Running Lean on E85 Tune

[SloppyTX]

Tuner is telling me that my car is running lean on E85 due to the Granatelli Ignition Coils that I installed on my car and that I should go back to stock. I find it hard to believe. Someone please enlighten me.

Car description below.

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[Zrussian13]

Swap them back to stock and see if they are right. Plenty of people making huge power with stock coils so you probably wasted your money on them anyway.

 

[Jackson1320]

if that's true then he can add more fuel and make more power

 

[Ransom]

Have you tested ethanol content?

 

[PC_GUARD]

Fuel delivery issue, imo. Pump, injectors, exhaust issue<<<>maybe.

My instincts say fuel delivery issue

 

[SloppyTX]

Fuel delivery issue, imo. Pump, injectors, exhaust issue<<<>maybe.

My instincts say fuel delivery issue

The fuel tested 85 on the mark

Have you tested ethanol content?

The fuel tested 85 on the mark

if that's true then he can add more fuel and make more power

Granateli has dyno results of iirc 18hp and 22 ftpds on a stock motor and 30+ hp on a SC.

 

[PC_GUARD]

The fuel tested 85 on the mark



The fuel tested 85 on the mark



Granateli has dyno results of iirc 18hp and 22 ftpds on a stock motor and 30+ hp on a SC.

Fuel delivery issue aka fuel pump, fuel rail, injectors, tune. Not in any particular order.

 

[Ransom]

I would be pissed if i was having fuel delivery issues on a 22 mach 1.

How lean is lean?

 

[Jhonda]

I would do with the tuner suggest, they’ve been doing it for a long time and it’s not that hard to change coil pack

 

[Zrussian13]

Gotta love it when they claim it adds "up to" 13hp.

 

[SloppyTX]

Update:

I was told that the A/F lean condition was not that bad enough to be concerned.

The coils are definitely noticeable around town and midrange passing on the highway.

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