[s-cars] VMAP question

[Joseph Pizzimenti]

Feico,

http://shop.store.yahoo.com/wotmstore/hksevcivelva.html

"Intelligent Stepping Motor - A CPU is imbedded into
the stepping motor. This creates more direct and
accurate control as the CPU virtually eliminates lag
time between the stepping motor and control module.
Thereby increasing linear boost control and stability"

Feels linear to me.

P

--- FvAMI at aol.com wrote:
> 1) The VMAP-D-3 is less expensive than the Bosch 211
> even at the suggested 
> retail price. So all the added benefits are free.
> 2) The GM sensor is external ... by the time it is
> all setup the integration 
> cost will probably be the same as a VMAP. Without
> any added benefits.
> 
> Since the ultimate quest appears to achieve maximum
> horsepower - why detune 
> your chips for the 90% time you run on 91 Octane. 
> 
> External boost controllers don't modulate the boost
> based on throttle 
> position or do the higher end units have that now?
> Some can be set for gear and rpm 
> ...or do they also have programming for throttle
> position ... the snappy 
> response most likely comes from the fact that they
> are constantly trying to achieve 
> their set target boost which is independent of
> throttle position ... correct 
> me if I am wrong I haven't looked at them for a
> couple of years.
> 
> The Motronics (first order) standard boost profile
> setup is related to 
> throttle position and rpm. So at 33% throttle it's
> target boost may be only 0.5 bar 
> boost and 1.3 bar boost at 100% (arbitrary example)
> ... your external boost 
> controller may be setup to achieve 1.3 bar boost and
> it will attempt to reach 
> that value weather it is 33% throttle or 100%.
> 
> Best regards,
> Feico van der Laan
> 
> 


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