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Old 02-13-2013, 08:39 AM   #44 (permalink)
renault_megane_dci
Master EcoModder
 
Join Date: Feb 2009
Location: France - Paris
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la_voiture_de_courses - '03 Renault Megane Estate
OldContinents
90 day: 44.34 mpg (US)

xiao lan - '01 Audi A2
90 day: 38.88 mpg (US)

Brit iron - '92 Mini Mini
90 day: 45.5 mpg (US)

Prius - '09 Toyota PRIUS Lounge
90 day: 47.37 mpg (US)

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Quote:
Originally Posted by nemesis View Post
I was working on vvt set up on my bike, but it was going to advance in the low/mid range to gain power and retard as the rpms went up, so the engine would just build power all the way till rev limiter and still have nice flat torque curve.
How far have you been ?

To my knowledge, most of the VVT set up are pressure oil activated (there is an oil cavity inside the pulley of the camshaft that is filled on demand and retard or advance it)

Advancing the cam requires deeper valve cut outs, it $$$tarts to add up pretty fast.
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