11.69 @ 117 mph Minimal Mods 2011 Mustang
#1
11.69 @ 117 mph Minimal Mods 2011 Mustang
Today, I went to the track with our 2011 Mustang GT auto.
Only new mod was our aluminum 1-piece driveshaft. Previous mods were Stainless Works Headers, Catted Mid-Pipe, and Catback, 4.10 Ring & Pinion, Livernois Motorsports Dyno Tune, and skinnies/drag radials.
The car still has the stock airbox and no suspension mods other than a swaybar relocation bracket.
The next mods will be a converter and CAI.
The weather was better than previously
Density Altitude - 1939
Air Temp - 76 Degrees F
Barometric Pressure - 29.97 Inches Hg
Relative Humidity - 48%
Best ET 11.69 @ 117.55 mph
Also ran 11.70, 11.72, and 11.75 @ 117 mph
For those that think we have an optimistic dyno, the car doesn't even make 400 RWHP.
Regards,
Rick LeBlanc
Livernois Motorsports
Only new mod was our aluminum 1-piece driveshaft. Previous mods were Stainless Works Headers, Catted Mid-Pipe, and Catback, 4.10 Ring & Pinion, Livernois Motorsports Dyno Tune, and skinnies/drag radials.
The car still has the stock airbox and no suspension mods other than a swaybar relocation bracket.
The next mods will be a converter and CAI.
The weather was better than previously
Density Altitude - 1939
Air Temp - 76 Degrees F
Barometric Pressure - 29.97 Inches Hg
Relative Humidity - 48%
Best ET 11.69 @ 117.55 mph
Also ran 11.70, 11.72, and 11.75 @ 117 mph
For those that think we have an optimistic dyno, the car doesn't even make 400 RWHP.
Regards,
Rick LeBlanc
Livernois Motorsports
#3
GTR Member
Not bad.
I still wonder if you couldn't get there with just a high stall converter instead of the 4.10 gears.
If I were to do it I wouldn't want to go that low of a gear, I do too much highway driving and would want to keep the highway gas mileage up.
I still wonder if you couldn't get there with just a high stall converter instead of the 4.10 gears.
If I were to do it I wouldn't want to go that low of a gear, I do too much highway driving and would want to keep the highway gas mileage up.
#4
Mileage didn't change much and it's still very drivable on the highway with the 4.10's and 6-speed auto.
We're installing a 4,000 rpm stall next week.... should be interesting.
-Rick
#9
I was told we can't reveal that yet. Still need to do some testing, then I will post up.
More consistent, easier on parts, quicker... We had a 2005 Mustang GT that made 800 RWHP with a manual trans and it was hard to get down the track and broke parts. We had a 2007 Mustang GT auto that made 540 RWHP and went 10.7 @ 131 mph on 20's and could be driven anywhere and never broke anything.
There were a few similarly modded manual trans cars there tonight and they weren't running close to the times I was.
-Rick
There were a few similarly modded manual trans cars there tonight and they weren't running close to the times I was.
-Rick
#15
Bullitt Member
Join Date: February 4, 2010
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Thanks for the link Rick.
I see what you mean. Might have half a tenth there if all else was equal but the weather.
The much lighter shaft with less joints has to be worth something in ET.
A back to back dyno run would easily show the rwhp gains. May not be the point of your mission though.
Best of luck for future runs/data.
I see what you mean. Might have half a tenth there if all else was equal but the weather.
The much lighter shaft with less joints has to be worth something in ET.
A back to back dyno run would easily show the rwhp gains. May not be the point of your mission though.
Best of luck for future runs/data.
#17
Cobra R Member
Join Date: June 17, 2010
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As a stick driver, I appreciate the slammin' shifting of the auto. No way could I shift that fast. Then again, unlike an auto-trans, I CAN read my mind and so I know not to shift in the middle of a high-g turn. That's my main reason for going MT this time around. If they'd add paddle shifting or a true automatic clutch in lieu of a torque-converter I might be persuaded to come to the dark side.
#18
Cobra R Member
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Why do you always feel the need to try and justify the fact that you drive an automatic? You should check out my mom's Toyota Camry, the auto in that thing is sweet
Last edited by Adam; 8/26/10 at 10:40 AM.
#19
Shelby GT350 Member