Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

Hard wiring Vtec Solenoid?

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Old Sep 8, 2007 | 05:29 AM
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Joecivic94's Avatar
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Default Hard wiring Vtec Solenoid?

Is there anyway i can hard wire my Vtec solenoid so that it is always on?
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Old Sep 8, 2007 | 07:30 AM
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Default Re: Hard wiring Vtec Solenoid? (Joecivic94)

Why would you want to do that? You'd lose power in all RPMs and throttle angles below the factory VTEC crossover. The higher lift, duration, and increased valve overlap will kill your low end power. Probably idle like crap, although I haven't tried it.

If the ECU doesn't activate VTEC, it's because you're making more power w/out it. And yes, even at WOT; at RPMs below 4500 you're making more power w/out VTEC than you would be making if you forced it on.
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Old Aug 13, 2023 | 09:41 AM
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Default Re: Hard wiring Vtec Solenoid? (Joecivic94)

Originally Posted by suspendedHatch
Why would you want to do that? You'd lose power in all RPMs and throttle angles below the factory VTEC crossover. The higher lift, duration, and increased valve overlap will kill your low end power. Probably idle like crap, although I haven't tried it.

If the ECU doesn't activate VTEC, it's because you're making more power w/out it. And yes, even at WOT; at RPMs below 4500 you're making more power w/out VTEC than you would be making if you forced it on.
Not true, we turned the vtec on in a Honda crv and it is always on and it is as snappy as hell, and gets about 4mpg better now.
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Old Aug 13, 2023 | 08:15 PM
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Default Re: Hard wiring Vtec Solenoid? (Joecivic94)

Originally Posted by bruco
Not true, we turned the vtec on in a Honda crv and it is always on and it is as snappy as hell, and gets about 4mpg better now.
Bullsh1t. A first generation CRV doesn't even have VTEC, so lets assume that you are referring to a second generation CRV. In this application, VTEC would normally be engaged at 2200 RPM, so all highway operation would be higher RPM that that anyway, so HOW you engaged VTEC would make no difference in fuel economy.

Just because the valve cover says that you have VTEC doesn't make it so... the CRV has a very limited, economic version that is loosely labeled VTEC. It is NOT a performance related system like those found in the OG C30A and B16A.
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