"The maximum power we can achieve with a single Pulsoid is 400 bhp @ 16 Volts and 18 Amps."That statement was made quite some time ago and because we're always striving for further improvements, I'm confident we could achieve even better results now, as we're now managing to see 350 hp @ just 12 Volts. At the time that statement was made it was only 250 hp @ 12 Volts and we're yet to see what flow we can now get at 16 Volts but my guess would be between 450 & 500 hp.That answered one of my questions. Thanks, and very impressive might I add.
Pleased to hear you recognise the achievement that represents, as most people wouldn't.I'm interested in the Pulsoids and very much so. I'm non-the-less intrigued by them. But...
There is one thing that baffles me to no end. In your "comparison video's" you demonstrate the 'generic' by using what is the equivalent to a purge solenoid--which flows about a 100 shot at best--plumbed to four (4) dry shot nozzles to show the flow characteristics with nothing said about bottle pressure. In turn, you show eight (8) Pulsoids, in full open form, all plumbed together but with no mention of bottle pressure here either.
First of all let me say that we have not actually posted what I would call "direct" comparison video's. All we have done, is carry out individual tests to achieve particular goals (which we have videoed) and then because we've been asked to do so, we've posted the results (of those I've had time to edit to a suitable size) on our site.
The 2 clips you have mentioned are in no way intended to be representations for comparison purposes and only intended to demonstrate what is contained in each individual clip.
Whilst the solenoid may be used for a purge on high power kits, it is the normal size used on low power kits and until a few years ago that was our main market. Therefore, if I was to do a direct comparison with our 150 hp Pulsoid, it would be fair to use that type of solenoid for that comparison. The ONLY reason we did that test program, was because a customer came to use with THAT kit fitted to his car, wanting us to convert it to one of our systems. We did back to back tests with both kits on the car and the difference was HUGE, so I decided to do some flow testing to see what that looked like. I was appalled at how bad the results were and I know from other tests that I've yet to edit and post, that the kinds of problems demonstrated in that clip apply to most other kits that use the same/similar component "designs".
With regard to bottle pressure AND "contents" - ALL our tests are carried out with the strictest attention to maintaining consistency in this matter, because anything less would defeat the object of the test and I don't like wasting my money by paying wages to prove nothing.
If the demonstration is a direct comparison between our products and any other we use one of 2 methods to achieve a FAIR and direct comparison;
1) Preheat a freshly filled bottle to in excess of the desired pressure (say 1,200 psi) and then allow it to settle down to 1,000 psi before carrying out the test and for each successive test we repeat the process.
2) We take a freshly filled bottle and add a nitrogen boost system to maintain constant delivery pressure.Would it be possible for you take a 'generic' N2O solenoid capable of flowing a 400 shot of nitrous, plumb in the four (4) dry nozzles at 900 psi bottle pressure and show the test that way? In turn, do the same with a Pulsoid in place of the generic?
Yes it would and we may already have such a test on video, it's just that we have MANY hours of video tests on record and I seldom have the time to work on sifting through them and editing them, especially at this time of year when we're very busy dealing with our race customers requirements, however I can assure you the results are similar and our systems deliver much denser nitrous in a more continuous form than ANY other combination of components, which is why I designed them the way they are.
I'll keep your request in mind and see what we can do to either find the previous recording or repeat the test program for you as soon as possible.
One factor to keep in mind however, is that it's not easy to appreciate the difference in density between 2 discharges, without using my UNIQUE technique and I only entrust such knowledge to a trusted circle of associates. Would it be possible to demonstrate a test of amp draw while being pulsed?
Yes that's also possible but should not be required for the reasons given below. One of the problems with all the other solenoids on the market is the pulse action causing heat and added amp draw. If the Pulsoids could prove to be better flowing and at lower amps through out a given cycle, you've got a new buyer.
You're right that heat increases Amp draw and the same applies to our Pulsoids, however there are 2 important differences between our Pulsoids and ALL other solenoids;
1) They are designed for MAXIMUM EFFICIENCY in all respects, including current draw. This means that for a given flow rate you require less Amps (as you've appreciated), therefore we already have a head start on ALL the rest.
2) By using less Amps they generate less heat over a given period of time, compared to other solenoids which use a higher current draw coil.
3) The Pulsoid body is machined from a BILLET of alloy and is therefore a SINGLE, SOLID piece of highly heat conductive metal. Both the internal core (where most heat concentrates) and the outer body are part of this highly heat conductive body and therefore any heat being generated in the coil can be/is conducted away, reducing the amount of increase in heat that would otherwise occur.
Here's a little story for you;
Some years ago, Mike Woods (President of NX) purchased a set of our Pulsoids and subjected them to some bench testing. He reported back to me saying that they performed EXTREMELY WELL but he was VERY CONCERNED because they got very hot. Obviously this showed his IGNORANCE of good solenoid design and I had to point out that ALL solenoid coils get hot but ONLY Pulsoids are designed to conduct that heat away from the coil, to reduce current draw, improve response and prevent coil failure.
He was so impressed by the performance and the design that he wanted to add my Pulsoids to his product range but because of the exchange rate and the greater manufacturing costs of the Pulsoids, we could not supply them at the price he wanted to pay. He then decided to manufacture A COPY of our Pulsoid but in so doing he TOTALLY MISSED ALL the most important aspects of the design and heat conductivity was just one of them. Whilst the base of their latest solenoid is alloy, it is in NO WAY "directly" connected to the heat source, because they still use a very thin SS core tube which screws to the alloy base and they use a loose fitting carbon fiber coil cover, BOTH of which are VERY POOR for heat conductivity.
That's always the case with A COPY, because the people doing the copying are not aware of the principles behind the ORIGINAL design.You already have me interested, now it's just selling me on the product.
The best way to appreciate our Pulsoid design is to buy one/some and test them for yourself, then you know the results are genuine and to your satisfaction. In case you're wondering, I'm a very large distributor of nitrous solenoids in the U.S. so I'm always looking for a new advantage.
You'd have an even BIGGER advantage if we supplied you with our REVO valves, how do you like the sound of ONE Amp?. viewtopic.php?f=5&t=2926I think you'd also find this thread of interest as you seem to have a better understanding of the technical requirements of pulsing technology than most;http://forum.nitrous-advice.org/viewtopic.php?f=5&t=2811
Feel free to drop me a PM with your web site details.Thanks
My pleasure and I look forward to your reply.