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#1571326 - 01/30/14 07:12 PM 2.94 rear gears
can.al Offline
pro stock

Registered: 02/21/09
Posts: 1274
Loc: Ontario.Canada
..for those using this gear set,how do you like it.
..long duration cams need not apply.

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#1571327 - 01/30/14 07:16 PM Re: 2.94 rear gears [Re: can.al]
GTX MATT Offline
master

Registered: 06/05/06
Posts: 4766
Loc: CT
Nope, they suck IMO. Even with a stock 440 with 27 inch tall tires they got nothing on 3.55s
_________________________
Now I need to pin those needles, got to feel that heat Hear my motor screamin while I'm tearin up the street

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#1571328 - 01/30/14 07:23 PM Re: 2.94 rear gears [Re: can.al]
MuuMuu101 Offline
I got lucky at Woodward!

Registered: 12/12/10
Posts: 12199
Loc: Covina, Ca
I've got them in my '68 Dart. If you're looking for fun, don't get them. You want gas mileage, they do a pretty good job. I run a tired 273 behind a 904 and an open 7 1/4. I also run a 205/75/14 tire (26 inches tall). Let's just say I was going up a slight hill one time with my foot pegged on the gas and a late 90's Toyota Corolla passed me up. Besides that, I average high teens when it comes to mpg.
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68 Dart GT Project Thread: Linky!

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#1571329 - 01/30/14 08:02 PM Re: 2.94 rear gears [Re: can.al]
469runner Offline
super stock

Registered: 01/07/04
Posts: 1057
Loc: Virginia
Well, I guess I'm the odd man out. I do have 2.94s in my 1970 Roadrunner and think it is a great gear for my combo and how I use the car. Running on the highway it is doable, and I have no problem with acceleration with a stroked 469 engine. In fact I was able to run a 12.48 in the 1/4 mile with this car. 3.55s are fun around town, but not on the highway with the engine screaming 3400 rpm at 60 mph while Hondas and Prius' climb our backs. It all depends on you set-up and how you intend to use the car.

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#1571330 - 01/30/14 08:47 PM Re: 2.94 rear gears [Re: MuuMuu101]
Skeptic Offline
master

Registered: 01/20/03
Posts: 4176
Loc: The Pale Blue Dot
Quote:

I've got them in my '68 Dart. If you're looking for fun, don't get them. You want gas mileage, they do a pretty good job. I run a tired 273 behind a 904 and an open 7 1/4. I also run a 205/75/14 tire (26 inches tall). Let's just say I was going up a slight hill one time with my foot pegged on the gas and a late 90's Toyota Corolla passed me up. Besides that, I average high teens when it comes to mpg.



Your problem isn't the gear ratio. A tired 273 makes less power than a late 90's Corolla-period. Hell, my 68 Barracuda with a tired 318 couldn't spin the tires with a 3:91 sure grip. Things are different now and I'm considering a 2.94 for my tunnel rammed 400. The thing made 472 HP @ 5300/ 489 ft/lbs @ 4700 on the dyno and rolled over @ 5400 rpm. No reason to spin it tight, and it's not a drag car anyhow.
_________________________
"Talking tough is easy when it's other people's evil and you're judging what they do or don't believe" Mike Cooley / Drive-By Truckers Razor and Tie Music (BMI)

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#1571331 - 01/30/14 09:14 PM Re: 2.94 rear gears [Re: Skeptic]
ahy Offline
master

Registered: 01/22/07
Posts: 7433
Loc: IN
I've got 3.23's and 20% OD... about the same as 2.76 with a 1:1 top gear. It works great. It cruises at around 2700@75 MPH. RPM is actually higher than it needs to be for cruising but its nice to have plenty of reserve power without downshift. As posted above, it depends on the combo. This in an E with 496 and moderately big cam (243@.050).

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#1571332 - 01/30/14 09:22 PM Re: 2.94 rear gears [Re: ahy]
Doc Fiberglass Offline


Registered: 07/04/08
Posts: 17475
I like my SHORT gearing ....and you will tooooo .....IF yurr motor has the "stones" to pull said SHORT-gear ...

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#1571333 - 01/30/14 09:29 PM Re: 2.94 rear gears [Re: Skeptic]
mopar346 Offline
Let me tell ya about fat chicks!

Registered: 07/05/07
Posts: 11671
Loc: Florida
My next built is a 71 Charger 500 with a Nascar theme for the highway and I was thinking of running 2.94s or even 2.76s behind a 440. It's an auto so it is my way of getting and overdrive, I figure the 440 should have enough torque to plus it no to mention it wont be a red light racer. But, yes, it will still need to get out of it's own way for me to be happy with it.
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#1571334 - 01/30/14 09:35 PM Re: 2.94 rear gears [Re: 469runner]
GTX MATT Offline
master

Registered: 06/05/06
Posts: 4766
Loc: CT
Quote:

Well, I guess I'm the odd man out. I do have 2.94s in my 1970 Roadrunner and think it is a great gear for my combo and how I use the car. Running on the highway it is doable, and I have no problem with acceleration with a stroked 469 engine. In fact I was able to run a 12.48 in the 1/4 mile with this car. 3.55s are fun around town, but not on the highway with the engine screaming 3400 rpm at 60 mph while Hondas and Prius' climb our backs. It all depends on you set-up and how you intend to use the car.




3400 @ 60 sounds more like 4.30s than 3.55s, how tall are your tires 22 inches?
_________________________
Now I need to pin those needles, got to feel that heat Hear my motor screamin while I'm tearin up the street

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#1571335 - 01/30/14 09:36 PM Re: 2.94 rear gears [Re: Doc Fiberglass]
Grizzly Offline
master

Registered: 08/24/05
Posts: 4746
Loc: at work
2.94's are OEM in my '84 Ram. 318, 2bbl, 833od, and 29" tires.

No probs here, the 3.09 1st grunts it from a stop sign at idle and with the overdrive I'm 1500 rpm out on the highway and getting 20mpg.

Be that much better in one of my old girls and their few hundred horsepower advantage.

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#1571336 - 01/30/14 09:40 PM Re: 2.94 rear gears [Re: Doc Fiberglass]
Frankenduster Offline
Moparts proctologist

Registered: 02/15/10
Posts: 14907
Loc: Granite Bay CA
Quote:

I like my SHORT gearing ....and you will tooooo .....IF yurr motor has the "stones" to pull said SHORT-gear ...



"Mister", you're off your meds again.
SHORT gears are higher numerically. ( 3.91, 4.10, etc )
TALLER gears are lower numerically. ( 2.76, 2.94, etc)


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#1571337 - 01/30/14 10:01 PM Re: 2.94 rear gears [Re: Frankenduster]
dynamite Offline
pro stock

Registered: 01/02/07
Posts: 1382
Loc: NEW JERSEY
I run with the 2;76 gears when I'm going on a trip,,ie; this years Hot Rod Power Tour..with 26 in tire and a stock HP 383..cruises great at 70 about 3k rpm..when the 493 goes back in after the tour the 3:55's go in.I have both gear chunks..just swap them out in the 8 3/4


Attachments
8019218-get-attachment(9).jpg (120 downloads)


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#1571338 - 01/30/14 10:10 PM Re: 2.94 rear gears [Re: dynamite]
can.al Offline
pro stock

Registered: 02/21/09
Posts: 1274
Loc: Ontario.Canada
anyone running a 340 with a short duration cam in a light A body with 2.94's and a bit of a converter?

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#1571339 - 01/30/14 10:13 PM Re: 2.94 rear gears [Re: dynamite]
dvw Offline
master

Registered: 03/16/06
Posts: 6661
Loc: MI, usa
All depends on what kind of power you have. We've been 10.60 w/2.76 and 255/60 radials @3700lbs,10.08 w/3.23 and 275/60 radials.
Doug

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#1571340 - 01/30/14 10:57 PM Re: 2.94 rear gears [Re: GTX MATT]
loren kraker Offline
mopar

Registered: 06/25/07
Posts: 489
Loc: gr mich
Quote:

Quote:

Well, I guess I'm the odd man out. I do have 2.94s in my 1970 Roadrunner and think it is a great gear for my combo and how I use the car. Running on the highway it is doable, and I have no problem with acceleration with a stroked 469 engine. In fact I was able to run a 12.48 in the 1/4 mile with this car. 3.55s are fun around town, but not on the highway with the engine screaming 3400 rpm at 60 mph while Hondas and Prius' climb our backs. It all depends on you set-up and how you intend to use the car.




3400 @ 60 sounds more like 4.30s than 3.55s, how tall are your tires 22 inches?





3.91 are 3000 @ 60mph with n50 tires


Edited by loren kraker (01/30/14 10:59 PM)

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#1571341 - 01/31/14 04:44 AM Re: 2.94 rear gears [Re: Frankenduster]
Doc Fiberglass Offline


Registered: 07/04/08
Posts: 17475
Quote:

Quote:

I like my SHORT gearing ....and you will tooooo .....IF yurr motor has the "stones" to pull said SHORT-gear ...



"Mister", you're off your meds again.my
SHORT gears are higher numerically. ( 3.91, 4.10, etc )
TALLER gears are lower numerically. ( 2.76, 2.94, etc)






Well MisterBERRI .... no lack-o-meds here ... but yurr "statement" is very-much flawed. And I have heard this before and I put out the "bait"(my capping the word SHORT) and you grabbed-it .....

IF what you say is "true" .... then a fat-tire car is limited to a 7" cheater slick. A big-inch motor is limited to a 225 slant six size. on and on and on .......

.....

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#1571342 - 01/31/14 06:57 AM Re: 2.94 rear gears [Re: Doc Fiberglass]
floridian Offline
pro stock

Registered: 08/10/12
Posts: 1574
Loc: Lakeland FL
The car in my pic has 2.94 gears single leg behind the 440 / 727. A great cruising and around town gear in my mind..
I am 58, been all around low geared cars. My A12 car ( when I was a senior in High school) had 4.10 gears.. What a pain...
Sometimes we read too much hot rod magazine and get STREET mixed up with RACING, I know my friends did when we were younger..
Now with that said, I have been thinking about 3.55 gears with a gearvendor od.. That would make my final ratio around 2.70. but that is $4K away...
Overall the 2.94 gears work great on what I do with my car..


Attachments
8019449-5554552-vertbaseball2.jpg (93 downloads)


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#1571343 - 01/31/14 08:06 AM Re: 2.94 rear gears [Re: floridian]
skicker Offline
Pro Stock

Registered: 06/09/05
Posts: 3863
Loc: Western Md.
The rear and 727 in mine were removed from a 68 Charger with 2.94 gears. I have 3.23's in mine but the rear tires are 30" tall. If the Charger came factory with a 26" tire the difference in the gearing would be 24 points. (6 points of gear per 1 inch of tire) That would put me at 2.99 final ratio. According to the speedo which still has the correct speedo gear for the 2.94 in the transmission, I'm only off about a mph or so. Great for the highway but with a near bone stock 8-1 383 with a stock converter its a pig from a stop light. Average MPG is about 18 or 19.


Attachments
8019474-7411915468_118a2a11c5_z.jpg (104 downloads)

_________________________
Loving all the tears... bawling

Sorry Doc...

We'll try again in 4 years...up

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#1571344 - 01/31/14 08:12 AM Re: 2.94 rear gears [Re: floridian]
Grizzly Offline
master

Registered: 08/24/05
Posts: 4746
Loc: at work
Quote:

My A12 car ( when I was a senior in High school) had 4.10 gears.. What a pain...
Sometimes we read too much hot rod magazine and get STREET mixed up with RACING, I know my friends did when we were younger..





Couldn't agree with you more.

Vipers came with 3.07's and it appears to me that they don't seem to struggle with acceleration.

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#1571345 - 01/31/14 05:06 PM Re: 2.94 rear gears [Re: Skeptic]
MuuMuu101 Offline
I got lucky at Woodward!

Registered: 12/12/10
Posts: 12199
Loc: Covina, Ca
Quote:

Quote:

I've got them in my '68 Dart. If you're looking for fun, don't get them. You want gas mileage, they do a pretty good job. I run a tired 273 behind a 904 and an open 7 1/4. I also run a 205/75/14 tire (26 inches tall). Let's just say I was going up a slight hill one time with my foot pegged on the gas and a late 90's Toyota Corolla passed me up. Besides that, I average high teens when it comes to mpg.



Your problem isn't the gear ratio. A tired 273 makes less power than a late 90's Corolla-period. Hell, my 68 Barracuda with a tired 318 couldn't spin the tires with a 3:91 sure grip. Things are different now and I'm considering a 2.94 for my tunnel rammed 400. The thing made 472 HP @ 5300/ 489 ft/lbs @ 4700 on the dyno and rolled over @ 5400 rpm. No reason to spin it tight, and it's not a drag car anyhow.




I will agree with you on that... Big horsepower and a numerically lower gear does sound like a nice combo.
_________________________

68 Dart GT Project Thread: Linky!

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