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Author
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Topic: Nitrous
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Jakererickson
New Member
Member # 10940
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posted
 
 
I have a 89 mustang 5.0 What should my timing be set to with a 75 shot of nitrous dry shot thanks
Posts: 4 | From: Sacramento | Registered: May 2011
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turbo50
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Member # 6700
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posted
Plug gap and fuel is more important with that low of nitrous,however, the general rule is 2 degrees retard per 50hp of nitrous.
Me? If you run the car at 14 degrees initial and get away with 87 octane and the thing still dont ping id run a colder plug and close the gap about 8 thousandths then run it on motor with 87 and see if it pings. If not, id up the fuel to 91 or better and leave the timing alone and bump the base fuel pressure up 4-5psi for only 75 horse.
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.........when was the last time YOU built something with YOUR own hands?
I offer quality sidework at reasonable prices. PM ME
Posts: 7606 | From: Discovery Bay, California | Registered: Apr 2006
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Camara90
1%
Member # 134
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posted
What dry kit do you have? I would back the timing down at least 2 and go 1 step colder plug. With the dry kit off the second solenoid it should up the pressure to the fuel regulator and raise fuel pressure for you.
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92GT,stock short block,9:1 TFS 170's,perf rpm,custom cam,1 5/8 shorties,C4 trans.
std. 356hp, 350tq
11.85@111.9mph on motor.
Posts: 2351 | From: 707 | Registered: Jan 2001
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turbo50
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Member # 6700
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posted
quote:
Originally posted by Camara90:
What dry kit do you have? I would back the timing down at least 2 and go 1 step colder plug. With the dry kit off the second solenoid it should up the pressure to the fuel regulator and raise fuel pressure for you.
Agreed, gauges are very important here as well. Bottle pressure and with a dry kit, especially, you want to see the rail spike. Can be up to 80psi, FYI
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.........when was the last time YOU built something with YOUR own hands?
I offer quality sidework at reasonable prices. PM ME
Posts: 7606 | From: Discovery Bay, California | Registered: Apr 2006
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Jakererickson
New Member
Member # 10940
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posted
Ok thanks and I'm always building something but I'm not very nolagable about nos and the place that dyno tuned my car said I need to take it down a couple degrees but then another place tells me I should be fine Becuase its just a 75 shot they also said to have it spray before the mass air flow sensor and I'n the zex instructions it says to do it 6-9 inches from the throttle body and I alsohave my timing set 12 degrees rite now
Posts: 4 | From: Sacramento | Registered: May 2011
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turbo50
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Member # 6700
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posted
quote:
Originally posted by Jakererickson:
Ok thanks and I'm always building something but I'm not very nolagable about nos and the place that dyno tuned my car said I need to take it down a couple degrees but then another place tells me I should be fine Becuase its just a 75 shot they also said to have it spray before the mass air flow sensor and I'n the zex instructions it says to do it 6-9 inches from the throttle body and I alsohave my timing set 12 degrees rite now
Dont listen the idiot that told you to spray your nitrous before the mass air sensor...does heated wire mean anything to them? This is not a VANE meter MAF, which would probably be just as bad of an idea cuz it would probably freeze the vane meter door open or shut....... Jeezuz.
But I digress.........knock your timing down to 10 degrees base dont ever part throttle the car while on the bottle. Hook it to a micro switch for sure. I can go into detail about this if you need.
Put some colder plugs in and some 91 octane, maybe but the fuel pressure up a few psi and you are off like a rocket!!!
Dan
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.........when was the last time YOU built something with YOUR own hands?
I offer quality sidework at reasonable prices. PM ME
Posts: 7606 | From: Discovery Bay, California | Registered: Apr 2006
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Camara90
1%
Member # 134
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posted
What kit is it again? I really like the zex tps activation switch. I think they are like 70 bucks andsuper easy to install and no issues with stupid micro switch movement and not working.
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92GT,stock short block,9:1 TFS 170's,perf rpm,custom cam,1 5/8 shorties,C4 trans.
std. 356hp, 350tq
11.85@111.9mph on motor.
Posts: 2351 | From: 707 | Registered: Jan 2001
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turbo50
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Member # 6700
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posted
quote:
Originally posted by Camara90:
What kit is it again? I really like the zex tps activation switch. I think they are like 70 bucks andsuper easy to install and no issues with stupid micro switch movement and not working.
+1 spring for TPS over micro switch but use what you got if ya have to.
My point is use something and never hit it at part throttle or cruise.
Dan
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.........when was the last time YOU built something with YOUR own hands?
I offer quality sidework at reasonable prices. PM ME
Posts: 7606 | From: Discovery Bay, California | Registered: Apr 2006
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Jakererickson
New Member
Member # 10940
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posted
Ok thanks this was really helpful and I'm not sure what kind of zex kit it is Becuase I didn't install it I know that he said it only engages when I'm at full throttle I think there's somekind of switch at the gas petal not sure tho and I'n the instructions it says that it boosts up the fuel pressure when I spray I do see a vacume line from the zex box to my fuel pressure regulator should I still up the fuel pressure I know this sounds dumb but I really know nothing about this stuff
Posts: 4 | From: Sacramento | Registered: May 2011
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turbo50
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Member # 6700
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posted
quote:
Originally posted by Jakererickson:
Ok thanks this was really helpful and I'm not sure what kind of zex kit it is Becuase I didn't install it I know that he said it only engages when I'm at full throttle I think there's somekind of switch at the gas petal not sure tho and I'n the instructions it says that it boosts up the fuel pressure when I spray I do see a vacume line from the zex box to my fuel pressure regulator should I still up the fuel pressure I know this sounds dumb but I really know nothing about this stuff
Yes, you can see fuel rail spikes in the 80psi range believe it or not with this box.
--------------------
.........when was the last time YOU built something with YOUR own hands?
I offer quality sidework at reasonable prices. PM ME
Posts: 7606 | From: Discovery Bay, California | Registered: Apr 2006
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Camara90
1%
Member # 134
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posted
The zex kit has built in full throttle tps switch and regulates fuel pressure from bottle pressure when you hit the jug. You do not have to adjust fuel pressure. Drop the timing 2 degrees, 1 step colder plugs if you want but not a necessity with a 75 shot, and keep bootle ressure between 900psi and 1050. Have fun and don't hit below 3K RPM.
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92GT,stock short block,9:1 TFS 170's,perf rpm,custom cam,1 5/8 shorties,C4 trans.
std. 356hp, 350tq
11.85@111.9mph on motor.
Posts: 2351 | From: 707 | Registered: Jan 2001
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03SVTPower
CAFords OG
Member # 518
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posted
if you have a ZEX kit, then you don't have NOS! ![[patriot]](graemlins/patriot.gif)
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2003 Redfire "AED" Cobra R.I.P
Posts: 3481 | From: Nor-Cal | Registered: Oct 2001
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Jakererickson
New Member
Member # 10940
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posted
Oh really thanks 03svt really helpful.........anyways thank guys
Posts: 4 | From: Sacramento | Registered: May 2011
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03SVTPower
CAFords OG
Member # 518
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posted
quote:
Originally posted by Jakererickson:
Oh really thanks 03svt really helpful.........anyways thank guys
just dont want ya to sound like an idiot when you tell people what nitrous setup you actually have, you dont wanna say,"yeah im running a 75 shot of nos." then you pop your hood and see zex! lol NOS is a brand just like NX & ZEX
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2003 Redfire "AED" Cobra R.I.P
Posts: 3481 | From: Nor-Cal | Registered: Oct 2001
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cflores
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Member # 7319
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posted
It was my understanding that "NOS" stood for "Nitrous Oxide System", so when someone says they are running NOS thats what it really ment, not that they were actually referring to the brand. I could be wrong. just my .02 cents.
Posts: 85 | From: sacramento | Registered: Dec 2006
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Camara90
1%
Member # 134
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posted
quote:
Originally posted by cflores:
It was my understanding that "NOS" stood for "Nitrous Oxide System", so when someone says they are running NOS thats what it really ment, not that they were actually referring to the brand. I could be wrong. just my .02 cents.
NOS is a brand that stands for Nitrous Oxide System, but he is not using NOS he is using Nitrous. Its kinda like saying hand me a kleenex, its not really a Kleenex it is a tissue but the brand name is so known people call it a kleenex.
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92GT,stock short block,9:1 TFS 170's,perf rpm,custom cam,1 5/8 shorties,C4 trans.
std. 356hp, 350tq
11.85@111.9mph on motor.
Posts: 2351 | From: 707 | Registered: Jan 2001
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