I have been thinking of giving nitrous a try and plan to use a Holley Stealth Ram with a dry nitrous setup and 42#/hr injectors and a GM 730 ECM with $8D code modified to spray extra fuel for the nitrous. Since I want to do the under-intake and the engine can probably handle a 200HP shot, then I want to use a progressive controller.

If I pulse the N2O solenoid at a 25Hz rate (21ms on and 21 ms off at 50% duty cycle) and the engine is at 3000 RPM (40ms per all 8 cyl firing). So, if the N2O solenoid is turned on with the distr. ref. pulse, then the first 4 cyls will get most of the 200HP shot of nitrous and the last 4 cyls firing will get less nitrous. The first 4 essentially get the entire 200HP shot at 3000 RPM. As the RPM increases then it all evens out. At 6000 RPM (20 ms per all 8 cyl firing) then it is completely even and all 8 cyls will theoretically get the same amount of nitrous.

I don't know, but 200HP most going to 4 cyls doesn't sit well with me. Even if I change frequency, then I could be a best in a situation where all 8 cyls get the 200HP shot and then wait x cycles before all 8 eight get hit with a 200HP shot. A linear N2O solenoid would be nice Any thoughts on how to get around this. Maybe async open the N2O solenoid to try to even out the 200HP per 4 cyls at low RPM.

I am I missing something or does this sound right??

I would like to run 200HP jets due to it being under-intake. I would like to try using no jets under the intake and put one main jet at the N2O solenoid. Any one have any experience with that type of setup?

One last thing. I am trying to do it on a budget (bad idea when dealing with N2O) and wanted to try using "Cold Fusion" stuff. I have read that the solenoids are the same as NX and have good seals for using progressive controllers. I planned to run two N2O is series. One solenoid would be the safety valve and never have a pulse applied to it. Anyone have any experience with their stuff? I searched but only had three hits without any real info about Cold Fusion in them. The plan is two buy a dry kit with one nozze and just add the distribution blocks and extra lines to each runner.


Thanks,
Junk