 Velocity stacks on a six, Are they needed? |
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| Kerrys914 |
 Nov 27 2004, 09:44 AM
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#1
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Dear, the parts I just sold paid for that part ;)  Group: Members Posts: 1,568 Joined: 26-December 02 From: Williamsburg, VA Member No.: 16  |
I have some Weber 40's for a six and they don't have velocity stacks (air horns or ?) are they needed? I will not be using the air box but will have seperate air filter/ water shields.
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| McMark |
Nov 28 2004, 02:00 AM
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
Velocity stacks (or air horns) will help you make more power. Where that power comes in on the RPM range depends on the height of the velocity stack. If you don't put them on it's no problem. The engine will run and all will be fine with the world. That said, you could be making more power if you put on stacks. The stacks smooth the incoming air, reducing turbulence. The longer the stack, the less turbulence. But the less turbulence you have the more likely it is that the fuel vapor will condense on the intake walls (bad for power). That's why longer stacks make lower power at lower RPMs. The smooth air is moving slowly without turbulence, giving the fuel lots of opportunity to drop out of the air.
Was that clear? |
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Posts in this topic
Kerrys914 Velocity stacks on a six Nov 27 2004, 09:44 AM
michel richard Despite the name, with rainshields, I would think ... Nov 27 2004, 10:00 AM carambola i always thought the air horns cleaned the intake ... Nov 27 2004, 10:42 AM Howard R Yes they are, and while you are about it get set o... Nov 27 2004, 10:47 AM kkelly Not sure about the technical reason for velocity s... Nov 27 2004, 11:45 AM trekkor i just like this... Nov 27 2004, 12:20 PM J P Stein No, No...like this :lol:
Thanx for helping me sli... Nov 27 2004, 09:11 PM krk JP -- that's a great pic -- I liked it the fir... Nov 27 2004, 09:36 PM campbellcj JP's pic is a true classic; I never mind looki... Nov 27 2004, 10:00 PM
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