1st Gen Haltech ECU Discussion

Yeah, it'll still let me take a ton of fuel out of transient and improve throttle response and remove jerkiness when getting on and off throttle. It may or may not help with hunting behavior but I have no way of testing that.

 

Cool. Looking forward to trying it.

 

It's crazy to think these guys have been out for so long and still fixing things as significant as this

 

Kind of yeah and kind of no, they were pretty polished on the ESP software. And from what I understand the issues that we are experiencing don't exist on the Nexus hardware. So these are mostly bugs of converting their old platform ecus to using their new platform software. I'm kind of okay with it because pretty much as long as they keep supporting the Nexus they'll keep supporting our Elite. They could have just as easily told folks with the old hardware to kick rocks and use the old software and they wouldn't add any new features. These computers have gotten so much added on to them since the hardware launched and the hardware is still the same. But man is it way faster than ESP and there are so many more options available to you now with Nexus.

 

https://www.youtube.com/watch?v=RpYam6BOKF8

 

I need a new GoPro mount, mine has developed some serious rattle...

https://youtube.com/watch?v=M_SWX40M_OI&feature=share7

 

mounted to the rear window?

 

Yeah, suction cup with two arms that I tightened the shit out of.

 

How many boost units are you up to?

 

10 right now, before boost control was being linear it was spiking to 13 and I was just sort letting it. But now it is predictable and repeatable so I tapered it back to 10 and put 2-3* of timing all around since I had been really conservative with it

 

Ooo I bet that was fun!

 

Yeah, it spools excellent, I'd love to let it rip at 13 with this timing in it. Haven't had time to put detcans back on and test though, safety first and all that. I suspect I'm still nowhere near knock threshold yet though. We have a track day coming up on the 25th and I'm thinking of tossing a tank of E85 in and really turning the advance up to make a pass at 15psi.

 

What kind of timing numbers are you at? 91 octane? You also have that PNW weather in your favor. I can definitely knock mine at 8 psi. I think I have one of the knock prone engines.

 

I've got a pretty good ear for it with the detcans, fat and happy and she can hang all day, don't put enough fuel into it and it'll simulate a coffee can full of bolts. A few 100* days are all we've had this year but I tuned on one of them and there was no knock to be heard. Also yeah we have 92oct here. I've been told but have no proof that Arizona, CA, and Nevada have a lower grade of 91, so much so that BMW tuners derate their normal 91 tunes just for people in those states.

 

Just tried to start the truck in a week, and it won't start. Was out there for a half hour playing with cranking numbers and got it to go once. Updated the firmware halfway through.
This hot weather has been doing this to me intermittently but this is the first time it wouldn't go at all.

Anyone else?

 

The 0-500rpm in high vacuum correction in your fuel map was +19... how are the other cells along that bottom row area, way off maybe like that one?

 

Does it look at base map?

 

Yeah it factors in I'm pretty sure. The crosshairs and output #s fluctuate on that map when cranking

 

Well damn. I don't think that's it but I can 0 that LTFT cell for kicks

 

No i was thinking you might need to raise the rest of your base map around there since that cell specifically isn't usually targeted in cranking but the ones to the right are a bit, hard to tell if it is over fueling though, can't hurt to test both.