87silverbullet

iTrader: (11)

I talked to an old school racer and we got on the subject of nitrous and timing. We talked about making sure you tune the motor to its best power and then when spraying he started to say that you don't need to pull no timing on the 1st 100 shot of nitrous and you only need to pull the rule of thumb (2 for every 50) after that.

I like to be on the conservative side of everything and in this case I disagreed with him. I might not pull the whole 4 degrees out but I'm not going to just run motor timing on the 1st 100 of a 200shot and then only pull 4 degrees total.

What do you guys think?

minytrker

iTrader: (13)

With an LS motor you my get by like that because the knock sensors would be going crazy and pulling timing but you would be on borrowed time and the motor defiantly wouldn't like it.

Fbodyjunkie06

iTrader: (10)

Maybe on C23, MAYBE C16 or Q16, but not on anything less than that.

ATVracr

iTrader: (5)

If it was an old school 23* SBC head that might be true.
But its not its a 15* LS head and they are more timing sensitive than the old SBC stuff.

Pull timing... check plugs, add jet, pull timing, check plugs.... continue until you reach your goal or it burns up.

87silverbullet

iTrader: (11)

Yes, we were talking about SBC and not ls engines. I'm not takin out the full 4* but I might back it down depending on the plugs.

BOBS99SS

iTrader: (2)

You have to know spray is lightyears ahead of how it was back in the day.some of those old school guys know everything about sbc,bbc but are lost when it comes to new stuff. You need advice call n/o .

ATVracr

iTrader: (5)

It wants what it wants every combo will be a littl different, the plugs will tell you which direction to go in.
The only rule is to pull more than you think it needs and work your way up.

No big changes and only change 1 thing at a time so you can see what effect it had.

87silverbullet

iTrader: (11)

That's the plan. Trust me, I'm NOT trusting his words.

This is a pump gas motor with c16 in the cell for nitrous SBC setup

Fbodyjunkie06

iTrader: (10)

If it has C16 in the standalone you will able to get away with a little more timing than just using pump gas alone.

I'm sure you already knew that though....

Nitro Dave's Nitrous Outlet

iTrader: (25)

Not picking on you but I do want to address this thought process. Yes Octane does play a roll in the tune up but...

Im still looking for the spread sheet that says X amount of octain equals x amount of advance jetting.

With a nitrous motor to much timing is usualy the main reason why someone hurts a motor.