alright i just got a new job and i'm making bank compared to what i used to... so i want to start looking at my turbo project more seriously... i want a TCD stage II with some sort of engine management... what are the advantages of a Tec3 system? i've think someone said that with a Tec3 all the gauges in the cluster are still functional... is this correct? but other than that, what's better about that than cheaper systems? and how much would i be looking at paying for a Tec3?
Bryan
Questions about running Tec3
[QUOTE="gol10dr1"]tec3 costs anywhere from $2500 to $3k. tec can be programmed to run anything in the car as it has multiple inputs. hell you could run the windows off the tec3 if you wanted. it truly is an amazing system.[/QUOTE]
Well, yes and no. The thing it can't run is the fuel consumption output. This signal from the DME is used by the instant MPG gauge in the dash and the OBC MPG readout. It's also used to calculate the Range readout in the OBC. It's not just a inj duty cycle signal I believe. It's unclear if it can be figured out. I think Steve Dinan told someone(maybe me) one day that the MPG calculation in the DME was impossible to use beyond a certain inj size, as the DME won't interpet the data properly. But your right on the other, every thing else is fine.
RussC
Well, yes and no. The thing it can't run is the fuel consumption output. This signal from the DME is used by the instant MPG gauge in the dash and the OBC MPG readout. It's also used to calculate the Range readout in the OBC. It's not just a inj duty cycle signal I believe. It's unclear if it can be figured out. I think Steve Dinan told someone(maybe me) one day that the MPG calculation in the DME was impossible to use beyond a certain inj size, as the DME won't interpet the data properly. But your right on the other, every thing else is fine.
RussC
Hrm. I bet you could get Megasquirt2 to provide the right signal, especially since you can use C now instead of assembler. I wonder how difficult it is to put an arbitrary signal on a spare pin ? Might need some kind of extra controller that polls the pin value from MS and then converts that into the signal the OBC needs, such that maintaining this stupid signal/waveform isn't a big hassle for MS and it can just be updated at some reasonable interval in the main MS code.
[QUOTE="Matt"]Hrm. I bet you could get Megasquirt2 to provide the right signal, especially since you can use C now instead of assembler. I wonder how difficult it is to put an arbitrary signal on a spare pin ? Might need some kind of extra controller that polls the pin value from MS and then converts that into the signal the OBC needs, such that maintaining this stupid signal/waveform isn't a big hassle for MS and it can just be updated at some reasonable interval in the main MS code.[/QUOTE]
What you would need to do is monitor a stock DME output to even have a clue what the waveform looks like, and how it operates. the compare that output to the other signals at the same time, including inj duty cycle, speed, rpm etc. Then make some educated guesses on how to reproduce it. Just guessing will take way to much time to even get close w/o some hint of how it operates. From there you may be able to figure out a formula or output scheme to mimic it correctly.
Although, if it was that easy, guys like Steve Dinan would have already done, as I know SteveD had the source code for the 059 DME. Yet he still didn't bother to make it work, that tells me something about how complicated it is right there.
RussC
What you would need to do is monitor a stock DME output to even have a clue what the waveform looks like, and how it operates. the compare that output to the other signals at the same time, including inj duty cycle, speed, rpm etc. Then make some educated guesses on how to reproduce it. Just guessing will take way to much time to even get close w/o some hint of how it operates. From there you may be able to figure out a formula or output scheme to mimic it correctly.
Although, if it was that easy, guys like Steve Dinan would have already done, as I know SteveD had the source code for the 059 DME. Yet he still didn't bother to make it work, that tells me something about how complicated it is right there.
RussC
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bmwfan2304
- Posts: 305
- Joined: Feb 12, 2006 12:00 PM
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bmwfan2304
- Posts: 305
- Joined: Feb 12, 2006 12:00 PM
you dont need an msd box with tec3, the tec3 comes with it's own ignition coils. russ, are you sure the signal needs to come from the cluster. i remember dado carvalho (from dtm power) had a problem with tuning with his yellow m3 turbo b/c he installed a stack system cluster upfront and AA did not leave the stockl cluster behind it so there was no signal or an incorrect signal. once they installed the tec3 and tuned it, the problem was gone. does this sound about right or am i misreading your post.
[QUOTE="gol10dr1"]you dont need an msd box with tec3, the tec3 comes with it's own ignition coils. russ, are you sure the signal needs to come from the cluster. i remember dado carvalho (from dtm power) had a problem with tuning with his yellow m3 turbo b/c he installed a stack system cluster upfront and AA did not leave the stockl cluster behind it so there was no signal or an incorrect signal. once they installed the tec3 and tuned it, the problem was gone. does this sound about right or am i misreading your post. [/QUOTE]
The fuel consumption signal is generated by the DME. Its used by the instant MPG gauge in the cluster(inside RPM gauge) and the OBC, was that not clear from my earlier post? If someone is installing a aftermarket gauge cluster, then it needs it's own inputs. I would refer to Duke, as he has a Tec3, and just didn't use a fuel consumption signal. So the MPG stuff in OBC and IFCG don't work.
RussC
The fuel consumption signal is generated by the DME. Its used by the instant MPG gauge in the cluster(inside RPM gauge) and the OBC, was that not clear from my earlier post? If someone is installing a aftermarket gauge cluster, then it needs it's own inputs. I would refer to Duke, as he has a Tec3, and just didn't use a fuel consumption signal. So the MPG stuff in OBC and IFCG don't work.
RussC