[kern417]

Originally Posted by neonnblack

A little late to this party.. Kern, at least for MHD any bit of boost above target will get you throttle closer, and no, you shouldn't feel it at all. My car does it frequently when reviewing logs.

My most recent log. MHD stage 2, revised 91 octane map. Max requested boost 18.1. Timing advance 9.5. 12.5 AFR

https://datazap.me/u/neonnblack/log-...ta=4-5-6-20-23

Thanks for the data. I updated the original post.

It looks like you have poor timing on cylinder 1. I have some of the same problems. Have you gapped your plugs or swapped plugs?

[neonnblack]

Originally Posted by kern417

Thanks for the data. I updated the original post.

It looks like you have poor timing on cylinder 1. I have some of the same problems. Have you gapped your plugs or swapped plugs?

I haven't. I will at some point. MHD seems un concerned with it, as long as larger corrections aren't on adjacent cylinders.

[kern417]

Originally Posted by neonnblack

I haven't. I will at some point. MHD seems un concerned with it, as long as larger corrections aren't on adjacent cylinders.

Yeah, I'm curious. I think it's interesting because usually it's the cylinder that's farthest away from the throttle body getting timing pull, not the closest. I wonder if air is having difficulty navigating around that sharp turn.

[GT500R]

Originally Posted by kern417

Thanks for the data. I updated the original post.

It looks like you have poor timing on cylinder 1. I have some of the same problems. Have you gapped your plugs or swapped plugs?

And 4?

[neonnblack]

Also don't forget im running acn91 fuel and it's shit. could have a bit of a factor.

[enemigo13]

everybody has timing corrections on 1st cylinder. you need to tune it out with a bit rising knock detection threshold, then it is ok.

Originally Posted by kern417

Thanks for the data. I updated the original post.

It looks like you have poor timing on cylinder 1. I have some of the same problems. Have you gapped your plugs or swapped plugs?

[kern417]

Originally Posted by GT500R

And 4?

Yep 4 too, but it looked like it started to catch up by the time it got to redline. Whereas Cyl 1 couldn't go above 4°-5°

Originally Posted by neonnblack

Also don't forget im running acn91 fuel and it's shit. could have a bit of a factor.

Yeah, definitely could be. Does MHD have an ACN tune?

Originally Posted by enemigo13

everybody has timing corrections on 1st cylinder. you need to tune it out with a bit rising knock detection threshold, then it is ok.

From what I see it's 50/50. Some people have clean timing across the board. I just want to know why cyl 1 tends to pull timing and I'll feel better about it.

[neonnblack]

MHD doesn't have a labeled acn91. there most recent b58 update changed their regular 91 map to work with the fuel better though.

i.e. before the update i had to use octane booster and with the update i no longer need it.

[Boomsatty]

Take a look and see what you think. MHD stage 2 on stock DP and intake. 93oct

https://datazap.me/u/boomscatty/stag...25-26-27-28-29
https://datazap.me/u/boomscatty/mhd-...25-26-27-28-29
https://datazap.me/u/boomscatty/mhd-...25-26-27-28-29

[Boomsatty]

Originally Posted by kern417

So one of the reasons I made this thread is being shown. I'm having trouble seeing the difference between Stage 1 and Stage 2. Are there any other stage 2 logs out there? I thought it had a higher boost target. And I don't really see how it's taking advantage of a downpipe or why it's needed.

I just posted 3 Stage 2 MHD logs here.

[kern417]

Originally Posted by Boomsatty

Take a look and see what you think. MHD stage 2 on stock DP and intake. 93oct

https://datazap.me/u/boomscatty/stag...25-26-27-28-29
https://datazap.me/u/boomscatty/mhd-...25-26-27-28-29
https://datazap.me/u/boomscatty/mhd-...25-26-27-28-29

thank for posting. it looks like yours is only targetting 16.5-17psi compared to others that target 18+. But everything looks good compared to target values. I wonder why yours has a lower boost target? I don't think it would have anything to do with the downpipe. Did you run it for a while and let everything adapt?

[kern417]

So I had to get my Bootmod3 account reset, and it ended up erasing all of my old logs. Even the links in here don't work anymore. That + enjoying the datazap interface has motivated me to start backing up my logs on there. For any other BM3 users, I highly recommend it. Export the CSV, upload to datazap, and it does everything for you.

This are my stock log. Just reposting for future reference.
https://datazap.me/u/kern4179/stock-191109?log=0&data=3

Also, if you guys think it would be helpful to copy a link of a clean log under each tune, let me know.

[Boomsatty]

Originally Posted by kern417

thank for posting. it looks like yours is only targetting 16.5-17psi compared to others that target 18+. But everything looks good compared to target values. I wonder why yours has a lower boost target? I don't think it would have anything to do with the downpipe. Did you run it for a while and let everything adapt?

I’ve had it in the car for a couple days now but haven’t done many WOT pulls yet. How many pulls or how much time does it usually take to get in the zone?

[kern417]

Originally Posted by Boomsatty

I’ve had it in the car for a couple days now but haven’t done many WOT pulls yet. How many pulls or how much time does it usually take to get in the zone?

Just 2-3

[OzBMR]

Originally Posted by kern417

thank for posting. it looks like yours is only targetting 16.5-17psi compared to others that target 18+. But everything looks good compared to target values. I wonder why yours has a lower boost target? I don't think it would have anything to do with the downpipe. Did you run it for a while and let everything adapt?

Low ambient temps close to freezing likely explain the lower boost levels. Engine management is Load/Torque based. Load target looks about right for a 93 map at 180 peak tapering to 160 up top. Cold air is more dense achieving cylinder fill target at a lower boost level.

Agree, everything looks good in the logs.

[OzBMR]

Originally Posted by kern417

So I had to get my Bootmod3 account reset, and it ended up erasing all of my old logs. Even the links in here don't work anymore. That + enjoying the datazap interface has motivated me to start backing up my logs on there. For any other BM3 users, I highly recommend it. Export the CSV, upload to datazap, and it does everything for you.

This are my stock log. Just reposting for future reference.
https://datazap.me/u/kern4179/stock-191109?log=0&data=3

Also, if you guys think it would be helpful to copy a link of a clean log under each tune, let me know.

That sucks.

4th gear runs would be good, Load targets are typically lower in the first three gears.

[OzBMR]

Originally Posted by neonnblack

A little late to this party.. Kern, at least for MHD any bit of boost above target will get you throttle closer, and no, you shouldn't feel it at all. My car does it frequently when reviewing logs.

My most recent log. MHD stage 2, revised 91 octane map. Max requested boost 18.1. Timing advance 9.5. 12.5 AFR

https://datazap.me/u/neonnblack/log-...ta=4-5-6-20-23

Looks good. It looks the same as the MHD Stage 2 93 octane Load target profile just lower timing due to reduced octane.

[Boomsatty]

Originally Posted by OzBMR

Low ambient temps close to freezing likely explain the lower boost levels. Engine management is Load/Torque based. Load target looks about right for a 93 map at 180 peak tapering to 160 up top. Cold air is more dense achieving cylinder fill target at a lower boost level.

Agree, everything looks good in the logs.

Thanks for that! Timing and everything look good? Think I should replace/re-gap plugs?

[kern417]

Originally Posted by Boomsatty

Thanks for that! Timing and everything look good? Think I should replace/re-gap plugs?

It could help. Your cylinder 1 is lagging behind but a lot of people tend to have that issue. Regapping mine helped, but didn't eliminate the issue.

[Boomsatty]

Originally Posted by kern417

It could help. Your cylinder 1 is lagging behind but a lot of people tend to have that issue. Regapping mine helped, but didn't eliminate the issue.

Cool. What did you gap to? 22?

[kern417]

Originally Posted by Boomsatty

Cool. What did you gap to? 22?

Yep gapped the stock plugs to 0.022-0.024. I was good until I updated to BM3's v2.0 tune, then i started getting some knock detected. Regapping got rid of the knock, but I still have lower timing on cylinder 1. It tends to catch up by redline, but in the mid-rpm there's some pull.

[bacon_45]

http://www.bootmod3.net/log?id=5ddbc833c090c670d017873b
Hey guys, here is my e30 stage 2 log I did! its a long one for best results, thank you!