Silvertop velocity stacks

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Silvertop velocity stacks - trumpets?

08-28-2009, 08:30 AM

Post: #12

jondee86 Offline

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Chrisso Wrote:There are inherent issues with running unequal lenght trumpets as this may cause unequal air/fuel ratios in different cylinders. Slightly shaved might not make much difference, but if you had a 45mm on the last cylinder, and 60mm on the other 3 this could cause major issues!

Maybe... maybe not Smile

Some motorcycles run two longer and two shorter
trumpets. The theory is that by having the ram effect happen at different
rpm's, the torque peak becomes wider and lower. Makes for a broader
power band.

Cheers... jondee86

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Messages In This Thread

Silvertop velocity stacks - trumpets? - byd1380 - 08-13-2009, 11:08 AM

[] - -Mister2- - 08-13-2009, 12:55 PM

Silvertop trumpets - byd1380 - 08-14-2009, 02:02 PM

[] - Nomuken - 08-14-2009, 09:15 PM

[] - raki - 08-15-2009, 06:21 AM

[] - Chrisso - 08-18-2009, 04:36 AM

Silvertop velocity stacks - trumpets? - byd1380 - 08-20-2009, 11:35 AM

[] - Nomuken - 08-20-2009, 02:58 PM

[] - Chrisso - 08-24-2009, 08:18 AM

[] - cue - 08-24-2009, 02:36 PM

[] - Chrisso - 08-28-2009, 04:43 AM

[] - jondee86 - 08-28-2009 08:30 AM

[] - Jan Pedersen - 08-28-2009, 12:19 PM

[] - cue - 08-28-2009, 12:52 PM

[] - jondee86 - 08-28-2009, 10:51 PM

[] - Nomuken - 08-31-2009, 10:43 AM

Trumpets - Toyyoseven - byd1380 - 09-16-2009, 12:35 PM

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