Ignition Diagram needed for running a J&S Safeguard
11-04-2011, 03:25 PM
#18
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I would believe it would be easy to connect since it's only ignition signals and power? but i wouldn't have a clue what to do with the TPS signals.
11-04-2011, 03:44 PM
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01-19-2016, 08:10 PM
#20
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What is the consensus on these? I am tempted to buy one (interceptor - smart coil specific) for my build but would like some more information on it before I pull the trigger. Its about $1k so not that cheap either.
This is the model:
http://www.jandssafeguard.com/8ChInt...terceptor.html
I would use it with Haltech ps1k.
Have anybody used them and found them to be as good as claims are?
This is the model:
http://www.jandssafeguard.com/8ChInt...terceptor.html
I would use it with Haltech ps1k.
Have anybody used them and found them to be as good as claims are?
01-20-2016, 02:59 AM
#21
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The J&S units are the best aftermarket knock systems out there...
Interesting fact, John Pizzuto (the designed/owner) reverse-engineered our KLR, and used that as inspiration for his first J&S Safeguard.
Interesting fact, John Pizzuto (the designed/owner) reverse-engineered our KLR, and used that as inspiration for his first J&S Safeguard.
01-20-2016, 10:33 AM
#22
Edit: never mind found my answer...remembered once I got the to site
I'm at work so a little busy to look more than I have but regarding to J&S which version model are people using on our cars?
I'm at work so a little busy to look more than I have but regarding to J&S which version model are people using on our cars?
Last edited by gruhsy; 01-20-2016 at 12:57 PM.
01-20-2016, 10:59 AM
#23
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12-25-2016, 03:09 AM
#24
Sorry for the confusion but no, I did not reverse engineer the KLR.
At the time, I was a technician at Hughes Aircraft. In my spare time, I was working on an analog "retard all" knock controller when the Road & Track article on the 944 Turbo came out.
I hadn't thought of individual cylinder control until I saw the article. The fact that it could be done through a distributor is all I needed to get started. I became obsessed with making one for my Fiat 131 with home brew turbo.
I knew it would have to be a digital controller, but I had no experience. I bought a surplus AIM 65 uP trainer and started learning 6502 assembly code. This was a fortunate choice, since it was very similar to the 68HC11 used in the early SafeGuards.
My analog system had a pretty good scheme to filter out piston slap. I came up with a software algorithm to do it digitally, and tested it on the AIM.
That formed the basis of the SafeGuard's thresholding and detection scheme.
By then it was 1989, when Hughes "gave me the opportunity" to work full time on the project.
While Steve Dinan was buying the analog controller from me for his turbo kits and repackaging it (a box within a nicer box), I continued working on the digital version, taking two more years to make it work as well as the analog version, releasing it in 1991.
At the time, I was a technician at Hughes Aircraft. In my spare time, I was working on an analog "retard all" knock controller when the Road & Track article on the 944 Turbo came out.
I hadn't thought of individual cylinder control until I saw the article. The fact that it could be done through a distributor is all I needed to get started. I became obsessed with making one for my Fiat 131 with home brew turbo.
I knew it would have to be a digital controller, but I had no experience. I bought a surplus AIM 65 uP trainer and started learning 6502 assembly code. This was a fortunate choice, since it was very similar to the 68HC11 used in the early SafeGuards.
My analog system had a pretty good scheme to filter out piston slap. I came up with a software algorithm to do it digitally, and tested it on the AIM.
That formed the basis of the SafeGuard's thresholding and detection scheme.
By then it was 1989, when Hughes "gave me the opportunity" to work full time on the project.
While Steve Dinan was buying the analog controller from me for his turbo kits and repackaging it (a box within a nicer box), I continued working on the digital version, taking two more years to make it work as well as the analog version, releasing it in 1991.
