Tyler Posted April 2, 2021 Author Share Posted April 2, 2021 Good deal! But 13 MPG @ 70 is nothing to write home about. Do you have more tuning to do? I guess I do now. The sniper is supposed to tune itself. I haven't looked into tweaking it. Link to comment Share on other sites More sharing options...
Gary Lewis Posted April 2, 2021 Share Posted April 2, 2021 I guess I do now. The sniper is supposed to tune itself. I haven't looked into tweaking it. Does it control the ignition? Have you tried more initial advance? Link to comment Share on other sites More sharing options...
Tyler Posted April 2, 2021 Author Share Posted April 2, 2021 Does it control the ignition? Have you tried more initial advance? No ignition control for my setup. I'm using the stock vacuum advance. I think I have it set somewhere between 6⁰ and 10⁰ when vacuum line is disconnected. Hard to see the timing marks on the sawtooth scale. What would you recommend, timing-wise? Link to comment Share on other sites More sharing options...
Gary Lewis Posted April 2, 2021 Share Posted April 2, 2021 No ignition control for my setup. I'm using the stock vacuum advance. I think I have it set somewhere between 6⁰ and 10⁰ when vacuum line is disconnected. Hard to see the timing marks on the sawtooth scale. What would you recommend, timing-wise? You might check out this post. We did a lot of work on David's truck and documented it. Link to comment Share on other sites More sharing options...
Tyler Posted April 2, 2021 Author Share Posted April 2, 2021 You might check out this post. We did a lot of work on David's truck and documented it. Looks like I've got some learning to do... Every MPG counts, especially since I'm starting a cross-country trip in the truck in about 2 months. Thank you! Link to comment Share on other sites More sharing options...
Tyler Posted April 4, 2021 Author Share Posted April 4, 2021 You might check out this post. We did a lot of work on David's truck and documented it. Bumped timing advance to 14⁰ and leaned out cruising band on the sniper to 15.5 AFR. The default setting was 14. No pinging under load at any throttle position. Most recent tank, got 15.3 MPG. Neato. Now I need to learn more about setting a better baseline tune so the sniper won't have to trim as much. Thanks for the info! You might check out this post. We did a lot of work on David's truck and documented it. Link to comment Share on other sites More sharing options...
Rusty_S85 Posted April 4, 2021 Share Posted April 4, 2021 I guess I do now. The sniper is supposed to tune itself. I haven't looked into tweaking it. Only tuning the sniper does is the base fuel map. Other aspects such as fuel enrichment with cold and hot start conditions are not self tuning along with fuel enrichment on acceleration as well. Its why everyone strongly recommends to have the sniper tuned. I will be having one of the best tune mine once I am done with my build. His site is Mad Science Motorsports, he does remote tuning as well as first time start up tuning as well. Link to comment Share on other sites More sharing options...
Gary Lewis Posted April 4, 2021 Share Posted April 4, 2021 Bumped timing advance to 14⁰ and leaned out cruising band on the sniper to 15.5 AFR. The default setting was 14. No pinging under load at any throttle position. Most recent tank, got 15.3 MPG. Neato. Now I need to learn more about setting a better baseline tune so the sniper won't have to trim as much. Thanks for the info! You might check out this post. We did a lot of work on David's truck and documented it. Ty - Glad it is working for you. But you may not have enough vacuum advance dialed in. You should see what your vac advance is giving at various vacuum levels. Link to comment Share on other sites More sharing options...
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