blower wine

[hotrodharley]

will i get more blower wine from the 8mm or the 13.9mm pulleys/belts?was told the blower wine comes from the air between the pulley and belt. right or wrong?

[OneBadGMC]

will i get more blower wine from the 8mm or the 13.9mm pulleys/belts?was told the blower wine comes from the air between the pulley and belt. right or wrong?

Correct. It's the air escaping out of the teeth as they mesh together.

14mm pulleys are cheaper as they are less used now. Most people have moved over to 8mm for a greater selection of ratios, and the newest Pro-Mod and Top Fuel stuff is 11mm, which is the best blend of ratios and strength.

As for amount of whine... meh... I've had both, and they are both pretty close in volume.

How tight you run the belt has a bigger impact on whine than anything. The guys with the most whine (for street driven) usually have belts you can play like a guitar string. Doing that is really dangerous because it pre-loads the crank snout pretty heavily. The snout will give before that belt will.

If you want to reduce the amount of whine, you can drill 1/16" holes into the tooth valley on the pulley. It gives the air more places to escape and minimizes the whine sound.

[OneBadGMC]

Big time different combos... but...

8mm pulleys, 2" wide belt - http://www.youtube.com/watch?v=LW-9NV0VDMQ

14mm pulleys, 3" wide belt - http://www.youtube.com/watch?v=4Gm2d0s409U

I'd say the 8mm is more of a whistle, where the 14mm is more of a scream.

[FullTimeRacing]

dude, is that wall still there at gateway,brake a axle and head frist in the wall

[ashbros]

I am courious,

What type of blower do you have?

[OneBadGMC]

The wall is long gone. That was when Gateway ran North to South. When they changed the facilities, it now runs South to North.

As for blower...

The 8mm belt was a B&M Powercharger 250. Was my first blower back in 1992.

The 14mm belt in that video was a Mooneyham 10-71 (18 strips), which has since been replaced by an SSI 14-71 B-Rotor with 30 strips.

[hotrodharley]

I am courious,

What type of blower do you have?

A 12-71 LITTLEFIELD[OLDDER ONE]

[CamBirdRacing]

My guess is that if you had more cheese, you will get more whine.



Sorry, couldn't help it, haha.

[bjuice]

Big time different combos... but...

8mm pulleys, 2" wide belt - http://www.youtube.com/watch?v=LW-9NV0VDMQ

14mm pulleys, 3" wide belt - http://www.youtube.com/watch?v=4Gm2d0s409U

I'd say the 8mm is more of a whistle, where the 14mm is more of a scream.


watched the 14mm video,,said your foot slipped off ???....do you not run a Boxed in style type of Toe lift ? :roll:

[OneBadGMC]

Big time different combos... but...

8mm pulleys, 2" wide belt - http://www.youtube.com/watch?v=LW-9NV0VDMQ

14mm pulleys, 3" wide belt - http://www.youtube.com/watch?v=4Gm2d0s409U

I'd say the 8mm is more of a whistle, where the 14mm is more of a scream.


watched the 14mm video,,said your foot slipped off ???....do you not run a Boxed in style type of Toe lift ? :roll:

Newp. Only had that issue once in 12 years.

[bjuice]

the Slipping off is not a bad thing ..what i was really driving at is if that pedal ever stayed on the floor ( for what ever reason) its gonna be an interesting pass...?..JMO

[nofear57]

check my profile to hear some blower whine 8)

[OneBadGMC]

check my profile to hear some blower whine 8)

Sounds like either a 1/2" Sq Tooth belt, or a belt that's too tight, or both. The only time I've had any of mine whine that loud at idle I could play guitar notes on the belt.

[nofear57]

You are correct on both,but it sure sounds cool and turns many heads 8) I've found the sweet spot with the belt so it won't damage anything.

[OneBadGMC]

You are correct on both,but it sure sounds cool and turns many heads 8) I've found the sweet spot with the belt so it won't damage anything.

Just be careful. That's hard on the blower snout bearings as well as the crank snout and #2 main bearing.