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E38 Custom OS Testing
Hi All,
Just looking for a few volunteers to start testing some custom OS's for the E38. Because these are still in development the number of vehicles will be limited so any changes won't need to be applied over 20 vehicle types should there be any issues. Paul has been running one in he's Holden for over a month now with no side effects, so we are happy they are not going to cause any oddities.
Development on these custom OS's is also not a priority at this stage, they are a work in progress among all the other tasks we have going on. Main reason for this is the factory OS pretty much offers everything people need to tune any combo without the need for a custom OS.
All we ask is that you are running the latest software and V2 firmware releases and that you are able to test the custom OS's without needing a detailed walk-through on how things are done. Please don't put your hand up if you are just 'interested' to see what it's about or if you won't have full access to the vehicle that will be getting tested.
As I mentioned, these are not (in our minds) a priority to get completed, you might have to wait a day, a week (or longer) to get the custom OS sent to you, it depends on how we are traveling with other things at the time. However, we feel that it is time to at least get a few people to do some real world testing and provide some feedback.
There is zero documentation written about them too, so you will need to be up to speed on how applying and configuring custom OS's works.
Shoot me a PM for consideration. Don't be offended if we say no, remember we just need a small group to test some specific functions.
People running NOS will be most welcome :grin:
Cheers,
Ross
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Any of these custom OS' work with a MAF and 2 bar map sensor? :)
I ran into some issues with the stock OS and a 2 bar MAP sensor trying to keep the MAF.
Before anyone says ditch the MAF, I might in the future. The above is just an inquiry about the custom OS'. :)
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On an E38 / E67 there should be no issues running the MAF and 2bar, factory cars do it (XLR-V as an example).
When it comes to these controllers there is no need for a custom OS for boost, support is already in there from the factory.
Cheers,
Ross
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Just to make it a little clearer, these custom OS's aren't about big horsepower engines as these ECM's will happily run boosted engines without the need for a custom OS.
I've had a couple of PM's saying that they can be tested on a monster cam engine or twin turbo builds, again, nice engines, but the factory OS will run these fine as is.
Having said that I should at least make clear what the custom OS is all about.
Basically we've added NOS fueling/spark tables, a Valet mode and a Bad Fuel Mode. These options can be enabled via a spare pin on the ECM connector or switched via the V2 on the CAN bus (with optional password access).
Cheers,
Ross
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I am not sure what the problem was but, the g/cyl was limited to .8 g/cyl until 4000rpm give or take at wot. Around 4000 rpm it would jump to 1.10 g/cyl which was very noticeable. This was with a 2 bar sensor(scaled properly), MAF, and using the 2 bar Virtual VE setup. It would also be dangerously lean until 4000 rpm
I went back to a 1 bar sensor/MAF tune using PE to fuel at wot and it works great. I see over 1 g/cyl from the hit now and AFR is good also.
I am not sure what the deal is. Maybe I should start a new thread on it?
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Yes, start a new thread so it doesn't get lost in here.
Cheers,
Ross
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