At what revs does VTEC kick?
VTEC will engage at 2300rpm. If, once it engages, you floor it to 100% throttle, it still stay in VTEC. The problem with this is however, VTEC is hurting performace at this low of an rpm at 100% throttle.
When did the Honda VTEC engine come out?
1989 was a special year for the Fast Car world. That’s when Honda re-wrote the rulebooks with the release of the B16A VTEC engine, pushing out around 160bhp from a high revving 1.6ltr non-turbo engine back when most other N/A 1.6s were struggling to top 110bhp.
Is the Honda VTEC a supercharged car?
Beyond that level supercharging a B-Series is rare as most people go turbo for big power, but there’s really no reason a supercharged B-Series can’t go 600bhp. It just needs someone to do it.
Which is the best tune for a Honda VTEC?
From then on the term VTEC and big revs have become the norm for sporty Hondas, and while tuning them took a while to seriously take off in the UK, these days the Honda VTEC lumps are some of the best 4cyl engines to upgrade. And we’re here to show you how…
How does VTEC affect the peak power of a car?
Well some people think VTEC is what creates power, but that’s not strictly true, the same wild cam profile without VTEC would create the same peak power number. What VTEC actually does is give you a mild cam profile that drives nice at lower RPM, and then it switches to the crazy cam profile that gives you the big high RPM power.
When does the Honda engine rev up and down?
When I’m stopped at a red light, the engine revs up to about 2k-3k rpm and then down to 1k rpm. This cycle repeats about once every two seconds. My foot is off the gas, and it happens regardless of whether the clutch is in and I’m in gear or the clutch is out and I’m in neutral. It doesn’t happen consistently; sometimes it behaves normally.
How does the Honda VTEC oil pressure system work?
The system is electronically controlled, and uses special integrated spool valves that do double duty as rocker-shaft holders in the cylinder heads. Based on commands from the system’s electronic control unit, the spool valves selectively direct oil pressure to the rocker arms for specific cylinders.
How often does Honda engine rev at red light?
I have a 1990 manual Honda Civic with ~200k miles. When I’m stopped at a red light, the engine revs up to about 2k-3k rpm and then down to 1k rpm. This cycle repeats about once every two seconds.
How does the VCM work on a Honda?
VCM deactivates specific cylinders by using the VTEC (Variable Valve-Timing and Lift Electronic Control) system to close the intake and exhaust valves while simultaneously the Powertrain Control Module cuts fuel to those cylinders. When operating on three cylinders, the rear cylinder bank is shut down.