Speed density dudes.
Thread Starter
Melting Slicks
Joined: Aug 2002
Posts: 3,295
Likes: 40
From: East Coast fl
Speed density dudes.
I haven't ran speed density since..well I had my 88 GT. 
That said,...in my 00 E85-TT C5...I have two wide bands I use, 1 per bank... I know the IAT setup....I know the map setup....but are you guys using the oem narrow band O2 sensors? I guess you would need two widebands to NOT but...admittedly, I am only guessing. I am not the tuner but my tuner is friggin awesome...so I will ask him but, before I do....just curious what the C5 crowd has already done, since I have been out of the game for probably 5 years or so.
On a side note, I forgot to weld in a bung for my IAT sensor(I was running a newer maf and repinned to run a maf back years ago) in my new intercooler piping.
Thanks for your insight.
That said,...in my 00 E85-TT C5...I have two wide bands I use, 1 per bank... I know the IAT setup....I know the map setup....but are you guys using the oem narrow band O2 sensors? I guess you would need two widebands to NOT but...admittedly, I am only guessing. I am not the tuner but my tuner is friggin awesome...so I will ask him but, before I do....just curious what the C5 crowd has already done, since I have been out of the game for probably 5 years or so.On a side note, I forgot to weld in a bung for my IAT sensor(I was running a newer maf and repinned to run a maf back years ago) in my new intercooler piping.
Thanks for your insight.
Thread Starter
Melting Slicks
Joined: Aug 2002
Posts: 3,295
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From: East Coast fl
Drifting
Joined: Nov 2007
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From: Concord NC
Like he mentioned above the factory narrowbands will help to make small fuel trim adjustments when the engine is running in closed loop. If the VE table (fuel map for SD tune) is tuned thoroughly then the engine will run just fine in open loop without 02's. I have left a few cars in open loop tunes simply because the car drove better in open loop. Since you have a wideband in the car to monitor afr ratio I don't see a problem with eliminating the factory 02's. Just have your tuner do a good street tune for all parts of the map and you should be g2g.
Safety Car
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From: St. Joseph MO
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Ive been OLSD with my Vette for almost a decade now. My turbo truck is CLSD, and both use EFILive COS5 tunes. Some widebands can supply the narrowband signal as well. So it really depends on what you have now and the capability of your tuner Jamie
Thread Starter
Melting Slicks
Joined: Aug 2002
Posts: 3,295
Likes: 40
From: East Coast fl
Like he mentioned above the factory narrowbands will help to make small fuel trim adjustments when the engine is running in closed loop. If the VE table (fuel map for SD tune) is tuned thoroughly then the engine will run just fine in open loop without 02's. I have left a few cars in open loop tunes simply because the car drove better in open loop. Since you have a wideband in the car to monitor afr ratio I don't see a problem with eliminating the factory 02's. Just have your tuner do a good street tune for all parts of the map and you should be g2g.
Thread Starter
Melting Slicks
Joined: Aug 2002
Posts: 3,295
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From: East Coast fl
Thanks fellas!!!
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Burning Brakes
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From: killeen TX
I'm curious why you say the narrow bands are useless with e85? Mine have been oscillating well and keeping it at Lambda 1.
ISIS SUCKS FAT CHOAD
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From: Earth, United States
Must be that special E85 oxygen.
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From: Forney Texas
Thread Starter
Melting Slicks
Joined: Aug 2002
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From: East Coast fl
I plugged the fronts in still(rears have been removed forever I think already) just cause I didn't want another unused harness, and I figure I could plug my DP holes anyways. I just moved my widebands a little closer to the turbos.
Safety Car
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From: Boise
You reply first...no you reply first....
Melting Slicks
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From: Okinawa
Tech Contributor
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From: Forney Texas
Wrong again, as always.
Not true, I was too busy facetiming your mom then.
Last edited by BLOWNBLUEZ06; Nov 1, 2015 at 05:36 PM.
ISIS SUCKS FAT CHOAD
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except someone else pointed your comment out to me, and I replied. I then tried to call Bret to see if he had seen it and his phone went straight to voice mail where I immediately received a text saying I'll call you back, face timing with someone real special. I never did figure out who or what was more important than my phone call until now!
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