Velocity stacks air funnel trumpets Yamaha R1 2007

  • 10 Units in Stock
  • Model: VS_29
  • Shipping Weight: 1lbs
300.00 €
Quantity :
Max: 5

Description:

Racing velocity stacks  developed on dynotune (Dynojet i250) and tracks,designed for use on circuits and driveways. Prohibited use on public roads

  • Incrementa potenza e coppia ad i medi ed alti giri al minuto

  • The engine reaches its maximum speed in less time

  • Increased responsiveness of the engine during the reopening of thottle

  • Reduces the loss of engine power on approach to limiting

  • Amazing intake sound
  • Increase ram air effetc for variable system removed

Contents of a package:

  • 4 racing velocity stacks racing made by CNC machines
  • 2 support brackets made of stainless steel laser cutting machines
  • Screws
  • pack of medium strength Loctite
  • assembly instructions

 

Dyno results:

Hp/Time

Hp/Rpm

  

Test info:

Yamaha R1 2008 , Leovince full racing system, Bmc carbon race filter and Ecu Yec

Blue line = Stock variable system stacks

Red line = Venturisystem stacks (static system)  with optimized map

Tested by  Phoenix Racing Italy

 

 

 

Warnings:

The kit increases the intake air into the engine so may need to adjust the AFR (air-fuel ratio)

More Air =  AFR lean

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Technical Development

What is AFR?

 

 

 

 

 

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