That is interesting Drifto (like a free AFC!), along with honeycomb removal could increase the range of the MAF sensor as well as helping with load limits.

I think if someone has a nicely setup map that just hits limit it is better to adjust the ECU now we have the limit adjustable though.

 

Thanks! Remind me to buy you a pint of Tim Taylor's Landlord . . .

 

I agree with you on this subject completely. I just thought you guys may find it to be an interesting relic from a time when no one knew anything about how to alter the ECU.

 

Thank you again!

 

Wow, thats awesome! Are you running a J & S Safeguard to keep it from exploding? What ECU? How are you doing this? What engine/turbo are you running, thats amazing on pump, I am assuming just 93 since you didn't mention any alcohol/water injection.

I guess I miss quoted, I know that load and manifold pressure are not exactly the same, but I didn't think it fluctuated to that extent. Would this also change with altitude and barometer changes as well?

 

Whilst thinking of load in terms of kPa is useful in the midrange on a stock turbo and airbox, it isn't really useful or accurate anywhere else. kPa is a unit of pressure, load will have units of % or if you prefer an air mass per cylinder event (say g/half engine rotation). Air mass varies with atmospheric pressure and temperature.

I previously tested the J&S safeguard and I found it to have problems a little like many were having before the knock control sensitivity became adjustable. I had to desensitize it so much to avoid false knock on spool up that it ignored proper knock after that, and this was on stock engine internals. It needed adjustability by RPM, whereas it only had end user adjustability across the entire range. The only thing I can see that the ECU lacks that the J&S has is individual cylinder control.

 

https://www.evolutionm.net/forums/sh...d.php?t=378737

 

ok, the HTA86 is installed, fresh built tranny and pump gas tune is done, I'm seeing 370+Kpa load witouth the honeycomb (lowered the load some and no chance of digesting it into the turbo).

I have ecu 96940011 how would I go about raising the 380kpa cap...has that been identified in this ROM yet? I'm ready to put in the race gas and raise the boost.

 

Not sure if 9694 is the same, but you could try the above xml and see if it looks the same as 9417 and 9653. If not, let me know and I'll have a look at 9694.

 

For 96940011, the tables appear to be at:

2a94
2aa2


Eric

 

Thanks Eric!

 

thanks guys...just to clarify, this is what I'll need to add to the xml and within ecu flash change the values for water/air temp to 255. Correct? If so I'll make time tonight to see if this works by cranking the boost up a little and see if I can log anything above 380kpa load.

<table name="Load modifier Water Temp" category="Misc" address="2a94" type="2D" level="1" scaling="uint8">
<table elements="8"/>
</table>

<table name="Load Modifier Air Temp" category="Misc" address="2aa2" type="2D" level="1" scaling="uint8">
<table elements="8"/>
</table>

 

Hi guys,
Is a 320 2byte load looks ok for you @ 22PSI?
I live at 7200 feet altitude and my baro says 73.9 (10.72PSI)..
In my mind, 320 load = 2.2 x 10.72 : 23.5 PSI boost... JDM reads 22 and I have been looking for a leak without any result...
Can you please give me your opinion in order to know if it will be reasonable in this conditions to maintain 20PSI boost (may be 300 load) on high rev?
I have 0 knock but I guess my turbo is becoming a very hard worker...
Thanx.
---------------------------------------------------------------------------------------------------------------
K&N Drop in filter / 3" exhaust / GM 3 ports / Walbro pump / Lower & Upper pipes / 92 octane

 

I tried this while at lunch, still pegging 380kpa, I raised the boost even more and it's peaking 380kpa but holding that value further out to higher rpms. I'm logging 2byte load btw.

 

Disappointed it doesn't work on the 8 when it appears to on the 9. There are some code differences on the 8, I'll look into it further.

If any high torque 8 or 9 owners can test and report back, that will help!