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Thu Aug 17, 2006 8:31 am

SkrapMetal wrote: No shims = Less maintenance

I fail to see how that equation works

Thu Aug 17, 2006 9:22 am

So I guess y'all agree...the cost of the system out weighs the lack of benifits. Cool!

Thu Aug 17, 2006 12:42 pm

Ozzie wrote: The "v" creates a lot of friction as it slides along the sides of the shiv (sheave) as it rotates. Friction = resistance & heat. Less effecient.

I would think the total quantity of friction would depend on the surface area acting upon the rubber belt. The V-belt is narrower, but has three wear surfaces (of which only two are actually in contact with a pulley, if properly adjusted, right?). A stock ACVW motor only has two pulleys, not three or four onto which a full inch-wide belt is in contact with over half (give or take) its circumference. I'm not in a position to go out and measure belts and pulleys right now, but thinking this through, I strongly suspect that the stock set-up has less parasitic friction than would a 1" serpentine with three pulleys.

Add up and compare the contact area on the pulleys of each system and we'll have a winner.

Thu Aug 17, 2006 12:48 pm

70 140 wrote: SkrapMetal wrote: No shims = Less maintenance

I fail to see how that equation works

It's the New Math; you have to carry the 3 and the "T" cancels out the 4.

Thu Aug 17, 2006 1:15 pm

thom wrote: 70 140 wrote: SkrapMetal wrote: No shims = Less maintenance

I fail to see how that equation works

It's the New Math; you have to carry the 3 and the "T" cancels out the 4. ahh, the denominator.

Thu Aug 17, 2006 1:21 pm

I love watching the banter back and forth on a topic like this. And like usual it kind of sides up with the people that like a plain old generic Ghia with the original setup. But those that don’t mind changing the Ghia to a more modern vehicle with bigger “motor”, wider wheels custom interior like to “try” and improve on a easily, workable car.

Thu Aug 17, 2006 2:23 pm

4ghias wrote: I love watching the banter back and forth on a topic like this. And like usual it kind of sides up with the people that like a plain old generic Ghia with the original setup. But those that don’t mind changing the Ghia to a more modern vehicle with bigger “motor”, wider wheels custom interior like to “try” and improve on a easily, workable car.

next we should have one on radial tires :D

Thu Aug 17, 2006 5:08 pm

retrowagen wrote: Ozzie wrote: The "v" creates a lot of friction as it slides along the sides of the shiv (sheave) as it rotates. Friction = resistance & heat. Less effecient.

I would think the total quantity of friction would depend on the surface area acting upon the rubber belt. The V-belt is narrower, but has three wear surfaces (of which only two are actually in contact with a pulley, if properly adjusted, right?). A stock ACVW motor only has two pulleys, not three or four onto which a full inch-wide belt is in contact with over half (give or take) its circumference. I'm not in a position to go out and measure belts and pulleys right now, but thinking this through, I strongly suspect that the stock set-up has less parasitic friction than would a 1" serpentine with three pulleys.

Add up and compare the contact area on the pulleys of each system and we'll have a winner.

The flat belt engages like a tire to a road. The "V" belt engages by SLIDING into position. The two sides of the belt, relative to the sides of the pulley are traveling in different directions until the belt is fully seated in the groove. It does it again on the exit side of the pulley. When you adjust your valves, have you not heard the belt make rubbing noises against the pulley? The equasion is more than just a comparison of surface area. It's more like comparing a wide tire rolling down the road versus a narrower tire drifting through a curve.

Fri Aug 18, 2006 12:40 am

The true test of the friction side of thing would be to use the two diffarent systems on the same engine on a dyno and see if there was a HP change.

Mabye somthing the BDM guys could do :wink:

Fri Aug 18, 2006 7:21 am

As for adjusting the belt on a stock VW, with a good belt, and properly tensioned in the first place. you rarely have to adjust it after that. How many old ACVW's have you bought that still had the spare belt in the trunk. I know I have bought a lot of them. The OG belt rarely gave problems.
As for burning up an engine because a belt broke. That is why they call them Idiot lights.

Fri Aug 18, 2006 4:04 pm

When we first came out with these kits Jake Raby pruchased and tested them. According to the results we recieved from him there was a very slight increase on HP,,,but he is the person to ask, We are just too busy getting them out to those that are eager for the upgrades . Others have also put them on the Dyno,,,I think you could also check with Chico,
The bottom line is it is good to have choices.
For those oldies like myself, I was one who bitched when Bob Dylan took up the electric guitar,....but then I like airbags and air conditioning,
Kelly