Unorthodox Racing Ultra S Crank Pulley
03-20-2006, 10:36 PM
#41
Originally Posted by parshooter
So what is your point ?
03-21-2006, 07:29 AM
#42
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Originally Posted by flydog
The point is obvious if you can read without moving your lips. A few tenths of a second is on par with what should be expected from a $200 part that only adds 7-10 hp.
All the gains are from the crank pulley.
04-24-2006, 11:35 AM
#47
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Need help ASAP
I was hoping fsttyms1 could help me but he has logged off. Can any one answer a quick question. I'm getting my timing belt done today and am changing the crank pulley. My question is, is it all right to just change just the crank pulley and not change the other two. I don't think it should matter but just wanted to confirm before we start taking apart the car. 
05-04-2006, 12:24 PM
#51
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7 to 10hp gain for an easy part (not the install) is nothing to sneeze at on a car that is pretty much optimized from the factory.
This is a good example of parasitc losses associated with rotating parts - other good ones would be going to a much lighter wheel and tire combo or a composite driveshaft (for RWD cars). Another good example - even though it is outrageously expensive is the metal/ceramic composite brake rotors that you can upgrade to in the 911 - they only cost $8,000 for the kit and replacement rotors are something like $5,000 a pair!
I'm thinking of getting the pulleys once I get the Icebox in.
This is a good example of parasitc losses associated with rotating parts - other good ones would be going to a much lighter wheel and tire combo or a composite driveshaft (for RWD cars). Another good example - even though it is outrageously expensive is the metal/ceramic composite brake rotors that you can upgrade to in the 911 - they only cost $8,000 for the kit and replacement rotors are something like $5,000 a pair!
I'm thinking of getting the pulleys once I get the Icebox in.
09-06-2006, 09:19 AM
#53
Senior Moderator
Originally Posted by climberbry
Does anyone else here have power steering pump noise after doing the pulley install?
Thx!
Thx!
09-14-2006, 08:49 PM
#54
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Crank pulley will probably be my next mod! After reading this thread I think it would be a good combination to have with a cold air intake and headers. If you only decide to change the pulley then expect minor changes but if you plan do make other mods then the overall performance is better!
09-15-2006, 08:18 AM
#58
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The noise turned out to be caused by a pinhole in one of the hoses. Replaced hose and no more noise! Seet!
Also, wanted to give feedback about adding DC headers, Ultra S pulley, and AEM v2 intake all at once over the weekend. The first few days, I wasn't really feeling the returns. This was probably b/c I wasn't really testing the limits though. I was still a little concerned about things that could go wrong. After a few days, when I realize that I hadn't broken anything by doing all these mods at the same time, I started getting a little braver with the throttle. Now I can tell she definately has much more power. My car actually gets squirrelly in 2nd gear with the throttle all the way down. That's with brand new 17" Proxies 4 too. I usually hear a chirp from 1st to 2nd if I've slammed the throttle. Also, the sound is impressive - she screams. Overall, I think the mods are worth doing if not just for the experience and knowledge it builds. However, part of me wishes I wouldv'e saved the $ for a downpayment on something that would get me more gains with mods (i.e. STI/Evo, GTO).
peace
Also, wanted to give feedback about adding DC headers, Ultra S pulley, and AEM v2 intake all at once over the weekend. The first few days, I wasn't really feeling the returns. This was probably b/c I wasn't really testing the limits though. I was still a little concerned about things that could go wrong. After a few days, when I realize that I hadn't broken anything by doing all these mods at the same time, I started getting a little braver with the throttle. Now I can tell she definately has much more power. My car actually gets squirrelly in 2nd gear with the throttle all the way down. That's with brand new 17" Proxies 4 too. I usually hear a chirp from 1st to 2nd if I've slammed the throttle. Also, the sound is impressive - she screams. Overall, I think the mods are worth doing if not just for the experience and knowledge it builds. However, part of me wishes I wouldv'e saved the $ for a downpayment on something that would get me more gains with mods (i.e. STI/Evo, GTO).
peace
09-15-2006, 05:01 PM
#61
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Originally Posted by 2Rude
12-13 lbs?!?!? Wow, big change from that to 1.5lbs...What about the generic crank pulley...are they just as effective?
09-15-2006, 06:25 PM
#63
Originally Posted by 2Rude
So what your saying phesto is they're just as good...right?
09-15-2006, 06:47 PM
#64
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Originally Posted by 2Rude
So what your saying phesto is they're just as good...right?
Or read this:http://www.unorthodoxracing.com/
09-15-2006, 06:54 PM
#65
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Originally Posted by MikePA
A UR crank pulley is not just for show and it does not need a CAI or headers to be effective.
10-09-2006, 09:33 PM
#66
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so i was planning on getting my timing belt replaced in a couple of weeks. if i were to buy the UR pulley and the two belts would i still need all the parts listed in this thread: https://acurazine.com/forums/showthread.php?t=145604
10-10-2006, 03:57 AM
#68
Originally Posted by greeeneyes1200
so i was planning on getting my timing belt replaced in a couple of weeks. if i were to buy the UR pulley and the two belts would i still need all the parts listed in this thread: https://acurazine.com/forums/showthread.php?t=145604
10-10-2006, 10:52 AM
#70
DRINKING HAS A ME PROBLEM
i didnt think that hydrolocking was even an issue with the icebox. i know with all the other CAI it "could" be but i thought that the icebox was configured againced that
10-10-2006, 09:19 PM
#73
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so if i have 2 12" apline type-s subs that run nominal at 450 watts will the crank pulley lower the quality of the sound. i know it says up to 600watts but will take away any power or is that just strictly for systems over 600watts
10-10-2006, 09:42 PM
#74
Originally Posted by Phesto
I can testify that my UR pully is definitely not just for show..........its the AEM ones that have a question mark.I think even Megan made a pulley set for our cars if I am correct,and of course the Ebay ones.But you take a risk and you get what you pay for.UR has been used by many people and I for one can say I love mine.Best mod right after headers.
10-10-2006, 10:45 PM
#75
DRINKING HAS A ME PROBLEM
Originally Posted by greeeneyes1200
so if i have 2 12" apline type-s subs that run nominal at 450 watts will the crank pulley lower the quality of the sound. i know it says up to 600watts but will take away any power or is that just strictly for systems over 600watts
10-13-2006, 09:35 PM
#76
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Originally Posted by parshooter
Calm down man. No where in your intial post did you mention ANYTHING about crank balance or bearings. My question is geared toward those that know about the mechanics of the crank and bearings. I did find more information about this on another thread.
I don't think the pulley will be an issue so far as throwing out the balance on the crank. Each individual ur pulley has been factory balanced. Most things of this nature have half holes drilled in it @ the heavy spot. I can't remember if i saw them on my ur pulley when i installed it, but i'm sure the balance holes are there. Part of my job is balancing impellers & the way we do it is to grind on the heavy spot using our balance machine. Everything that rotates mechanicaly must be balanced. You would not beleive the difference between a pump with a unbalanced impeller compared to one that is balanced. A unbalanced impeller makes the pump shake like a whores ass @ a picnic.
11-11-2006, 05:54 AM
#78
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Originally Posted by Rpappi
your fine but you will get better performance out of the car and system if you get a power Cap installed. you would not have to worry about anything if you did that.
12-05-2006, 08:20 AM
#80
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Originally Posted by V_A_Boy
If i'm buying a new crank pulley do i really need to buy a new belt?