More broken parts for the Bad Bish
as far as ecus go, i myself will use a MoTeC M800 PnP. u can get them as low as $2k in Australia. probably wouldn't be feasible in your car Dave unless u ordered all the advanced features & still u might be limited over using the Gold Box version which still starts over $5k. in my case i'm only shooting for 450whp & even though guys out there are doing well with the stock ecu in that power range, MY CHOICE is MoTeC
very good thread & since we're talking about cam sensors, what does it mean when u pull the sensor out & its covered in oil? does that mean my rings are shot? car is on stock turbo/ecu & doesn't appear to be running any differently. do i need to do a leak down test or pull the turbo & look for oil there as well?? searched everywhere & came up with no info on a "wet" evo cam sensor...
BTW my car is an 03 evo 8 with 16,714 actual miles on it (no cluster swaps here folks) with just a 3" turboback, ets filter, mbc, & a racegas tune on Sunoco 110 leaded
BTW my car is an 03 evo 8 with 16,714 actual miles on it (no cluster swaps here folks) with just a 3" turboback, ets filter, mbc, & a racegas tune on Sunoco 110 leaded
This is normal.
-Em
Evolved Member
Joined: Dec 2003
Posts: 542
Likes: 2
From: Miami fl.
Newbie
Joined: Dec 2003
Posts: 55
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as far as ecus go, i myself will use a MoTeC M800 PnP. u can get them as low as $2k in Australia. probably wouldn't be feasible in your car Dave unless u ordered all the advanced features & still u might be limited over using the Gold Box version which still starts over $5k. in my case i'm only shooting for 450whp & even though guys out there are doing well with the stock ecu in that power range, MY CHOICE is MoTeC
Not everyone is going to be able to, or want to spend that much on an ECU but I'd certainly buy the Haltech stuff before buying another AEM.
I can't believe how often the price of a good ecu is thrown out there.
Look at the amount of money we put into these cars. For some reason this industry likes to put the ecu at the bottom of the importance tree when the reality is, it's the heart of everything. You rely on it's capabilities and accuracy for so many things it's ridiculous. It does something wrong or inconsistently once and it can cost you a ton of money, and it's not like that's an unheard of concern, it happens all the time.
It'll all come around in time, just hasn't gotten there yet in this market. Enough people lose motors and races and they'll start to put two and two together and realize that the ECU DOES matter.
Look at the amount of money we put into these cars. For some reason this industry likes to put the ecu at the bottom of the importance tree when the reality is, it's the heart of everything. You rely on it's capabilities and accuracy for so many things it's ridiculous. It does something wrong or inconsistently once and it can cost you a ton of money, and it's not like that's an unheard of concern, it happens all the time.
It'll all come around in time, just hasn't gotten there yet in this market. Enough people lose motors and races and they'll start to put two and two together and realize that the ECU DOES matter.
Do you guys think a failing cam sensor on a stock ecu could cause a lot of misfire issues and not blow the car up? I have a mostly stock car and it used to run 30+psi on stock ignition no issues for 1000's of miles and now I can run over 25psi even with 50/50 e85/93 and I couldnt do over 25psi on e85 with a Dynatek arc2. I have changed everything in the ignition.
Thanks
Thanks
I can't believe how often the price of a good ecu is thrown out there.
Look at the amount of money we put into these cars. For some reason this industry likes to put the ecu at the bottom of the importance tree when the reality is, it's the heart of everything. You rely on it's capabilities and accuracy for so many things it's ridiculous. It does something wrong or inconsistently once and it can cost you a ton of money, and it's not like that's an unheard of concern, it happens all the time.
It'll all come around in time, just hasn't gotten there yet in this market. Enough people lose motors and races and they'll start to put two and two together and realize that the ECU DOES matter.
Look at the amount of money we put into these cars. For some reason this industry likes to put the ecu at the bottom of the importance tree when the reality is, it's the heart of everything. You rely on it's capabilities and accuracy for so many things it's ridiculous. It does something wrong or inconsistently once and it can cost you a ton of money, and it's not like that's an unheard of concern, it happens all the time.
It'll all come around in time, just hasn't gotten there yet in this market. Enough people lose motors and races and they'll start to put two and two together and realize that the ECU DOES matter.
Mike
Let me play devil's advocate here. A lot of people are blaming AEM for engine failures but is there any dataloged evidence showing that the AEM actually advanced timing or did some other crazy operation that caused an engine failure? It's very easy to blow up an engine with any ECU if you make a mistake.
Now I know most (maybe all) of the people weighing in on the AEM have considerable experience so no flames please, as I said, I am playing devil's advocate.
Now I know most (maybe all) of the people weighing in on the AEM have considerable experience so no flames please, as I said, I am playing devil's advocate.
Evolved Member
Joined: Dec 2003
Posts: 542
Likes: 2
From: Miami fl.
delsolid,
There are a few issues with what you said happens when the car looses sync from the sensor and has to restart guess what happens? If you have any additional timing set up for the car to start better it adds that time to the base map and you...........yes, torch the engine again. This happened to us, John Romero found it and the suggestion was to eliminate the extra timing at start up incase it happens again. Same thing happens if the EMS shuts off, which the EMS does when it feels like it.
There are a few issues with what you said happens when the car looses sync from the sensor and has to restart guess what happens? If you have any additional timing set up for the car to start better it adds that time to the base map and you...........yes, torch the engine again. This happened to us, John Romero found it and the suggestion was to eliminate the extra timing at start up incase it happens again. Same thing happens if the EMS shuts off, which the EMS does when it feels like it.
I had datalog evidence on an EVO application that showed exactly what David Buschur described above as to what happens when the ecu resets after loosing the cam signal. It happened once at 9000rpm at over 1000whp and the results were not good. The second time it happened we were lucky it was just at part throttle but then again the log showed what we were actually experiencing.
Last edited by crispeed; Sep 28, 2009 at 11:00 AM.