that the UDP worked better as the ECU adapted.
Old Nov 13, 2005 | 05:37 PM
  #10  
BewstAdd1ct's Avatar
Supporting Maxima.org Member
 
Joined: Dec 2004
Posts: 1,587
From: Lakeland, FL
Originally Posted by ColdSHO
im not sure what ur asking. im deff putting out less voltage, but it doesnt seem to be affecting anything.

im asking what your amperage measurement before and after was at the S terminal.

OBVIOUSLY you dont drop much voltage, thats because you have an eletronic regulator that controls field coil current, and when it overloads you burn up the alternator. so im just curious about the current measurements.
Old Nov 14, 2005 | 10:42 AM
  #11  
irish44j's Avatar
retired moderator
iTrader: (38)
 
Joined: Oct 2003
Posts: 27,285
From: Burke, VA
Originally Posted by ColdSHO
its hard to say. my pulley was only like 50 bucks and i got it installed for almost nothing so for me yes.

once i get the two piece 6th gen rotros that wieght 6.5lbs a piece as opposed to my 22 a piece all that reduction in rotational mass im sure itll make a bigger difference

anyone know how it would work if i got the v2 supercharger, could i still use my puley or would i have to go back to stock?
just a note...the 2-piece rotors are 16.5 lbs each, not 6.5 lbs each...
Old Nov 14, 2005 | 11:24 AM
  #12  
ColdSHO's Avatar
Thread Starter
Senior Member
iTrader: (25)
 
Joined: Nov 2002
Posts: 1,551
ah, even still 16.5 is alot light than the anchors i have now.

measurement, im not sure, i just using my voltmeter.
Old Nov 14, 2005 | 11:54 AM
  #13  
kcowden's Avatar
Supporting Maxima.org Member
iTrader: (2)
 
Joined: May 2003
Posts: 968
Originally Posted by ColdSHO
im not sure what ur asking. im deff putting out less voltage, but it doesnt seem to be affecting anything.

update!
i think my car is adapting to the pulley, ive gotten many starts on it and it seems to have gotten more powerfull, this is how it seems to be acting.

1000rpm b4 nothing after nothing
2000 b4 nothing after slight power
2500 b4 starting to get power after decent power
3000 b4 decent power after lots of pull
4000 b4 lots of power after even more than lots
5000 vais not working b4 lots of power but starting to weakin, now lots of friggin power
6000+vais not working b4 flat power after starting to weakin
limit b4 never hit, after hit twice so far, but im sure im just not used to the new clutch.
I've noticed that my car is more responsive over all with a noticeable increae in power throughout the RPM range. Right after I was happy not have a oil leak and squealing drive belts since I did the install myself. I'm happy with mine and what a difference between the stock pully. I think I'll tie a rope to it and use it as a boat anchor...
Old Nov 14, 2005 | 03:06 PM
  #14  
BewstAdd1ct's Avatar
Supporting Maxima.org Member
 
Joined: Dec 2004
Posts: 1,587
From: Lakeland, FL
Originally Posted by ColdSHO
ah, even still 16.5 is alot light than the anchors i have now.

measurement, im not sure, i just using my voltmeter.

so set your voltmeter to amps and take a reading.
Old Nov 14, 2005 | 03:34 PM
  #15  
ColdSHO's Avatar
Thread Starter
Senior Member
iTrader: (25)
 
Joined: Nov 2002
Posts: 1,551
its in my triple pod, its not easy to tinker with sadly, ill see if i can borrow a ampmeter , where would u like me to test from?
Old Nov 14, 2005 | 03:41 PM
  #16  
BewstAdd1ct's Avatar
Supporting Maxima.org Member
 
Joined: Dec 2004
Posts: 1,587
From: Lakeland, FL
ah, i forgot you were using your autometer. my bad.

if you happen to come across an ammeter, take a reading at the 's' terminal, under moderate load.
Old Nov 14, 2005 | 05:19 PM
  #17  
ColdSHO's Avatar
Thread Starter
Senior Member
iTrader: (25)
 
Joined: Nov 2002
Posts: 1,551
ill see what i can do, what numbers shoudl i be expecting, or just whats stock?
Old Nov 17, 2005 | 04:08 PM
  #18  
BewstAdd1ct's Avatar
Supporting Maxima.org Member
 
Joined: Dec 2004
Posts: 1,587
From: Lakeland, FL
i was hoping you took a before and after measurement.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
doctorpullit
8th Generation Maxima (2016-)
60
Dec 12, 2015 09:39 AM
REDinLV
New Member Introductions
1
Sep 28, 2015 12:31 AM
hez8813
5th Generation Maxima (2000-2003)
0
Sep 27, 2015 08:37 AM
zzznightmarezz
Maximas for Sale / Wanted
0
Sep 21, 2015 06:32 PM




All times are GMT -7. The time now is 02:17 AM.