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So I have a couple theories that I have held on to since Silber came out with the etec kit years back for the 800. ! was that he touted that he had a way to pull fuel from the etec. This was being done through the dobeck box with what he called a voltage clamp. It was supposed to limit somehow the TPS voltage. Long story short is that it was fussy and didn't work without a dealer connection to reset the TPS then even still many didn't get it to work. The next year it was gone from his control box.
So I took this knowledge and asked the EE's at work about building me a adjustable voltage clamp. I explained what I desired and they told me they wouldn't call what I wanted a voltage clamp.
So they built me what I would call a smoother circuit. It takes the signal from the TPS and transforms it during throttle stabs from what looks like a cliff on the scope to a rolling hill with the same elevation.
I have yet to try this as I hate trying to work with the dealer to set things like the TPS just to try it. Since I didn't buy my sled from the dealer I don't feel they owe me much.
So attached is what the scope looked like. Imagine that this is a very short time. So what I believe it will do is fool the computer into thinking the throttle is being opened slower. If the throttle is actually being opened slower the line will run 1:1 with actual position. It is only on throttle chopping open that it will "lag" the signal to the EMM.
On closing the throttle it is also 1:1 no matter the speed of the chop.
Anyone ever dream of this or try this? Right now it is adjustable with a pot switch but I would likely set it at an give resistance once the sweet spot was found. A couple things I am not sure of is what the ECU does with the TPS information and if it would affect timing to much or even throw the ecu into a fault do to throttle position being off from the increase of rpms. My assumption is that the change I am planning to make is small enough it wouldn't fault. But would lower the acceleration Enrichment.
http://s115.photobucket.com/user/mnflats/media/20180116_141012_zpstoq0f1zy.jpg.html
So I took this knowledge and asked the EE's at work about building me a adjustable voltage clamp. I explained what I desired and they told me they wouldn't call what I wanted a voltage clamp.
So they built me what I would call a smoother circuit. It takes the signal from the TPS and transforms it during throttle stabs from what looks like a cliff on the scope to a rolling hill with the same elevation.
I have yet to try this as I hate trying to work with the dealer to set things like the TPS just to try it. Since I didn't buy my sled from the dealer I don't feel they owe me much.
So attached is what the scope looked like. Imagine that this is a very short time. So what I believe it will do is fool the computer into thinking the throttle is being opened slower. If the throttle is actually being opened slower the line will run 1:1 with actual position. It is only on throttle chopping open that it will "lag" the signal to the EMM.
On closing the throttle it is also 1:1 no matter the speed of the chop.
Anyone ever dream of this or try this? Right now it is adjustable with a pot switch but I would likely set it at an give resistance once the sweet spot was found. A couple things I am not sure of is what the ECU does with the TPS information and if it would affect timing to much or even throw the ecu into a fault do to throttle position being off from the increase of rpms. My assumption is that the change I am planning to make is small enough it wouldn't fault. But would lower the acceleration Enrichment.
http://s115.photobucket.com/user/mnflats/media/20180116_141012_zpstoq0f1zy.jpg.html