Pulley ?'s

Website · Post by **daniel240** » Wed Jan 22, 2003 10:39 am

im going to install either the asp or the U/R crank pulley on my s14. does anyone know if there is a difference in hp. also ive heard many things about the installation. i dont have to take the fan shroud and fan off do i? i know that i need new belt.

Post by **HighAspirations** » Wed Jan 22, 2003 10:39 am

I've heard that the installation of unorthodox racing pulleys can result in engine damage due to the lack of harmonic balancer, whether this is true for all aftermarket pulley's or just U/R's im not sure.

~Rob G

Post by **ESPER** » Wed Jan 22, 2003 10:39 am

I dont know about damage, but i would like to know cuz i want to do the install as well, in my import tuner mag they did the UR install in a 95 s14 and it added A WHOPPING 12 HP according to the dyno and better yet it peaked at 6300 RPMs!! which creates a MUCH better curve for the ka24de!! so yeah i want to do the mod but i am a bit curious about the so called damage!! any proof of it??

Post by **Aries** » Wed Jan 22, 2003 10:39 am

it can result in damage if it is not installed propperly.Any pulley can.Make sure you use a torque wrenchy and get everything to spec durring your install.

The 2 pulleys in quwestion are almost identical.

Post by **TrunkMonkey** » Wed Jan 22, 2003 10:39 am

HighAspirations wrote:I've heard that the installation of unorthodox racing pulleys can result in engine damage due to the lack of harmonic balancer

the KA does NOT have a harmonic balancer.

it has a harmonic dampner to counter the initial shock of the a/c clutch kicking in.

-demetrius

Post by **R240NA** » Wed Jan 22, 2003 10:39 am

demcj wrote:the KA does NOT have a harmonic balancer.

it has a harmonic dampner to counter the initial shock of the a/c clutch kicking in.

-demetrius

Damn, you beat me to it.

Post by **HighAspirations** » Wed Jan 22, 2003 10:39 am

U/R pulley installed on a hooked up ford probe for testing for some magazine, the probe had like 400hp or something but the pulley caused the destruction of the engine. The vibrations in the pulley on the oil pump caused the pump to fail and subsequently the engine failed

Post by **TrunkMonkey** » Wed Jan 22, 2003 10:39 am

what does this have to do with the KA?

-demetrius

Post by **HighAspirations** » Wed Jan 22, 2003 10:39 am

Nothing to do with KA but it has something to do with U/R pulley's

Post by **TrunkMonkey** » Wed Jan 22, 2003 10:39 am

HighAspirations wrote:I've heard that the installation of unorthodox racing pulleys can result in engine damage due to the lack of harmonic balancer

isn't this what you said?

since none of the aftermarket pulleys (or the oem pulley) for the KA have a harmonic balancer, why would the UR pulley cause possible damage?

i'll double check, but i believe the ford probe's oem pulley has a harmonic balancer. if so, the elimination of the balancer, and not the fact that the pulley is from UR is why the engine died.

-demetrius

Post by **Almost_S15** » Wed Jan 22, 2003 10:39 am

Alright guys, i've had the full U.R pulleys set for 3 months now and i installed them with my electrical fans the difference is night and day. I recommend this for turbo and non-turbo applications. The install is not for beginners, the electrical fan is easy but the pulleys are a bit tricky. i broke my water pump in the process but an autozone water pump is $34. Everything took me and my friend 3 and 1/2 hours (trip to autozone included). it will take a little longer if you have not done this before. but i garantee you if you install this right you will be more than happy

Website · Post by **daniel240** » Wed Jan 22, 2003 10:39 am

i want to know just about the crank pulley and how hard it is to install?

Post by **1LoSX** » Wed Jan 22, 2003 10:39 am

in the import tuner magazine that article is with the hole set - i believe it was 4 pulleys not sure - and im sure ur just doing the crank - but i would do the ASP its alot cheaper and will help but dont expect a HUGE difference when installed - Its not extremely difficult to install just make sure someone is there who knows what there doin thats all - hope that helped

Post by **bruinbear714** » Wed Jan 22, 2003 10:39 am

daniel240 wrote:i want to know just about the crank pulley and how hard it is to install?

The hardest part of the install is removing the crank pulley bolt and the crank pulley itself. Of course, if you have a the proper tool such as a breaker bar and a pulley puller, you can remove both the bolt AND the pulley under 10 minutes. Puller costs about $5 at your local pepboys/autostore.

Also don't forget to replace front oil seal when doing this. Costs less than $5 for that and you'll save a lot of grief and time later.

Post by **solid** » Wed Jan 22, 2003 10:39 am

I got the UR SS racing pulley kit on my car right when i got my car a while back. I've had it on for about 5 months now no problems at all. Its worth the money you will notice your engine revs up faster and smoother, and when you hit the higher rpm the you can hella hear the engine pull.

Post by **240canuck** » Wed Jan 22, 2003 10:39 am

if you have a system aswell will these underdrive pulley's hurt your alternator or battery??? or should you automatically upgrade both.

Post by **bruinbear714** » Wed Jan 22, 2003 10:39 am

240canuck wrote:if you have a system aswell will these underdrive pulley's hurt your alternator or battery??? or should you automatically upgrade both.

It's not going to hurt your alternator as long as you don't turn it up to insane levels. If you do turn it up to insane levels, you will probably end up blowing your alternator with the stock crank anyways. I believe the ASP pulley only reduces the output of the alternator by 1% (you get 99% output vs 100% on the stock pulley) at full drive.

Post by **MarkEmark** » Wed Jan 22, 2003 10:39 am

Alright, I'm seriously considering the full pulley-set upgrade from Unorthodox racing....Any power differences between a full ASP pulley upgrade and a full unorthodox racing upgrade? What about construction differences? I've heard good/bad about U/R, but only good about ASP...and from what I hear the bad about the U/R is only from people who installed the pulley's incorrectly. I was reading http://www.importtuneronline.com, and at this link, they said the following for HP / torque increases over the stock KA24DE engine, with a full dyno chart to back up their findings. Their findings seem REALLY generous, almost like they're getting paid to post inflated HP numbers---but you can't very well alter a dyno sheet, can you? Heres what they said at the following link:

http://www.importtuner.com/tech/0210it_powerpages/

"From 3000 to 4000 we picked up about 5 horses. From 4000 rpm and up the increase was steadily better with a whopping 12-hp increase at around 6300 rpm. Our peak numbers increased from 129.7 hp to 138.1 hp. Torque peak was improved to the tune of 6 lb-ft at 4200 rpm with a final number of 150.9 lb-ft."

Now I know 12 hp increase at 6300 RPM is highly unlikely, but is 5-7WHP to be realized with such an upgrade? If so, I'm sold....I know they are fairly expensive (around $350...) anyone know hwere to get them for the best price? I'm talking about the Ultra SS pulley set, not just the crank pulley..

Post by **apzak** » Wed Jan 22, 2003 10:39 am

Intresting I just read that article after I found it on google. Right now I'm going with ASP because I heard U/R don't have harmonic balancers or something resulting in engine damage, but I have to look into ASP and see if it has the same problem. I'm also intrested in what people have to say. 2 sites selling ASP told me 8hp gains, but they are selling the pullys so who knows how accurate that is. With ASP, do I have to get new belts like I would with U/R or are ASP the same size as OEM?

EDIT: Oh yea main reason I'm going with ASP is because of price. I could put the money I save into an OBX shifter, or B&M if I'm not feeling cheap.

Post by **MarkEmark** » Wed Jan 22, 2003 10:39 am

You're definitely gonna want to stay away from any short shifte rmade by OBX..they're cheap and not worth it, you get what you pay for. B&M all the way. I too heard about this "harmonic balancing problem" with the U/R pulley's, but I think its just a rumor, and haven't heard first hand from ANYONE on this forum that it causes any type of engine damage...i know a couple of members have said they've been running U/R for 4 years with no problems, they just have to be installed correctly. But yes, the ASP ones are a little heavier to "dampen" this harmonic effect. And they're $99 at http://www.rpmoutlet.com

Post by **R240NA** » Wed Jan 22, 2003 10:39 am

MarkEmark wrote: I too heard about this "harmonic balancing problem" with the U/R pulley's, but I think its just a rumor, and haven't heard first hand from ANYONE on this forum that it causes any type of engine damage...i know a couple of members have said they've been running U/R for 4 years with no problems, they just have to be installed correctly. But yes, the ASP ones are a little heavier to "dampen" this harmonic effect. And they're $99 at http://www.rpmoutlet.com

Once again, for everyone reading, there is NO harmonic balancer on the KA crank pulley. NONE. ZERO. Either pulley will be fine and will not cause any problems, unless you damage the front oil seal.

Post by **Drift Machine** » Wed Jan 22, 2003 10:39 am

And you should just replace the front oil seal while it's accesible.

Pulley ?'s

Pulley ?'s

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