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05-26-2005, 06:18 PM
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#1
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I will beat you with a toaster!
Join Date: Sep 2004
Posts: 6,054
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Time to fix what I broke.
Well the time has come for me to rebuild the rear in the camaro. My biggest dilemma right now is to decide between 3:73's and 4:10's. The car is an A4 and will be possibly getting a stall converter someday (If i keep the car) I dont really care about gas mileage and mostly want out of the hole performance. the car will MAYBE see some track time but not much. I need some input here. What RPM will I cruise at around 80 mph with either gear. The car has 3:23s now. Thanks
Jon
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05-26-2005, 06:34 PM
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#2
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Join Date: Aug 2004
Location: North Jersey
Posts: 3,047
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Assuming a 26" tall tire, 80 mph will probably be just over 2500 rpm. My old '87 SS had 3.73s with a 200-4R (slightly better OD gear than the 4L60E) and that's near what I ran.
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Seeya,
Steve R. in North Jersey
'16 Go-Mango Dodge Charger R/T. It's so good to be back in a V8-powered, RWD car!
Former Toy - '88 Monte SS - had lots of mods...
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05-26-2005, 07:19 PM
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#3
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Queen of Destruction / NJFBOA Supporting Sponsor / Moderator / 12 Second Club / 2006 Member of the Year / PITA
Join Date: Aug 2004
Location: I dunno..
Posts: 8,327
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my camaro has 4:10s, I cruise 75 mph at 3500 with a TH400 trans. Not a very good cruiser, I would love to have a 700 trans.. OD would kick butt
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We're a drinking team with a racing problem.
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05-26-2005, 07:32 PM
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#4
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I will beat you with a toaster!
Join Date: Sep 2004
Posts: 6,054
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yeah i have 4:10's in the chevelle, and turn alot of RPMs. on the way back from Hershey i was turning about 4500 for 20 minutes or so...dont know how fast that is cause i dont have a speedo but that was a LOUD ride home!
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05-27-2005, 08:45 AM
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#5
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Co-Founder / Site Admin
Join Date: Jul 2004
Location: Ewing, NJ
Posts: 22,476
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LittleG, with a similar OD gear in his 5 speed turns approx. 3000 @ 80 w/4.10s.
- Justin
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1999 Camry - Beigemobile DD
2002 Suburban - Wife's DD
2004 Grand Cherokee - Not running / Project / Selling?
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05-27-2005, 09:39 AM
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#6
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BadMod
Join Date: Aug 2004
Location: hamilton, nj
Posts: 8,889
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hmm i cruise down the highway at 1900 at 80mph. with 3.73's
oh wait.....thats 6th gear lol 
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So much stupid, so little time.
Quote:
Originally Posted by 79CamaroDiva
It started before I drove your car. I just have to look at it the wrong way and your car poops parts.
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Mercerville MotorSports, LLC
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05-27-2005, 10:47 AM
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#7
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Join Date: Aug 2004
Location: Somerset County
Posts: 5,559
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Quote:
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Originally Posted by cbrrmike
hmm i cruise down the highway at 1900 at 80mph. Â*with 3.73's
oh wait.....thats 6th gear lol Â* |
wtf!??
mine does the same...with 3.42s
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1999 Corvette FRC
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05-27-2005, 10:52 AM
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#8
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Join Date: Aug 2004
Location: Somerset County
Posts: 5,559
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and jon...
with 4.10s:
3000rpms at 80
102mph at 5500rpms in third(1:1) gear! 
you'll definately run out of gear at the track
with 3.73's:
2750rmps at 80
113mph at 5500rpms in third(1:1) gear
personally i think your happiest gears will be(if you get that 9") 3.90s:
2900rpms at 80
108mph in third(1:1) gear
hope this helps!
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1999 Corvette FRC
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05-27-2005, 02:28 PM
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#9
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Join Date: Aug 2004
Location: Montgomery NJ
Posts: 1,271
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Depends on the horsepower level and tire height. The faster you go the lower the gear ratio you need so as not to over rev the motor. Example; with a 26" tall tire and 100mph trap speeds 3.73's would be perfect for the motor if redline was in the low 5000's. Trap at 120mph (nitrous) and you'll either be using overdrive, a taller tire, or chucking rods through the block!
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, Jon
Owner of a Red Sled.
If it\'s EFI I can tune it. Specialize in 82-95 GM (yes Lt1\'s)
\"If you can leave black marks on a straight from the time you exit a corner till the time you brake for the next turn.......Then, you have enough horsepower\" - Mark Donohue 
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05-27-2005, 07:51 PM
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#10
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Join Date: Aug 2004
Location: Somerset County
Posts: 5,559
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forgot to mention the above info was for 245/50/16 tires
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1999 Corvette FRC
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05-28-2005, 11:14 PM
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#11
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I will beat you with a toaster!
Join Date: Sep 2004
Posts: 6,054
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Thanks guys, I decided to go with the 3:73's. I will be ordering my crap tomorrow. Gonna watch all my money that was supposed to be for the nova go out the window for the camaro...oh well I guess it will be for the best  I guess the 10 second passes will have to wait. Later!
** Ill get some pics of the destruction once i get the rear out and ripped apart!**
Jon
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05-29-2005, 09:34 AM
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#12
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I will beat you with a toaster!
Join Date: Sep 2004
Posts: 6,054
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ok well brakes, rear components, and some other goodies are on their way. Hopefully in a week or two the stuff will all be here (Brakes on tuesday) and then i can get cracking on this. Ill have the rear out, taken apart, cleaned, and painted so it can all go in and on the car once i get the stuff. Thanks for the help, Ill keep you updated on whats going on. Later!
Jon
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