Hal, related boost controller question: since the boost controller oscillates at 30 Hz (to my recollection), then setting the overboost fuel cut to anything less than 35 ms may be likely to cause problems since the solenoid potentially may not yet have had an opportunity to bring boost down? Is that correct?

My overboost "delay" is set to 5 ms, which I think is too short. I think it would be better to increase this to say 40 ms and bring the psi value down a little bit (rather than inflating the psi value to compensate). Thoughts? Ideally a boost solenoid that operates faster than 30 Hz would be nice. Do any exist?

 

'Over boost delay' refers to how long you must be above the 'boost cut threshold' before it implements a fuel cut. This is helpful when you have mild spikes etc in a map sensor, as to not trigger the over boost cut.

'Boost restore pressure' refers to the manifold pressure the ecu must see before restoring fuel.

I typically run a 100-300ms over boost delay, so a tiny spike won't trigger the over boost cut. I set the boost restore pressure low enough that the car hits a "brick wall" to let the driver know something is wrong (waste gate line came loose, etc). If over boost is 150kpa, my boost restore would be 50-100kpa.

 

Glad you got it all sorted out, and I love the software too

 

Gotcha - thanks Hal. If I datalog at the high sampling rate (5 ms), I can see that boost fluctuates (oscillates) around the set target value. The frequency that it oscillates is 30 Hz as dictated by the boost control solenoid. So that's where I got my thinking that 1/30 (in secs is equivalent to about 33 ms) is how I arrived at 35 ms as the absolute minimum for that delay field. Never mind if this doesn't make sense lol. Thanks for the recommended values...

 

Any upcoming upgrades/additions?

 

Always But unlike some others, we try not to hype stuff before we have it working... things always seem to take way longer than expected.

 

Without giving times what do ya got? haha..also could you PM me the instructions on how to set up the actual 2-step launch control?(not the soft one)

 

PM sent on instructions.

 

Thanks for all the hard work getting the few problematic G35's squared away with the CAN wheel data. Really, really appreciated! I've got wheel slip vs speed dependent boost control set up and working - just need to fine tune.

I feel much better about punching the throttle, knowing that it will let off when it slips too badly rather than continuing to boost...

 

I'm glad to hear that this is finally fixed!

It looks like the same version 1.0.1 firmware on the web site. Are you testing something new/different?

 

PM me your email address, I'll send it over

 

Got it.

Thanks, Hal.

 

Software upgrade?

 

Firmware upgrade to fix a few of the CAN channels for a small subset of cars. Apparently different model year G35's send CAN data with different packet identification data. Hal aggregated data from multiple different years and had Haltech engineers update the firmware to identify the correct data packets and calibration for these problematic cars (mine is a 2004.5 G35 coupe).

I don't think this will impact most cars at all. I did hear the data logger got updated with a few minor fixes... it's on the usual download site. I haven't tried that yet - still playing with the new CAN data (wheel slip, yaw, G sensor) - pretty cool.

 

Anything new in the near future?

 

Define near We are always working on adding value, but nothing coming immediately.

 

Any features being added by years end?

 

SnyperZ, you'll find that Hal only releases information publically once fixes and upgrades are out, working, and tested. No speculation, hype or fanfare - ever... Sorry bud - although if you call Hal and start chatting, he sometimes gives a few hints away...

 

Hey Hal, If you get a chance I would update the first post in this thread, since I am sure a lot of things have changed in the last year on the Haltech. Kudos on the progress so far!

 

just made it through the 23 pages of data

Happy owner of an Haltech Cant wait to get the car back from the tuner Tried to find a pdf manual on the haltech website but don't seem to be able to find it, anyone have it in pdf format?

Quick Q: could I map this for say running E85 then save that map and have a normal petrol map (Maxol E5) and swap between them without damaging the engine?