~Stangzorized~ said:If your sig is correct then I see no reason why you are pinging with 87 octane. The only performance mod you have is mufflers lol.
It's not the octane, it's your car. :canflag:
Sam98 said:That is a ludicrous assertion.There are many factors that affect octane requirements and most of them have nothing to do with the car. That is why the owner's manual says that if the car pings use a higher octane gas. I would certainly agree that it COULD be his car, but that is certainly not the only explanation for his problem...
Mr_Q said:Well I doubt it's the car. This is the first it's EVER pinged. And it's doing it with the first tank of 89 I have ever put in it. I always run 91 in my cars.
If you do the research....by the time the fuel reaches the combustion chamber...due to a number of factors...the octane rating is much lower than it was when you first put it in your tank. 91 can get as low as 85 at ignition!
You learn all of this when you deal with turbo cars. As I did for quite a while with my old Thunderbird Turbocoupe. [gawd I miss that car]
Higher octane gas will almost never do your [modern] engine bad. Then again, it may not benefit it either. So, yes, the cars are designed to run with 87. But 91 can yield a cleaner burn allowing for a more efficient combustion. Plus 91 fuels can contain less particulate matter thus your fuel filter will last longer.
In my case my car has adapted to 91 octane, obviously. Anything lower it pings. It could mean something else is wrong though. So much so that I ping with anything less than 91. I will look in to that.
Turbo92PGT said:I noticed that if i gun it hard in second or higher, around 2k - 2500 rpm mine will ping. I run 87. Any way to adjust the timing on the distributorless ignition?
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?