3.42 or 3.73 ring pinion
09-16-2021, 11:37 AM
#1
Instructor
Thread Starter
3.42 or 3.73 ring pinion
Hi all,
C6 Z06
Need to make a decision over the next few hours on which ring and pinion ratio i will need to select. Car is at ECS as there was suspect noise, turns out I need a rebuild of the rear end. I use this car for road racing and autocross. Choices in title. Thanks
C6 Z06
Need to make a decision over the next few hours on which ring and pinion ratio i will need to select. Car is at ECS as there was suspect noise, turns out I need a rebuild of the rear end. I use this car for road racing and autocross. Choices in title. Thanks
09-16-2021, 03:42 PM
#2
Race Director
there isn't an automatic answer to this. You need to look at your use of 2nd and 5th gears, and determine if the 20% decrease in speed will help or hurt you. RPM range, tire diameter etc are factors that could be unique to your situation.
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PRE-Z06 (09-19-2021)
09-19-2021, 02:06 PM
#4
Race Director
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Location: Fort Worth, Texas
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09-19-2021, 03:06 PM
#5
Burning Brakes
I did the 3.73 swap for road course, it was a bit quicker and yes 1st was useless.
When I went from LS1 to a built LS7 there was way to much shifting going on.
swapped back to 3.42.
I dont think I did any autox with the 3.73 but imagine it would make 2nd way more useful...
When I went from LS1 to a built LS7 there was way to much shifting going on.
swapped back to 3.42.
I dont think I did any autox with the 3.73 but imagine it would make 2nd way more useful...
09-20-2021, 09:47 AM
#6
Le Mans Master
I have a 3.73 in my C5 383ci stroker and do a lot of autox.... I end up using second everywhere but off the line. Drove a stock C5 and it wasnt very happy in second gear on the same track. I like the 3.73 for autox. Full track obviously depends on each track.