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2013-14 Shelby GT500
Turning to the experts
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<blockquote data-quote="raustin0017" data-source="post: 16266568" data-attributes="member: 145559"><p>Will keep it short as possible. 16,500 miles original owner. Raven Racing 13.5 kit: 2.4 upper, Ford Racing 65MM TB, JTL intake tube, TR6 plugs, Lund Tune for 93, ARH Long Tubes.</p><p>Everything was fine and She has never even had one hiccup but I had never data logged. Contacted Lund and set up laptop and used my SCT X4 and followed the directions. Sent Lund the file and was told it was running a little rich and they sent me another tune to upload. Uploaded and started to data log again. Start up fine, runs great when not in boost. As soon as She starts to use boost...misses real bad. No backfire but real rough cough and sputters and certainly not right.</p><p>Retuned to prior tune that was sent to me about 9-months ago when the Long Tubes were installed. Start up fine, runs great until above 3,500 rpm then starts missing real bad again.</p><p>Parked it overnight. Drove to work next day just fine. After temps got to normal range did a pull and it ran great up to redline. That same afternoon coming home miss comes back.</p><p>Pulled plugs installed new NGK TR6. Miss is still there. </p><p></p><p>Are these systems mechanical or is the Tune?</p><p></p><p>Lund is waiting for me to contact them and I'm sure they will do everything to get this issue resolved but wanted to turn to the experts who own one.</p><p>Thanks in advance for your advice.</p><p>Bob</p></blockquote><p></p>
[QUOTE="raustin0017, post: 16266568, member: 145559"] Will keep it short as possible. 16,500 miles original owner. Raven Racing 13.5 kit: 2.4 upper, Ford Racing 65MM TB, JTL intake tube, TR6 plugs, Lund Tune for 93, ARH Long Tubes. Everything was fine and She has never even had one hiccup but I had never data logged. Contacted Lund and set up laptop and used my SCT X4 and followed the directions. Sent Lund the file and was told it was running a little rich and they sent me another tune to upload. Uploaded and started to data log again. Start up fine, runs great when not in boost. As soon as She starts to use boost...misses real bad. No backfire but real rough cough and sputters and certainly not right. Retuned to prior tune that was sent to me about 9-months ago when the Long Tubes were installed. Start up fine, runs great until above 3,500 rpm then starts missing real bad again. Parked it overnight. Drove to work next day just fine. After temps got to normal range did a pull and it ran great up to redline. That same afternoon coming home miss comes back. Pulled plugs installed new NGK TR6. Miss is still there. Are these systems mechanical or is the Tune? Lund is waiting for me to contact them and I'm sure they will do everything to get this issue resolved but wanted to turn to the experts who own one. Thanks in advance for your advice. Bob [/QUOTE]
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Turning to the experts
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