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2013-14 Shelby GT500
(2) Lund Custom Tunes And Still......
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<blockquote data-quote="Joe5.0" data-source="post: 12181932" data-attributes="member: 17462"><p><strong>John Lund Custom Tune.....Still Having Problems......</strong></p><p></p><p>..............Detonation and Pinging at 1/2 throttle on the dyno.</p><p></p><p>I tell you what guys this has been an absolute nightmare. I purchased the basics from Lethal Performance back in early August for the car....</p><p></p><p>-Innovators West 10%</p><p>-FRPP Monoblade TB</p><p>-JLT 127mm Carbon Fiber Intake</p><p>-Sct Xcal 3 With now (2) Lund Racing tunes</p><p>-Gates Belt</p><p>-Ngk TR'6's Gapped at 0.30</p><p></p><p>Tried to take it down to Brads Custom Auto here in Seattle....an extremely well known shop, and the car went into limp mode and barely ran/stummbled all over the place. When i arrived back home i adjusted some of the clamps on the upper intake tubing, and also moved the air filter farther down on the inlet pipe. The car then ran like an absolute dream all the way down to the dyno shop, but had a bloppy idle.</p><p></p><p>Once the car was hooked up to the dyno, we discovered it was reading 25% lean at idle which was causing the flucuation of RPMS. Next we went ahead and tried to do a quick pull on the dyno to 4,000 RPMS, and around 1/2 throttle the car detonates and pings extremely bad, suggesting it is running lean. We then went ahead and notified Lund Racing of the issue, and they confirmed.....and i quote:</p><p></p><p>"The file you were sent did not have the proper adjustments for the throttle body. This is the correct file. Sorry about the mixup"</p><p> </p><p>Ok so no big deal right? Nobody is perfect not even John Lund ( Or whoever tuned the ****Ing car) </p><p></p><p>They sent me a new custom tune, i loaded it into the car and it definately took care of the surging idle and runs alot better. But the car is STILL having the same issues. Detonation and pinging at 1/2 throttle or so. Brad shows that the fuel trims in the tune are off. </p><p></p><p>Lund Racing went on to suggest that the car may have "Bad Fuel" and that fuel in the Northwest is Notorious for bad fuel issues (92 Octane From 76 here in Washington State) and that i need some octane booster or better fuel. LOL!</p><p></p><p>Knowone told me that i need to run octane booster ON EVERY TANK OF GAS</p><p></p><p>-OR-</p><p></p><p>Run a higher quality of fuel (93 Octane which is near impossible to find here)</p><p></p><p>I suggested that a Datalog be sent into Lund Racing and was told:</p><p></p><p>"Datalogs shouldn't be needed. The tune is being run worldwide by all of our and Lunds customers and it seems to be very finicky with certain fuels"</p><p></p><p>We Datalogged the car on the dyno and it clearly shows that the long term fuel trims are off. Brad sent them the DataLog on Monday and ofcourse we have yet to hear anything back....</p><p></p><p>The point here is that the car STILL does not run right after (2) John Lund custom tunes, and has been sitting at the shop costing me who knows how much money just sitting there. Hopefully John Lund Racing helps get this right, i understand that knowone is perfect but for being so well known on the hours put into these cars.....im not very impressed, and extremely pissed off thus far.</p><p></p><p>Any input helps guys.</p></blockquote><p></p>
[QUOTE="Joe5.0, post: 12181932, member: 17462"] [b]John Lund Custom Tune.....Still Having Problems......[/b] ..............Detonation and Pinging at 1/2 throttle on the dyno. I tell you what guys this has been an absolute nightmare. I purchased the basics from Lethal Performance back in early August for the car.... -Innovators West 10% -FRPP Monoblade TB -JLT 127mm Carbon Fiber Intake -Sct Xcal 3 With now (2) Lund Racing tunes -Gates Belt -Ngk TR'6's Gapped at 0.30 Tried to take it down to Brads Custom Auto here in Seattle....an extremely well known shop, and the car went into limp mode and barely ran/stummbled all over the place. When i arrived back home i adjusted some of the clamps on the upper intake tubing, and also moved the air filter farther down on the inlet pipe. The car then ran like an absolute dream all the way down to the dyno shop, but had a bloppy idle. Once the car was hooked up to the dyno, we discovered it was reading 25% lean at idle which was causing the flucuation of RPMS. Next we went ahead and tried to do a quick pull on the dyno to 4,000 RPMS, and around 1/2 throttle the car detonates and pings extremely bad, suggesting it is running lean. We then went ahead and notified Lund Racing of the issue, and they confirmed.....and i quote: "The file you were sent did not have the proper adjustments for the throttle body. This is the correct file. Sorry about the mixup" Ok so no big deal right? Nobody is perfect not even John Lund ( Or whoever tuned the ****Ing car) They sent me a new custom tune, i loaded it into the car and it definately took care of the surging idle and runs alot better. But the car is STILL having the same issues. Detonation and pinging at 1/2 throttle or so. Brad shows that the fuel trims in the tune are off. Lund Racing went on to suggest that the car may have "Bad Fuel" and that fuel in the Northwest is Notorious for bad fuel issues (92 Octane From 76 here in Washington State) and that i need some octane booster or better fuel. LOL! Knowone told me that i need to run octane booster ON EVERY TANK OF GAS -OR- Run a higher quality of fuel (93 Octane which is near impossible to find here) I suggested that a Datalog be sent into Lund Racing and was told: "Datalogs shouldn't be needed. The tune is being run worldwide by all of our and Lunds customers and it seems to be very finicky with certain fuels" We Datalogged the car on the dyno and it clearly shows that the long term fuel trims are off. Brad sent them the DataLog on Monday and ofcourse we have yet to hear anything back.... The point here is that the car STILL does not run right after (2) John Lund custom tunes, and has been sitting at the shop costing me who knows how much money just sitting there. Hopefully John Lund Racing helps get this right, i understand that knowone is perfect but for being so well known on the hours put into these cars.....im not very impressed, and extremely pissed off thus far. Any input helps guys. [/QUOTE]
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(2) Lund Custom Tunes And Still......
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