Which Gears to use

bigdaddy999 · 08-17-2005, 12:59 PM

A buddy of mine has a 86gt with a 3 speed auto. right now he has 4:10's and he hates it. He was wondering which gears would be the best for an everyday driver, and still be ballsy. I told him 3:55's would probably be good, but he thinks 3:73's.Please give me your insight. Thanks

Ieatcamaros · 08-17-2005, 03:14 PM

Well if he hates it with the 4.10's, he won't like 3.73's either. With a 26" tire and assuming this is a c-4 were talking about here, at 60 mph in high gear he is turning 3180 RPM. Switching to 3.73's will only drop them to 2982 RPM. Switching to 3.55's will drop the RPM's to 2753. I think the 3.55's will be his best bet. I think the 3.27's would be too tall, but that's my opinion. They would put him at 2536 RPM. Remember all of this is with a 26" tire and a c4 transmission.

82 GT · 08-17-2005, 06:05 PM

If he switches to a 16 or 17 inch tire, that would help too.
ieatcamaros, can do the math for you.

~The Jester~ · 08-17-2005, 07:44 PM

Another vote for the stick shift! I'm running 4.30's right now, and they're coming out, for a set of 4.56's.

Like IEC said, won't see a whole lotta difference with the 3.73's, so I'd say 3.55 for the daily driver, and he'll still feel it on the ole "azz dyno".

Anyone need a good 4.30? Come to think of it, I have a 4.10 sittin here too.

08-17-2005, 12:59 PM	#1
bigdaddy999 Registered Member Join Date: Aug 2005 Posts: 34	Which Gears to use A buddy of mine has a 86gt with a 3 speed auto. right now he has 4:10's and he hates it. He was wondering which gears would be the best for an everyday driver, and still be ballsy. I told him 3:55's would probably be good, but he thinks 3:73's.Please give me your insight. Thanks

08-17-2005, 03:14 PM	#2
Ieatcamaros Domestic Rice really sucks! Join Date: Apr 2002 Location: KY Posts: 973	Re: Which Gears to use Well if he hates it with the 4.10's, he won't like 3.73's either. With a 26" tire and assuming this is a c-4 were talking about here, at 60 mph in high gear he is turning 3180 RPM. Switching to 3.73's will only drop them to 2982 RPM. Switching to 3.55's will drop the RPM's to 2753. I think the 3.55's will be his best bet. I think the 3.27's would be too tall, but that's my opinion. They would put him at 2536 RPM. Remember all of this is with a 26" tire and a c4 transmission. __________________ The sig says it all.

08-17-2005, 06:05 PM	#3
82 GT Import Slayer Join Date: May 1999 Posts: 2,241	Re: Which Gears to use If he switches to a 16 or 17 inch tire, that would help too. ieatcamaros, can do the math for you. __________________ '82 GT 351W (.060)Comp Cams 274* Extreme Energy cam, ported & polished heads w/ 1.94/1.60 valves 10.3:1 flat top pistons,stealth intake, Mallory dizzy,Holley 750dp carb, BBK shorties,Flowmaster exhaust,C-4 with 3700 stall converter, B&M pro shifter,8.8 rear, 4:10's, subframes, electric fan, powermaster alternator, 4 core radiator.

08-17-2005, 07:44 PM	#4
~The Jester~ Rat Killer Join Date: Aug 2002 Location: Cold ass Ohio Posts: 1,143	Re: Which Gears to use Another vote for the stick shift! I'm running 4.30's right now, and they're coming out, for a set of 4.56's. Like IEC said, won't see a whole lotta difference with the 3.73's, so I'd say 3.55 for the daily driver, and he'll still feel it on the ole "azz dyno". Anyone need a good 4.30? Come to think of it, I have a 4.10 sittin here too. __________________ d-Con Racing "Nothing fancy, just 347 inches of RAT POISON!" MICE need not apply..... Last edited by ~The Jester~; 08-17-2005 at 08:37 PM..

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