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Medusa Megasquirt.... help lol

  • Thread starter Thread starter Wilky-Medusa 2.0
  • Start date Start date Jun 16, 2019
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a91what

SendMeUrDataLog
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Jul 13, 2019
#101
  • Jul 13, 2019
  • #101
Sorry I am going to take a look a bit later just busy at the moment
 
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Wilky-Medusa 2.0

Member
Jun 15, 2019
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4
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lake george, ny
Jul 14, 2019
#102
  • Jul 14, 2019
  • #102
Wilky-Medusa 2.0 said:
this saturday log i made a little changes in driveway havnt driven yet since just wanted to upload it... log started on the orig tune in previous upload
Click to expand...
took it for a ride made some changes runns decent on cruise deff needs more rpm on idle hit it and runs like dog ,,, lol the egt are 700 degree on cruiser no good...
 

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  • jimsuday.zip
    jimsuday.zip
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  • took a chance.msq
    took a chance.msq
    117.1 KB · Views: 152

a91what

SendMeUrDataLog
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Jul 14, 2019
#103
  • Jul 14, 2019
  • #103
This should be much closer.
 

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  • Medusa REV.2.0.2.msq
    Medusa REV.2.0.2.msq
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Reactions: Wilky-Medusa 2.0

Wilky-Medusa 2.0

Member
Jun 15, 2019
64
4
18
lake george, ny
Jul 14, 2019
#104
  • Jul 14, 2019
  • #104
a91what said:
This should be much closer.
Click to expand...
car ran good on cruise ... could not lean into throttle ,, got pulled over and then restarted for short log tried to hit it backfired n then let off lol was told to stay off the road with this car lol
 

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  • hottune.msl
    hottune.msl
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  • 2ndhalfsunday.zip
    2ndhalfsunday.zip
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a91what

SendMeUrDataLog
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Jul 15, 2019
#105
  • Jul 15, 2019
  • #105
Looks like there are some delay issues with the WB likely why you have issues with auto tune.
 

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  • Medusa REV.2.0.4.msq
    Medusa REV.2.0.4.msq
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Wilky-Medusa 2.0

Member
Jun 15, 2019
64
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lake george, ny
Jul 15, 2019
#106
  • Jul 15, 2019
  • #106
i wonder if its from laptop freezing up ,,,, it does that i noticed. ,,, i made a little change and it deff ran better it started to warm up outside i noticed the afr dropping and hearing that lean pop.. i noticed where it was popping so i added 1 point... still very phat going into boost. i brought it home made a slight change in idle area runs good .... i have not driven since i made the little changes from a moment ago again very phat going into boost lol 10.0....Wilky
 

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  • mondaym.zip
    mondaym.zip
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  • medusa hot...2.0.msq
    medusa hot...2.0.msq
    117.1 KB · Views: 215

Wilky-Medusa 2.0

Member
Jun 15, 2019
64
4
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lake george, ny
Jul 15, 2019
#107
  • Jul 15, 2019
  • #107
a91what said:
Looks like there are some delay issues with the WB likely why you have issues with auto tune.
Click to expand...
i should have hit respond oops i loaded another log n the changes
 

Wilky-Medusa 2.0

Member
Jun 15, 2019
64
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lake george, ny
Jul 19, 2019
#108
  • Jul 19, 2019
  • #108
a91what said:
Looks like there are some delay issues with the WB likely why you have issues with auto tune.
Click to expand...
Was this a different tune to try? I didn't notice until now
 

a91what

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Jul 19, 2019
#109
  • Jul 19, 2019
  • #109
I wrote that tune before we had our phone conversation. I have not looked at the datalogs you posted afterwards. been busy
 

Wilky-Medusa 2.0

Member
Jun 15, 2019
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lake george, ny
Jul 19, 2019
#110
  • Jul 19, 2019
  • #110
a91what said:
I wrote that tune before we had our phone conversation. I have not looked at the datalogs you posted afterwards. been busy
Click to expand...
ok no prob,,, i was just checking lol,,,
 

Wilky-Medusa 2.0

Member
Jun 15, 2019
64
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lake george, ny
Jul 19, 2019
#111
  • Jul 19, 2019
  • #111
ran like asssssss was lean popping n the iac is acting up im going to take it off its the second one,,,, giving up for a little bit cars pissing me off... i posted 2 logs 1 is short the other one is long and had some issues the pump fuse blew... fixed it then continued on,, was running phat then lean and was a dog under boost....the tune i loaded is what its currently running on ,,,
 

Attachments

  • ran like :poo:.zip
    ran like :poo:.zip
    539.8 KB · Views: 229
  • long ride lean poping junk.zip
    long ride lean poping junk.zip
    778.4 KB · Views: 192
  • ran decent tune.msq
    ran decent tune.msq
    117.1 KB · Views: 251

Wilky-Medusa 2.0

Member
Jun 15, 2019
64
4
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lake george, ny
Aug 17, 2019
#112
  • Aug 17, 2019
  • #112
Update my ms is failing me.... first off how does a timing pull to 0 if it's never set or been locked to 0 anywhere. Reverse timing ...I've never seen before . Bug in the system or software bug.
 

a91what

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Aug 17, 2019
#113
  • Aug 17, 2019
  • #113
do you have a log file of this happening?? if you are hitting the rev limiter it may cut spark, its all in how YOU have the tune setup.
 

Wilky-Medusa 2.0

Member
Jun 15, 2019
64
4
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lake george, ny
Aug 17, 2019
#114
  • Aug 17, 2019
  • #114
a91what said:
do you have a log file of this happening?? if you are hitting the rev limiter it may cut spark, its all in how YOU have the tune setup.
Click to expand...
I do not have a log of this happening. It took 3 guys to find out that the timing is all over the plsce. I set timing at 10 degrees on balancer. Matches comp on pc. Rev it to 3g timing goes to 40 on pc and 28 at balancer bring into 7-9 psi timing on balancer goes to 0 and reads 18 on pc . The only time the timing matches is on idle. The rev limiter is set 6500 kpa set at 250 .
 

a91what

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Aug 17, 2019
#115
  • Aug 17, 2019
  • #115
ok so the timing is retarding with load, have you set the latency? this is one of the first steps that must be done so you do not have timing retard with increasing RPM. Its one of the things covered in the big ass tuning manual most people dont read, but its an easy fix.


The entry that says Spark Hardware Latency... start with a value of 200 and have someone strobe while you increase the RPM to see if the timing still retards. adjust the value as needed. [ I have gone as high as 1200]

EDIT: I just realized i sound like a ******* this morning, not my intent sorry
 

Wilky-Medusa 2.0

Member
Jun 15, 2019
64
4
18
lake george, ny
Aug 17, 2019
#116
  • Aug 17, 2019
  • #116
Wilky-Medusa 2.0 said:
I do not have a log of this happening. It took 3 guys to find out that the timing is all over the plsce. I set timing at 10 degrees on balancer. Matches comp on pc. Rev it to 3g timing goes to 40 on pc and 28 at balancer bring into 7-9 psi timing on balancer goes to 0 and reads 18 on pc . The only time the timing matches is on idle. The rev limiter is set 6500 kpa set at 250 .
Click to expand...
I had gotten pulled over trying to drive it and figure out what was happening. Was told to keep off the streets so
a91what said:
ok so the timing is retarding with load, have you set the latency? this is one of the first steps that must be done so you do not have timing retard with increasing RPM. Its one of the things covered in the big ass tuning manual most people dont read, but its an easy fix.


The entry that says Spark Hardware Latency... start with a value of 200 and have someone strobe while you increase the RPM to see if the timing still retards. adjust the value as needed. [ I have gone as high as 1200]

EDIT: I just realized i sound like a ******* this morning, not my intent sorry
Click to expand...
OK I checked my settings. This would also show pc at 40 degrees and wheel 28 degree. I'm just trying to get a grip why comp would not say what balancer does if it matched at idle. Timing does change before it goes under load
 

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  • 20190817_085033.webp
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a91what

SendMeUrDataLog
10 Year Member
Apr 6, 2011
10,739
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214
Hillsborough county
Aug 17, 2019
#117
  • Aug 17, 2019
  • #117
Follow my instructions above, it is covered when you highlight latency. The system designers assume you would read the manual... or find an issue like you have and ask the question, now that you know what the car is doing and i have given you a solution the only thing left to do is fix it.
 

Blucifer99

I only understand every 3rd word
Jul 15, 2018
466
31
38
Port Mcnicoll Ontario
Aug 18, 2019
#118
  • Aug 18, 2019
  • #118
Id like to kno exactly what giant maunal that they explain spark hardware latency settings due to retarding timing.. Cause im lookin thru the tonnes of manuals and info i have on ms and i cant seem to find this information.. Also this is the first time ive heard that one of the first things you set up is spark hardware latency settings due to the megasquirt retarding timing that much.. If this info is so plentiful then how is it ive never read it or been told it.. The pic is the only info that i can find and its far from detailed..
 

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  • 20190819_004204.webp
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Last edited: Aug 18, 2019

a91what

SendMeUrDataLog
10 Year Member
Apr 6, 2011
10,739
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Hillsborough county
Aug 19, 2019
#119
  • Aug 19, 2019
  • #119
It is in the manual, and its description is short and concise just like the info note its given in the ignitions settings menu.
If you notice the timing wander or retard with increasing rpm then you have one of two things happening, the latency needs to be increased or you have a mechanical problem.
The manuals would be 10000 pages if everything had lengthy explanations.

Bottom line is it's there to deal with the issue at hand, or the setup is mechanically to blame. To make this clear it's not a problem with the Ms, latency is the time it takes for a command given to be recieved. It's like a delay some systems have more than others.

What does the ignition system consist of?
 
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