Nitrous will need you to look down into the plug, at the base of the porcelain. The plug looks ok overall, I can't tell the anelment line on the ground strap. But you want that blue line on the knee
That depends if the car is running well with that afr no reason to change it. To verify I would need a plug from an N/A wot pull to check from. I have seen as lean as 13.5 na wot. Big thing is to give the engine what it wants, let the plugs tell you what's right.@a91what
I know I am living in the Dark Ages, but I do not have a wideband or a tuning device. However, I do have an old SVO extender which allows me to bypass the rev limiter and adjust the air fuel ratio at wide open throttle. That being said, it is currently set at 13 to 1, should I leave it where it be, or should I richen it up?
Joe
That depends if the car is running well with that afr no reason to change it. To verify I would need a plug from an N/A wot pull to check from. I have seen as lean as 13.5 na wot. Big thing is to give the engine what it wants, let the plugs tell you what's right.
needs more timing in it for sure... but take a 5/8" hole saw and run it along the back side of the nut and pull the plug apart. you'll be able to get us a better picture of the fuel ring.
just remember you will not hurt a motor going lean on nitrous... you'll burn it up when you have too much timing.
SO lets get the fuel taken care of first then bring the timing back.
haha im sure some ones going to not believe me about the going lean but its what ever they dont have to believe me...
just keep them from looking like this and you'll be good!
haha im sure some ones going to not believe me about the going lean but its what ever they dont have to believe me...
just keep them from looking like this and you'll be good!
haha im sure some ones going to not believe me about the going lean but its what ever they dont have to believe me...
just keep them from looking like this and you'll be good!
correct... too rich and it will lift a ring landI have read several posts by Monty on YB where he claims the same. Timing and too rich kills pistons.
Joe
even as long as ive been doing this im still learning every time out.7 pistons this year in o'Neil's car. 1800+ PPh in that single plate is not a happy camper .
@RangerJoe for what it's worth I am still learning every time we go to the track . Derrick is far more versed in nitrous tune ups. But please feel free to keep tagging me as I like to see the plugs to compare and contrast from what I have seen .
11.5-11.7 is too rich for anything even large quantities of boost.
12-12.5 is the magic number in boost
I have never had a wideband on a nitrous car, always read the plugs.
Disclaimer on AFR every engine wants something a little different. Give it what it wants.
they way i understand it... if there isnt enough fuel to burn... there just isnt enough to burn. the timing on the other hand is where you have problemsnever heard going lean wont hurt the motor...can you please explain?
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