Setting up my NOS

[Txyoungguns]

My Nos says to run colder plugs and to back my timeing off for my bigger shots. I have a 2000 Z28 but I can not info on plugs temps and numbers and I have a DiabloSport Predator programer but no one can tell me what% to back off my timming a WOT am all ears guys.

[Danger731]

1 degree per 100 shot

[98Camarod]

Autolite 103's, NGK TR6's, these plugs are colder than stock. You can get a timing tuner to take the timing out only when the nitrous is activated. This is so it does not interfere with the n/a tune.

[LS2Tuner]

My Nos says to run colder plugs and to back my timeing off for my bigger shots. I have a 2000 Z28 but I can not info on plugs temps and numbers and I have a DiabloSport Predator programer but no one can tell me what% to back off my timming a WOT am all ears guys.

How much do you plan on spraying......? Also what fuel pump and are you running a adj. regulator or is it all stock...?
If it's a wet kit you can get away with a 100 all day with "stock" timing....... If you have the Diablo tune it already advanced your timing so be carefull there!!!

[Txyoungguns]

I am running a stock fuel pump. I have changed the timing back at WOT by what it says 2%. Running jets 34 fuel and 54 N2O for a 125 shot.

[andy670ho]

Autolite 103's, NGK TR6's, these plugs are colder than stock. You can get a timing tuner to take the timing out only when the nitrous is activated. This is so it does not interfere with the n/a tune.

I agree with the timing tuner, I love mine, very easy to install and works like a charm.

[LS2Tuner]

I am running a stock fuel pump. I have changed the timing back at WOT by what it says 2%. Running jets 34 fuel and 54 N2O for a 125 shot.

2% is alot for only 125 shot......Let's say it had 38* total that means your pulling 7.6* out which is way more than you need to!!! 1% would be fine. You don't know what your fuel pressures at....?

[mrr23]

2% is alot for only 125 shot......Let's say it had 38* total that means your pulling 7.6* out which is way more than you need to!!! 1% would be fine. You don't know what your fuel pressures at....?

maybe my math is off, but 2% is only .76*. 20% is 7.6*

[LS2Tuner]

maybe my math is off, but 2% is only .76*. 20% is 7.6*

Your right....... I was thinking 20% in my head all the early Predators I used were 10%,15%,& 20% ect. for timing adjustments.
But it has been years since I used one on a pcm that old they are good with coming up with updates to download from there site.

[sobaka79]

Autolite 103's, NGK TR6's, these plugs are colder than stock. You can get a timing tuner to take the timing out only when the nitrous is activated. This is so it does not interfere with the n/a tune.

i dont know anything about timing tuners, can you give me a suggestion or point me in the right direction? i have a tune that i want to keep except under nos

[98Camarod]

Harris Speed Works sells them, on their site go to Nitrous controllers, and pick window switches and timing tuners, they are $250. Many places sell them, but HSW has top notch customer service.

[Txyoungguns]

So if I am reading this right my stock timeing is 38* and I need to get 2* @WOT reterted. So what % do I need to back off my timing my math really sucks. I have steped up to a high flow fuel pump w/pressure guage in a piller pod.

[mrr23]

38* x 5% (.05) = 1.9* so, in your handheld select -5%.

[coupe00]

I agree with the timing tuner, I love mine, very easy to install and works like a charm.

where can you get it? I havent been able to find one

[98Camarod]

Harris Speed Works has one.

[CODE4LS1]

You can also try to use iridium plugs, work like a charm