Description:
Racing velocity stacks developed on dynotune (Dynojet i250) and tracks,designed for use on circuits and driveways. Prohibited use on public roads
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Incrementa potenza e coppia ad i medi ed alti giri al minuto
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The engine reaches its maximum speed in less time
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Increased responsiveness of the engine during the reopening of thottle
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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
