2014 1LE vs BMW M3 and Mustang at Solo Nationals - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Retro69 · 10-01-2015, 12:52 PM

http://www.solomatters.com/class_rep...eet_comparison

Mikamaro · 10-07-2015, 12:21 PM

interesting read, thanks.

Norm Peterson · 10-08-2015, 06:52 AM

Interesting indeed.

Obviously Ford wasn't paying any attention to gearing for autocross (never mind what Sammy had done with the S197's over several years, and his adamant position that 3.31's were what you wanted, not 3.73's or even 3.55's), nor was Chevy either with transmission gearing that's taller than optimum for this activity.

What amazes me the most was that the 2007 Shelby's times were as close to the rest as they were, and in spite of a claimed differential handicap.

Norm

Mikamaro · 10-08-2015, 02:24 PM

Quote:

Originally Posted by Norm Peterson

Interesting indeed.

Obviously Ford wasn't paying any attention to gearing for autocross (never mind what Sammy had done with the S197's over several years, and his adamant position that 3.31's were what you wanted, not 3.73's or even 3.55's), nor was Chevy either with transmission gearing that's taller than optimum for this activity.

What amazes me the most was that the 2007 Shelby's times were as close to the rest as they were, and in spite of a claimed differential handicap.

Norm

Which gearing ratio do you have Norm?

Norm Peterson · 10-08-2015, 03:15 PM

3.55

I should mention that Sam's recommendation of 3.31's was for cars with the MT-82 transmission (in which 2nd is 2.43:1, vs 2.00:1 in my car's and the 2007 Shelby GT's TR3650). The overall 2nd gear difference between my car and a GT/PP with its 3.73's is nearly a whole gear spacing, at about 1.28:1.

Norm

10-01-2015, 12:52 PM	#1
Retro69 Drives: 2018 Camaro ZL1 Join Date: Jun 2011 Location: Morgan, UT Posts: 1,359	2014 1LE vs BMW M3 and Mustang at Solo Nationals http://www.solomatters.com/class_rep...eet_comparison __________________ Last edited by Retro69; 10-01-2015 at 01:04 PM.

10-07-2015, 12:21 PM	#2
Mikamaro MikeNoMaro Drives: A 2016 Challenger R/T M6 STP Join Date: Sep 2009 Location: America Posts: 2,375 View My Garage	interesting read, thanks. __________________ Track Day Videos: http://www.youtube.com/user/mrgoodman2000/videos Built #83817, Born January 18th, Christened June 11th 2010, Stolen October 3rd 2016.

10-08-2015, 06:52 AM	#3
Norm Peterson corner barstool sitter Drives: 08 Mustang GT, 19 WRX Join Date: Jul 2012 Location: Eastern Time Zone Posts: 6,990	Interesting indeed. Obviously Ford wasn't paying any attention to gearing for autocross (never mind what Sammy had done with the S197's over several years, and his adamant position that 3.31's were what you wanted, not 3.73's or even 3.55's), nor was Chevy either with transmission gearing that's taller than optimum for this activity. What amazes me the most was that the 2007 Shelby's times were as close to the rest as they were, and in spite of a claimed differential handicap. Norm __________________ '08 GT coupe 5M (the occasional track toy) '19 WRX 6M (the family sedan . . . seriously)

10-08-2015, 03:15 PM	#5
Norm Peterson corner barstool sitter Drives: 08 Mustang GT, 19 WRX Join Date: Jul 2012 Location: Eastern Time Zone Posts: 6,990	3.55 I should mention that Sam's recommendation of 3.31's was for cars with the MT-82 transmission (in which 2nd is 2.43:1, vs 2.00:1 in my car's and the 2007 Shelby GT's TR3650). The overall 2nd gear difference between my car and a GT/PP with its 3.73's is nearly a whole gear spacing, at about 1.28:1. Norm __________________ '08 GT coupe 5M (the occasional track toy) '19 WRX 6M (the family sedan . . . seriously)