Original Muncie with new overdrive gearing?
12-19-2011, 12:54 AM
#41
Race Director
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2020 Corvette of the Year Finalist (appearance mods)
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Forgive my memory, but you guys keep talking about 4.11 gears. I remember Corvette gears being 4.10. And if you wanted to go over the 3.91 set you needed either a spacer plate or a new housing. Am I mistaken?
Weren't the Corvette gear set ratios a little bit different from the rest of the solid axles?
Weren't the Corvette gear set ratios a little bit different from the rest of the solid axles?
Last edited by Kerrmudgeon; 12-19-2011 at 12:57 AM.
10-06-2012, 08:37 AM
#43
Melting Slicks
Jack, 3.08 rear with your Wide ratio Muncie will work great for the long distance cruising you do. That's what I have in mine now and since I don't care to drag the Rice burners and there are hardly any worthy muscle cars that cruise these parts now, it serves me well and is STOCK without the big dollar tranny conversion. 
10-07-2012, 01:02 PM
#44
Instructor
10-07-2012, 10:49 PM
#45
Aw man this goes against all "expert advice" LOL - running 3.08's with a 2.52 first. 
You're going against all engineering principles as developed on this forum
Man the "you need a minimum of 10 overall 1st gear ratio !" crowd is going to have a fit !!
Seriously;
I will be trying 3.08's with a 2.64 1st and if adequate for passing , climbing hills, etc then will build a 2.73 pumpkin for my '59 to run with a custom ratio NEW Muncie to maintain the original 8.14 1st gear ratio
You're going against all engineering principles as developed on this forum
Man the "you need a minimum of 10 overall 1st gear ratio !" crowd is going to have a fit !!
Seriously;
I will be trying 3.08's with a 2.64 1st and if adequate for passing , climbing hills, etc then will build a 2.73 pumpkin for my '59 to run with a custom ratio NEW Muncie to maintain the original 8.14 1st gear ratio
10-08-2012, 07:20 AM
#47
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Aw man this goes against all "expert advice" LOL - running 3.08's with a 2.52 first.
You're going against all engineering principles as developed on this forum
Man the "you need a minimum of 10 overall 1st gear ratio !" crowd is going to have a fit !!
Seriously;
I will be trying 3.08's with a 2.64 1st and if adequate for passing , climbing hills, etc then will build a 2.73 pumpkin for my '59 to run with a custom ratio NEW Muncie to maintain the original 8.14 1st gear ratio
You're going against all engineering principles as developed on this forum
Man the "you need a minimum of 10 overall 1st gear ratio !" crowd is going to have a fit !!
Seriously;
I will be trying 3.08's with a 2.64 1st and if adequate for passing , climbing hills, etc then will build a 2.73 pumpkin for my '59 to run with a custom ratio NEW Muncie to maintain the original 8.14 1st gear ratio
the '10' is a target and engine torque will have a great effect on driveability.
what do you call 'custom gears', and where do you get them?
Bill
10-08-2012, 12:36 PM
#48
Nah I have NEVER heard once, any of the "clutch artist's" state anything about torque blah blah blah - just that YOU HAVE TO HAVE a 1st gear ratio of 10 because THEY KNOW !
Seems to be a target for inept -------'s LOL
Seems to be a target for inept -------'s LOL
10-08-2012, 01:46 PM
#49
Race Director
'67 convertible, 3:36 rear axle, mildly built ZZ4 engine.
Before - Muncie CR, 2.20 first, 7.39 overall ratio off the line. Lousy launch characteristics - 3 choices: slip the clutch, dump the clutch at rpm and light 'em up, or risk lugging/stalling the engine. Hills required much clutch slipping/burning/hot odor.
Now - Tremec 5 spd, 3.27 first, 10.98 overall. Can idle it off the line, or really light 'em up if you want. Seems just about ideal to me. Hills no problem at all.
Down side (such as it is) - 1st gear now "only" good to 45 mph vs 60 before. Big deal..............Not!
Up side - 70 mph is now 2000 rpm vs 3000 before. A VERY big deal! 22 mpg at 70 mph.
I'm happy - and 10:1 overall 1st gear ratio seems to work out pretty d@mn well in my case.
Oh yeah - IBTL
Last edited by tuxnharley; 10-08-2012 at 04:26 PM. Reason: correction
