Basic Nitrous Tuning

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camaroman9
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Basic Nitrous Tuning

#1 Post by camaroman9 » Fri Sep 05, 2008 10:41 pm

So, we'll be strapping the bottle on my car this week. I bought this kit from cold fusion Image

It's the single stage kit that's adjustable from 200-400. Basically what i'm wondering is how much timing should i pull to start out with, fuel pressure, etc... The car usually runs on 93 octane, but i'll be running straight 110 through it for the bottle. It's a 383 with ported dart pro 1's 11:1 compression. if anyone has any questions so i can get a better answer, post em up.
C&S carbureted 388 SBC, PT106, TH400, e85
http://www.timsbodyandglass.com
Special thanks to:
Bentune Performance & Fabrication (417)483-5584
Performance Coatings + (417)439-0546
C&R Transmission (417)736-2191

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John_Heard
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Re: Basic Nitrous Tuning

#2 Post by John_Heard » Sat Sep 06, 2008 9:55 am

Robert what jet's do you have to work with? Do you have a seperate fuel pressure regulator and if so which one?

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camaroman9
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Location: Joplin, MO

Re: Basic Nitrous Tuning

#3 Post by camaroman9 » Sat Sep 06, 2008 9:47 pm

John_Heard wrote:Robert what jet's do you have to work with? Do you have a seperate fuel pressure regulator and if so which one?
the jets that the kit came with are .073, .082, .092, .102, .120/116. the paperwork says its adjustable from 175-350+. im running a Y block with an 8an feed to two of the cheapo hollet regulators. the paperwork says to start at 6psi as a baseline.
C&S carbureted 388 SBC, PT106, TH400, e85
http://www.timsbodyandglass.com
Special thanks to:
Bentune Performance & Fabrication (417)483-5584
Performance Coatings + (417)439-0546
C&R Transmission (417)736-2191

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John_Heard
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Re: Basic Nitrous Tuning

#4 Post by John_Heard » Sun Sep 07, 2008 10:01 am

If it were me I'd start with the 82 nitrous, 73 fuel at 6.5psi and 7 degrees retard. That's a 5.9N/F ratio, if you want to be a little more conservative try 8 degrees retard and see what the plugs look like.

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camaroman9
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Location: Joplin, MO

Re: Basic Nitrous Tuning

#5 Post by camaroman9 » Sun Sep 07, 2008 7:06 pm

thanks john. hopefully we'll see you at oir this weekend. do you think i should go a step colder on the plugs or stay at the same heat range. im running the AR3933's.
C&S carbureted 388 SBC, PT106, TH400, e85
http://www.timsbodyandglass.com
Special thanks to:
Bentune Performance & Fabrication (417)483-5584
Performance Coatings + (417)439-0546
C&R Transmission (417)736-2191

User avatar
John_Heard
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Joined: Thu May 12, 2005 11:20 am
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Re: Basic Nitrous Tuning

#6 Post by John_Heard » Sun Sep 07, 2008 10:53 pm

33's are about the same as a -9 NGK, should be ok, might be a little cold but with that shot you're somewhere between an 8 or a 9 anyway. Take some extra plugs with you if you can in case you want to put a fresh one in to take a look at it when making adjustments.

Chris and I are coming to watch, I don't believe I'm going to take the car this time.

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