Timing and Nitrous
Thread Starter
Melting Slicks
Joined: Mar 2004
Posts: 3,472
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From: Lake Ozark, MO
Timing and Nitrous
If I want to run a 100 shot on my 454, How much do I need to retard the timing if anything? Right now I'm at 18-19 degrees initial. I only plan to engage the nitrous selectively (4 or second hit) ....not using it through all the gears.
Race Director
Joined: May 2005
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From: Millington Illinois
St. Jude Donor '08-'09
Safety Car
Joined: Apr 2005
Posts: 3,624
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From: Dale City VA
I agree with a low compression motor running good gas, and only 100 shot your safe staying with 0 retard. If it were mine I would not touch anything... but since its not mine and I don't want to see you break anything here is my real answer.
If you look on the web you will see recommendations from 2 degree per 50hp all the way to 2 per 150hp, some of them no doubt smart people who have run lots of bottle on their cars. I'm sure there are more than a few morons out there too. Just because my NO2 kit on my motor can get away with no retard does not mean yours will. Honestly you should go through the paperwork for your kit and follow the mfgr's recommendations. If you don't have the paper work anymore or it dosen't give a timing recommendation call them and do what they say to start with. Take some plug readings and once you have some experience under your belt, tune from there.
Will
If you look on the web you will see recommendations from 2 degree per 50hp all the way to 2 per 150hp, some of them no doubt smart people who have run lots of bottle on their cars. I'm sure there are more than a few morons out there too. Just because my NO2 kit on my motor can get away with no retard does not mean yours will. Honestly you should go through the paperwork for your kit and follow the mfgr's recommendations. If you don't have the paper work anymore or it dosen't give a timing recommendation call them and do what they say to start with. Take some plug readings and once you have some experience under your belt, tune from there.
Will
Safety Car
Joined: Aug 2001
Posts: 3,892
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From: Pettis Performance 565 with two stages of Nitrous Supply nitrous 1.082, 4.61 at 155, 7.17 at 192
I agree with a low compression motor running good gas, and only 100 shot your safe staying with 0 retard. If it were mine I would not touch anything... but since its not mine and I don't want to see you break anything here is my real answer.
If you look on the web you will see recommendations from 2 degree per 50hp all the way to 2 per 150hp, some of them no doubt smart people who have run lots of bottle on their cars. I'm sure there are more than a few morons out there too. Just because my NO2 kit on my motor can get away with no retard does not mean yours will. Honestly you should go through the paperwork for your kit and follow the mfgr's recommendations. If you don't have the paper work anymore or it dosen't give a timing recommendation call them and do what they say to start with. Take some plug readings and once you have some experience under your belt, tune from there.
Will
If you look on the web you will see recommendations from 2 degree per 50hp all the way to 2 per 150hp, some of them no doubt smart people who have run lots of bottle on their cars. I'm sure there are more than a few morons out there too. Just because my NO2 kit on my motor can get away with no retard does not mean yours will. Honestly you should go through the paperwork for your kit and follow the mfgr's recommendations. If you don't have the paper work anymore or it dosen't give a timing recommendation call them and do what they say to start with. Take some plug readings and once you have some experience under your belt, tune from there.
Will
Thread Starter
Melting Slicks
Joined: Mar 2004
Posts: 3,472
Likes: 18
From: Lake Ozark, MO
Just a basic Sniper kit. Engine has 10.25 CR. Not intending to use all the time, most likely will just being installed for "bling" factor (and because I already have the kit) ..... and used very little at all. I will probably get more HP out of the 1/2 NOS throttle spacer 
Last edited by Hvymtlc5; Feb 4, 2007 at 12:53 PM.
