TurfBurn said:This is not anything like an EMS... it is a real time knock control device that can individually recognize and control knock on EACH cylinder unlike any other knock systems you will normally see.. It uses sophisticated means to determine specifically when knock is occuring and is very accurate. Very nice little toy, and I swear by having one in the car. I would not tune my car without it. John is a great guy, and a good company. We (NSN) are going to carry them as well in the future and can work with you on it as well.
Later,
Steve
apocman said:I run the J&S along with my MPI,
the J&S can control timing based on knock sensing, once it detects knock it will pull timing only in the cylinder that is knocking and it will put it back as soon as it is safe. You can also have it pull across all of the cylinders. It will also pull timing based on boost or he has preset timing pull maps for the MSP, which will pull timing when you hit a certain rpm range and then add it back after your out of that range. You can also have the J&S use multiple methods as well in any combination for added safety.
The J&S also has patented algorythms that filter out engine noises and only detects actual knock before the human ear can hear it.
When you use an EMS or Piggy back you pull timing across all cylinders ina certain range or the AEM and Hydra do something very much like the J&S, but the don't use the algorythms and they pull across all cylinders and not just the cylinder that needs it
so you can really fine tune the J&S to pull every little bit of HP out of the engine and still protect it at the same time....
CasopoliS said:If it can pull timing as a function of RPM or boost then that seems sorta like what an EMS would do... with the addition of the knock sensor to pull timing. Do you think that an Airflow Logistics AFC + the J&S would be a good Air/Fuel & timing solution? I think I am in need of some timing control... my AFC is good but lately been having problems and I am almost certain timing needs changed.
apocman said:Should work great together!!! I let the J&S worry about the timing on my car and have the MPI do all of the rest of my tuning and some use the J&S and the MPI together to pull timing and be extra safe
So with that said, I would feel that the J&S would work great with most of our EMS/PiggyBack solutions...
apocman said:a ****** two year old could tune with a J&S unit!!!!
you can simply say pull this much timing when you see this much boost
or pull this much timing during this rpm range and the put it back here
or just set it to pull timing when it detects actual knock it will pull as much needed to remove the knock all on it's own and then put it back on it's own.
this is all done by little switches and dials
easy , easy, easy to do
did I tell how easy it is to use????![]()
CasopoliS said:Lots of "or" - is there an "and" in there? I would like to pull timing as a function of boost/rpm AND pull when there is knock.
CasopoliS said:Lots of "or" - is there an "and" in there? I would like to pull timing as a function of boost/rpm AND pull when there is knock.
lcruz64 said:Can you advance timing as well in case you have internals? Or would you need to tune with the piggy and use the J&S just for auto retard?