Integrated Bypass

[TJM01]

I was finally able to get a good look at the bypass KB uses on there 2v kit and I'm a bit confused about something.

I was under the impression that a bypass should not be run off of an intake runner. KB seems to have it integrated so that it's right off of the #5 runner.

I thought this would cause problems while the bypass is open. Won't that cylinder not have an equal amount of air like the others?

I thought this would cause hesitation during normal driving?

Is this an issue with bigger blower?

It seems to work for this kit very well, I'm just wondering why.

[Flo Bee]

Dude, your way of thinking goes right along with my own. Wouldn't the pressures be totally thrown off? Seems like bypass should happen before you begin distribution to each runner, or else you should be relieving each runner of an equal amount of boost pressure.

Maybe I'm an idiot... I mean I don't make blower kits, but that's my initial impression from what you've told me.

[Michael Johnson]

The bypass is only open when a vacuum is present. My guess is the location of the bypass doesn't matter when the air flow is at a low cfm rate. Once air flow increases to where a vacuum isn't present the valve shuts and air flows through the intake as designed.

Also the open house design of the KB manifold may make placement of the bypass a non-issue. There may not be enough runner length left to be concerned about.

[Flo Bee]

Originally posted by Michael Johnson
Also the open house design of the KB manifold may make placement of the bypass a non-issue. There may not be enough runner length left to be concerned about.

That's got to be it.

[TJM01]

I agree - the open intake design would allow for that.