O2 reading on alcohol with injection with wego lll in datamax dash

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September 04, 2018, 09:08 AM

td9757

O2 reading on alcohol with injection with wego lll in datamax dash

O2 reading on alcohol with injection with wego lll in datamax dash. Sensor in a dynatech header in the collector.

September 05, 2018, 01:34 PM

sr4440

not sure what your question is but I think you are asking for a O2 reading for methanol. I have found the "typical" NA methanol engine makes the best power around 5.3- 5.5.

Joe

Without data, you’re just another guy with an opinion.

September 05, 2018, 03:58 PM

wideopen231

Agree and lets just call it 5.4. I would target that and move little each way to see what car wants. I have found electric leanouts make getting it perfect(if that exist) is lot easier if using a 7 gpm pump like 80A od DSR I have on my car.

I don't have collector and reading one pipe on zoomies and adjust other cylinders to match.In theory collector should work great for average.

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September 05, 2018, 05:28 PM

td9757

Actually I'm using a blp belt drive pump . With the 500 gears. Have a electric bypass but not sure how it works or would hook up

Foxtrot Juliet Bravo

September 05, 2018, 09:25 PM

Curly1

I use the gas scale and I shoot for 12.9 to 13.1 wide open at finish line. It is fatter than that at the hit. Mine idles around 11.5 to 12 if I remember right. Enderle hat mechanical fuel injection on alcohol.

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September 06, 2018, 08:24 AM

Roger McGinnis

quote:
Originally posted by td9757:
Sensor in a dynatech header in the collector.

You'll probably never get an accurate reading in the collector.

September 06, 2018, 08:47 AM

Bucky

quote:
Originally posted by Roger McGinnis:
quote:
Originally posted by td9757:
Sensor in a dynatech header in the collector.

You'll probably never get an accurate reading in the collector.

Not at idle anyhow.

Foxtrot Juliet Bravo

September 06, 2018, 10:48 AM

SX 66

for my dragster I have the sensor 4 inches from the cylinder in the #6 pipe on full headers. I find that the best idle is about 10:1 on the gas scale (about 4.3 on alcohol scale) for the best 60 ft time. Leaner and it drops off on the 60 ft time. On the brake it goes to about 11:1 (4.8) and then at the finish line I have 12.5:1(5.5). this is with 34 nozzles and a 0.5 pump

Bob

September 07, 2018, 10:25 AM

Roger McGinnis

quote:
Originally posted by Bucky:
quote:
Originally posted by Roger McGinnis:
quote:
Originally posted by td9757:
Sensor in a dynatech header in the collector.

You'll probably never get an accurate reading in the collector.

Not at idle anyhow.

Or at wide open with any turbulence.

Not sure how to prevent turbulence without adding a tailpipe.

September 07, 2018, 10:48 AM

markemark

quote:
Originally posted by SX 66:
this is with 34 nozzles

Are these nozzles Enderle

September 07, 2018, 01:16 PM

SX 66

Yes, Enderle nozzles, 80a 0.5 pump, 100 bypass pill. It definitely leans out some on the brake, and I expected it to go rich. Covering it up with a very rich idle seems to keep 60 ft time more consistent