Liquid Anarchy

iTrader: (2)

Ok... this is kindof an odd question.

I recently heard a bunch of things (from semi-knowlagable people) about wet nitrous systems getting "hung up" in very "curvey" manifolds (IE Mustang 5-0's) and that got me wondering about the VDI manifold, and the 5/6th ports.

With this newly aquired (and probably false) information, I got to thinking. Is there any way to eliminate the non-flowing sections of manifold? So, here's my conclusion.

As some people might know, I've got an off Electric 5/6th&VDI system planned out for my car (which is on hold right now, due to snapping an oil control ring in half) that involves using the stock solinoids, and signals from the factory ECU.

I was thinking, with my system, should I set up the toggle switch (for the nitrous, duh) to work with my E-5/6&VDI system, so whenever I arm my system, the 5/6th ports pop open, and the VDI goes to the high setting? I mean, it couldn't hurt (other than losing a little bit of low-end torque) could it? Plus, it would be a great way to make sure my system is working properly (flip the switch, and see if everything moves) and I might be able to convince ricers that that's all the switch does! (Have a stealthy nitrous setup in mind)

Any input from anyone? The only thing I'm slightly afraid of is if there is any way the voltage could "backfeed" in the system, and somehow whenever both the 5/6th & VDI's are open, it would trigger the nitrous arming... but I doubt that.

Anyway, is this a good idea? Or am I just being over-cautious? Or is whoever told me about nitrous "hanging up" in the manifolds full of ****? Thanks ~Colby

SureShot

Even assuming the low speed runners were fully charged with air/nitrous/fuel, the total trapped volume is less than maybe 50 cubic inches. At the most, you would get a short surge as you back down and the VDI opens the low side.

scathcart

Nitrous system will not arm unless you have the master siwtch armed. Just wire it as such.

Yes, the solenoids operate on 12V power, so it would be possible to operate the auxilary ports and VDI opening via the nitrous arming.

If you'd like, I could 'paint' you a wiring diagram.

The wet nitrous problem comes with engines moving less air: IE : a mustang engine with 8 runners. The fuel is able to pool in low spots without the extra air running through to keep it moving. However, a lot of that is related to positioning of the foggers.

Lately I've been considering making a spray-bore system for RX-7's, which would go between the upper and lower intake manifolds. It would elminate any VDI problems, not require permanent holes, and operate a lot better.

The auxilary port being closed idea is a good one though... I don't like the idea of nitrous getting into a "cave like that.... however, I don't think that for the short time it would be in there, it would create much of a problem. The nitrous would not pressurize the intake runners, simply fill that area to a higher pressure, and give a small surge when the auxilary ports open.

Clever boy.