Timing on stock motor?
Timing on stock motor? I am trying to see if my timing is advanced so I can spray more. Looking at it with a snap on scanner looks like about 21*-21* at idle. At around 3000 rpm around 40*. Would my timing be advanced or at stock or even retarted? Thanks all. My current tune is mail order from Texas speed and they cant tell me if they changed the timing
My point was....you spray nitrous at WOT. What your timing is at part throttle (3,000rpm) or at idle doesn't matter. You need to see where you're at when you have it floored.
If you're cam'd, chances are your timing is set close to 28* @ WOT. If you want to spray, the rule of thumb is -2* for every 50hp of N2O.
If you're cam'd, chances are your timing is set close to 28* @ WOT. If you want to spray, the rule of thumb is -2* for every 50hp of N2O.
I geuss the scanner fluxuates so much to hold the motor at 6500 or so may be hard to try and read the timing. So do I got any other options here? I guess I could see if my buddy could bring home his scanner again.
It shouldn't fluctuate much at all during WOT. To be safe, you could have someone sit in the passenger seat and call out the timing numbers displayed. It should be somewhere between 24 and 29 degrees (fairly steady) for WOT.
TECH Senior Member
Joined: Apr 2002
Posts: 6,080
Likes: 17
From: So.Cal.
What SSpdDmon means by WOT is wide open throttle regardless of RPM,
or, more specifically, from peak torque to peak power, not just at 6500 RPM;
you can't just increase the RPM to 6500 and look at timing...
you have look at timing as you go from peak torque to peak power under load.
or, more specifically, from peak torque to peak power, not just at 6500 RPM;
you can't just increase the RPM to 6500 and look at timing...
you have look at timing as you go from peak torque to peak power under load.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
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
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Originally Posted by SSpdDmon
It shouldn't fluctuate much at all during WOT. To be safe, you could have someone sit in the passenger seat and call out the timing numbers displayed. It should be somewhere between 24 and 29 degrees (fairly steady) for WOT.
It's not gonna be the same through the band at WOT, the 99 table has a HUGE valley in it.
Originally Posted by Frost
It's not gonna be the same through the band at WOT, the 99 table has a HUGE valley in it.
Originally Posted by 1FSTLS1
I am trying to see if my timing is advanced so I can spray more. Looking at it with a snap on scanner looks like about 21*-21* at idle. At around 3000 rpm around 40*. Would my timing be advanced or at stock or even retarted? Thanks all. My current tune is mail order from Texas speed and they cant tell me if they changed the timing
Dam strait they should be able to tell me that. I have nothing good to say about Texas Speed after that and wont be doing buisness with them any more. So by looking at my timing at idle there is no way to tell if it is advanced or not?
TECH Enthusiast
Joined: Jul 2006
Posts: 747
Likes: 0
From: sofla
Originally Posted by 1FSTLS1
Dam strait they should be able to tell me that. I have nothing good to say about Texas Speed after that and wont be doing buisness with them any more. So by looking at my timing at idle there is no way to tell if it is advanced or not?
Your only option is to hook up a scanner, drive through 2nd or 3rd gear at wide open throttle, and have someone actually watch the scanner to see how much timing you have while at full throttle.
Originally Posted by 1FSTLS1
Dam strait they should be able to tell me that. I have nothing good to say about Texas Speed after that and wont be doing buisness with them any more. So by looking at my timing at idle there is no way to tell if it is advanced or not?
1 - Base Spark in Gear
2 - Base Spark in Park/Neutral
3 - Spark High-Octane
4 - Spark Low-Octane
Last edited by Shallow Bay; Jul 14, 2007 at 04:30 PM.