When to spray
When can or when should you spray ,, well 2 gears you should not spray in is 1st and 5th the reason being is that in first you will just sit and spin but with practice you might be able to learn how to do it,, with 5th that is the weakest gear on the clutch and tranny due to it is a highway gear and not made to handle the sudden kick of power..
And try not to spray until 4500-5000 rpm to make sure the engine is nice an spinning and try to stop by 7500-7800 so you wont bounce and cause some damage
What is the best bottle pressure to run and how to get that much pressure
When you are going to spray you want your bottle at the highest pressure you can get but not to dangerous 1300 is extremely high and dangerous your burst disk might blow,, 1000-1200 is the best pressure to get the most out of your kit below that you will feel it but not as hard.,,with bottle pressure of 600 you really wont feel that much at all
To achieve this you should get a bottle blanket and or a bottle heater,,,, and YES other companys blankets and heaters will work for other bottles
What kind of times will I get with n2o
Well it depends on you but here is a easy way to figure it out,, with a 50 shot take off .5-.75 off your average time with a 100 shot take off 1-1.5 off your average time this has been tested with timeslips from other gas heads
Do I need internal mods in my engine
You should only need internal mods with a shot of about 100 or higher if higher then 100 then I recommend piston, rods, vaulves, springs, retainers, cams, cam gears
Can I run cams with n2o
I have checked with 90% of the manufactures that make cams and see if they recommend or think their cams work with n2o, and so far the only companys that say theirs will work are
Crower makes a set that they say works with n2o, JUN stage 1 says it can handle n2o and ZEX makes a set that works well with n2o,, most other companys say they have not tested with n2o and do not recommend it and say it sould void warrenty
My car has high miles can I still run n2o
Yes you can still run n2o but you are putting extreme strain on the engine at on time so it could damage it I recommend a wet shot for this to make sure you have enough fuel and retard the timing alittle more and also do not spray above 50 to keep it safe
What is the jetting needed
NOS Jetting for Single Fogger wet/dry?
Extra HP
Jetting N20 / Fuel
Recommended Retard
Jetting for single fogger wet:
50
.037/.022
0 degrees retard
60
.039/.024
1 degrees retard (NOS recomends no retard)
70
.041/.026
1-2 degrees retard
80
.043/.028
2-3 degrees retard
Jetting for single fogger dry:
40
.034/.044
no retard
50
.032/.042
1 degrees retard (NOS recommends no retard)
60
.034/.042
1-2 degrees retard (your choice NOS recommends 1 if done)
70
.041/.036
2-3 degrees retard
80
.044/.034**
2-3 degrees
Zex™ Kit (#82011)
55hp 65hp 75hp
Nitrous Jet 32 35 38
Fuel Jet 36 34 32
Ignition Retard 0° 2° 4°
Can an Auto Tranny handle a 55 shot?
Auto trannies take better advantage of N2O than manuals since it shifts faster and you don't have to lift between gears. An auto tranny should easily handle 55HP of extra power; if anything, the torque converter isn't in question, rather the clutches/bands in the first two forward gears. Nevertheless, you should have NO problems with the 55HP dry setup
How much Horse Power gains will I see with N²0?
The shot is equivalent to the Horse Power gain. 55shot=55hp (although it's not exact, that's the main idea). So if you went with a 75 shot of N20 than you would expect a 75 HP increase
Where do I mount my switch?
Well, if it's a standard Zex kit you have an endless amount of locations. I've seen people mount all their switches by the ebrake. I also see people cut a piece of ABS Plastic and mount them in that pocket down by the drink holders (Si version). You also could mount in that change draw like you said. In that location you can not close the drawer unless the switch is completely off (Safer). There really is no end to the locations. I on the other hand mounted mine PROUDLY right next to the Sunroof button and mirror adjustment button (sorry no pics). As far as keeping your hands on the wheel, just learn to launch with it armed in first gear and everything should be fine.
What should I run my Fuel psi at for a Zex 65-75 shot?
For a 75 shot I would run the PSI at 44 with line off. That would put your idal psi at about 41 idal psi is measured with line on of course). I actually ran my psi at 51 with line off. But was running real rich. I dyno'ed it at 44 psi with line off and the air/fuel was right on. Remember it's better to run rich then lean. And with a dry system you need the psi up higher than normal
Average prices for the kits
Okay here are some AVERAGE prices for the kits please don’t quote me
NEW used 3-6 months 6+months
ZEX
$500.00 $400.00 $300.00
NOS DRY”5122”
$500 $350.00 $300.00
NOS WET
$600 $400.00 $350.00
NX
$550 $350.00 $300.00
Venom
$1100 $700.00 $500.00
Purge Kit
$160 $75.00 $40.00
Bottle heater
$100 $75.00 $50.00
Bottle opener
$190 $75 $65.00
n2o bottle 10lb
$150 $100 $100
n2o Jets
between $3-6 each
Summit Pricing:
#MSD-8956 RPM Window Activation Switch = $76.95
#MSD-8744 RPM Modules 4000-4800 = $20.69
#MSD-8748 RPM Modules 8000-8800 = $20.69
#MSD-8961 MSD High Current Relay DPST = $25.95
TOTAL = $148.28
And props to
Dave “rzrshrpsi”
And
Me Steve “civicsidude”
And all the NOS techs I put in many calls to them getting info about kits and setups
and to real type r
....
....
....
....
....
....
....
....
....
....
I compiled this list of frequently asked questions. I used one or two of someone else’s replies cause I didn’t feel like typing it all out again. I cut and pasted a lot of the answers, that’s why some don’t seem to fit perfectly with the question but you get the idea.
What kit is better, Zex or NOS, and what’s the difference?
Zex "standard kit"--- everything is self contained,, all the solenoids and pressure regulators are inside the purple box,, uses a electrical signal from "I believe" the CPU to activate the NOS very easy to install...and adjustable from 55-75 shot with out anything extra have seen hit 100 "with NOS jets"
has not been around that long as a company
NOS "MODEL 5122"-- you must put together before installing in to car, kit comes unassembled takes a little longer to install, comes with the pressure regulator and 2 solenoids not self contained, uses a pressure switch style WOT sensor to activate the NOS, adjustable from 50-60 shot with out anything extra. have seen hit 100. been around as a company for a very long time
Zex is a dry system only. NOS comes in different variations. Zex is limited but very safe. NOS is more tunable. Zex is great for a novice user but again it only comes in dry which can only "safely" go up to 75 shot. I know that if you use the NOS jets in a Zex kit you can tune it up to 100+ shot but who in their right mind is going to use a 100+ 'Dry' system. NOS is also nice cause you can jet as low as 40 shot. Zex only has 3 jettings: 55, 65, and 75.
How much to fill up a bottle and how big are they?
Most bottles hold 10 pounds of N²0. The price varies according to where you live. I pay about $3.33 a pound here in Panama City, Florida. That’s because there’s limited supply. You may get a better deal in bigger cities where there is N²0 Dealer competition.
I’m new to N²0, what do I need to run N²0?,
What does an MSD Window switch do and how does it work?, and
What spark plug do I get?
A stock Si motor (or GS-R) can handle a 50 or 55 shot N20 system.. If you are serious about this than you will want to decide on a few things:
1. Which kit do you want to use? I use the Zex Kit but there are many to choose form that all have there own selling points. The Zex is the easiest and I feel the safest as well as the most affordable.
2. Where do you want to start? I would strongly suggest to start out with a low shot like 55 (50 if you go with NOS).
3. What is your ultimate goal. What would you like to see your go do and how high a shot are you looking to go?
Even with a 50 or 55 shot you need to get colder plugs. ANY colder will do the trick. I suggest the NGK BKR7E plugs. Also, it would be a good idea to get a header. You want to move the exhaust out of there as quickly as possible. Next I would suggest a safety switch. I would suggest an MSD Window Activation switch. This switch allows 12V power to your N20 set up only during a certain RPM range (or window). You don't want to shoot at too low an RPM (anything under 4000 is too low) or at too high an RPM (anything over 8000 is too high. Reason is because if you hit your fuel cut off while spraying you will blow your motor.) The Window switch allows you to stay with in this RPM window. Remember also not to spray in 5th gear. The 5th gear in Honda's is the weakest gear and will fail under N20 use.
When can or when should you spray ,, well 2 gears you should not spray in is 1st and 5th the reason being is that in first you will just sit and spin but with practice you might be able to learn how to do it,, with 5th that is the weakest gear on the clutch and tranny due to it is a highway gear and not made to handle the sudden kick of power..
And try not to spray until 4500-5000 rpm to make sure the engine is nice an spinning and try to stop by 7500-7800 so you wont bounce and cause some damage
What is the best bottle pressure to run and how to get that much pressure
When you are going to spray you want your bottle at the highest pressure you can get but not to dangerous 1300 is extremely high and dangerous your burst disk might blow,, 1000-1200 is the best pressure to get the most out of your kit below that you will feel it but not as hard.,,with bottle pressure of 600 you really wont feel that much at all
To achieve this you should get a bottle blanket and or a bottle heater,,,, and YES other companys blankets and heaters will work for other bottles
What kind of times will I get with n2o
Well it depends on you but here is a easy way to figure it out,, with a 50 shot take off .5-.75 off your average time with a 100 shot take off 1-1.5 off your average time this has been tested with timeslips from other gas heads
Do I need internal mods in my engine
You should only need internal mods with a shot of about 100 or higher if higher then 100 then I recommend piston, rods, vaulves, springs, retainers, cams, cam gears
Can I run cams with n2o
I have checked with 90% of the manufactures that make cams and see if they recommend or think their cams work with n2o, and so far the only companys that say theirs will work are
Crower makes a set that they say works with n2o, JUN stage 1 says it can handle n2o and ZEX makes a set that works well with n2o,, most other companys say they have not tested with n2o and do not recommend it and say it sould void warrenty
My car has high miles can I still run n2o
Yes you can still run n2o but you are putting extreme strain on the engine at on time so it could damage it I recommend a wet shot for this to make sure you have enough fuel and retard the timing alittle more and also do not spray above 50 to keep it safe
What is the jetting needed
NOS Jetting for Single Fogger wet/dry?
Extra HP
Jetting N20 / Fuel
Recommended Retard
Jetting for single fogger wet:
50
.037/.022
0 degrees retard
60
.039/.024
1 degrees retard (NOS recomends no retard)
70
.041/.026
1-2 degrees retard
80
.043/.028
2-3 degrees retard
Jetting for single fogger dry:
40
.034/.044
no retard
50
.032/.042
1 degrees retard (NOS recommends no retard)
60
.034/.042
1-2 degrees retard (your choice NOS recommends 1 if done)
70
.041/.036
2-3 degrees retard
80
.044/.034**
2-3 degrees
Zex™ Kit (#82011)
55hp 65hp 75hp
Nitrous Jet 32 35 38
Fuel Jet 36 34 32
Ignition Retard 0° 2° 4°
Can an Auto Tranny handle a 55 shot?
Auto trannies take better advantage of N2O than manuals since it shifts faster and you don't have to lift between gears. An auto tranny should easily handle 55HP of extra power; if anything, the torque converter isn't in question, rather the clutches/bands in the first two forward gears. Nevertheless, you should have NO problems with the 55HP dry setup
How much Horse Power gains will I see with N²0?
The shot is equivalent to the Horse Power gain. 55shot=55hp (although it's not exact, that's the main idea). So if you went with a 75 shot of N20 than you would expect a 75 HP increase
Where do I mount my switch?
Well, if it's a standard Zex kit you have an endless amount of locations. I've seen people mount all their switches by the ebrake. I also see people cut a piece of ABS Plastic and mount them in that pocket down by the drink holders (Si version). You also could mount in that change draw like you said. In that location you can not close the drawer unless the switch is completely off (Safer). There really is no end to the locations. I on the other hand mounted mine PROUDLY right next to the Sunroof button and mirror adjustment button (sorry no pics). As far as keeping your hands on the wheel, just learn to launch with it armed in first gear and everything should be fine.
What should I run my Fuel psi at for a Zex 65-75 shot?
For a 75 shot I would run the PSI at 44 with line off. That would put your idal psi at about 41 idal psi is measured with line on of course). I actually ran my psi at 51 with line off. But was running real rich. I dyno'ed it at 44 psi with line off and the air/fuel was right on. Remember it's better to run rich then lean. And with a dry system you need the psi up higher than normal
Average prices for the kits
Okay here are some AVERAGE prices for the kits please don’t quote me
NEW used 3-6 months 6+months
ZEX
$500.00 $400.00 $300.00
NOS DRY”5122”
$500 $350.00 $300.00
NOS WET
$600 $400.00 $350.00
NX
$550 $350.00 $300.00
Venom
$1100 $700.00 $500.00
Purge Kit
$160 $75.00 $40.00
Bottle heater
$100 $75.00 $50.00
Bottle opener
$190 $75 $65.00
n2o bottle 10lb
$150 $100 $100
n2o Jets
between $3-6 each
Summit Pricing:
#MSD-8956 RPM Window Activation Switch = $76.95
#MSD-8744 RPM Modules 4000-4800 = $20.69
#MSD-8748 RPM Modules 8000-8800 = $20.69
#MSD-8961 MSD High Current Relay DPST = $25.95
TOTAL = $148.28
And props to
Dave “rzrshrpsi”
And
Me Steve “civicsidude”
And all the NOS techs I put in many calls to them getting info about kits and setups
and to real type r
....
....
....
....
....
....
....
....
....
....
I compiled this list of frequently asked questions. I used one or two of someone else’s replies cause I didn’t feel like typing it all out again. I cut and pasted a lot of the answers, that’s why some don’t seem to fit perfectly with the question but you get the idea.
What kit is better, Zex or NOS, and what’s the difference?
Zex "standard kit"--- everything is self contained,, all the solenoids and pressure regulators are inside the purple box,, uses a electrical signal from "I believe" the CPU to activate the NOS very easy to install...and adjustable from 55-75 shot with out anything extra have seen hit 100 "with NOS jets"
has not been around that long as a company
NOS "MODEL 5122"-- you must put together before installing in to car, kit comes unassembled takes a little longer to install, comes with the pressure regulator and 2 solenoids not self contained, uses a pressure switch style WOT sensor to activate the NOS, adjustable from 50-60 shot with out anything extra. have seen hit 100. been around as a company for a very long time
Zex is a dry system only. NOS comes in different variations. Zex is limited but very safe. NOS is more tunable. Zex is great for a novice user but again it only comes in dry which can only "safely" go up to 75 shot. I know that if you use the NOS jets in a Zex kit you can tune it up to 100+ shot but who in their right mind is going to use a 100+ 'Dry' system. NOS is also nice cause you can jet as low as 40 shot. Zex only has 3 jettings: 55, 65, and 75.
How much to fill up a bottle and how big are they?
Most bottles hold 10 pounds of N²0. The price varies according to where you live. I pay about $3.33 a pound here in Panama City, Florida. That’s because there’s limited supply. You may get a better deal in bigger cities where there is N²0 Dealer competition.
I’m new to N²0, what do I need to run N²0?,
What does an MSD Window switch do and how does it work?, and
What spark plug do I get?
A stock Si motor (or GS-R) can handle a 50 or 55 shot N20 system.. If you are serious about this than you will want to decide on a few things:
1. Which kit do you want to use? I use the Zex Kit but there are many to choose form that all have there own selling points. The Zex is the easiest and I feel the safest as well as the most affordable.
2. Where do you want to start? I would strongly suggest to start out with a low shot like 55 (50 if you go with NOS).
3. What is your ultimate goal. What would you like to see your go do and how high a shot are you looking to go?
Even with a 50 or 55 shot you need to get colder plugs. ANY colder will do the trick. I suggest the NGK BKR7E plugs. Also, it would be a good idea to get a header. You want to move the exhaust out of there as quickly as possible. Next I would suggest a safety switch. I would suggest an MSD Window Activation switch. This switch allows 12V power to your N20 set up only during a certain RPM range (or window). You don't want to shoot at too low an RPM (anything under 4000 is too low) or at too high an RPM (anything over 8000 is too high. Reason is because if you hit your fuel cut off while spraying you will blow your motor.) The Window switch allows you to stay with in this RPM window. Remember also not to spray in 5th gear. The 5th gear in Honda's is the weakest gear and will fail under N20 use.
