Help me read my nitrous plugs!
Thread Starter
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
A/F ratio gauges are not an accurate way to tune a nitrous motor. They are even more inaccurate when they are plumbed into a header collector and are reading an AVERAGE of those 4 cylinders.
If you have a problem that could cause some damage you are going to have video of it killing the motor, but may not know why.
Oliver, you have stepped up to a much faster set up....everything matters more and is more critical. The margin for error is far less and the consequences are more expensive if you screw up.
If you have a problem that could cause some damage you are going to have video of it killing the motor, but may not know why.
Oliver, you have stepped up to a much faster set up....everything matters more and is more critical. The margin for error is far less and the consequences are more expensive if you screw up.
Thread Starter
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
That's why I usually have the camera pointed at the gauges.. I'll be able to see the oil pressure reading during the pass. The oil pressure gauge is mechanical and I don't know how a data logger could record analog data??
Safety Car
Joined: Aug 2001
Posts: 3,892
Likes: 13
From: Pettis Performance 565 with two stages of Nitrous Supply nitrous 1.082, 4.61 at 155, 7.17 at 192
Data loggers record data in graduations of milli-seconds. If your idea was that great all the pro-mod guys would save thousands in data loggers and hardware and just point a camera at their gauges. I am not saying it is not a good idea to have the camera, I am just afraid you are relying on it too heavily.
About your plugs, were they all fresh new plugs on that run ?
About your plugs, were they all fresh new plugs on that run ?
Thread Starter
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
Data loggers record data in graduations of milli-seconds. If your idea was that great all the pro-mod guys would save thousands in data loggers and hardware and just point a camera at their gauges. I am not saying it is not a good idea to have the camera, I am just afraid you are relying on it too heavily.
About your plugs, were they all fresh new plugs on that run ?
About your plugs, were they all fresh new plugs on that run ?
All the plugs were new. I only drove a little bit around the track to warm up the engine but that's about it...
Safety Car
Joined: Aug 2001
Posts: 3,892
Likes: 13
From: Pettis Performance 565 with two stages of Nitrous Supply nitrous 1.082, 4.61 at 155, 7.17 at 192
Did you read that link I referenced......can you cut a plug like they did, or at least a better pic of the ground strap.
Thread Starter
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
I'll try to get a better pic of one of the plugs today. I won't cut the plug as I only have 2 spare plugs...
Safety Car
Joined: Aug 2001
Posts: 3,892
Likes: 13
From: Pettis Performance 565 with two stages of Nitrous Supply nitrous 1.082, 4.61 at 155, 7.17 at 192
Thread Starter
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
5 Best & 5 Worst Corvette Daily Drivers
Joe Kucinski
The Headlights of Every Corvette Generation Explained
Joe Kucinski
5 Best & 5 Most Overrated Corvette Track Packages of All Time!
Joe Kucinski
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
10 Ugly Corvettes That We Still Kinda Love
Joe Kucinski
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
Race Director
Joined: Jan 2000
Posts: 13,024
Likes: 2,266
From: Corsicana, Tx
2020 C2 of the Year - Modified Winner
2020 Corvette of the Year (performance mods)
C2 of Year Winner (performance mods) 2019
2017 C2 of Year Finalist
I manage to find a few tracks here and there that aren't too picky. Sometimes I only get one or two runs.....some of the ones that let you run all day might surprise you!
JIM
JIM
Race Director
Joined: Nov 2000
Posts: 11,872
Likes: 12
From: Waterloo ontario Canada
Why is it so critical for Oliver to be reading the plugs with a 100 horse shot. This is usually a no brainer and you just put in the suggested jetting, change nothing else and just run????
Sure John you are running large doses and it becomes critical but at Oliver's level it is not.
I have set up at least 6 guys with mustangs with the 100 horse level and other then offering them NO options as to jetting, I keep all the jets and they just go out and run.
I have seen as much as 2 seconds improvement with this level of nitrous, no other change from one weekend to the next and I have never seen or heard of a hurt motor.
One of the guys likes burn out contest and he actually had both his tires ignite with a good fire and he runs on nitrous for most of the run.
It just seems strange to be talking about data loggers with this level of nitrous???
Sure John you are running large doses and it becomes critical but at Oliver's level it is not.
I have set up at least 6 guys with mustangs with the 100 horse level and other then offering them NO options as to jetting, I keep all the jets and they just go out and run.
I have seen as much as 2 seconds improvement with this level of nitrous, no other change from one weekend to the next and I have never seen or heard of a hurt motor.
One of the guys likes burn out contest and he actually had both his tires ignite with a good fire and he runs on nitrous for most of the run.
It just seems strange to be talking about data loggers with this level of nitrous???
Thread Starter
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
Why is it so critical for Oliver to be reading the plugs with a 100 horse shot. This is usually a no brainer and you just put in the suggested jetting, change nothing else and just run????
Sure John you are running large doses and it becomes critical but at Oliver's level it is not.
I have set up at least 6 guys with mustangs with the 100 horse level and other then offering them NO options as to jetting, I keep all the jets and they just go out and run.
I have seen as much as 2 seconds improvement with this level of nitrous, no other change from one weekend to the next and I have never seen or heard of a hurt motor.
One of the guys likes burn out contest and he actually had both his tires ignite with a good fire and he runs on nitrous for most of the run.
It just seems strange to be talking about data loggers with this level of nitrous???
Sure John you are running large doses and it becomes critical but at Oliver's level it is not.
I have set up at least 6 guys with mustangs with the 100 horse level and other then offering them NO options as to jetting, I keep all the jets and they just go out and run.
I have seen as much as 2 seconds improvement with this level of nitrous, no other change from one weekend to the next and I have never seen or heard of a hurt motor.
One of the guys likes burn out contest and he actually had both his tires ignite with a good fire and he runs on nitrous for most of the run.
It just seems strange to be talking about data loggers with this level of nitrous???
I was wondering the same thing..
For the littls 100 shot, it was recommended to gat a $500 fuel pump, all new larger fuel lines, and additional regulator etc. and data loggers.. That would be a expensive 100 shot
.. $2000 investment for a $700 nitrous setup
Safety Car
Joined: Aug 2001
Posts: 3,892
Likes: 13
From: Pettis Performance 565 with two stages of Nitrous Supply nitrous 1.082, 4.61 at 155, 7.17 at 192
Why is it so critical for Oliver to be reading the plugs with a 100 horse shot. This is usually a no brainer and you just put in the suggested jetting, change nothing else and just run????
Sure John you are running large doses and it becomes critical but at Oliver's level it is not.
I have set up at least 6 guys with mustangs with the 100 horse level and other then offering them NO options as to jetting, I keep all the jets and they just go out and run.
I have seen as much as 2 seconds improvement with this level of nitrous, no other change from one weekend to the next and I have never seen or heard of a hurt motor.
One of the guys likes burn out contest and he actually had both his tires ignite with a good fire and he runs on nitrous for most of the run.
It just seems strange to be talking about data loggers with this level of nitrous???
Sure John you are running large doses and it becomes critical but at Oliver's level it is not.
I have set up at least 6 guys with mustangs with the 100 horse level and other then offering them NO options as to jetting, I keep all the jets and they just go out and run.
I have seen as much as 2 seconds improvement with this level of nitrous, no other change from one weekend to the next and I have never seen or heard of a hurt motor.
One of the guys likes burn out contest and he actually had both his tires ignite with a good fire and he runs on nitrous for most of the run.
It just seems strange to be talking about data loggers with this level of nitrous???
I want to get a good look at a fresh plug after it has been run and properly shut down. If it is as pig rich as I suspect we can start to get Olivers tune in the right ballpark
Last edited by 69 N.O.X. RATT; Jan 21, 2007 at 09:32 PM.
Thread Starter
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
Norval, I would not be on Oliver's case to read the plugs if the car was running right on nitrous. He said he had a backfire; he has a problem and needs to find it before something gets hurt. As for the talk about data loggers, I am trying to convince Oliver that a video camera pointed at gauges is not a data logger.
Last edited by GrandSportC3; Jan 21, 2007 at 09:37 PM.
