Pre and Post Crawford Plenum Dynos
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Re: Pre and Post Crawford Plenum Dynos
Q-
1. Where is the "first precat"?
2. Also, if I wanted an accurate A/F measurement could I place the O2 sensor (from a Mustang Dyno with eddy brake current) at the "first precat" location and receive believeable A/F results?
3. IF the results came back that I was running lean could I add the TS ECU and then re-dyno and attempt to "fix" the lean condition? I think this is an easy question...
4. IF the TS ECU appeared to "fix" the lean condition and give me, once again, acceptable a/f ratios, and my horsepower had increased, say 30 bhp over stock, would it be safe to say that my engine would be in good a good operating range or are there other factors that I'd be not figuring into the equation like air inlet temp, etc...?
<font color=blue>The above statements are only my take on the issue. If you disagree with anything I typed then you are 100% right!</font color=blue>
1. Where is the "first precat"?
2. Also, if I wanted an accurate A/F measurement could I place the O2 sensor (from a Mustang Dyno with eddy brake current) at the "first precat" location and receive believeable A/F results?
3. IF the results came back that I was running lean could I add the TS ECU and then re-dyno and attempt to "fix" the lean condition? I think this is an easy question...
4. IF the TS ECU appeared to "fix" the lean condition and give me, once again, acceptable a/f ratios, and my horsepower had increased, say 30 bhp over stock, would it be safe to say that my engine would be in good a good operating range or are there other factors that I'd be not figuring into the equation like air inlet temp, etc...?
<font color=blue>The above statements are only my take on the issue. If you disagree with anything I typed then you are 100% right!</font color=blue>
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From: Marietta, GA
Re: Pre and Post Crawford Plenum Dynos
Neff, Gurgen and Clint may be able to confirm but I'll take a stab:
1) Passenger side before the cat, much tougher to access according to my dyno guy which is why he took it from the #2 on the drivers side.
2) My dyno guy said he does what he did with the #2 o2 sensor with lots of cars and gets about 10 runs before the ECU gets goofed up. I think I proved that is true for the G with my last dyno posts.
3) that is what I'm being told. If you believe Q45TECH you aren't lean.
4) My dyno guy looking at my data said I could definitely make more power if I took care of the rich issue >5000 rpm but he didn't see that my results were something I HAD to "fix". He did think the ECU reflash would clean everything up though....Rod
03 5AT-Premium-Aero-Tire & Wheel Pkg-Splash-Z tube-K&N Filter-32% Tint-10 wire Grounding Gear-Crawford Plenum Ver 5
1) Passenger side before the cat, much tougher to access according to my dyno guy which is why he took it from the #2 on the drivers side.
2) My dyno guy said he does what he did with the #2 o2 sensor with lots of cars and gets about 10 runs before the ECU gets goofed up. I think I proved that is true for the G with my last dyno posts.
3) that is what I'm being told. If you believe Q45TECH you aren't lean.
4) My dyno guy looking at my data said I could definitely make more power if I took care of the rich issue >5000 rpm but he didn't see that my results were something I HAD to "fix". He did think the ECU reflash would clean everything up though....Rod
03 5AT-Premium-Aero-Tire & Wheel Pkg-Splash-Z tube-K&N Filter-32% Tint-10 wire Grounding Gear-Crawford Plenum Ver 5
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