Stupid Q!
07-09-2007, 03:24 PM
#1
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Stupid Q!
Hey once again does anyone know when the Vtec engages on a JDM D15B?? Some dude just stated on a other post about d16 engaging at 4500rpm
07-09-2007, 03:33 PM
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Re: Stupid Q! (mortificationrock)
EDIT: The JDM D15B has 3stage VTEC, this means that it has VTEC-E AND VTEC. It idles and beings to run on only 8 valves. /EDIT
VTEC-E shifts to all 16 valves at around 3k RPM, VTEC engages at about 6k RPM. A normal D16 w/ VTEC engages at 4800 RPM, maybe a little higher based on your MAP sensor and TPS readings, but as far as the little research I did on the 3 Stage VTEC goes, it doesn't engage the "main VTEC" until 6k.
Hope that helped some.
EDIT:
In case you're wondering about VTEC-E it's "economical" VTEC and it's used in the Z1 ('92-'95 VX) and the Y5 ('96-'00 HX)
Modified by Syndacate at 7:47 PM 7/9/2007
VTEC-E shifts to all 16 valves at around 3k RPM, VTEC engages at about 6k RPM. A normal D16 w/ VTEC engages at 4800 RPM, maybe a little higher based on your MAP sensor and TPS readings, but as far as the little research I did on the 3 Stage VTEC goes, it doesn't engage the "main VTEC" until 6k.
Hope that helped some.
EDIT:
In case you're wondering about VTEC-E it's "economical" VTEC and it's used in the Z1 ('92-'95 VX) and the Y5 ('96-'00 HX)
Modified by Syndacate at 7:47 PM 7/9/2007
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