Omnivalves and Directhit Spark Plugs

[DrexelGuy]

Has anyone on here ever used Omni Valves or Direct Hit Spark Plugs in a build project?

Here are the websites:

http://www.omnivalves.com/index.htm

http://www.directhits.com/

 

[LaGrasta]

Never used either, but had heard about the valves prior.
I don't beleive they will do what they say. If they did, it would have already created a huge ripple effect in the automotive community, especially the manufactures.
My second thought is if it did do what they say, can the rest of my internals stand that much more stress.
The plugs would be eay enough to try but at $225/set, it ain't gonna happen.
Very interesting though and I'd love a first hand account to prove one way or another.

 

[jamyers]

While I'm very skeptical of the imnivalves, the DirectHit sparkplugs look interesting.

Although I wonder about how they compare with an MSD capacitive-discharge ignition...

 

[XPC66]

I looking at putting the PowreValvz in a little turbo engine to see how it behaves. On the face of it they seem like a good idea, but the leap of faith is reticent.

 

[x21]

1988 FORD PASSENGER CARS, MUSTANG, 8 Cylinders, 5.0L 302(E), DirectHits P/N B8225-B $315.00 $315.00

and

1980 FORD PASSENGER CARS, MUSTANG, 6 Cylinders, 3.3L 200, DirectHits P/N B6105-D $255.00 $255.00

EE-YOUCH- That's a heck of a pricetag for either car.

 

[Pinhead]

The problem with the OmniValves, or PowreValvz, is there is very little production. In other words, they aren't making enough of them. Their production process is very slow... I brought them up in the Simple Power Upgrades post.

 

[blueroo]

From what I can tell, the reasoning behind the DirectHits seems logical save for one thing...DirectHits® accumulates ignition power and releases the stored power to the spark gap.

Why/how would you store the igniton power and wouldn't it make better sense to just use it?



As to the omni valves, I'm sooooooo confused

 

[wallaka]

From what I can tell, the reasoning behind the DirectHits seems logical save for one thing...DirectHits® accumulates ignition power and releases the stored power to the spark gap.

Why/how would you store the igniton power and wouldn't it make better sense to just use it?

Just sounds like a CD (capacitive discharge) system that has multiple points of capacitance, instead of a central box. I bet it has the same effects as a MSD 6 or equivalent, but possibly less pronounced and for more money.

 

[Thad]

In their explanation of how DirectHit system works there is some mumbo-jumbo about squish velocity (whatever that is?) blowing the arc of the spark away. IIRC the electric arc/ spark moves at the speed of light or something close to it, so this squish velocity should be no problem.
When a plug fires the electrical energy from the ignition power source discharges, none remaining between source and trigger. There is no energy available in the spark plug wires until the system recycles.
Sooooooooooooo, where does the "ignition energy" come from that the DirectHit system at each plug "collects"?

Di-lithium crystals anyone?

 

[StrangeRanger]

It appears to be a CD system with a separate capacitor on each plug. Crane had a similar product a few tears back. They discontinued it due to massive lack of interest.

I see a couple of inherent problems. On this system, the capacitor appears to be permanently affixed to the plug. If so, when you change plugs you have to buy a whole new set of capacitors as well. The other obvious problem is that not all engines have a straight path coming off the plug which would allow the installation.

 

[jamyers]

It appears to be a CD system with a separate capacitor on each plug. Crane had a similar product a few tears back. They discontinued it due to massive lack of interest.

I see a couple of inherent problems. On this system, the capacitor appears to be permanently affixed to the plug. If so, when you change plugs you have to buy a whole new set of capacitors as well. The other obvious problem is that not all engines have a straight path coming off the plug which would allow the installation.

Yup, each plug has it's own cap, so it's storing up the incoming current for a bazillionth-second, then 'zap' releases it.

Makes sense, but I don't see where it'd be better than an MSD box, especially below 3K rpms where the MSD has multiple sparks.

Not to mention the $300+ price tag, which I'd rather spend on a known item like headers, carb, etc....

 

[fb71]

bingo. I would bet an MSD type device would be significantly more effective.