How much timing you guys pulling on nitrous?
Thread Starter
TECH Fanatic
iTrader: (5)
Joined: Aug 2007
Posts: 1,053
Likes: 1
From: colorado springs Elevation: 6035 ft
How much timing you guys pulling on nitrous? Im just wondering how much I should pull on the 150 shot with the mods in my sig? I looked at my pcmforless tune in tunercats and at 100kpa from 3,000 rpm's to 6000 rpms I have 37 degrees of timing.
no it will affect how much the motor detonates. nitrous speeds up combustion so much you want to retard your timing to accommodate this change. A/F needs to be nice and rich to be on the safe side. I think my nitrous tune on my ls1 was around 12.5 or a little less, cant remember exactly. Also you can get away with more timing if you run some race fuel in it. I would recommend getting a tune, race fuel and switch to a colder range plug if you want that lt1 to live on that big of a shot.
Thread Starter
TECH Fanatic
iTrader: (5)
Joined: Aug 2007
Posts: 1,053
Likes: 1
From: colorado springs Elevation: 6035 ft
I took my car to a tuner up in denver and he lost 4 rwhp over the pcmforless tune. He dropped all my timing tables to 35 wich I beleive is to low
?. I have the mallory 685 to pull timing and he had me pull 12 degrees to start. Im also running tr6's now. Im kind of forced to tune this thing my self since nobody aroun here seems to know what they are doing in tunercats. The tuner was a hp tuner. He was rushing me out of the shop as he had a big money gto behind me to tune so I Felt I was ripped off. I loaded the mailorder tune back in.
?. I have the mallory 685 to pull timing and he had me pull 12 degrees to start. Im also running tr6's now. Im kind of forced to tune this thing my self since nobody aroun here seems to know what they are doing in tunercats. The tuner was a hp tuner. He was rushing me out of the shop as he had a big money gto behind me to tune so I Felt I was ripped off. I loaded the mailorder tune back in.
I took my car to a tuner up in denver and he lost 4 rwhp over the pcmforless tune. He dropped all my timing tables to 35 wich I beleive is to low
?. I have the mallory 685 to pull timing and he had me pull 12 degrees to start. Im also running tr6's now. Im kind of forced to tune this thing my self since nobody aroun here seems to know what they are doing in tunercats. The tuner was a hp tuner. He was rushing me out of the shop as he had a big money gto behind me to tune so I Felt I was ripped off. I loaded the mailorder tune back in.
?. I have the mallory 685 to pull timing and he had me pull 12 degrees to start. Im also running tr6's now. Im kind of forced to tune this thing my self since nobody aroun here seems to know what they are doing in tunercats. The tuner was a hp tuner. He was rushing me out of the shop as he had a big money gto behind me to tune so I Felt I was ripped off. I loaded the mailorder tune back in.
Make sure the A/F ratio is right, i would go richer then 12.5, 11.7 is what Chris/Ray shoot for, you need to find out how much timing was added over stock with that PCM4less tune, if Brian did it, then ask him, i would at least pull 8* too start, then either add or subtract in 2* incromments for best MPH, but do this at the track, just make sure the A/F ratio is good 1st., you have the 685 box, so adjusting timing is at your fingertips.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
