S550 Lap Times (Road Course)

[c_reber]

2016 Ford Mustang GT base w/ PP
Buttonwillow 13cw
2:00.336
Brake Pads/rotors: stock (amsoil dot 4 fluid)
Tires (Size & Model): Pirelli P Zero 285/40/19 on XXR 19x9.75 wheels
Suspension: AFe Coilovers, MM camber plates, BMR vertical links, BMR toe links, Whiteline rear swaybar
Other Mods: Amsoil trans/gear oil, MGW shifter

Vid coming soon.

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[LSU Mech Eng]

Texas World Speedway

'15 Mustang GT base w/ PP
Texas World Speedway, 2.9 mile CCW
Best Lap Time: 1:59.81
Powerstop Trackday brake pads on stock rotors
315/30/18 Toyo R888 on 18x11 CF5 Forgestar
GT350R Springs, GT350 Shocks, Eibach bars, polyurethane bushings
No other mods (unless you count the matte black 5.0 emblems )

[ame="[MEDIA=youtube]U2DcKH_z53k[/MEDIA]"]

 

[hulk_smash]

2016 Ford Mustang GT base w/ PP
Buttonwillow 13cw
2:00.336
Brake Pads/rotors: stock (amsoil dot 4 fluid)
Tires (Size & Model): Pirelli P Zero 285/40/19 on XXR 19x9.75 wheels
Suspension: AFe Coilovers, MM camber plates, BMR vertical links, BMR toe links, Whiteline rear swaybar
Other Mods: Amsoil trans/gear oil, MGW shifter

Vid coming soon.

Great time c_reber!

I'll be out there this week in mostly stock form. Hopefully I can be within reasonable distance of your time. It's been about 14 months since I"ve been on a course. =)

 

[Gatorac]

Make/Model/engine/trans/packages: 2015 premium GT w/ PP 6spd
Track/Course: Sebring
Best Lap Time: 2:31.5
Brake Pads:GLoc R12
Tires (Size & Model): Stock Pirelli's
Suspension: Steeda linear springs and sways.
Other Mods: Solo Performance exhaust.

Video (2nd lap in this video)

[ame]

 

[Plimmer]

Make/Model/engine/trans/packages: 2015 Ford Mustang GT base
Track/Course: COTA
Best Lap Time: 2:39.264 (final out of the 2:40's lol)
Brake Pads: Front brembo TS20, Rear carbotech XP10
Tires (Size & Model): 305/30/19 all four corners, Yokohama AD08R
Suspension: Cortex / JRi single clickers
Other Mods: GT350 intake and Stainless Works full exhaust



Any tips to get me into the low 2:30 will be appreciated

 

[Brent Dalton]

Nice laps Rob! That was painful to watch the Porsche hold you up for a couple laps. Wish I could have made it down.

 

[ddozier]

Road Atlanta

Make/Model/engine/trans/packages: 2015 Ford Mustang GT/PP
Track/Course: Road Atlanta
Best Lap Time: 1:38.09
Virtual Best Lap Time: 1:37.68
Brake Pads: XP20f XP12r
Tires (Size & Model): Nitto NT-01 275/40-18F 305/35-18R
Suspension: RideTech Coilovers
Other Mods:GT350r wing, 3" Front Splitter, Headers and custom exhaust

Last event of the year, now I have some data so the real work will begin over the winter.

Here are a couple of back to back 1:38.xx's to view, You will notice I do not use the exit curbs at turn 5, I normally do but even with the 600lb rear springs I would hit the bump stop on the passenger side rear shock if I went up there so I decided to stay off the curb to save my shocks. I am still having a horrible time getting use to the shifter on these cars, I added the Blowfish bracket and it made a big improvement but I am thinking the only real fix is the Magnum. Once the stock clutch dies I will have to decide on what is next.

[ame]

Dave

 

[Brent Dalton]

Hell yeah Dave! Wish I could have made it. Look forward to seeing the video.

 

[hulk_smash]

2016 Ford Mustang GT base w/ PP (manual)
Buttonwillow 13CW
2:05.079
Brake Pads/rotors: Stock + GLOC pads
Tires (Size & Model): Yokohama AD08R 295/30/19 on OEM GT350 wheels
Suspension: Swift Spec R Springs, MM Camber Plates & BMR Sway Bars
Other Mods: MGW shifter

2016 Ford Mustang GT base w/ PP (manual)
Chuckwalla Valley Raceway CCW
2:07.581
Brake Pads/rotors: Stock + GLOC pads
Tires (Size & Model): Yokohama AD08R 295/30/19 on OEM GT350 wheels
Suspension: Swift Spec R Springs, MM Camber Plates & BMR Sway Bars
Other Mods: MGW shifter

I'm so not used to this rapid short gearing. It hits redline almost too fast. Still getting used to sliding the big car around. The stock seats are horrendous and I have 2 huge welts on both knees.

I used BG 5W30, trans and 75/140 gear oil and I'm happy to report that I had zero over heating. Temps were about 55 in the morning and 75 by session 2.

I really think seats and harness are worth like 3-4 seconds on this car (compared to the base seat anyways).

I will do more drifting in this car and get used to the fast redline and hopefully I can put down better times.

Brakes are fantastic for stock brakes. Car is a little floaty in fast transitions. But it's a pretty good suspension for a stock car.

I'm thinking, stock car with solid bushings + stiffer springs would be pretty competitive.

I expected to be faster at Buttonwillow but I guess its' not too bad considering a 14 month hiatus and a new car.

 

[ddozier]

Hell yeah Dave! Wish I could have made it. Look forward to seeing the video.

Video is up, there was at least 5 S550 running on Sat and Sunday, all but me were in the novice and intermediate group. The instructors had a bad day, we had a few cars in the wall and i believe most were instructors cars.

Overall it was good time.

Dave

 

[tyshenry]

Make/Model/engine/trans/packages: 2015 Ford Mustang GT/PP
Track/Course: Road Atlanta
Best Lap Time: 1:38.09
Virtual Best Lap Time: 1:37.68
Brake Pads: XP20f XP12r
Tires (Size & Model): Nitto NT-01 275/40-18F 305/35-18R
Suspension: RideTech Coilovers
Other Mods:GT350r wing, 3" Front Splitter, Headers and custom exhaust

Last event of the year, now I have some data so the real work will begin over the winter.

Here are a couple of back to back 1:38.xx's to view, You will notice I do not use the exit curbs at turn 5, I normally do but even with the 600lb rear springs I would hit the bump stop on the passenger side rear shock if I went up there so I decided to stay off the curb to save my shocks. I am still having a horrible time getting use to the shifter on these cars, I added the Blowfish bracket and it made a big improvement but I am thinking the only real fix is the Magnum. Once the stock clutch dies I will have to decide on what is next.




Dave

What rear spring rate does the equate to at stock location? I am not sure of the exact motion ratios of the two locations. I think I have heard .3 thrown around for stock location?

 

[ddozier]

What rear spring rate does the equate to at stock location? I am not sure of the exact motion ratios of the two locations. I think I have heard .3 thrown around for stock location?

I have no idea I have not measured anything yet, we wanted to get the car on track this season and see what we had to work with, gather some data, and then start dialing in the setup. This winter will see some major changes to the car and the aero should be greatly improved. As a result of the added aero and testing without much aero we are going to bump up the rear rates into the 700-750 range to start. The other limiting issue in the rear is over all shock travel is not that good due to the short coil assembly in the rear.

Dave

 

[Sock]

What rear spring rate does the equate to at stock location? I am not sure of the exact motion ratios of the two locations. I think I have heard .3 thrown around for stock location?

Stock motion ratio .48

 

[Sock]

I have no idea I have not measured anything yet, we wanted to get the car on track this season and see what we had to work with, gather some data, and then start dialing in the setup. This winter will see some major changes to the car and the aero should be greatly improved. As a result of the added aero and testing without much aero we are going to bump up the rear rates into the 700-750 range to start. The other limiting issue in the rear is over all shock travel is not that good due to the short coil assembly in the rear.

Dave

I run 650s in the rear and do not have any problem getting into the bump stops. But I am not sure I have the same internals in my Ridetechs.

 

[tyshenry]

Stock motion ratio .48

What is it at the shock location?

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