doggyollie

I have seen these on a site before and I would like to make my own. Anyone remember where this info is or happen to have it handy?

ColinRX7

Take your BACV off and outline it on your material, then go from there..

roadkill669

exactlly. Or use the gasket if it comes off ok

RONIN FC

Or, get a new gasket since your gonna need it anyway.

doggyollie

I knew I could do that. I would like to have the dimensions so I can build the part while my car is still functioning. Also so I can make a new gasket cause it is cheaper than buying a new one.



Anyone have the dimensions?

ColinRX7

BACV removal takes about 10 minutes tops, with minimal coolant spilling. Two bolts. I've done many, not once has the gasket torn on me when removing it. If you are just putting the same one back on, then you don't need a new gasket if you take it off.



If you are worried about it, when you take the old one off, cut a new gasket out of a corn flakes box. It's just a tiny intake gasket.



Pull it off, trace it, put it back on, drive the car again while you make the blockoff for it.

jack

What is the BACV?

ColinRX7

Bypass Air Control Valve



Electronically controlled valve that lets air bypass the throttle plates depending on electrical load (for maintaining steady idle).

Lionheart240

Mine has been blocked off. No air compressor either. What are the advantages?

ColinRX7

Cleaner engine bay?



I can't figure out why people want to keep blocking them off. All it's going to do is hurt you idle speed, or make it inconsistant.



Unless you have a racecar and no electrical load (such as lights, wipers, etc.)