Base Tune Review

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Base Tune Review

Unread postby Someone82 » Sun Sep 15, 2019 8:42 pm

Trying to get a base Tune started for my 93 Cobra which I have recently Supercharged with a Vortech V3 unit and I want to eliminate the FMU all together.

Started with the A9L2 Base, punched in my injector and MAF information and divided Load Scaling by 1.5

Running extremely Rich (have to start by holding throttle WOT), once running AFR is 13-12:1, will not go closed loop. because of this we have not moved passed startup tune.
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Someone82
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Name: Matt Williams
Vehicle Information: 1993 Mustang Cobra
Vortech non intercooler V3, 6lb kit
moates qh, wbo2-C, prosport

Re: Base Tune Review

Unread postby decipha » Sun Sep 15, 2019 9:47 pm

i deleted your vehicle info since you had personal info in there

you clipped your maf to 980 ad counts thats not good you should always take it to 1024 ad counts

i have no idea what you were trying to do with the dashpot decay but thats surely not helping

the bottom of fn035 must stay at 2.00 load

your cranking pw was significantly high. I lowered your cranking pw to help her fire off without having to do flood clear mode == pedal at wot

you had the top cell of the injector offset at 0, i see you interpolated 9 volts ... very good job

your making dialing in the maf significantly harder by using those in between maf points.. i simplified it to round numbers that match the histogram to make it simple

what load scaling are you referring to? your sarchg is still set for a 302 and you have your actual maf and injector data in so your tune is not scaled. I see you cut fn035 back which is just wrong.

you didn't add any timing to the spark table for your gt40 heads. I added 5 degrees across the board.

you'll see some background changed I made to bring you up to date to the latest a9l2 which hasn't been posted yet.


200 0
190 -10
175 -12

from 174 to 189 the hegos didn't switch since it was still trying to ramp back lean when you stabbed the throttle again so it failed the hegos since it exceeded byples and went in to open loop. I kicked up byples to 60 (same as stock) since your o2s seem to be working perfectly.

The reason why it did that is because you cut fn035 down when you shouldn't have and you also shouldn't be snapping the throttle like that either until you get the fuel dialed in.

you were idling near 170 maf counts so i reduced it there 12%.

at warm stable idle ipsibr is at .300 adding 300% more air to maintain idle than it should. You need to open the throttle stop by about 1/2 of a full turn to give it more air to idle correctly.

Otherwise she looks excellent. This should help you out.

All you have to do is dial in the maf, fn035, the isc multiplier table and then dashpot in that order and you should be golden.
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decipha
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Re: Base Tune Review

Unread postby Someone82 » Wed Sep 18, 2019 9:33 pm

Great, thank you as of now starts and idles better then OEM, will start dialing her in this weekend!

Here is the new datalog.
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Someone82
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Name: Matt Williams
Vehicle Information: 1993 Mustang Cobra
Vortech non intercooler V3, 6lb kit
moates qh, wbo2-C, prosport

Re: Base Tune Review

Unread postby decipha » Wed Sep 18, 2019 10:40 pm

still not enough ipsibr was red at .1 before the end of the log. You need to open up the throttle stop more still.
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decipha
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Posts: 19119
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Location: New Orleans, LA
Name: Michael Decipha Ponto
Vehicle Information: Supercoupin' x10
90 (4x 5spds) - Dante, Ruby, Daja, Ava
91 4r70w - Skarlett
92 (2x) 5spd & auto - Bianqa, Andrea
93 auto - Danika
94 5spd Rionda
95 auto Aisha
Vehicle 2 Information: Others:
00 Lincoln LS - Luanda
98 Camaro SS - Bounquisha
02 Harley F-150 - Sasasha
03 Marauder - DyShyKy
00 Explorer 5L - Bernyce
07 GMC 2500HD 6L - Veranafer
06 Chrysler 300 AWD

Re: Base Tune Review

Unread postby Someone82 » Thu Sep 19, 2019 8:24 am

I didnt notice that, thanks, do I want to aim for .00?
Someone82
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Posts: 39
Joined: Wed Aug 21, 2019 12:32 pm
Name: Matt Williams
Vehicle Information: 1993 Mustang Cobra
Vortech non intercooler V3, 6lb kit
moates qh, wbo2-C, prosport

Re: Base Tune Review

Unread postby decipha » Thu Sep 19, 2019 1:42 pm

yes ideally you want a 0% correction but if its just over < 0.05 thats fine
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decipha
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Posts: 19119
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Location: New Orleans, LA
Name: Michael Decipha Ponto
Vehicle Information: Supercoupin' x10
90 (4x 5spds) - Dante, Ruby, Daja, Ava
91 4r70w - Skarlett
92 (2x) 5spd & auto - Bianqa, Andrea
93 auto - Danika
94 5spd Rionda
95 auto Aisha
Vehicle 2 Information: Others:
00 Lincoln LS - Luanda
98 Camaro SS - Bounquisha
02 Harley F-150 - Sasasha
03 Marauder - DyShyKy
00 Explorer 5L - Bernyce
07 GMC 2500HD 6L - Veranafer
06 Chrysler 300 AWD

Re: Base Tune Review

Unread postby Someone82 » Sun Sep 22, 2019 6:28 pm

For future Reference, I will be having to pass smog, I know the EGR comes automatically disabled in A9L2, is there anything else I need to re-enable for smog?

Will the EGR affect the tune much when enabled?
Someone82
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Posts: 39
Joined: Wed Aug 21, 2019 12:32 pm
Name: Matt Williams
Vehicle Information: 1993 Mustang Cobra
Vortech non intercooler V3, 6lb kit
moates qh, wbo2-C, prosport

Re: Base Tune Review

Unread postby decipha » Sun Sep 22, 2019 6:31 pm

nope

nope
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decipha
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Posts: 19119
Joined: Mon Jul 15, 2013 5:29 pm
Location: New Orleans, LA
Name: Michael Decipha Ponto
Vehicle Information: Supercoupin' x10
90 (4x 5spds) - Dante, Ruby, Daja, Ava
91 4r70w - Skarlett
92 (2x) 5spd & auto - Bianqa, Andrea
93 auto - Danika
94 5spd Rionda
95 auto Aisha
Vehicle 2 Information: Others:
00 Lincoln LS - Luanda
98 Camaro SS - Bounquisha
02 Harley F-150 - Sasasha
03 Marauder - DyShyKy
00 Explorer 5L - Bernyce
07 GMC 2500HD 6L - Veranafer
06 Chrysler 300 AWD

Re: Base Tune Review

Unread postby Someone82 » Sun Sep 22, 2019 6:42 pm

Love it! To confirm, from what I'm seeing from your ADX file, the wide band values that you have entered are already set for Pin 27, correct?
Someone82
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Posts: 39
Joined: Wed Aug 21, 2019 12:32 pm
Name: Matt Williams
Vehicle Information: 1993 Mustang Cobra
Vortech non intercooler V3, 6lb kit
moates qh, wbo2-C, prosport

Re: Base Tune Review

Unread postby decipha » Sun Sep 22, 2019 6:54 pm

yea tunerpro is ready to go rifht out of the gate no user setup required

simply right click on the wideband on the dash and select your from the list

http://www.efidynotuning.com/config.htm
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decipha
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Posts: 19119
Joined: Mon Jul 15, 2013 5:29 pm
Location: New Orleans, LA
Name: Michael Decipha Ponto
Vehicle Information: Supercoupin' x10
90 (4x 5spds) - Dante, Ruby, Daja, Ava
91 4r70w - Skarlett
92 (2x) 5spd & auto - Bianqa, Andrea
93 auto - Danika
94 5spd Rionda
95 auto Aisha
Vehicle 2 Information: Others:
00 Lincoln LS - Luanda
98 Camaro SS - Bounquisha
02 Harley F-150 - Sasasha
03 Marauder - DyShyKy
00 Explorer 5L - Bernyce
07 GMC 2500HD 6L - Veranafer
06 Chrysler 300 AWD

Re: Base Tune Review

Unread postby Someone82 » Sun Oct 06, 2019 2:20 pm

Moving along slowly, but I feel I'm making progress (life vs toys :) ). I have idle and drive-ablity at a happy medium currently, Dashpot still needs work but it's livable for now.

Being boosted I feel like I might be doing something backwards, when I have throttle tip in I'm leaning out on lambda and I did the 1/2 throttle pull today and the car stayed right at Stoic practically. I didn't hear any detonation as I have pulled a degree of timing.

Could you take a look at these logs? drive100619 is a short drive i did to my house and the other is my 1/2 throttle pull.
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Someone82
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Posts: 39
Joined: Wed Aug 21, 2019 12:32 pm
Name: Matt Williams
Vehicle Information: 1993 Mustang Cobra
Vortech non intercooler V3, 6lb kit
moates qh, wbo2-C, prosport

Re: Base Tune Review

Unread postby Someone82 » Sun Oct 06, 2019 6:30 pm

Well shoot... something just dawned on me. I have an adjustable fuel pressure regulator (I know I know), I just set it to 55 psi as you state and now I'm going to re run my load scaling and MAF Transfer numbers.

Idles much better now :)
Someone82
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Posts: 39
Joined: Wed Aug 21, 2019 12:32 pm
Name: Matt Williams
Vehicle Information: 1993 Mustang Cobra
Vortech non intercooler V3, 6lb kit
moates qh, wbo2-C, prosport

Re: Base Tune Review

Unread postby decipha » Sun Oct 06, 2019 6:37 pm

fuel pressure doesn't change the maf just the injector data
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decipha
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Posts: 19119
Joined: Mon Jul 15, 2013 5:29 pm
Location: New Orleans, LA
Name: Michael Decipha Ponto
Vehicle Information: Supercoupin' x10
90 (4x 5spds) - Dante, Ruby, Daja, Ava
91 4r70w - Skarlett
92 (2x) 5spd & auto - Bianqa, Andrea
93 auto - Danika
94 5spd Rionda
95 auto Aisha
Vehicle 2 Information: Others:
00 Lincoln LS - Luanda
98 Camaro SS - Bounquisha
02 Harley F-150 - Sasasha
03 Marauder - DyShyKy
00 Explorer 5L - Bernyce
07 GMC 2500HD 6L - Veranafer
06 Chrysler 300 AWD

Re: Base Tune Review

Unread postby Someone82 » Sun Oct 06, 2019 6:55 pm

SO then I should leave the load scaling and MAF transfer alone? I feel like I'm completely starting over now. I just perload histogram and now have a multiplier of .85+/- across the board.
Someone82
Premium Member
 
Posts: 39
Joined: Wed Aug 21, 2019 12:32 pm
Name: Matt Williams
Vehicle Information: 1993 Mustang Cobra
Vortech non intercooler V3, 6lb kit
moates qh, wbo2-C, prosport

Re: Base Tune Review

Unread postby dleach1407 » Sun Oct 06, 2019 8:00 pm

Yes. The maf transfer tells the computer how much air is going into the engine, it is not affected by injector changes. The High/Low/breakpoint are the variables used for fuel injectors you need to change. If you increase your fuel pressure, your injector slopes and breakpoint all need to be multiplied by the percentage of change. If you went from 39 to 55 you would multiply all of those variables by 1.16 Since 55-39 is roughly 16psi. You can approximate 1% per 1 psi increase.
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