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SVT Shelby GT500
2010 Dyno numbers - somewhat disappointed
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<blockquote data-quote="XP900" data-source="post: 16527261" data-attributes="member: 199546"><p>My HP is actually less than I quoted. Picked up the car today and the sheets and talked to the tuner. He said the MAF was holding it back and it needs to he changed (was reading at max voltage - 5 something??) if I wanted any more power or wanted to make any more changes...like pipes. He said pipes, MAF and HE are the only other things he would do and he had specific parts in mind....not cheap either. </p><p></p><p>So basically this is the result of a 2010 with 43K miles and the VMP budget kit (Gen2r, 2.5" pulley, JLT 123 CAI, 67mm VMP TB, 95ln DW injectors, 93 octane and the VMP dual pump boost kit that I wired in. Stock exhaust to rears. Everything else basically stock (3.55, tire size) alum driveshaft.</p><p></p><p>After watching VMP PERFORMANCE You tubes on their 2011 GT500 mods I was expecting more like 670-690 but I have a feeling I missed part of the video and they may have had a retune and used E85 to get to their levels. </p><p></p><p>Here are the dyno sheets</p><p> </p><p>[ATTACH=full]1673306[/ATTACH]</p><p></p><p></p><p></p><p>[ATTACH=full]1673307[/ATTACH]</p><p></p><p></p><p>In the second sheet the second entry is the VMP tune that they created for my car with their Gen2R budget kit and they were using the same options for the car. </p><p>That's what he used as a baseline. I did not datalog for VMP for retunes since I had no wideband on the car. Tuner used his wbands in the front O2 locations. </p><p></p><p></p><p>One thing I noticed immediately is the difference in the drive and power compared to my VMP supplied tune that I ran for a week....basically used that tune to get the car to the tuner. I have no more idling issues, car starts and idles down like it should and coming to a light while pressing the clutch in no longer causes idle drops and pickups, with me wondering if I am going to stall out -- all gone and 100% better whatever he did. VMP tune was also slightly bucking with light acc pedal and that issue is also gone. Pedal is the way I like it....the harder I press the more power I get and not all at once as soon as the pedal is touched and no bucking at any point. </p><p></p><p>I just hope it stays this way for a while and gives me some peace of mind.</p><p></p><p>On street...in NY temp is only like 48 and I have Pilot Sport 4S tires....with traction off it spins in 2 and 3rd when I press it hard so it is too cold to get a true feeling of the extra power and full boost. It does have more power than my stock with a 2.5 and CAI setup with the BAMA 93 race tune as they called it but not drastically more!</p><p></p><p>tune was $750...not cheap...and he did 10 pulls he said and road tested it. They also found my scraping noise that started 3 miles before I got to their shop. I though it was either a stone stuck the rotor guard or I just blew another pinion bearing (replaced one at 28K) when I punched it for a quick test before getting there. There was a branch that had jammed in my rocker panel underneath and it was scraping on the ground....somehow I missed it when i had looked underneath. $400 and hours of my life saved!</p></blockquote><p></p>
[QUOTE="XP900, post: 16527261, member: 199546"] My HP is actually less than I quoted. Picked up the car today and the sheets and talked to the tuner. He said the MAF was holding it back and it needs to he changed (was reading at max voltage - 5 something??) if I wanted any more power or wanted to make any more changes...like pipes. He said pipes, MAF and HE are the only other things he would do and he had specific parts in mind....not cheap either. So basically this is the result of a 2010 with 43K miles and the VMP budget kit (Gen2r, 2.5" pulley, JLT 123 CAI, 67mm VMP TB, 95ln DW injectors, 93 octane and the VMP dual pump boost kit that I wired in. Stock exhaust to rears. Everything else basically stock (3.55, tire size) alum driveshaft. After watching VMP PERFORMANCE You tubes on their 2011 GT500 mods I was expecting more like 670-690 but I have a feeling I missed part of the video and they may have had a retune and used E85 to get to their levels. Here are the dyno sheets [ATTACH=full]1673306[/ATTACH] [ATTACH=full]1673307[/ATTACH] In the second sheet the second entry is the VMP tune that they created for my car with their Gen2R budget kit and they were using the same options for the car. That's what he used as a baseline. I did not datalog for VMP for retunes since I had no wideband on the car. Tuner used his wbands in the front O2 locations. One thing I noticed immediately is the difference in the drive and power compared to my VMP supplied tune that I ran for a week....basically used that tune to get the car to the tuner. I have no more idling issues, car starts and idles down like it should and coming to a light while pressing the clutch in no longer causes idle drops and pickups, with me wondering if I am going to stall out -- all gone and 100% better whatever he did. VMP tune was also slightly bucking with light acc pedal and that issue is also gone. Pedal is the way I like it....the harder I press the more power I get and not all at once as soon as the pedal is touched and no bucking at any point. I just hope it stays this way for a while and gives me some peace of mind. On street...in NY temp is only like 48 and I have Pilot Sport 4S tires....with traction off it spins in 2 and 3rd when I press it hard so it is too cold to get a true feeling of the extra power and full boost. It does have more power than my stock with a 2.5 and CAI setup with the BAMA 93 race tune as they called it but not drastically more! tune was $750...not cheap...and he did 10 pulls he said and road tested it. They also found my scraping noise that started 3 miles before I got to their shop. I though it was either a stone stuck the rotor guard or I just blew another pinion bearing (replaced one at 28K) when I punched it for a quick test before getting there. There was a branch that had jammed in my rocker panel underneath and it was scraping on the ground....somehow I missed it when i had looked underneath. $400 and hours of my life saved! [/QUOTE]
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2010 Dyno numbers - somewhat disappointed
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