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Info from Aem concerning Wideband and Leaded Race fuel

 
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Old 28 Dec 2016, 07:08 pm
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Default Info from Aem concerning Wideband and Leaded Race fuel

I share, because I care lol
Here is a reply from Aem technical support concerning using their EUGO Wideband sensor with leaded fuel

Please see the picture below for wideband sensor life information. Using a leaded race fuel can definitely reduce the life of the sensor.

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Old 28 Dec 2016, 09:50 pm
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Default Re: Info from Aem concerning Wideband and Leaded Race fuel

If you switch to a Bosch 4.2 from a VW, they cost half the price and can be found at local McParts stores with lifetime warranties. The connector is (identical but) smaller so that will need to be swapped out on the WB controller. I think you can do this with any WB that you can calibrate.Innovate, Glow shift, etc.
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Old 29 Dec 2016, 12:38 pm
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Default Re: Info from Aem concerning Wideband and Leaded Race fuel

Quote:
Originally Posted by rob302 View Post
If you switch to a Bosch 4.2 from a VW, they cost half the price and can be found at local McParts stores with lifetime warranties. The connector is (identical but) smaller so that will need to be swapped out on the WB controller. I think you can do this with any WB that you can calibrate.Innovate, Glow shift, etc.
Don't have a part number do you?! And is it just the plug swap?!
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THE UNDISPUTED KING OF THE PARKING LOT

Competition's paying the price.

03 PT GT. DSI canned tune, Weight redux, MH Racemaster Slicks/Rota Slipstream 15" 11.95 at 118.41mph 1/4 mile
96 SOHC Neon Turbo
08 CSRT4. Realtune MS1K v1 pcm stg0 NSRT4 Injectors.
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Old 29 Dec 2016, 12:58 pm
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Default Re: Info from Aem concerning Wideband and Leaded Race fuel

It is good info but....

If you race and use a high octane fuel containing lead than you really expect to be replacing a few sensors in a short period of time. And most leaded fuel suppliers will still caution or give warning to using lead fuels in a computer controlled engine.

But why would you need it anymore. As an example of a fuel I use Sunco offers high octane unleaded fuels for most requirements.

Remember you only need a fuel with an octane rating to reduce or prevent combustion from flashing and cause pre ignition,beyond that it is a waste of money.


I use Sunco, or Union 76 race fuels.
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Old 29 Dec 2016, 01:37 pm
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Default Re: Info from Aem concerning Wideband and Leaded Race fuel

Quote:
Originally Posted by SPLNeon View Post
Don't have a part number do you?! And is it just the plug swap?!

17205 has a 15" wire harness
17018 has a 17" wire harness

literally just a plug swap and then you recalibrate it.


the only difference is when you install a 4.2 sensor, you cannot zip tie the wiring. the tube around the wires is how the 4.2 sensor gets fresh air for it's reference. the 4.9 did away with that.

you can read about it here.
Bosch LSU 4.9 vs LSU 4.2 - efiHacks Wiki
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Old 29 Dec 2016, 02:46 pm
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Default Re: Info from Aem concerning Wideband and Leaded Race fuel

Thanks Rob for the info.
NitroPT, the leaded fuel was what I had available at the time for cheap. Ideally, I would like to use unleaded high octane fuel in the future 👍
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THE UNDISPUTED KING OF THE PARKING LOT

Competition's paying the price.

03 PT GT. DSI canned tune, Weight redux, MH Racemaster Slicks/Rota Slipstream 15" 11.95 at 118.41mph 1/4 mile
96 SOHC Neon Turbo
08 CSRT4. Realtune MS1K v1 pcm stg0 NSRT4 Injectors.
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Old 29 Dec 2016, 04:24 pm
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Default Re: Info from Aem concerning Wideband and Leaded Race fuel

point being, if you race- you should use the lowest octane possible. if you don't have compression in the 13.1+ range along with ignition and cam timing to make use of it, it will make less power. I see it every weekend at the track- because it says "race" and because they are at the track it's assumed that it makes a difference.
leaded has also caused problems with some metal platings in the engine (such as the stellite coatings on valves). I got really tired of flushing the system with pump gas at the track too- it eats up everything if it sits.
87 octane ignites easier than 91 but produces less btu's. 91 and up takes more compression to burn every last oxygen and fuel molecules but if the conditions are perfect it will produce more btu's. otherwise you are just pumping out unburnt fuel...
want more power down low and across the range? if the compression ratio and other components are stock try 87. then take the money you save and buy tires! it is common to mix low and high octane till the f/a ratio is perfect. now mr12 VP fuel or any brands equivalent is the exception... but 120$ for 5 gallons and 3/4hp?! wowsers...
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Old 29 Dec 2016, 06:08 pm
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Default Re: Info from Aem concerning Wideband and Leaded Race fuel

Quote:
Originally Posted by SPLNeon View Post
Thanks Rob for the info.
NitroPT, the leaded fuel was what I had available at the time for cheap. Ideally, I would like to use unleaded high octane fuel in the future ��
I figured it was something like that.


rambojoe dont forget that we always check the specif gravity of the fuel. On race days I try to get my fuel at the same place I filled up when I did my ECU calibrations for the file I use when I race. Also I have been known to call ahead and ask when thier last tanker serviced them so I know it will be fresh fuel from the "bull pen". (fuel distributor) It keeps my consistent anytime of the year within a tenths. Naturally after the first run I can compensate for any calibration adjustments needed needed but not the drive(me)!
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Last edited by NitroPT; 29 Dec 2016 at 06:14 pm.
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