Alcohol and O2's

b4black · 05-26-2004, 10:48 PM

If I'm running alcohol injection, how does this effect tuning by O2's. I recently found out I was runnig way lean, but becuase of the alcohol, I didn't have any knock. Richening up the mixture help ET's big time.

If I were to get a wide band O2 sensor, would I tune the same if I didn't have alcohol?

stevemon · 05-27-2004, 06:39 AM

I haven't seen any difference in O-2s but then I'm only using a 40% mix of alcohol. Also think an EGT would be all you need to tune the car properly.

Razor · 05-27-2004, 12:11 PM

Running higher boost and leaving the FP where it was set at when at lower boost will cuase the car to run leaner. My EGT's track my O2's as when I didnt run alky.

800's = high 1400-low 1500's.. 750's= 1600's 700's= 1700's.

Some cars you lean them out and dont make power, others you throw more fuel and they wake up.. depends.. temperature, boost, timing, etc.. Lots of variables to play with.

BTW.. Steve where have ya been

05-26-2004, 10:48 PM	#1 (permalink)
b4black Carb/Turbo Join Date: Sep 2000 Location: Chicagoland, IL Posts: 1,581	Alcohol and O2's If I'm running alcohol injection, how does this effect tuning by O2's. I recently found out I was runnig way lean, but becuase of the alcohol, I didn't have any knock. Richening up the mixture help ET's big time. If I were to get a wide band O2 sensor, would I tune the same if I didn't have alcohol? __________________ Rich George BEFORE BLACK Website 1983 Regal T TYPE 14.21 @ 93.75 mph - Have I caught the IC cars yet??? 1982 Regal GRAND NATIONAL 1998 Regal GS and 1996 Dodge Ram TurboDiesel too! Chicagoland Chapter GSCA

05-27-2004, 06:39 AM	#2 (permalink)
stevemon Free Information Kits Join Date: Sep 2000 Location: Jamaica Pass, Ok Posts: 3,906	I haven't seen any difference in O-2s but then I'm only using a 40% mix of alcohol. Also think an EGT would be all you need to tune the car properly. __________________ stevemonroe@cox.net 1986 GN, 11.80 @ 114, stock turbo. Now in my God sons care. 1989 TTA #10, Sold 1967 Buick Spl. GS Clone, Sold 1957 Buick Special 2nd new Buick in the family (sold) 1950 Special. Families 1st new Buick. Got the Bling Grill 2006 Sissy Motorscooter DIY Alcohol Injection 62 mm Throttle Bodys Liberalism faltered when it turned out it could not cope with truth. D. Moynihan Some in my party threaten to send a message that they don't know a just war when they see it, and more broadly that they're not prepared to use our military strength to protect our security and the cause of freedom. Joe Lieberman Somehow liberals have been unable to acquire from life what conservatives seem to be endowed with at birth: namely, a healthy skepticism of the powers of government agencies to do good. Daniel Moynihan When we are planning for posterity, we ought to remember that virtue is not hereditary. T. Paine

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05-27-2004, 12:11 PM	#3 (permalink)
Razor Registered User Join Date: Jul 2003 Location: Tampa, Florida Posts: 883	Running higher boost and leaving the FP where it was set at when at lower boost will cuase the car to run leaner. My EGT's track my O2's as when I didnt run alky. 800's = high 1400-low 1500's.. 750's= 1600's 700's= 1700's. Some cars you lean them out and dont make power, others you throw more fuel and they wake up.. depends.. temperature, boost, timing, etc.. Lots of variables to play with. BTW.. Steve where have ya been