Air/Fuel Ratio Gauge, Anyone using one? |
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Air/Fuel Ratio Gauge, Anyone using one? |
race914 |
Nov 20 2006, 06:01 PM
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#1
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73 914-4 Group: Members Posts: 1,006 Joined: 31-October 05 From: Nipomo, California (Central Coast) Member No.: 5,027 Region Association: Central California |
A little background. I bought my motor used and besides not knowing how well it was tuned to start with, I changed out the 4 into 1 headers with a set of Chris Foley's 4-2-1s.. Sometimes I get pops & flames out the exhaust on decel so I'd like to see if my Webers are jetted right.
I don't have easy access to a chassis dyno and am considering a wideband Air/Fuel Ratio Gauge so I can log and monitor the data at the track. Again, I'm curious how my normal AFR is with just my Phase 9 (sometimes I'm getting pops & flames out the exhaust on decel) and also what happens to my AFR when I add my supertrapp onto the Phase 9 for <=90db tracks, etc. (This usually eliminates the pops & flames) I could make a long tow to a chassis dyno somewhere but I'm thinking the gauge might be more helpful longterm to have ongoing access to the data.. Anyone use one of these? (IMG:http://www.autometer.com/img/products/4378_d.jpg) AutoMeter or one of these? (IMG:http://shop.airfuelratio.com/images/product_1_zm.jpg) NGK I know there are lots of other brands out there too (AEM, etc.) Anyone get good enough data for tuning purposes? Or should I just go find a chassis dyno? Thanks in advance for any feedback on your experiences |
Joe Ricard |
Nov 20 2006, 07:48 PM
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#2
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CUMONIWANNARACEU Group: Members Posts: 6,811 Joined: 5-January 03 From: Gautier, MS Member No.: 92 |
I have a narrow band that has been a great help in tuning.
I just scored a wide band today as a matter of fact. For some reason I just found a big load of power by going down a main jet size and air corretion tweak. Cold air hot air sometimes drives me crazy But I am learning and logging all the time. |
race914 |
Nov 20 2006, 08:15 PM
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#3
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73 914-4 Group: Members Posts: 1,006 Joined: 31-October 05 From: Nipomo, California (Central Coast) Member No.: 5,027 Region Association: Central California |
Hi Joe,
I had read on other forums that the AFR gauges did not help with tuning... Glad your experience shows the contrary! Thanks for the feedback. Greg I have a narrow band that has been a great help in tuning. I just scored a wide band today as a matter of fact. For some reason I just found a big load of power by going down a main jet size and air corretion tweak. Cold air hot air sometimes drives me crazy But I am learning and logging all the time. |
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