raffaplymouth wrote:
Hi Guys .. Finally problem solved with NOS Dual Cross Plate and my older Edelbrock solenoids .. the last race 1 week ago with same setting jet of the shit NX plate ...the ET drop from 9.7 to 9.3 an top speed from 233 to 239 kmh ... very very very Fast !! thanks for your help ... now im thinking to install 4 solenoid for make dual stage ... 250 on the launch and 350 in 3rd !!
I'm glad that you were able to overcome some of the issues with the previous plate, but there are other potential problems and with such cross bar plates as well. For instance, ANY crossbar 'style' plate will have the tendency to distribute more nitrous at the far end of the plate than the point of entry for the nitrous. The same goes for the fuel, although to a lesser degree, except that the fuel is introduced at the OPPOSITE end of the nitrous which will give one side of the plate too little fuel and too much nitrous while the other side is vice versa. Now the problem is 2-fold with the dual crossbars. It may not be apparent now, but it will once you attempt to push the limits of your system.
Also while dual stage has the benefit over a single stage of increasing power & benefiting traction, you're leaving a lot on the table in terms of performance with staged systems.
1) The initial lean, hard hit of each stage will cause extra strain on the engine and driveline.
2) The pressure drop from each stage will cause the engine to run progressively richer, with each subsequent hit becoming worse during the run.
3) The cost of components in the form of maintenance increases for all of those solenoids now introduced.
4) The potential rate of failure also increases from the introduction of more generic components.
Here are some other points posted from the Noswizard
Noswizard wrote:
First there were single stage fixed hit kits but these either meant you had to limit yourself to a relatively small increase that you could use early in the run and make do with the fact that you could add more further down the track, or you had to wait till later in the run and use a larger power increase. Either way a vehicle could go much quicker if these fixed hit kits could be "enhanced".
Next came 2 stage, followed by 3 stage and even 4 stage kits, which meant you could start with a small increase very early in the run, followed by "steps" in power as the engine/vehicle can handle each successive step, the further you travel down the track.
The problems with these systems are;
1) The time between each stage being activated is limited to the fixed level of power that's activated at the start of that period, when in fact it could handle a small (but significant) increase for each fraction of a second of that time.
2) Each stage is a "step" in power with the potential to cause problems, in particular destabilising the vehicle.
3) Each stage increases the weight and complexity as well as increasing the obstructions in the air flow.
4) Each time a stage is activated it causes a drop in nitrous pressure which adversely affects the mixture of each stage in use
5) Each stage must be very accurately set up, otherwise the discrepancies stack up each time a stage is activated.
6) Each stage adds more current load which can cause other electrical components to suffer (weak spark for example) or you need to run a bigger batter than normal, adding even more weight
The advantages of a progressive system FAR outweigh those of staged systems in that (only to name some):
1) A progressive system greatly relieves engine & drive line stress
2) Reduce the amount of overall bottle pressure, resulting in more consistent performance
3) Increase traction to a greater degree by "easing" into the run
4) Are fully adjustable for specific setups and track conditions via the controller unit (WoN Max Extreme units also integrate numerous SAFETY features as well)
5) Weigh less
6) Lesser drain on the electrical system
7) Have fewer components to fail (although generic solenoids FAIL QUICKLY when pulsed; used Pulsoids instead)
COSTS LESS than purchasing more and more solenoids, fittings, connectors, etc. for EACH stage added.
has posted to my technical posts. 
