This may take a little bit of explaining, but hear me out. When a progressive controller controls the nitrous, it usually has 2 solenoids. One is opened fully and the other is opened in pulses, for example: if you set the progressive controller to start off at 50% and you have your nitrous system jetted for 150hp shot then when you activate the system it only comes on at 75hp and builds to 150hp in a predetermined time. So, here is my idea. What if you put some sort of adjustable switch, similar to the first stage on the progressive controller that would pulse the second solenoid, but wouldn't delay to full power instead be your full power setting. You would still use jets in you spray bars or fogger nozzles, but if your system was capable of 200hp but that time you only wanted 100hp you could adjust the dial to 50% and you would have a 100hp shot but you wouldn't have to change the jets manually, you would have a dash mounted switch. If you look at it another way you could be running a 100hp shot using the switch at 50% and decide you need just a little more so you adjust the switch to 75% or 100% and you would be running 150hp shot or a 200hp shot respectively. I think this would be possible to build, give me your thoughts. Thanx

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1986 Iroc Z 305
3.23 posi-rear
ported mass-air
custom ram-air
removed air pump, converter, straight pipe no muffler
0-60 5.5 sec
1/4 mile at 102mph
top speed 160mph (racing a mustang)
est 285hp
fiberglass hood
$2000 Alpine stereo hit 135 in spl comp.

 

NOS and Jacobs make N2O controllers that can already do this.

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Tracy /AKA IROCKZ4me
'86 IROC-Z Camaro

• 355 cid
• AFR heads
• Arizona Speed & Marine hydraulic roller cam w/ AFR hydra-rev kit
• modified SLP runners
• TRW forged pistons/ceramic coated
• fully balanced
• Edelbrock headers/ceramic coated
• SLP cat-back
• Paxton supercharger
• Nitrous Express nitrous oxide

My IROC-Z
EFI Performance Club on Yahoo
Club IROC-Z

 

NOS and Jacobs make progressive controllers, which delay the onset of full power. My idea was not to delay full power but to set the level of full power.

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1986 Iroc Z 305
3.23 posi-rear
ported mass-air
custom ram-air
removed air pump, converter, straight pipe no muffler
0-60 5.5 sec
1/4 mile at 102mph
top speed 160mph (racing a mustang)
est 285hp
fiberglass hood
$2000 Alpine stereo hit 135 in spl comp.

 

You can set the max level and how quick you ramp up to max power.
You just need a controler that allows you to set the RPM that flow starts and the RPM that max flow is attained. Just set the RPM that max flow is attained to a much higher RPM than you will really be running. If you start flow at say 3000RPM and want to rev the engine to say 6000 RPM, Then set max flow RPM to say 9000RPM. You will have about 50% power midway between 3000RPM and 9000RPM (6000 RPM)

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Tracy /AKA IROCKZ4me
'86 IROC-Z Camaro

• 355 cid
• AFR heads
• Arizona Speed & Marine hydraulic roller cam w/ AFR hydra-rev kit
• modified SLP runners
• TRW forged pistons/ceramic coated
• fully balanced
• Edelbrock headers/ceramic coated
• SLP cat-back
• Paxton supercharger
• Nitrous Express nitrous oxide

My IROC-Z
EFI Performance Club on Yahoo
Club IROC-Z

 

I know for a fact that the Jacobs controller will only go up to 6500 rpms. So that wouldn't work for that controller. You could use the NOS controller but it isn't rpm sensitive, meaning that you don't set it for a certain rpm to come on. Besides that would be too hard to do while going down the road. Trying to figure out what rpm full power would occur at and where 50% or 75% would be in that scale. My idea would just use the half of the progressive controller that pulses the solenoid. Instead of ramping up to full power, you set full power and hit the button.

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1986 Iroc Z 305
3.23 posi-rear
ported mass-air
custom ram-air
removed air pump, converter, straight pipe no muffler
0-60 5.5 sec
1/4 mile at 102mph
top speed 160mph (racing a mustang)
est 285hp
fiberglass hood
$2000 Alpine stereo hit 135 in spl comp.

 

Have you considered running two stages of nitrous? Just jet the first stage for say 75 HP and the second for say 150 HP. Wire the system through a throttle switch or what ever other control you want.
Then wire the stages to a three way toggle switch. Wire the switch so that when the system is engaged the first stage (75hp) comes on. when you move the switch to the second position the first stage goes off and the second stage (150hp) hits. When you switch to the third position the second stage stays on and the first stage comes back on to give you a total of 225 HP.
You can decide when and to what position you click the toggle switch and at any time you can decide on any of three levels of power.

------------------

Tracy /AKA IROCKZ4me
'86 IROC-Z Camaro

• 355 cid
• AFR heads
• Arizona Speed & Marine hydraulic roller cam w/ AFR hydra-rev kit
• modified SLP runners
• TRW forged pistons/ceramic coated
• fully balanced
• Edelbrock headers/ceramic coated
• SLP cat-back
• Paxton supercharger
• Nitrous Express nitrous oxide

My IROC-Z
EFI Performance Club on Yahoo
Club IROC-Z


[This message has been edited by IROCKZ4me (edited February 04, 2001).]

 

The question is could you use the toggle switch with a fogger system? The way I see it you couldn't because you would have to use the jets installed in the fogger nozzles. You could use a fogger setup and a plate, but not just a fogger. My idea could be used with just a fogger. If the fogger was able to add 300hp then you could jet it for 300hp and adjust the switch for 50% (150hp), 75%(225hp), 25%(75hp), or 100%(300hp) and it would all be controlled by the pulsing of the solenoid. That could give you four stages of N2O with one kit. The technology is there to do it, so why not try. I'm just trying to put an idea out there.

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1986 Iroc Z 305
3.23 posi-rear
ported mass-air
custom ram-air
removed air pump, converter, straight pipe no muffler
0-60 5.5 sec
1/4 mile at 102mph
top speed 160mph (racing a mustang)
est 285hp
fiberglass hood
$2000 Alpine stereo hit 135 in spl comp.

 

Do you mean a fogger system with one fogger nozzle for each port runner? If so you can use two nozzles for each port or you can use the Nitrous Express SX2 nozzle It is two nozzles in one. Pretty cool huh?
If this set up is for a TPI system you can run a single fogger nozzle for each stage in the intake ducting directly in front of the throttle body. If you want two stages installed that way you can just use the SX2 nozzle in place of the single nozzle or you can just add another single nozzle. Also you could use a single nozzle in front of the throttle body for one stage and use a fogger nozzle in each runner port for the second stage.
Or you could use a plate between the T-body & plenum for a stage.
The possibilities are endless.


PS NOS used to, and mays still make an RPM based controller. At one time they had at least two or three different ones out with pricing starting at aroud $200-$300 or so and going up to over $500. They may not make one based on RPM any more though. If they are time based you could probably disable the time out function or set it to an extremely long time. If time out is limited to a certain period and that isn't long enough there is probably a capacitor that controls the clock speed in the controller that could be changed.

[This message has been edited by IROCKZ4me (edited February 04, 2001).]

 

I am contacting NOS about their programmable N2O controller. I believe that it can do what I intend to do because it is time based instead of rpm based. You can set it for any % from 0-100 to start at any delay you like and then control when the power will increse too. You could set it for 75% 5.3 seconds after the initial hit, or you could set it for 25% when the button is pushed with no delay and set it for 25% for as many seconds as you like, although you don't really want to use the N2O for more than 15 seconds anyway. Or you could just wire a rpm switch into the power wire and time the controller for an exaggerated amount of time and let the rpm switch cut the power on the N2O. That nozzle is phat, I've looked at it before. Might be something to look into.

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1986 Iroc Z 305
3.23 posi-rear
ported mass-air
custom ram-air
removed air pump, converter, straight pipe no muffler
0-60 5.5 sec
1/4 mile at 102mph
top speed 160mph (racing a mustang)
est 285hp
fiberglass hood
$2000 Alpine stereo hit 135 in spl comp.

 

systems that pulse solenoids are junk.
solenoids are not meant to be pulsed.
staging is THE only way to go.
Just trying to save you some trouble.
I already went through this 8 years ago.