stand alones and knock sensors
Originally Posted by jyeager
Do most or all stand alones out there respond to knock sensor input?
No sir not all actualy just a few of the mainstream full standalone ECU's have this function. Most of them have knock sensors as an option to the base system.
Chris Macellaro
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From: Spring Hill, TN
Great, do any others besides BS3 have it available?
And can anyone comment on how critical it is to have knock sensor input on a boosted motor? I hear people talking about removing it all the time (especially when using an LS2 motor with an LS1 computer), but I would feel that they are pretty important as a safety net when boosting, unless you are happy to have your motor permanently de-tuned for safety.
And can anyone comment on how critical it is to have knock sensor input on a boosted motor? I hear people talking about removing it all the time (especially when using an LS2 motor with an LS1 computer), but I would feel that they are pretty important as a safety net when boosting, unless you are happy to have your motor permanently de-tuned for safety.
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I was just reading the instructions for the BS3 system. The knock sensor input option is only available on the BS1 system, not the newest one.
That's a problem.
Anyone else know which systems have this?
Or should I be considering the stock PCM? This is for a '69 camaro that might be getting force fed. Since this is being built, not retrofitted I'd assumed a stand-alone system was the way to go. but perhaps the factory computer can do the job and save a bit of money.
That's a problem.
Anyone else know which systems have this?
Or should I be considering the stock PCM? This is for a '69 camaro that might be getting force fed. Since this is being built, not retrofitted I'd assumed a stand-alone system was the way to go. but perhaps the factory computer can do the job and save a bit of money.
Originally Posted by jyeager
I was just reading the instructions for the BS3 system. The knock sensor input option is only available on the BS1 system, not the newest one.
That's a problem.
Anyone else know which systems have this?
Or should I be considering the stock PCM? This is for a '69 camaro that might be getting force fed. Since this is being built, not retrofitted I'd assumed a stand-alone system was the way to go. but perhaps the factory computer can do the job and save a bit of money.
That's a problem.
Anyone else know which systems have this?
Or should I be considering the stock PCM? This is for a '69 camaro that might be getting force fed. Since this is being built, not retrofitted I'd assumed a stand-alone system was the way to go. but perhaps the factory computer can do the job and save a bit of money.
Yes a factory ECU has this option but you can not properly map for boost with it. FAST, FAST XFI also have this option along with AEM EMS and a slew of other systems. The most cost effective route would probably be the FAST system with the knock option if you so desire this feature.
Chris Macellaro
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From: Spring Hill, TN
Chris, thanks for the helpful input. I've already looked in to FAST a bit.
For my edification could you explain why the factory computer can't be mapped properly? I know that the MAP sensor is blind to boost and the computer can't do anything with the boost, but don't people make due pretty well with a boost-referenced regulator and perhaps a rescaled MAF?
For my edification could you explain why the factory computer can't be mapped properly? I know that the MAP sensor is blind to boost and the computer can't do anything with the boost, but don't people make due pretty well with a boost-referenced regulator and perhaps a rescaled MAF?
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Originally Posted by jyeager
Chris, thanks for the helpful input. I've already looked in to FAST a bit.
For my edification could you explain why the factory computer can't be mapped properly? I know that the MAP sensor is blind to boost and the computer can't do anything with the boost, but don't people make due pretty well with a boost-referenced regulator and perhaps a rescaled MAF?
For my edification could you explain why the factory computer can't be mapped properly? I know that the MAP sensor is blind to boost and the computer can't do anything with the boost, but don't people make due pretty well with a boost-referenced regulator and perhaps a rescaled MAF?
Yes they sure can. The reason I stated that is the fact that most OEM computers can not read boost pressure (pressure much above 100 kpa) like you said. But with HP tuners new stuff it does make it possible. My reference was to more of a broad overview of the other OEM's. Sorry about the misunderstanding.
good luck friend
Chris Macellaro
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