How to install your underdrive crankshaft pulley

[xintersecty]

I bought the belt over the summer to replace the existing belt (BTW it was a Car Quest OEM belt and still solid at 70K miles). I have the Special Value Purchase model Aveo with a dealer installed AC. When I tried to install the new belt it would not go on. I had two choices, the belt was too small or the parts guy gave me the wrong length. I never took belt back and used it for this setup. The dealer installed AC has the compressor slightly out from the factory installed AC hence the bigger belt.

@Rabbit (thanks for the advice) do you know if tension should be halfway point ideally? I don't have experience in this area. All my experience is setting up belts on VW Beetles using a V-Grove and washers to change the pulley ride height.

[Daox]

Well, if its works and doesn't squeal thats good. In summer mine may not squeal, but as you can see from the pics, mine is in rough shape. The new 740 belt I got was a bit looser than my OEM (which is supposed to be 740 as well) so I decided not to use it.

[Binobanana]

What is that nice looking pully for? Purpose?

[AveoJoe]

SORRY BUT I THINK ITS A WASTE? The smaller lighter pulley is the same as removing 100lbs from the car where in turn can give more horse power 2-5 more H.P. Anyone feel a difference yet?

[Daox]

What is that nice looking pully for? Purpose?

Check out this link: http://www.aveoforum.com/forum/f104/...-2008-a-11233/

The pulley is lighter than the OEM pulley and also smaller in diameter. This spins the accessories slower and frees up some power.

SORRY BUT I THINK ITS A WASTE? The smaller lighter pulley is the same as removing 100lbs from the car where in turn can give more horse power 2-5 more H.P. Anyone feel a difference yet?

You can feel a difference. Its not huge but its definitely there. I'd say its comparable to installing a cold air intake on the car.

[xintersecty]

It's a little car with a little engine. Remember little things do add up. Personally I think it's going to give me a reliable extra 1 MPG. Given 10 gallon tank that can increases my range from 320 miles to 330 miles.

[petrified.rabbit]

SORRY BUT I THINK ITS A WASTE? The smaller lighter pulley is the same as removing 100lbs from the car where in turn can give more horse power 2-5 more H.P. Anyone feel a difference yet?

Removing weight from the car does not give you more hp, it give a better hp to weight.

Only thing that add hp are engine mods..

But why not do both? $150 for 3-4(guess) hp from the pulley and 100lbs of weight savings = even faster.

A cai, this pulley, and a non oem muffler will really improve acceleration..

[reddemonx92]

I just put my pulley on and was wondering if anyone else got a little rattling noise when they first put the pulley on? It doesnt make the noise after i start driving because i took the car out to warm it up but it made it when i first turned the car on. It sounds like 2 metals clinging together but it comes and goes. Was just wondering. And i do have the 730k6 belt on.

[exodus0784]

SORRY BUT I THINK ITS A WASTE? The smaller lighter pulley is the same as removing 100lbs from the car where in turn can give more horse power 2-5 more H.P. Anyone feel a difference yet?

Disclaimer: I don't have one and don't plan on buying on unless the cost comes down.

That being said, if the pulley is like removing 100 lbs, that's removing around 5% of the total curb weight. I don't think that's anything to scoff at.

22lbs per hp stock
21lbs per hp with the pulley

Approximately a 5% improvement again.

[thehunterooo]

Disclaimer: I don't have one and don't plan on buying on unless the cost comes down.

That being said, if the pulley is like removing 100 lbs, that's removing around 5% of the total curb weight. I don't think that's anything to scoff at.

22lbs per hp stock
21lbs per hp with the pulley

Approximately a 5% improvement again.

not bad for $150

you guys have to join in on the fun!

when i put mine on, ill see if their is any differences 1/4 mile wise and other times, 0-60 would be a good measurement as well