Unorthodox Racing Pulley's...whats the point of them?

SENTRASER · Oct 9, 2001

I've seen these things on people mod lists...anyone know what the point of them is? Also...where do you find the kit that is used to change timing chain over to a timing belt? And what are the advantages to this? Please give me any advise you can...TIA!!

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Got 5-th gear pop-out problem?(FROM TalkingEAR) http://www.petitiononline.com/44ndone/
Damn it...I want an SE-R...NOW I HAVE ONE!! Bone Stock though...: (

NismoPC · Oct 9, 2001

Originally posted by SENTRASER:
I've seen these things on people mod lists...anyone know what the point of them is?

Go here:
http://www.unorthodoxracing.com/faq_pulleys.html

Also...where do you find the kit that is used to change timing chain over to a timing belt? And what are the advantages to this? [/B]

Why would you want to do that? Timimg chains are more durable and last longer.

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Brandon
'96 G20 ($tillen/K&N intake, '91 intake cam, 17 degrees, custom 2.25" Borla cat-back exhaust)

Storm88000 · Oct 9, 2001

The UR pulleys make about 6hp typically. Worth the $180.

Serban · Oct 9, 2001

Originally posted by SENTRASER:
I've seen these things on people mod lists...anyone know what the point of them is?

They are lighter, and different size, helps to rev up quicker, and gain a few extra HP.

Also...where do you find the kit that is used to change timing chain over to a timing belt?
[/B]

The timing chain is inside your engine, i dont think you want a belt in there.

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Serban Gavrilescu
91 Black Metallic SE-R
146.5hp & 131.6lb-ft torque

Serban's SE-R Page

NismoSER · Oct 9, 2001

i dunno where you can find them for 180, i assume that's for the 2 pulley set...but you can get the 2 pulley set from JWT (http://www.courtesyparts.com/ur.html) for $240, belts included.

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1991 Sentra SE-R
Cone intake, NismoBorla Exhaust, 19* timing, 2 12" Kicker Competitions, 125K miles

MaddMatt · Oct 9, 2001

Try Courtesy. I believe they're somewhere around $200-$210 and they include the belts.

The crank pully is a smaller diameter and made of aluminum instead of steel. It's lighter by several pounds. It's almost like removing mass from the flywheel, it's just on the other end of the crank. The smaller diameter means that you are now turning all the accessories less. This means they rob less hp. Dyno charts indicate somewhere around 5 hp for the 2 set, and another 2hp or so for the set of 4 pullies.

Also, this hp gain is across the whole rpm range, not just the high rpms like most intake/exhaust mods. Some people may not think it's worth only 5 hp, but I suspect it increases the area under the torque curve nearly as much as a header does. Good bang for the buck mod, IMO.

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Matt
92 SE-R from Heck

"What have you DONE to that thing..." - stranger at Rockingham dragway 5/18/01
"Where's the turbo?" - stranger at the 1st autocross of 2000 where my SE-R debuted
"That thing is a goddamn rocket ship. I'm not lifting for you on the straights anymore!" -Karl Shultz, Rockingham 4/27/01
"What in the hell have you done since I drove it last?" -David Stone, Rockingham 4/27/01

SENTRASER · Oct 9, 2001

Originally posted by MaddMatt:
Try Courtesy. I believe they're somewhere around $200-$210 and they include the belts.

The crank pully is a smaller diameter and made of aluminum instead of steel. It's lighter by several pounds. It's almost like removing mass from the flywheel, it's just on the other end of the crank. The smaller diameter means that you are now turning all the accessories less. This means they rob less hp. Dyno charts indicate somewhere around 5 hp for the 2 set, and another 2hp or so for the set of 4 pullies.

Also, this hp gain is across the whole rpm range, not just the high rpms like most intake/exhaust mods. Some people may not think it's worth only 5 hp, but I suspect it increases the area under the torque curve nearly as much as a header does. Good bang for the buck mod, IMO.

So would a set of all 4 pullys be a good deal for $250 not including shipping? Thinking about getting them...later..
let me know asap if you guys can..
~Ryan

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Got 5-th gear pop-out problem?(FROM TalkingEAR) http://www.petitiononline.com/44ndone/
Damn it...I want an SE-R...NOW I HAVE ONE!! Bone Stock though...: (

NXTremeSE-R · Oct 9, 2001

wasnt there some problem with the crank pullys with leaking or some other damaging things?

nj1266 · Oct 9, 2001

AFAIK, no SE-R has had problems with the UR pulleys. Hondas and Integras have had problems.

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Naji Dahi, aka Red Mist
Fast 1998 SE-R Last of the SE-Rs
163 hp, 124 lbft tq
Slow 1996 G20 (AGXs/G20t springs, K&N drop in filter)

brian · Oct 9, 2001

just replace your seal while you are in there 13510-53j10 iirc is the part #

SENTRASER · Oct 9, 2001

Originally posted by brian:
just replace your seal while you are in there 13510-53j10 iirc is the part #

Hell yes! I just won a set of 4 UD pullys, silver for $265, $12 shipping on eBAY!! WHO-HOO!!!(As homer simpson would say!) Thanks for all your advice guys!! It swayed me to bidding on them!!

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~~Ryan
Got 5-th gear pop-out problem?(FROM TalkingEAR) http://www.petitiononline.com/44ndone/
Damn it...I want an SE-R...NOW I HAVE ONE!! Bone Stock though...: (
Now its wrecked...

( STILL PULLS HARD TO THE REDLINE THOUGH!!

SENTRASER · Oct 9, 2001

Originally posted by nj1266:
AFAIK, no SE-R has had problems with the UR pulleys. Hondas and Integras have had problems.

Could that be because we have a perfectly balanced engine?? 2.0 I-4 is supposed to be one of the best engine setups, with a strait six not in the picture...

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~~Ryan
Got 5-th gear pop-out problem?(FROM TalkingEAR) http://www.petitiononline.com/44ndone/
Damn it...I want an SE-R...NOW I HAVE ONE!! Bone Stock though...: (
Now its wrecked...

( STILL PULLS HARD TO THE REDLINE THOUGH!!

Guest · Oct 10, 2001

Hey Storm (or anyone else) ---where can I find pulley's for that kind of $. I have seen them for over $300---also---If I buy the 3 pulley kit---where can I get the new belt sizes?

thanks for any help

brian · Oct 10, 2001

the sizes come in the box, also, they come in either 2 or 4 pulley sets.

Unorthodox Racing Pulley's...whats the point of them?

Guest

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