What I have been working on

[helosailor]

I should be available again on Saturday. Shoot me a text.

[KBScobravert]

Bought 20 gallons of E85 for $2.78 a gallon. Lower cost + the benifit of a cooler running motor and the option to run more timing/boost safely vs the difference in mpg with regular 93 ($3.80 today)

I was only able to get 15 gallons in the 18 gallon tank. The fact that it ran out of fuel tells me that there is a 3 gallon dead zone. I guess he did that to keep the pump and pickup submerged under accelleration/braking/turns for just shy of 15 gallons. Still better than a factory tank that holds 13.

Dash is coming out tomorrow and a new ground system getting put in. I want to be able to put it back in Saturday and start the car again on Monday. Getting closer.

[DON SVO]

Bought 20 gallons of E85 for $2.78 a gallon. Lower cost + the benifit of a cooler running motor and the option to run more timing/boost safely vs the difference in mpg with regular 93 ($3.80 today)

I was only able to get 15 gallons in the 18 gallon tank. The fact that it ran out of fuel tells me that there is a 3 gallon dead zone. I guess he did that to keep the pump and pickup submerged under accelleration/braking/turns for just shy of 15 gallons. Still better than a factory tank that holds 13.

Dash is coming out tomorrow and a new ground system getting put in. I want to be able to put it back in Saturday and start the car again on Monday. Getting closer.

don't forget that stoichiometric is not 14.7:1 on E85...

[CJ]

don't forget that stoichiometric is not 14.7:1 on E85...

I didn't realize it changed on E85! Makes sense though since it's considerably less efficient. I'm assuming it's lower (more fuel required).

[dville_gt]

I didn't realize it changed on E85! Makes sense though since it's considerably less efficient. I'm assuming it's lower (more fuel required).

ya, ~9.7:1 and most tune for around 7:1 WOT

[KBScobravert]

I didn't realize it changed on E85! Makes sense though since it's considerably less efficient. I'm assuming it's lower (more fuel required).

I can comment more on this and Don's post in a few. Don is right but tuning in air/fuel is still what matters. The ecu receives a 0-5v return reference. The change is made there. My gauge will still read like a regular gas motor would.

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[dville_gt]

I can comment more on this and Don's post in a few. Don is right but tuning in air/fuel is still what matters. The ecu receives a 0-5v return reference. The change is made there. My gauge will still read like a regular gas motor would.

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Err.. edit, just thought about it, so you are probably using an LC1 or other Innovate controller and left the output on gas, since it is a lambda sensor it converts a lambda = 1 to 14.7 even if the actual lambda reading is 9:1 (e85).

[CJ]

ya, ~9.7:1 and most tune for around 7:1 WOT

good god! LOL cheaper fuel my ass! I didn't realize it was that much different. I hope AEM has seat selectable programs.

Keith, hadn't said this yet but I'm glad you have that car cooperating with you. I'm not easily impressed with projects, but this is one that deserves mad respect. It's nice to see you're going to finish it, 90% of these projects never get finished.

[KBScobravert]

Err.. edit, just thought about it, so you are probably using an LC1 or other Innovate controller and left the output on gas, since it is a lambda sensor it converts a lambda = 1 to 14.7 even if the actual lambda reading is 9:1 (e85).

No. It is an AEM gauge and EUGO. I need to find Kurgan's email that explained it to me.

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[KBScobravert]

good god! LOL cheaper fuel my ass! I didn't realize it was that much different. I hope AEM has seat selectable programs.

Keith, hadn't said this yet but I'm glad you have that car cooperating with you. I'm not easily impressed with projects, but this is one that deserves mad respect. It's nice to see you're going to finish it, 90% of these projects never get finished.

Thanks CJ. Yes from the seat I can make tuning changes, log, or upload a new tune to the ecm via my laptop.

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[CJ]

Thanks CJ. Yes from the seat I can make tuning changes, log, or upload a new tune to the ecm via my laptop.

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Are you going to integrate a laptop?

[dville_gt]

No. It is an AEM gauge and EUGO. I need to find Kurgan's email that explained it to me.

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It's just using lambda = 14.7 vs. = 9 when it is displaying AFR. Lambda doesn't care what fuel you are running, stoich (regardless of fuel) is lambda = 1

[KBScobravert]

Quoted from Bob Kurgan of Kurgan Motorsports.
"......most widebands display a/f in gasoline (as does the AEM)... so, you are still shooting for the same 14.64 stoich, 11.5 WOT (at the gauge) etc..

just because stoich of e85 is 9.85, it still displayed on a normal wideband as 14.64"

From AEM's website for the gauge
•0-5v analog output included for use with data loggers and virtually any engine management system
•0-5v analog output Gasoline values from 10 to 20:1 AFR
•0-5v analog output E85 values from 6.6 to 13.2 AFR
•0-5v analog output Ethanol values from 6.14 to 12.3:1 AFR
•0-5v analog output Methanol values from 4.4 to 8.8:1 AFR
•0-5v analog output Lambda values from .68 to 1.36:1

Below is a list of AFR values that should be entered into the 02 Sensor #1(#2) Cal Table if inputting the analog signal to an AEM EMS. These calibration table(s) are found in the AEMPro software: Setup | Sensors | Oxygen Sensor | Oxygen Sensor #1(#2)
When connecting to AEM’s EMS, make sure to verify that the O2 #1 Gain option is set so the voltage from the O2 #1 Volts parameter matches the voltage input at the EMS from the O2 sensor. An easy way to do this is to disconnect the UEGO sensor from the UEGO gauge. When in this state, the UEGO gauge will output 2.35 volts. You can then adjust the O2 #1 Gain until the O2 #1 Volts display in AEMPro reads 2.35 volts.

02 Volts - Gasoline AFR - Methanol AFR - Propane AFR - Ethanol AFR - CNG AFR
0.00 - 10.00 - 4.42 - 10.72 - 6.14 - 9.90
0.16 - 10.32 - 4.56 - 11.06 - 6.34 - 10.21
0.31 - 10.62 - 4.69 - 11.38 - 6.52 - 10.51
0.47 - 10.94 - 4.83 - 11.72 - 6.72 - 10.83
0.62 - 11.24 - 4.96 - 12.05 - 6.91 - 11.12
0.78 - 11.56 - 5.11 - 12.39 - 7.10 - 11.44
0.94 - 11.88 - 5.25 - 12.73 - 7.30 - 11.76
1.09 - 12.18 - 5.38 - 13.05 - 7.48 - 12.06
1.25 - 12.50 - 5.52 - 13.40 - 7.68 - 12.37
1.40 - 12.80 - 5.65 - 13.72 - 7.86 - 12.67
1.56 - 13.12 - 5.79 - 14.06 - 8.06 - 12.99
1.72 - 13.44 - 5.94 - 14.40 - 8.26 - 13.30
1.87 - 13.74 - 6.07 - 14.72 - 8.44 - 13.60
2.03 - 14.06 - 6.21 - 15.07 - 8.64 - 13.92
2.18 - 14.36 - 6.34 - 15.39 - 8.82 - 14.21
2.34 - 14.68 - 6.48 - 15.73 - 9.02 - 14.53
2.50 - 15.00 - 6.62 - 16.08 - 9.22 - 14.85
2.65 - 15.30 - 6.76 - 16.40 - 9.40 - 15.14
2.81 - 15.62 - 6.90 - 16.74 - 9.60 - 15.46
2.96 - 15.92 - 7.03 - 17.06 - 9.78 - 15.76
3.12 - 16.24 - 7.17 - 17.40 - 9.98 - 16.07
3.27 - 16.54 - 7.30 - 17.73 - 10.16 - 16.37
3.43 - 16.86 - 7.45 - 18.07 - 10.36 - 16.69
3.59 - 17.18 - 7.59 - 18.41 - 10.55 - 17.00
3.74 - 17.48 - 7.72 - 18.73 - 10.74 - 17.30
3.90 - 17.80 - 7.86 - 19.08 - 10.94 - 17.62
4.05 - 18.10 - 7.99 - 19.40 - 11.12 - 17.91
4.21 - 18.42 - 8.13 - 19.74 - 11.32 - 18.23
4.37 - 18.74 - 8.28 - 20.08 - 11.51 - 18.55
4.52 - 19.04 - 8.41 - 20.40 - 11.70 - 18.85
4.68 - 19.36 - 8.55 - 20.75 - 11.89 - 19.16
4.83 - 19.66 - 8.68 - 21.07 - 12.08 - 19.46
4.99 - 19.98 - 8.82 - 21.41 - 12.27 - 19.78
Mind you that those are ETHANOL numbers and I am on E85 but they are close. I am working to get that table from AEM

When I had it running it was reading 10.0 on the gauge or 0.0v at the signal output which feeds the a/f to the ECM. This was in part to the computer holding the injectors open longer than needed to compensate for a missing signal. My a/f signal output was in the pin next to the right one. Therefore the computer had no idea how much fuel it was/wasn't burning.

That issue is fixed; unpinned from 43 and moved to 44. Simple, now the computer will get the right signal and the A/F will be an accurate representation.

[KBScobravert]

Pics since this is a picture thread ......and I am still learning how this phone works.

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[KBScobravert]

Dieselsmoke came over this morning and helped me pull the dash.

I have to completely rethink my grounds for the added in gauges, cold, MAP, can / crank sensor and the ECU.

The injector driver now runs on a relay actuated by the same 12v that operates the coils and cam / crank sensor. Now if doesn't work nothing will.

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