MS2/Extra 2.0 beta 14 (20071020)

Post by **jsmcortina** » Sat Oct 20, 2007 10:28 am

Here is beta 14.
Changes in this release.

- Fixed new bug I introduced in the last beta that would have broken nearly all wasted spark trigger wheel installs.

Used karlo's comments to improve "twin trigger"
- Input 1 now fires coil A, input 2 fires coil B. (They were swapped.)
- Make even-fire work (stray code in the source)
- Improve syncing (new variable added)

Find it at:
http://www.msextra.com/ms2extra/files/b ... 071020.zip

James

M52 POWER! · Post by **M52 POWER!** » Sat Oct 20, 2007 11:04 am

Cool, thanks for this! I will try it today and let you know on its success!

-Chris

Xtatic · Post by **Xtatic** » Sat Oct 20, 2007 2:13 pm

so faster syncing will mean quicker starts? (less cranking needed? )

Alex

Post by **jsmcortina** » Sat Oct 20, 2007 4:23 pm

Xtatic wrote:so faster syncing will mean quicker starts? (less cranking needed? )

The changes I made are only for "twin trigger" ignition mode. Before the changes I could often lose sync on the bench and not regain it. RPM would drop to zero despite the tach signal looking fine. This change does not impact any other wheel modes.

James

Keithg · Post by **Keithg** » Sat Oct 20, 2007 6:49 pm

Would this affect me with a 36-1 crank wheel and a 1 per rev cam wheel? If so, I am anxious to try it out.

KeithG

On 10/20/07, jsmcortina > wrote:

Xtatic wrote: so faster syncing will mean quicker starts? (less cranking needed? )
The changes I made are only for "twin trigger" ignition mode. Before the changes I could often lose sync on the bench and not regain it. RPM would drop to zero despite the tach signal looking fine. This change does not impact any other wheel modes.

James

Post by **jsmcortina** » Sun Oct 21, 2007 3:53 am

Keithg wrote:Would this affect me with a 36-1 crank wheel and a 1 per rev cam wheel? If so, I am anxious to try it out.

You don't run "twin trigger" mode - this typically for bikes that have a single lobe on the crank and two VR sensors. It only works for 4cyl wasted spark.

However, I have changed the settings somewhat that will affect "trigger wheel" mode with the "dual wheel" setting. Since the last beta you need to specify how often the cam signal happens - your will be specified as cam.

James

UnaClocker · Post by **UnaClocker** » Sun Oct 21, 2007 6:16 pm

Beta14 works for me. You didn't break anything that I'm using.

(I'm not using IAC control anymore)

baneonrt · Post by **baneonrt** » Mon Oct 22, 2007 10:03 am

Updated last night. Working fine so far. At least it got me to work

Steve

Post by **muythaibxr** » Mon Oct 22, 2007 10:14 am

UnaClocker wrote:Beta14 works for me. You didn't break anything that I'm using. (I'm not using IAC control anymore)

Your IAC problems might have been settings related.

I was messing with the settings yesterday (finally got around to wiring a stepper up to my board), and I was noticing some interesting behavior depending on the "always-on" setting as well as some of the other settings.

Ken

UnaClocker · Post by **UnaClocker** » Mon Oct 22, 2007 3:50 pm

I think I was using the 15 minute setting, and the other settings I've played with in the past, I set them to the settings that worked best for me.

M52 POWER! · Post by **M52 POWER!** » Mon Oct 22, 2007 5:54 pm

So this new firmware allows my car to start and run for about 5 seconds. After that running conditions get progressively worse and worse. The car seems to start running leaner and leaner to the point it stalls out on its own. Backfires through intake, possibly it is timing that is causing this aswell. This happens within 30 seconds of starting. Didn't have time to datalog, the car is my DD and needed to get going.

Turning the car off and starting it again the cycle starts over. Runs for 5 seconds normally then goes downhill quickly... I reflashed to beta8 and all issues were resolved.

-Chris

Post by **muythaibxr** » Tue Oct 23, 2007 6:38 am

Did you ever post your msq?

It really sounds more like a fuel issue than anything else.

Ken

UnaClocker · Post by **UnaClocker** » Tue Oct 23, 2007 3:58 pm

A fuel issue that Beta 8 doesn't have?

Post by **muythaibxr** » Tue Oct 23, 2007 4:08 pm

A fuel issue that settings changed for, or possibly the one that I fixed recently which existed in beta 8 (I believe).

I'm saying basically a retune may be necessary.

Ken

hassmaschine · Post by **hassmaschine** » Tue Oct 23, 2007 4:20 pm

wasn't it beta 8 that had some sort of VE issue? I know I was running beta 6 and tried to upgrade to 8 or 9, but the AFR was way too far off to run the car at all. it was fixed with beta 10 or 11 I think. so if you tuned your car with that beta, you definitely have to retune it again.

M52 POWER! · Post by **M52 POWER!** » Tue Oct 23, 2007 4:24 pm

I doubt retune would help this. I flashed the beta 14 firmware and rebuilt my cars config exactly from scratch by going through every setting. The car ran great for 5 seconds and got progressively worse. No way this is a VE problem!

I'd LOVE to post datalogs and MSQ's although the site says I've exceeded the 1MB quota limit even though the MSQ is a mere 45 KB....

-Chris

Post by **muythaibxr** » Tue Oct 23, 2007 4:36 pm

Nothing you have said leads me to believe this is not a VE problem. In fact, there was a known problem in beta 8 that would almost definitely cause you to have to retune AND would probably cause the behavior you're seeing.

Basically, with certain configurations, your VE would've ended up being half what it should've been because of a bug. Now that the bug is fixed, you'll have to retune fuel. What you're probably seeing is that it starts, then runs while ASE is active, then as soon as ASE goes away, it stops running.

Ken

baneonrt · Post by **baneonrt** » Tue Oct 23, 2007 5:08 pm

Quick test should be to cut your Req Fuel constant in half.

Worked for me when going from an earlier version to Beta 8. Then I just put it back when another beta fixed it.

Steve

UnaClocker · Post by **UnaClocker** » Tue Oct 23, 2007 5:15 pm

So if you need to cut it in half to go TO Beta 8, wouldn't he be wanting to double his req fuel number? And messing with the req fuel in MS2E is going to screw with your cranking pulsewidths.. They are percentage based, off the Req Fuel number (a brilliant improvement, BTW..), so screwing with ReqFuel is going to screw with starting in general..

baneonrt · Post by **baneonrt** » Tue Oct 23, 2007 8:59 pm

UnaClocker wrote:So if you need to cut it in half to go TO Beta 8, wouldn't he be wanting to double his req fuel number? And messing with the req fuel in MS2E is going to screw with your cranking pulsewidths.. They are percentage based, off the Req Fuel number (a brilliant improvement, BTW..), so screwing with ReqFuel is going to screw with starting in general..

I think you're right

I was only suggesting it as a way to quickly test the problem. I know my car ran at least decent with that change.

Steve

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