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SVTPerformance's Chain of Restaurants
Tuning À la carte
Tune Question - 2003 Cobra
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<blockquote data-quote="SC Heaven" data-source="post: 14409372" data-attributes="member: 142287"><p>Hoping this is the appropriate place to put this. I have a 2003 Cobra with the following engine modifications.</p><p></p><p>- JLT Gen2 True Cold Air</p><p>- Accufab SBTB and Plenum</p><p>- JBA O/R H-Pipe</p><p></p><p>The car is currently tuned with a canned tune off of an older Diablosport handheld tuner. The tuner has 3 different options for 91 Octane (highest avail. where I live). </p><p></p><p>1) Custom tune</p><p>2) 91 Octane Performance Tune</p><p>3) 91 Octane Pulley Tune</p><p></p><p>As of now I plan on getting the car on the rollers for a proper tune next spring. Unfortunately some unforseen house repairs ate into my play budget and put off work on the car. So as a holdover I am running tune #2 (91 Performance Tune), which research shows should be good for stock to lightly modded cars.</p><p></p><p>However, the other night I did a WOT pull in 2nd gear down an empty back road. I had friends in another car behind me who came up afterwards saying the car didn't smell right during the pull. My friends are car guys so they understand the car is de-catted and what that should smell like, so naturally I am a bit concerned. </p><p></p><p>The car has been in its current configuration going on 8 months now and has had 0 issues or drive ability problems. But the 'funny smell' comment has me concerned. The car doesn't smell off to me when idling or driving around, but I obviously can't smell it when I am making a pull, so it's hard to judge for myself.</p><p></p><p>So my question is, am I pushing too much air with my current mods for the tune? I have debated putting on the pulley tune but am worried about over fueling, although I would rather be running too rich than too lean. I do not have an A/F gauge and like I mentioned, it has not yet been on the rollers, so I do not know what my A/F numbers look like. </p><p></p><p>So do I leave it as is and just avoid WOT pulls until I have it properly dyno tuned or do I experiment with the Pulley Tune? I also have a smaller upper pulley that was going to go on the car when it got dyno tuned, but funds have stopped that as well as I don't want to install the new upper without an Aux Idler setup.</p><p></p><p>Also, I am in Denver (5280 ft) so I have a hard time believing the car is running out of fuel.</p><p></p><p></p><p>Sorry for the long read. Thanks in advance for any insight / advice. :coolman:</p></blockquote><p></p>
[QUOTE="SC Heaven, post: 14409372, member: 142287"] Hoping this is the appropriate place to put this. I have a 2003 Cobra with the following engine modifications. - JLT Gen2 True Cold Air - Accufab SBTB and Plenum - JBA O/R H-Pipe The car is currently tuned with a canned tune off of an older Diablosport handheld tuner. The tuner has 3 different options for 91 Octane (highest avail. where I live). 1) Custom tune 2) 91 Octane Performance Tune 3) 91 Octane Pulley Tune As of now I plan on getting the car on the rollers for a proper tune next spring. Unfortunately some unforseen house repairs ate into my play budget and put off work on the car. So as a holdover I am running tune #2 (91 Performance Tune), which research shows should be good for stock to lightly modded cars. However, the other night I did a WOT pull in 2nd gear down an empty back road. I had friends in another car behind me who came up afterwards saying the car didn't smell right during the pull. My friends are car guys so they understand the car is de-catted and what that should smell like, so naturally I am a bit concerned. The car has been in its current configuration going on 8 months now and has had 0 issues or drive ability problems. But the 'funny smell' comment has me concerned. The car doesn't smell off to me when idling or driving around, but I obviously can't smell it when I am making a pull, so it's hard to judge for myself. So my question is, am I pushing too much air with my current mods for the tune? I have debated putting on the pulley tune but am worried about over fueling, although I would rather be running too rich than too lean. I do not have an A/F gauge and like I mentioned, it has not yet been on the rollers, so I do not know what my A/F numbers look like. So do I leave it as is and just avoid WOT pulls until I have it properly dyno tuned or do I experiment with the Pulley Tune? I also have a smaller upper pulley that was going to go on the car when it got dyno tuned, but funds have stopped that as well as I don't want to install the new upper without an Aux Idler setup. Also, I am in Denver (5280 ft) so I have a hard time believing the car is running out of fuel. Sorry for the long read. Thanks in advance for any insight / advice. :coolman: [/QUOTE]
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Tune Question - 2003 Cobra
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