Unorthodox Racing Underdrive Pulley HP Gain ?
#1
Old Maxima Legend
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Join Date: Apr 2003
Location: Paraparaumu, NZ
Posts: 6,069
Unorthodox Racing Underdrive Pulley HP Gain ?
Hey, im getting an Unorthodox Racing Underdrive Pulley for my 97 5 speed Maxima SE. And had a question for those "WHO KNOW" or those who have this modification and " WHO ALSO KNOW".
1. How many HP gain can I expect ?
2. Can you feel or did you feel it after install ?
3. How long is the install and what can I expect to pay ?
Note: (I have a manual transmisson)
After this, im going for the flywheel.
1. How many HP gain can I expect ?
2. Can you feel or did you feel it after install ?
3. How long is the install and what can I expect to pay ?
Note: (I have a manual transmisson)
After this, im going for the flywheel.
#2
I have an auto with the RVM pulley, but:
1) It was dyno'd at 6hp peak gain at wheels by DaThrillr
2) Felt slightly quicker off the line and low end, nothing drastic
3) Expect to pay $80-$120 for install and belts. I did it myself in about 2 hours, make sure you have air tools.
1) It was dyno'd at 6hp peak gain at wheels by DaThrillr
2) Felt slightly quicker off the line and low end, nothing drastic
3) Expect to pay $80-$120 for install and belts. I did it myself in about 2 hours, make sure you have air tools.
#3
Re: Unorthodox Racing Underdrive Pulley HP Gain ?
Originally posted by Ceasars Chariot
Hey, im getting an Unorthodox Racing Underdrive Pulley for my 97 5 speed Maxima SE. And had a question for those "WHO KNOW" or those who have this modification and " WHO ALSO KNOW".
1. How many HP gain can I expect ?
2. Can you feel or did you feel it after install ?
3. How long is the install and what can I expect to pay ?
Note: (I have a manual transmisson)
After this, im going for the flywheel.
Hey, im getting an Unorthodox Racing Underdrive Pulley for my 97 5 speed Maxima SE. And had a question for those "WHO KNOW" or those who have this modification and " WHO ALSO KNOW".
1. How many HP gain can I expect ?
2. Can you feel or did you feel it after install ?
3. How long is the install and what can I expect to pay ?
Note: (I have a manual transmisson)
After this, im going for the flywheel.
#5
I could be wrong, but I'm pretty sure the UDP does just the opposite when it comes to the alternator and running the AC or a sound system. The pulley and belt are smaller in diameter and length, respectively, meaning if the engine is turning at 1500rpm, the belt is moving slower with the UDP than with the stock pulley.
#6
Originally posted by araffio
I have an auto with the RVM pulley, but:
1) It was dyno'd at 6hp peak gain at wheels by DaThrillr
2) Felt slightly quicker off the line and low end, nothing drastic
3) Expect to pay $80-$120 for install and belts. I did it myself in about 2 hours, make sure you have air tools.
I have an auto with the RVM pulley, but:
1) It was dyno'd at 6hp peak gain at wheels by DaThrillr
2) Felt slightly quicker off the line and low end, nothing drastic
3) Expect to pay $80-$120 for install and belts. I did it myself in about 2 hours, make sure you have air tools.
May be you should sell your wheels to me, and get some chrome wheels to match your engine. I would look forward buying them off you. You should diffinitly go chrome with the wheels. it would match perfectly.
Pm Me if you want to sell them.
#7
Originally posted by Indecisive311
Quick question. What is the point of having them colored? The pulley isn't visible is it? If so where exactly is it located?
Quick question. What is the point of having them colored? The pulley isn't visible is it? If so where exactly is it located?
#8
Originally posted by araffio
I could be wrong, but I'm pretty sure the UDP does just the opposite when it comes to the alternator and running the AC or a sound system. The pulley and belt are smaller in diameter and length, respectively, meaning if the engine is turning at 1500rpm, the belt is moving slower with the UDP than with the stock pulley.
I could be wrong, but I'm pretty sure the UDP does just the opposite when it comes to the alternator and running the AC or a sound system. The pulley and belt are smaller in diameter and length, respectively, meaning if the engine is turning at 1500rpm, the belt is moving slower with the UDP than with the stock pulley.
You could be 100% right. I could be wrong.. But I am hoping the UDP pulley I ordered, I could Use the OEM belts on it. Look at the above link RVM has a different Pulley from the one you got. Ant told me that he had to use different belt. On this link the one they have they saying you could use the OEM belts. So who knows I could be wrong. But I always thought when the pulley lighter it will make the alternator work better, and AC. well I guess i have to see on Tuesday.
#9
If the pulley is lighter and not smaller, than you can use the OEM belts. Me and Ant needed different belts because we got an underdrive pulley, which means it's smaller as well as lighter. The OEM belts are too long to use with a UDP.
My rims are not for sale and won't be anytime in the near future. Chrome on the exterior of a car is nasty!!!
Chrome on the interior and engine bay is
My rims are not for sale and won't be anytime in the near future. Chrome on the exterior of a car is nasty!!!
Chrome on the interior and engine bay is
#10
Originally posted by araffio
If the pulley is lighter and not smaller, than you can use the OEM belts. Me and Ant needed different belts because we got an underdrive pulley, which means it's smaller as well as lighter. The OEM belts are too long to use with a UDP.
My rims are not for sale and won't be anytime in the near future. Chrome on the exterior of a car is nasty!!!
Chrome on the interior and engine bay is
If the pulley is lighter and not smaller, than you can use the OEM belts. Me and Ant needed different belts because we got an underdrive pulley, which means it's smaller as well as lighter. The OEM belts are too long to use with a UDP.
My rims are not for sale and won't be anytime in the near future. Chrome on the exterior of a car is nasty!!!
Chrome on the interior and engine bay is
Well its all good I understand Chrome outside of the car is nasty. but anyhow nice rims... And show some pictures as soon as your engine bay is done.
as far as saying Underdive pulley this is the stuff i got, and i think you are right about that. http://www.stillen.com/sportscars_de...id=3343&page=1
Oh well I'll see what happens on friday. if I don't like it I would take it out.
#11
If that's the pulley you bought, then it's an underdrive pulley and you'll need smaller belts.
They are explaining here-
"Underdriving is not pushed for two main reasons. The main reason is to keep charging systems, air conditioning, power steering, and water pumps moving fast enough for every day driving. Second, not much horsepower is gained from extreme underdriving.
- that by making the pulley too small it is no longer beneficial. You won't have any problems with the underdrive pulley, install it and enjoy it for the small amount of power it provides.
They are explaining here-
"Underdriving is not pushed for two main reasons. The main reason is to keep charging systems, air conditioning, power steering, and water pumps moving fast enough for every day driving. Second, not much horsepower is gained from extreme underdriving.
- that by making the pulley too small it is no longer beneficial. You won't have any problems with the underdrive pulley, install it and enjoy it for the small amount of power it provides.
#12
Originally posted by araffio
If that's the pulley you bought, then it's an underdrive pulley and you'll need smaller belts.
They are explaining here-
"Underdriving is not pushed for two main reasons. The main reason is to keep charging systems, air conditioning, power steering, and water pumps moving fast enough for every day driving. Second, not much horsepower is gained from extreme underdriving.
- that by making the pulley too small it is no longer beneficial. You won't have any problems with the underdrive pulley, install it and enjoy it for the small amount of power it provides.
If that's the pulley you bought, then it's an underdrive pulley and you'll need smaller belts.
They are explaining here-
"Underdriving is not pushed for two main reasons. The main reason is to keep charging systems, air conditioning, power steering, and water pumps moving fast enough for every day driving. Second, not much horsepower is gained from extreme underdriving.
- that by making the pulley too small it is no longer beneficial. You won't have any problems with the underdrive pulley, install it and enjoy it for the small amount of power it provides.
You have this on your car and you are happy with it? you don't see any problem with over heating or other stuff? i know you saying its good but can you tell me if everthing runs the same way as the Oem Pulley? thanks.
#13
Old Maxima Legend
Thread Starter
iTrader: (16)
Join Date: Apr 2003
Location: Paraparaumu, NZ
Posts: 6,069
Anyone else with the Underdrive pulley that can share gains, and experiences after the install ? Im planning on going with the Unorthodox racing Underdrive pulley.
1. HP GAIN ?
2. Did you feel a difference ?
3. Do you recommend ?
Im guessing when your going my route you notice it difference in the drivers seat after a few mods that increase horsepower. Example I have the underdrive pulley ordered and my next mod is a flywheel.
1. HP GAIN ?
2. Did you feel a difference ?
3. Do you recommend ?
Im guessing when your going my route you notice it difference in the drivers seat after a few mods that increase horsepower. Example I have the underdrive pulley ordered and my next mod is a flywheel.
#14
Originally posted by Ceasars Chariot
Anyone else with the Underdrive pulley that can share gains, and experiences after the install ? Im planning on going with the Unorthodox racing Underdrive pulley.
1. HP GAIN ?
2. Did you feel a difference ?
3. Do you recommend ?
Im guessing when your going my route you notice it difference in the drivers seat after a few mods that increase horsepower. Example I have the underdrive pulley ordered and my next mod is a flywheel.
Anyone else with the Underdrive pulley that can share gains, and experiences after the install ? Im planning on going with the Unorthodox racing Underdrive pulley.
1. HP GAIN ?
2. Did you feel a difference ?
3. Do you recommend ?
Im guessing when your going my route you notice it difference in the drivers seat after a few mods that increase horsepower. Example I have the underdrive pulley ordered and my next mod is a flywheel.
#15
Supporting Maxima.org Member
iTrader: (14)
Join Date: Dec 2000
Location: Ontario, Canada
Posts: 2,404
Originally posted by CystumMax
You could be 100% right. I could be wrong.. But I am hoping the UDP pulley I ordered, I could Use the OEM belts on it. Look at the above link RVM has a different Pulley from the one you got. Ant told me that he had to use different belt. On this link the one they have they saying you could use the OEM belts. So who knows I could be wrong. But I always thought when the pulley lighter it will make the alternator work better, and AC. well I guess i have to see on Tuesday.
You could be 100% right. I could be wrong.. But I am hoping the UDP pulley I ordered, I could Use the OEM belts on it. Look at the above link RVM has a different Pulley from the one you got. Ant told me that he had to use different belt. On this link the one they have they saying you could use the OEM belts. So who knows I could be wrong. But I always thought when the pulley lighter it will make the alternator work better, and AC. well I guess i have to see on Tuesday.
As for size, the underdrive pulley is lighter as well as smaller in diameter, which logically would mean that the belts would have to be shorter.
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