PCS Tuning (Paul Claude) or HTE Performance (Hassan) for Karbonius CSL airbox tune?

[Arith2]

Don't mean to sway too much from the original topic, but I'm about to install a CSL intake and I'm planning to use Hassan. After talking with him via email, he is able to provide a base tune. For those that have used him, how effective is that base tune? And did you need to tell him ahead of time what modifications were done to the car?

I have a spare DME with the full CSL code. Planning on using that as the base and flashing Hassan's code onto it. I'm also planning on doing a remote tune with him, but wasn't sure what people's experience was like with the base tune.

Base tune is super safe. You'll be running a bit rich which is good. Don't do it for too long because it'll start caking everything in carbon and start having the opposite effect. It'd really take a while for that problem to arise. Can tunes aren't ideal. I've been on his base tune for a few months and it does well enough. It isn't leaning me out like a Buildjournal tune.

His expertise is in the custom tuning but he got it pretty right with the base map.

[eacmen]

A little off topic. But does anyone else on Hassan’s tune get surging issues when going slow (1st gear) over harsh bumps?

[Arith2]

A little off topic. But does anyone else on Hassan’s tune get surging issues when going slow (1st gear) over harsh bumps?

It might be your foot and may not realize it. The throttle is stupid sensitive in 1st and if your throttle map is too aggressive, 20-30% could open the throttle 20 to 40% causing the CSL surge. That's I mostly stay out of first. Even with a stock diff, it'll put some multiply some torque. I'm not sure other than an intermittently bad connection at a sensor or something

[EthanolTurbo]

Base tune is super safe. You'll be running a bit rich which is good. Don't do it for too long because it'll start caking everything in carbon and start having the opposite effect. It'd really take a while for that problem to arise. Can tunes aren't ideal. I've been on his base tune for a few months and it does well enough. It isn't leaning me out like a Buildjournal tune.

His expertise is in the custom tuning but he got it pretty right with the base map.

I am also running an E85 base map from Hassan, have put like 10k miles on it thus far. It isn't100% optimized at lower RPM but runs amazing at high RPM. We will be refining this tune on the dyno at EAS, and then in June I'll throw on SSv1s + 63mm sec 1 and 2 and CSL airbox for a new tune. It's very impressive that a base map drives so good and can be driven so hard.

[i_love_japan]

There are a couple reasons you’d need to ship your DME away. First is if you want to run a functional flap, you need to have the DME physically modified with an additional H-bridge to control the extra actuator. Second is the “official” CSL firmware has a different bootloader and can’t be flashed over OBD2 (nor back to the regular software once it’s running CSL)

There is a hacked version (check the coding and tuning section) that can be flashed via OBD2 and I’m sure Paul would be willing to use that one as a base. Personally I had Kassel do my DME modification and flashed my PCS tune over OBD2.

Paul did mine a few weeks ago and I’m guessing he used the ‘hacked version’ as it was done through OBD. For reference, mine’s a HP with no flap.

Do you know what’s the difference between the ‘official’ and hacked version?

[duracellttu]

For those who use PCS tune with MAP sensor conversion, do you really need to ship your DME?

If you are doing a CSL airbox conversion with the snorkel and flap then you need to get the DME modified and loaded with the CSL base tune and firmware. You don’t necessarily need to send it to PCS specifically. I ended up using Kassel Performance who has great turnaround time and are US based so less expensive shipping. The rest of PCS’s tuning can be done remotely.

[Cubieman]

A little off topic. But does anyone else on Hassan’s tune get surging issues when going slow (1st gear) over harsh bumps?

Mine surges at idle sometimes (HTE/MAP), especially going up my driveway, did this w/ factory CSL tune as well though.

[Casa de Mesa]

Mine surges at idle sometimes (HTE/MAP), especially going up my driveway, did this w/ factory CSL tune as well though.

Is that with the base tune or dyno tuned?

[Cubieman]

Is that with the base tune or dyno tuned?

Both unfortunately. Kassel CSL base tune did it, HTE base/dyno tune same issue.

[eacmen]

Mine surges at idle sometimes (HTE/MAP), especially going up my driveway, did this w/ factory CSL tune as well though.

Do you have sport button turned on or off?

[Cubieman]

Do you have sport button turned on or off?

Off

[Arith2]

Off

It takes maybe 10 minutes to modify and load a throttle map. Maybe try lowering the progression of the non sport button and see if it works. If I'm wrong, I want to know. If it fixes it, well heck yeah. My car doesn't do this really so there's no recreating on my end. Mind you, I'm still on the base map.

[Slideways]

Mine surges at idle sometimes (HTE/MAP), especially going up my driveway, did this w/ factory CSL tune as well though.

This is normal behavior for the CSL tune and it takes getting used to. When pulling away from idle, the revs rise and fall 100 RPMs or so twice before first gear is fully engaged.

[duracellttu]

Mine surges at idle sometimes (HTE/MAP), especially going up my driveway, did this w/ factory CSL tune as well though.

I also noticed this on my original tune (PCS/MAP), but it went away after raising the idle rpm.


My experience:
I was actually at the dyno today with Matt from HD tuning (www.hdtuning.net). Matt is the “go to” guy on the e39 M5 and gave me a good deal to remote tune both my cars today. He made a few comments about what he was seeing in the PCS tune that weren’t encouraging. After all the changes it’s safely running with only slight less power. Hesitation at lower RPMs is gone as well. All good news. Can never felt better on the drive home.

Tunes are black magic to me. You send files off to somebody, get little knowledge on exactly what is being modified and magically you get more (or less) power. Most tuners get hyped from the forum, then you hear how some of those same names with experience cause issues with some cars. It’s tough to find a good tuner. Best bet is to go with somebody who has been in the community and is intimately familiar with our platform and associated mods.

In hindsight, I would have originally gone with HTE but I wasn’t aware of Hassan’s services when I was doing my build. Matt from HD Tuning was great to work with and he gave me confidence the changes he was making were in the interest of making safe reliable power. It was more expensive that these other tuners but it was worth it IMO.

[ZiMMie]

I also noticed this on my original tune (PCS/MAP), but it went away after raising the idle rpm.


My experience:
I was actually at the dyno today with Matt from HD tuning (www.hdtuning.net). Matt is the “go to” guy on the e39 M5 and gave me a good deal to remote tune both my cars today. He made a few comments about what he was seeing in the PCS tune that weren’t encouraging. After all the changes it’s safely running with only slight less power. Hesitation at lower RPMs is gone as well. All good news. Can never felt better on the drive home.

Tubes are black magic to me. You send files off to somebody, get little knowledge on exactly what is being modified and magically you get more (or less) power. Most tuners get hyped from the forum, then you hear how some of those same names with experience cause issues with some cars. It’s tough to find a good tuner. Best bet is to go with somebody who has been in the community and is intimately familiar with our platform and associated mods.

In hindsight, I would have originally gone with HTE but I wasn’t aware of Hassan’s services when I was doing my build. Matt from HD Tuning was great to work with and he gave me confidence the changes he was making were in the interest of making safe reliable power. It was more expensive that these other tuners but it was worth it IMO.

What exactly did he says he didn't like about Paul tune?