TNT nitrous jets?

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Aug 31, 2005 | 08:24 PM

Jonathan@Tick

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From: Mooresville, NC

TNT nitrous jets?

I was just wondering if anyone has ever ran 100 shot jets on the nitrous side and 150 shot jets on the fuel side? This is how my car is right now. Timing is set at 28 degrees and I usually run 100 octane when I spray it. This is how More performance set the jets on there dyno after they said it was a little lean with the 100 shot fuel jet in it. What af ratio should I have with the nitrous? I just bought a wide band af gauge so I can see what it is. I also have a timing tuner, so I can pull timing if necessary. What my main question is, I want to run a 150 shot but am I going to need to install 200 shot fuel jets? Is running richer fuel jets sometimes necessary?

Sep 1, 2005 | 12:29 AM

JoeyGC5

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From: St Joe, MO

what fuel mods do you have? The kit should be balanced, ie no need for the different size jets to compensate. Ideally the air fuel should be in the 11.2-12.0 range (please correct me if I'm wrong). Timing is gonna probably need to be backed off by 3-4 degrees or so. Do you have a logging software? Or just the wideband, uninstalled currently?

Sep 1, 2005 | 01:47 AM

setxws6

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From: Lumberton, TX

TNT recommends high 10.0 to low 11.00s on A/F. Don't up the jetting to compensate for a stock fuel system. Upgrade your fuel pump if you haven't already and also add a booster pump wire.

Sep 1, 2005 | 08:50 AM

Nitro Dave's Nitrous Outlet

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From: Waco, TX

For the best and safe performance I suggest setting the airfuel about 11.8.
Dave

Sep 1, 2005 | 10:36 AM

Jonathan@Tick

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From: Mooresville, NC

Quote:

Originally Posted by setxws6

TNT recommends high 10.0 to low 11.00s on A/F. Don't up the jetting to compensate for a stock fuel system. Upgrade your fuel pump if you haven't already and also add a booster pump wire.

I already have the racetronix in-tank pump and harness, so I shouldn't need to overcompensate on the fuel jets. On the dyno they said it looked a little lean, so they pulled the 100 jets and put in 150 jets. I don't know what the af ratio that day was and the wideband I have now isn't installed yet, however the car made 10 more rwhp after the change to 150 fuel jets, plus they said it was safer. And the bottle pressure was at 900-950 so it didn't have excessively high pressure either. I guess I'll just put the 150 jets in both sides and see what the af ratio is now that I have a better idea what it should be. Thanks for the help!