* Automatic transmissions don't have a throttle body: BOVs are designed to vent excess boost pressure from the intake manifold, which is connected to the throttle body. Automatic transmissions don't have a throttle body in the traditional sense, as the transmission controls the engine's speed and power output.
* No need for a BOV: Automatic transmissions typically have a pressure control system that manages boost pressure and prevents excessive buildup. A BOV would be redundant and could even interfere with the transmission's operation.
* Potential damage: Installing a BOV on an automatic transmission could disrupt the pressure balance within the system, leading to problems like:
* Transmission slipping: The BOV venting could affect the pressure required for smooth gear changes.
* Transmission damage: Excessive pressure fluctuations can cause damage to the transmission components.
* Engine misfires: The sudden pressure drop from a BOV can lead to engine misfires, especially at high boost levels.
What to do instead:
* Consider a diverter valve: A diverter valve redirects the excess boost pressure back into the intake manifold, preventing pressure loss and potential problems.
* Focus on tuning: Instead of a BOV, focus on tuning your car's engine and transmission for optimal performance and smooth operation.
In summary: Installing a traditional BOV on an automatic VTEC engine car is not advisable and can cause damage. Instead, consider a diverter valve or prioritize proper tuning for improved performance and longevity.