how much advance does the stock ECU run in boost?
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#12
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Originally Posted by Mark'sMazda
Im surprised there is that much timing, as the s4 t2's were tuned to run on 87 octane.
Oh, and if you're running pump gas and under 15psi, you should not be going under 15 total degrees of advance.
-Ted
#13
Haven't we ALL heard this
Wow, good thread guys!
I am just getting into the Haltech world and timing is sort of confusing...but this helps!
Thanks
EDIT - How would you observe the advance the stock system runs?
James
I am just getting into the Haltech world and timing is sort of confusing...but this helps!
Thanks
EDIT - How would you observe the advance the stock system runs?
James
Last edited by Wankel7; 04-27-05 at 07:59 PM.
#16
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Extracted from the stock ECU (N332). Should be correct, if my math
was good. The vertical scale is load. I haven't taken the time to
convert it real units yet.
-Henrik
was good. The vertical scale is load. I haven't taken the time to
convert it real units yet.
-Henrik
#17
The mystery of the prize.
Originally Posted by iceblue
Why do you keep posting ADVANCED timing degress under higher boost? You are sapost to retard timming for higher boost and N2O
It can be confusing for people with stock ECU's to discuss this subject with someone using a standalone like a haltech, which is what Jacob is using. Jacob is adjusting the absolute timing, not some signal conditioner / piggy back that is going to retard/advance the stock timing. This is why he wants to know the absolute timing advance under boost with the stock ECU, so he knows where the safe #'s are.
#18
Haven't we ALL heard this
Okie, one more half thread jack question....
When you are running more than stock boost (s5) you have to run a FCD.
So, lets say you are running 14 psi the advance will now be locked at 18 degrees since the FCD is telling the ECU it is still at 8.5 psi?
When you are running more than stock boost (s5) you have to run a FCD.
So, lets say you are running 14 psi the advance will now be locked at 18 degrees since the FCD is telling the ECU it is still at 8.5 psi?
#19
Haven't we ALL heard this
Originally Posted by Henrik
Extracted from the stock ECU (N332). Should be correct, if my math
was good. The vertical scale is load. I haven't taken the time to
convert it real units yet.
-Henrik
was good. The vertical scale is load. I haven't taken the time to
convert it real units yet.
-Henrik
#21
Lives on the Forum
Originally Posted by Wankel7
Okie, one more half thread jack question....
When you are running more than stock boost (s5) you have to run a FCD.
So, lets say you are running 14 psi the advance will now be locked at 18 degrees since the FCD is telling the ECU it is still at 8.5 psi?
When you are running more than stock boost (s5) you have to run a FCD.
So, lets say you are running 14 psi the advance will now be locked at 18 degrees since the FCD is telling the ECU it is still at 8.5 psi?
-Ted
#22
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18 degrees at 14 psi.... lets just say thats close to what I run on the Haltech and my partner in crime runs on his monster turbo third gen with an Autronic ECU...
HOWEVER...... thats with FMIC's, custom fuel systems, Aftermarket ECU's and water injection on the third gen...
18 degrees advance is WAAAAAAAAAAYYYYYYYY much for the stock fuel system, and TMIC (IMO the stock TMIC is USELESS after any sort of turbo mod period.. but thats me) .. especially if you get some bad gas in the tank...
Are we getting a better picture now of why most of us that have given serious thought to to the subject say that an FCD and an SAFC are just a band-aid untill a proper dressing can be put on the wound..
HOWEVER...... thats with FMIC's, custom fuel systems, Aftermarket ECU's and water injection on the third gen...
18 degrees advance is WAAAAAAAAAAYYYYYYYY much for the stock fuel system, and TMIC (IMO the stock TMIC is USELESS after any sort of turbo mod period.. but thats me) .. especially if you get some bad gas in the tank...
Are we getting a better picture now of why most of us that have given serious thought to to the subject say that an FCD and an SAFC are just a band-aid untill a proper dressing can be put on the wound..
Last edited by YearsOfDecay; 04-28-05 at 08:33 AM.
#23
Haven't we ALL heard this
Originally Posted by RETed
That is correct if you're running a clamp-type FCD.
-Ted
-Ted
Is the clamp type FCD the only type that we use on the FC?
Hum, maybe that is why my engine was getting pissed at 13psi with intake temps passing 50C on my stock ecu.hhhhhummmmmmm
Was, being the past tense for that motor
James
#25
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Originally Posted by Wankel7
Is the clamp type FCD the only type that we use on the FC?
The GReddy FCD is.
The HKS FCD is.
The *old* Racing Beat FCD was not.
This was a resistive type, which just fooled the ECU into thinking it was running less boost; it was basically a 200-ohm resistor inline with the signal lead.
Hum, maybe that is why my engine was getting pissed at 13psi with intake temps passing 50C on my stock ecu.hhhhhummmmmmm
-Ted