Weight of underdrive pulley help.
Weight of underdrive pulley help. I had an ASP pulley before and it was quite a bit lighter than stock. Well, a shop that I give it to for machining sold it, yeah I know, and gave me a pioneer underdrive for the inconvinience. I noticed that the quality is there, but it's nearly as heavy as the stocker. Should I run it or get another ASP? Worth the hassle? Thanks.
THIS is the way it WAS 36-40 months ago when I were changing several pulleys
", SLP pulley about 8.2 lb I think and 5 5/8 dia. and same metal as>> stock pulley which weight about10.6 lb and about 7 5/8 dia<<, ASP about 6.3 lb and 5 5/8 dia.
good luck , Johnny
", SLP pulley about 8.2 lb I think and 5 5/8 dia. and same metal as>> stock pulley which weight about10.6 lb and about 7 5/8 dia<<, ASP about 6.3 lb and 5 5/8 dia.
good luck , Johnny
wtf!? What made them think they had the right to sell your part? Theyre ripping you off! It is ridiculous as going to a shop for some new tires and coming back with different rims.
Make them buy you a new asp pulley and never do business with them again.
Make them buy you a new asp pulley and never do business with them again.
Yeah, it's kind of a weird situation because I'm good friends with a guy there and one of his fellow employees sold it. Dicked. I'm going to ask for an ASP again, but the shitty part is that I need to have it machined again now. That's the whole reason I dropped it off the to begin with. 
Dicked.
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I wouldnt install their pioneer pulley. The pulley they gave you sounds fishy. Does it look like a modified stock pulley? It might not even be the right pulley for your engine. If its the wrong one it will cause problems.
Dont ask, demand a new asp pulley or the money to buy one.
Dont ask, demand a new asp pulley or the money to buy one.
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Joined: Mar 2004
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From: BFE
Originally Posted by Dear John
Yeah, it's kind of a weird situation because I'm good friends with a guy there and one of his fellow employees sold it. Dicked. I'm going to ask for an ASP again, but the shitty part is that I need to have it machined again now. That's the whole reason I dropped it off the to begin with. Dicked.
Dicked.
Originally Posted by SS SLP2
THIS is the way it WAS 36-40 months ago when I were changing several pulleys
", SLP pulley about 8.2 lb I think and 5 5/8 dia. and same metal as>> stock pulley which weight about10.6 lb and about 7 5/8 dia<<, ASP about 6.3 lb and 5 5/8 dia.
", SLP pulley about 8.2 lb I think and 5 5/8 dia. and same metal as>> stock pulley which weight about10.6 lb and about 7 5/8 dia<<, ASP about 6.3 lb and 5 5/8 dia.
I'm undecided between the ASP and March crank pullies.
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Joined: Mar 2004
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From: BFE
Originally Posted by LS1LT1
How about the March pulley's weight if ya got it?
I'm undecided between the ASP and March crank pullies.
I'm undecided between the ASP and March crank pullies.
I'm going with march because it is fluid dampened and that contols the bad harmonics which are increased after internal engine mods..
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I run a March. It is heavy as poop. But I heard somebody talking about how it didn't matter because some of it was fluid, so it wasn't as bad. So anyways, when did Pioneer switch from radios to underdrive pulleys? With all the problems the big names have had I sure as heck wouldn't trust that. That is like asking for knock retard.
Thats right, since the weight of the March pulley is a result of the addition of fluid in the casing, it does not matter. The fuild does not spin, thus you cannot consider it when weighing a pulley to decide which one you are going to get. No one yet knows how much the March pulley "really" weighs, which would just be the weight of the casing. You can think of it like a cup of water. When you spin the cup, the water inside doesnt move.
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From: BFE
BTW it weighs the same as stock. 10.8 if I remember correctly.
Performance wise "All the pulley with the same underdrive ratio will give you the same gain"
ASP just looks prettier, March is the way to go to control harmonic (crank) vibrations.
Performance wise "All the pulley with the same underdrive ratio will give you the same gain"
ASP just looks prettier, March is the way to go to control harmonic (crank) vibrations.
Originally Posted by dug
I wouldnt install their pioneer pulley. The pulley they gave you sounds fishy. Does it look like a modified stock pulley? It might not even be the right pulley for your engine. If its the wrong one it will cause problems.
Dont ask, demand a new asp pulley or the money to buy one.
Dont ask, demand a new asp pulley or the money to buy one.
Originally Posted by PREDATOR-Z
The weight of the pulley is meaningless because it is a rotational mass. So pick your pulley for it's dampening characteristics.
I'm going with march because it is fluid dampened and that contols the bad harmonics which are increased after internal engine mods..
I'm going with march because it is fluid dampened and that contols the bad harmonics which are increased after internal engine mods..
That comment is about as wrong as it gets. Rotational mass is 3 times more valuable then static or suspended weight. Pulley, wheels, driveshafts, are all worth the weight reduction bro. TECH Senior Member
Joined: Mar 2004
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From: BFE
Originally Posted by Dear John
That comment is about as wrong as it gets. Rotational mass is 3 times more valuable then static or suspended weight. Pulley, wheels, driveshafts, are all worth the weight reduction bro.When a mass is in rotation, it doesn't apply the weight solely downward but is distributed across the perimeter due to centrifugal forces when in motion.
Take a light yoyo and a havier one, which one will rotate at a higher speed, with less force applied on the fulcrum? And which one will be more stable in its cycle?
A fluid pulley/balancer that dampens the vibes at high rpms is superior to elastometer dampeners and inertia dampeners.
I have used Fluid dampers in SBC's for almost 2 decades and believe me when I tell you they work.
Also the LS1 with its KR sensors is even more sensitive to that form of harmonic dampening.
A pulley with more weight to the outside of the pulley will be harder to spin up, and have more momentum than one with the weight centered in the middle. If you have a pulley that is only 1" in diameter, but weights 20 lbs, it will still spin up faster than a pulley thats 5" in diameter and weight 5 lbs, if the weight it on the outside of the pulley.
Originally Posted by PREDATOR-Z
The weight of the pulley is meaningless because it is a rotational mass.
As far as the better dampening characteristics of the March go, I have a very smooth idling (A4) car with no apparent 'crank vibration' or anything right now and I do plan on staying a 'bolt on' car so I think I'd rather go with the lighter ASP.
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From: BFE
Originally Posted by Ferocity02
A pulley with more weight to the outside of the pulley will be harder to spin up, and have more momentum than one with the weight centered in the middle. If you have a pulley that is only 1" in diameter, but weights 20 lbs, it will still spin up faster than a pulley thats 5" in diameter and weight 5 lbs, if the weight it on the outside of the pulley.
And as far as the dampning capabilities, the ASP had to be redesigned to reduce the KR it was inducing. So obviously it was a well researched piece
Anyways to each his own, March is a better pulley IMO. And BTW if you have a big cam, I would get a ARP crank bolt if you do not want the ASP one to loosen up and you'll see the beauty a flying pulley can do.