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Location:
Sydney, Australia
Registered:
December 2002
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Re: 4AGE 20v...'Blacktop'
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Sat, 28 December 2002 06:04
 
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The VVT on the silvertop comes on at 4400 RPM, advances the intake cam timing by 30 degrees, then shuts down at 6400 RPM. On the blacktop the VVT comes on as early as 1700 RPM depending on throttle position and engine vacuum. It varies the amount of timing advance, and shuts down at 6400 RPM.  This is why i would rather the blacktop over the silver. it hasnt got a huge difference in kw's  but it is much more advance.
so, again, if anyone knows the cost all up, purchase price and conversion all up to fit a blacktop or silvertop into an sx corolla please let me know. 
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