Honda and Acura Car Forums banner
1 - 7 of 7 Posts

·
Registered
Joined
·
2,049 Posts
Well the the secondaries open up at a certain RPM or around Vtec engagement. They stay closed to gain bottom end torque, but open up for high end HP. I havent disconnected the vaccum to mine yet after going OBDI, but i dont think its all that big of a deal right now. In your case, boost, yeah sure pull em out, youll want the most airflow possible with more PSI bombarding itself towards the head.
 

·
Registered
Joined
·
866 Posts
You'll want more plenum volume when you boost, so leave them in but disconnect them.

And until you boost I would leave them be so you have more low end torque. Though it does give you more power like 500 rpms lower I like my torque. Also do you really need more horsepower at 3700 rpm? It's not like your racing that low.
 
1 - 7 of 7 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top