1988RedT2

Nope! I be epoxy-ing!

Just wanted to make sure I had to, that's all.

I like my 750 RPM idle!

Rotaryman88

The reason why some people(if not most) remove those things that make the car "user friendly" are because those same things make the car not "mechanic friendly" as far as I'm concerned. When you are building an engine that isn't intended to be daily driven..and is directed more towards racing, you don't want all that emissions crap in your way everytime you have to pull something off, or replace the motor. It makes for a very clean engine bay, easy motor pulls, and as time goes on, it's one less thing that can break and have you wondering whats wrong w/ your car..the less you have under the hood, the less that can go wrong. Now, I'm not trying to tell everybody to run outside right now and rip their emissions off..it doesnt make sense to if your using your car as a fun weekend ride or daily driver...but from a racing point of view..emissions suck.

ColinRX7

I agree with that but anyone in that type of application I think is silly to be using a stock EFI computer for that very reason. The whole system is designed to run stock with all those components there. To 'delete' the components is just a bandaid to the real problem.



And what's so complex about a BACV anyways?

Cheers!

fair enough... so how many people race their cars more then 50% of the time legitamently?



The motorsports forum on nopistons.com doesn't get too much traffic.

1988RedT2

My T2 is one of six cars (okay, four running cars, a running truck, and a parts T2) that my wife and I own. The T2 gets driven to and from the strip, and around the neighborhood every weekend or two just to keep rigor mortis from setting in. This cars sole purpose is to get down the strip in a hurry. We've put less than a thousand miles on it since we got it two years ago.

ILUVMY88CABRIO

Getting rid of all of that **** makes working on the car so much easier. When the AE was together, I could remove the TB/UIM in less than 5 min. And like Rotaryman said it is one less thing to break.

1988RedT2

True enough, but as with all things, there is a point at which one should stop. Sex with a hooker is okay once in a while, but you don't want her to move in...

ColinRX7

LOL. I like the analogy, and I agree 100%

UsfDr

I would also rid my engine of all of the emissions equipment, but the BACV is not for emissions. It doesn't require any special concern when building an engine. I will put one on everyone of my vehicles race or daily driver. The purpose of the BACV or IACV (Bypass air concrol valve or Idle air control valve) is to take filtered air and move it directly to the combustion chamber bypassing the turbo, piping, intercooler, throttle body and upper manifold.



The result is imediate air to the engine when its starving to breathe. This would occur in low idle, high load situations. Such as A/C on at idle, power steering at low speeds, braking hard at low speeds, etc...



I would run it! It does nothing but help the engine and keep it at a certain idle speed. Whats not to like about it?



UsfDr

pengaru

wrong, the purpose is to manage idle. It is implemented by adding a bypass of the throttle(s) that is controlled by the ECU.