Re: need advice for where to place WB Oxygen sensor
[Re: Bob_Spelic]
#213895
02/04/09 12:59 PM
02/04/09 12:59 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Couple questions Bob, is it on the digger you show and will you be leaving them in the pipes I dont like leaving them in
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Re: need advice for where to place WB Oxygen sensor
[Re: 440Jim]
#213899
02/05/09 01:20 AM
02/05/09 01:20 AM
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Joined: Apr 2005
Posts: 1,880 USA
Ron Silva
top fuel
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top fuel
Joined: Apr 2005
Posts: 1,880
USA
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I always run mine in the collector.
SRT DEMON ONE SEAT
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Re: need advice for where to place WB Oxygen sensor
[Re: Bob_Spelic]
#213901
02/05/09 10:02 AM
02/05/09 10:02 AM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Mr. P body, it will be in the dragster show. i will not leave them in I will remove the sensors after geting the tune up correct and put plugs in the bungs. I am trying E85 on the car and need to find the safe tune without hurting anything. The calculated compression is 13.7 so I do not really know if the e85 will work for me.
bob Spelic
Bob try to keep the bungs as far forward as possible but still in the path of all 4 tubes, like has been said already if you get near the collector exit it can pick up outside air. You could had a slip fit collector extension with the bung on the front of it(a collector that can tighten down) then when completed you take it off. I run 14.1:1 on E-85 but my cam has a 112 LSA installed at 106 or 108 I forget right now... runs good on it
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Re: need advice for where to place WB Oxygen sensor
[Re: Bob_Spelic]
#213903
02/05/09 10:44 AM
02/05/09 10:44 AM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
I am 13.6 with the ross big dome piston (14cc), EZ-1 heads at 75 CC and a .060 cometic gasket (to get the static compression down). My cam is 282/274 @ .050 on a 110 CL in at 108. I am very worried about beig able to run E85 and bought the LM-1 as I think I need all the help I can get in getting it set up.
The removable collector extension sounds like a good idea.
Bob Spelic
Bob I wouldnt worry with the 110 LSA, your 2* shorter and a 1/2 compression point less. The E-85 will run cooler so that less prone to detonation . If you go with the collector extension make sure its sealed so you dont pull in air at the joint and get a false reading
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Re: need advice for where to place WB Oxygen sensor
[Re: cudabunch]
#213904
02/05/09 01:32 PM
02/05/09 01:32 PM
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Joined: Mar 2008
Posts: 292 NY
challenger451ci
enthusiast
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enthusiast
Joined: Mar 2008
Posts: 292
NY
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Quote:
Disconnect E-vac if you have it for a run.
Does E-VAC effect the O2 reading? Would it effect if the O2 sensor bung was upstream from the E-VAC????
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Re: need advice for where to place WB Oxygen sensor
[Re: challenger451ci]
#213905
02/05/09 01:37 PM
02/05/09 01:37 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Quote:
Disconnect E-vac if you have it for a run.
Does E-VAC effect the O2 reading? Would it effect if the O2 sensor bung was upstream from the E-VAC????
Yes the evac will effect the reading... unless its up stream like you stated
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Re: need advice for where to place WB Oxygen sensor
[Re: Bob_Spelic]
#213906
02/06/09 11:27 AM
02/06/09 11:27 AM
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Joined: Jan 2003
Posts: 16,930 NC
440Jim
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,930
NC
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Quote:
I am 13.6 with the ross big dome piston (14cc), EZ-1 heads at 75 CC and a .060 cometic gasket (to get the static compression down). My cam is 282/274 @ .050 on a 110 CL in at 108.
My 511 CID has 13.5 CR, flat tops, 68cc, 0.039" quench. My cam is 279/287 at 0.050" on a 110 LC in at 106.
I ran E85 with 83-84% ethanol all last year in this setup with no problems. I would worry about winter/spring grade E85 (70-80 percent ethanol). I call the station and make sure the batch they have is a high percent ethanol, then fill a 55 gallon barrel.
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