no knock at all?? i figured the stock map would be way to much
The stock map is VERY conservative....think about it, this is what the factory sets a car at that they wil offer a 5yr 60k mile warranty on. Advancing the timing will usually increase power, but also increases risk of knock/detonation. This is why running huge injectors with a piggy back and just pulling fuel til it isn't rich is just plain retarded.....our stock computer advances timing everytime you pull fuel......go to far and......you know the rest.
The stock map is VERY conservative....think about it, this is what the factory sets a car at that they wil offer a 5yr 60k mile warranty on. Advancing the timing will usually increase power, but also increases risk of knock/detonation. This is why running huge injectors with a piggy back and just pulling fuel til it isn't rich is just plain retarded.....our stock computer advances timing everytime you pull fuel......go to far and......you know the rest.
thats bad information, the stock timing curve is designed for the stock turbo,compression etc.with a bigger turbo it is different without getting into dynamics of airflow and cylinder pressure.
if i read correctly the topic pertains to guys running megasquirt.no two motors are the same.the smallest difference such as brand of fuel can mean the difference between 2 more degrees of timing.the only way to find out how much timing you need is to tune that specific car and watch knock.
it all boils down to the setup
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thats bad information, the stock timing curve is designed for the stock turbo,compression etc.with a bigger turbo it is different without getting into dynamics of airflow and cylinder pressure.
if i read correctly the topic pertains to guys running megasquirt.no two motors are the same.the smallest difference such as brand of fuel can mean the difference between 2 more degrees of timing.the only way to find out how much timing you need is to tune that specific car and watch knock.
it all boils down to the setup
My mistake......I didn't pay attention to which category I was under....just went to the latest EMS tuning post (I am running the AEM). As for that being bad info, I'm not sure which part you are referring to. I realize that the stock timing curve is for the stock turbo, compression etc....but if you are running proper Air/Fuel ratio, whether you are running big turbo, stock turbo, whatever, the stock timing map will work and is very conservative. I have tuned numerous AEM EMS, and I have never seen ANY knock running the stock timing map, and unless we get decent gains from advancing the timing, that is where we leave it. Obviously if you have a built motor, things change as well as with higher octane fuel.....I was assuming pump gas. I agree that you need to tune every car differently, I was just trying to answer his question about stock timing being to much.....Sorry if I mislead anyone.
the only reason why i said anything at all is because you have to be careful what you say on these forums.i have tuned a countless number of srts with aem and i dont think i have wound up with two similar timing maps.
26 to 27 on pump gas. Race gas seems that we can get away with 32 to 36 deppending on outside temps.
on what kind of turbo are you talking about? you put 36* on a 50 trim at 22 psi you are asking for problems even if you are ramping it from low timing where torque crosses horsepower.outside temps are almost completely irrelevant whereas intake temps are but still not as important as peak cylinder pressure,airflow,squish and quench
the only reason why i said anything at all is because you have to be careful what you say on these forums.i have tuned a countless number of srts with aem and i dont think i have wound up with two similar timing maps.
I agree about watching what you say, which is why I said that running big injectors and pulling fuel on stock computer is insane....I see people telling others to do that all the time, and then I read later that they blew the motor. Again, I wasn't giving advice, just telling what I run.
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400 + hp guys what are you running for timing
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