Transmissions and Drivetrain Need help with your trans? Problems with your axle?

what are my gear ratios???

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Old Jul 2, 2001 | 01:25 AM
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1991tealRSt-topGuy's Avatar
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Car: 1991 Corvette Coupe
Engine: L98
Transmission: 700R4/4L60 same trans different name
what are my gear ratios???

my camaro is a 1991 v6 with a T5

what are my gear ratios???
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Old Jul 3, 2001 | 07:00 AM
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1991tealRSt-topGuy's Avatar
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Car: 1991 Corvette Coupe
Engine: L98
Transmission: 700R4/4L60 same trans different name
any body know??
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Old Jul 3, 2001 | 02:20 PM
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ws6formula89's Avatar
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Manual Standard Rear-end Ratio was 3.42.

-ws6formula-

------------------
1989 Pontiac Formula WS6
69,000 miles.
------------------------
305 TBI, 4.10 gears, SLP Zexel/Torsen Limited Slip Differential, 700r4 Corvette Servo, LT4 Hot Cam/Valvesprings, GM Aluminum Driveshaft, 2700 RPM Stall, Edelbrock Performer RPM intake manifold, Turbocity TB. Ran on 6-19-2001 again: UPDATED: 14.1 @ 97.68 mph. Dyno'd Bone Stock @ 172.6 rwhp, 266 ft-lbs. of rw-torque.
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Old Jul 4, 2001 | 12:13 AM
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1991tealRSt-topGuy's Avatar
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Car: 1991 Corvette Coupe
Engine: L98
Transmission: 700R4/4L60 same trans different name
hmmmmm well i knew the rear......but what about my tranny gear ratio's ???
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Old Jul 4, 2001 | 01:46 AM
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ws6formula89's Avatar
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Well, it's the same tranny that the V8s have too, so you might want to ask for gear ratios for the t5 in general.

I think 1st gear was 2.97, but I could be mistaken. Any more input guys?

I can search my diagnostic software for stuff like that and manuals and stuff, so I will get back to you on that.

-ws6formula-

------------------
1989 Pontiac Formula WS6
69,000 miles.
------------------------
305 TBI, 4.10 gears, SLP Zexel/Torsen Limited Slip Differential, 700r4 Corvette Servo, LT4 Hot Cam/Valvesprings, GM Aluminum Driveshaft, 2700 RPM Stall, Edelbrock Performer RPM intake manifold, Turbocity TB. Ran on 6-19-2001 again: UPDATED: 14.1 @ 97.68 mph. Dyno'd Bone Stock @ 172.6 rwhp, 266 ft-lbs. of rw-torque.

[This message has been edited by ws6formula89 (edited July 03, 2001).]
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Old Jul 4, 2001 | 08:23 AM
  #6  
1991tealRSt-topGuy's Avatar
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Car: 1991 Corvette Coupe
Engine: L98
Transmission: 700R4/4L60 same trans different name
well if it is the same as the v8's, would putting a 6 speed in my V6 camaro kill performance or help it???
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Old Jul 5, 2001 | 12:47 AM
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Well, I think you could put some crazy rear gear ratio [4.56] with the T56 and get that od that it offers and then get decent mileage too. Sure, if you feel like spending big buxx on a T56 on a V6, go for it. But you could also build a awesome 350 for about that much. In other words, it would be worth much more of your time and money just to swap to a 350/T-5. But if you want to T56 a v6 more power to you. I like crazy customs. Try to get some mad power then send me some pics. I don't think anyone has tried a T56/v6 combo before. I think it would be cool. I don't know, put it on the bottle, and take it racin' or cruisin'! I don't care if the car has a v6 or v8 in it, they are just so darn fun to cruise in. I say don't worry about slow time slips, f-bodys are great cruisers.
[Nitrous would be cool for the strip though.] Get some short gears and bald tires and go have fun.

-ws6formula-

------------------
1989 Pontiac Formula WS6
69,000 miles.
------------------------
305 TBI, 4.10 gears, SLP Zexel/Torsen Limited Slip Differential, 700r4 Corvette Servo, LT4 Hot Cam/Valvesprings, GM Aluminum Driveshaft, 2700 RPM Stall, Edelbrock Performer RPM intake manifold, Turbocity TB. Ran on 6-19-2001 again: UPDATED: 14.1 @ 97.68 mph. Dyno'd Bone Stock @ 172.6 rwhp, 266 ft-lbs. of rw-torque.
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Old Jul 5, 2001 | 10:17 PM
  #8  
1991tealRSt-topGuy's Avatar
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Car: 1991 Corvette Coupe
Engine: L98
Transmission: 700R4/4L60 same trans different name
hmmmmm....welli have i have to research this then.........cuz i am gonna be putting in a worked 3.4 liter 6 to replace the 3.1

it will prolly have about 250 HP dry and about 350 with nitro

thanx for the info though, i just wanted to make sure a 5 speed wouldnt hurt my performance, now i know that it is something to consider
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Old Jul 6, 2001 | 10:41 AM
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Omega's Avatar
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From: Northern NJ
Car: 89 Formula / 09 G8
Engine: LS1 / LS3
Transmission: M6 / M6
Axle/Gears: 3:42 / 3:27
I don't think the T-56 will bolt up, i think it has a different bolt pattern. Also, i doubt you will be able to use the 6th gear. It is a VERY low gear for economy, i don't know if your V6 will have enough power at crusing speed to keep the car going without bogging. You might be able to get away with it though. You could figure it out mathmatically but i don't know the formulas.

------------------
  • 89 Formula 305 WS6
    SFC's, LCA's, Air Foil
    Spohn Panhard Bar
    Flowmaster Cat Back, Tranny Cooler
    A/F Ratio Meter (not a mod but it sure spurs interest)
    Trans Temp Gauge
    Most "Free" Mods
    3:73, Zexel Torsion Posi
  • 90 Eagle Talon 2.0
    (Winter Beater)
    Mods? Um, no
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Old Jul 6, 2001 | 10:46 AM
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Omega's Avatar
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From: Northern NJ
Car: 89 Formula / 09 G8
Engine: LS1 / LS3
Transmission: M6 / M6
Axle/Gears: 3:42 / 3:27
Here are your gear ratios for ya:

1st: 3.75
2nd: 2.19
3rd: 1.41
4th: 1.00
5th: .72

These are the ratios for a T-56

1st: 2.66
2nd: 1.78
3rd: 1.30
4th: 1.00
5th: 0.74
6th: 0.50

Notice the steep 6th gear? Thats what concerns me.

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Old Jul 6, 2001 | 12:29 PM
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Yeah, that is true guys, but he is planning on having 250 horsepower out of it. It can be done but will cost some money. I think they sell lakewood bellhousings for v6s, you could have a good chance bolting it up to that bellhousing. I think you can't bolt it up to your stock v6 bellhousing. But 250 horsepower with a shorter gear can definitely handle that much overdrive.

-ws6formula-

------------------
1989 Pontiac Formula WS6
69,000 miles.
------------------------
305 TBI, 4.10 gears, SLP Zexel/Torsen Limited Slip Differential, 700r4 Corvette Servo, LT4 Hot Cam/Valvesprings, GM Aluminum Driveshaft, 2700 RPM Stall, Edelbrock Performer RPM intake manifold, Turbocity TB. Ran on 6-19-2001 again: UPDATED: 14.1 @ 97.68 mph. Dyno'd Bone Stock @ 172.6 rwhp, 266 ft-lbs. of rw-torque.

[This message has been edited by ws6formula89 (edited July 06, 2001).]
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Old Jul 6, 2001 | 01:28 PM
  #12  
Omega's Avatar
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From: Northern NJ
Car: 89 Formula / 09 G8
Engine: LS1 / LS3
Transmission: M6 / M6
Axle/Gears: 3:42 / 3:27
I am sure that 250 HP is possible, but thats peak. He needs to make sure that the amount of torque the engine puts out will be enough when he is crusing. Its like going from 1st to 5th at a low speed, you just don't do it because the engine doesn't make enough power at that speed to do anything.
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Old Dec 20, 2001 | 10:13 PM
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1991tealRSt-topGuy's Avatar
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Car: 1991 Corvette Coupe
Engine: L98
Transmission: 700R4/4L60 same trans different name
ok guys, after taking my tranny class in college, i learned alot


i think if i was to bolt up the T56 to my V6, i would be able to use a 4.82 rear gear

as what would matter is the TOTAL gear ratio......that is the rear gear multiplied by the tranny gear you are in

here's my current setup:

3.75 3.42 12.83
2.19 3.42 7.49
1.41 3.42 4.82
1.00 3.42 3.42
.72 3.42 2.46

here's a T56 with a 4.82 rear gear:

2.66 4.82 12.82
1.78 4.82 8.57
1.30 4.82 6.27
1.00 4.82 4.82
.74 4.82 3.57
.50 4.82 2.41

so first gear would be the same
and 2nd through 5th i would get a nice improvement
and in 6th i would retain a nice overdrive

and i heard of a custom adapter plate to mount a T5 bellhousing to a T56........so all i else i would need to really adapt is the clutch hub............i would need to replace the clutch hub on my clutch with one that is a 26(?) spline hub........
that and get a crossmember, and my driveshaft shortened...................

all in all, if i do swap in the 3.4 engine, i will DEFINETLY look into this....................


another thing: what size (7.5?) and how many bolt (10?) is a posi/disc rear end from a 3rd gen.............cuz i will have to make sure that the 4.82 (or something similar) gear ratio is available for it, becuz i want to swap in a Posi/Disc rear end into my car

just for kicks lets see the equivelant of a 4.11 gear in the rear would be: in this case it would be a 5.79 rear gear in equation to a T5 with a 4.11:

2.66 5.79 15.4
1.78 5.79 10.31
1.30 5.79 7.527
1.00 5.79 5.79
.74 5.79 4.28
.50 5.79 2.90

all in all that would still be a decent overdrive and that'd be some nice a$$ accleration..................................


this might become my project............
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Old Dec 20, 2001 | 10:33 PM
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From: The State of Hockey
Car: 1987 Trans Am GTA
Engine: Miniram'd 383, 24X LS1 PCM
Transmission: TH700R4, 4200 stall
Axle/Gears: 9", 4.33:1
I see you are an ASEP student....... I am an ASEP grad and there are a few other ASEP-grads lurking around here......

Laterzzzzz
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Old Dec 20, 2001 | 11:27 PM
  #15  
1991tealRSt-topGuy's Avatar
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Car: 1991 Corvette Coupe
Engine: L98
Transmission: 700R4/4L60 same trans different name
Originally posted by Matt87GTA
I see you are an ASEP student....... I am an ASEP grad and there are a few other ASEP-grads lurking around here......

Laterzzzzz
cool bro

and to think i almost went to school for law or accounting

working on cars all day is really cool

so i figured i can have fun and make a living doing it

speaking of which i need to get down to the dealers and get my internship set up


ttyl
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Old Mar 17, 2002 | 11:28 PM
  #16  
u r sofa king we tah did's Avatar
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From: texas
if im not mistaken, the t5 for the v6 had different gear ratios than the v8 t5 due to the difference in torque. i think they were steeper.
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Old Mar 17, 2002 | 11:52 PM
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You must have been bored to dig up this post
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Old Mar 18, 2002 | 05:07 AM
  #18  
1991tealRSt-topGuy's Avatar
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Car: 1991 Corvette Coupe
Engine: L98
Transmission: 700R4/4L60 same trans different name
Originally posted by u r sofa king we tah did
if im not mistaken, the t5 for the v6 had different gear ratios than the v8 t5 due to the difference in torque. i think they were steeper.
correct
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Old Mar 18, 2002 | 11:54 PM
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u r sofa king we tah did's Avatar
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From: texas
very bored.
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Old Mar 19, 2002 | 01:32 AM
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From: Changing Tires
Car: too many ...
i think you would have more fun if you swapped in a 350 and left the t5.
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Old Mar 19, 2002 | 05:09 AM
  #21  
1991tealRSt-topGuy's Avatar
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Car: 1991 Corvette Coupe
Engine: L98
Transmission: 700R4/4L60 same trans different name
Originally posted by CrazyHawaiian
i think you would have more fun if you swapped in a 350 and left the t5.
cool idea

but this was an old post b4 i bought my Z28
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