3.07 rear good for performance???
Le Mans Master
Joined: Sep 2000
Posts: 6,303
Likes: 714
From: Bartlett IL
Re: 3.07 rear good for performance??? (ROME)
I have 3.07's on my Xfire as the original rear with the Z51 option. I just finished TRANS-planting a ZF6 in place of my 4+3. I also have 11" ZR-1 wheels on the rear and still have a problem not smoking the tires at any rpm above 1200.
Team Owner
Joined: Sep 2001
Posts: 62,160
Likes: 1,733
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Re: 3.07 rear good for performance??? (tobijohn)
What does PE stand for? Thanks...
Le Mans Master
Joined: Feb 2002
Posts: 7,858
Likes: 2
Re: 3.07 rear good for performance??? (1985vette)
Richmond makes a set of 3:54 or 3.55's that fit in the series two carrier that the 2.59 Dana 36 differential has.
how much would a swap out from 2.59 to 3.54 cost?
Bench Racer
Joined: Feb 2003
Posts: 4,201
Likes: 15
From: Palm Beach Gardens FL
St. Jude '03 thru 14,'25
Re: 3.07 rear good for performance??? (1985vette)
how much would a swap out from 2.59 to 3.54 cost?
Drifting
Joined: Jun 2002
Posts: 1,305
Likes: 11
From: Savannah Ga.
Re: 3.07 rear good for performance??? (Lone Ranger)
--------------------------------------------------------------------
QUOTE...[ how much would a swap out from 2.59 TO 3.54 -- --------------------------------------------------------------------
:nonod: YOU ARE THROWING GOOD MONEY AFTER BAD.....UP-GRADE TO A DANA 44....SAVE YOUR MONEY FOR THAT...GOING TO 3.54s IS LOT MORE COSTLY THAN YOU THINK! WITH OUT A TRANNY COOLER THE TRANS WILL GO IF YOU DON'T MAINTAINE IT OFTEN!! IT'S FRIED WITHOUT A COOLER!.....THE DANA 36 WILL BE ON BORROWED TIME ONCE YOU SEE THE NEED FOR TORQUE CONVERTER .....THE LAUNCHS WITH 3.54s ON STREET TIRES ARE INCONSISTENT SOMETIMES YOU LAUNCH HALF WAY DECENT , MOST TIMES YOU DON,T....RUN DRAG RADIALS FOR TRACTION AND YOU,RE DONE...MINE BLEW ON STREET TIRES THE FIRST TIME THEY HOOKED -UP $400 -$500 FOR A MIRE SWAP IS NOT GOING TO SATISFY THE NEED FOR MORE! BUT $500 OR SO WIL GET YOU THAT MUCH CLOSER TO A DANA 44.....OR GO WITH 3.07S AND REST EASIER WHEN YOU PUNCH IT!
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Re: 3.07 rear good for performance??? (tobijohn)
WOW! I'm still deaf from all that shouting. Not you, tobijohn, Redcorvettedave.
I agree on the installation of the gears into the diff, but he can save some good coin by doing his own R & R on the diff.
RACE ON!!!
[Modified by CFI-EFI, 6:12 PM 2/21/2004]
It's a job that requires experience and special tools so unless you've got both, figure on paying someone to do it...
RACE ON!!!
[Modified by CFI-EFI, 6:12 PM 2/21/2004]
Drifting
Joined: Jun 2002
Posts: 1,305
Likes: 11
From: Savannah Ga.
Re: 3.07 rear good for performance??? (CFI-EFI)
QUOTE..[ WOW! I'm still deaf from all that shouting. Not you, tobijohn, Redcorvettedave.------------------------------------------------------------
SPEAK-UP SONNY .....I CAN'T HEAR YOU! ....WHY ARE YOU WHISPERING :sleep: :lolg:
SPEAK-UP SONNY .....I CAN'T HEAR YOU! ....WHY ARE YOU WHISPERING :sleep: :lolg:
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Bench Racer
Joined: Feb 2003
Posts: 4,201
Likes: 15
From: Palm Beach Gardens FL
St. Jude '03 thru 14,'25
Re: 3.07 rear good for performance??? (redcorvettedave)
So Screamin' Dave, you're running a PE catback, no cats, 3.07s and a 2600 stall TC right? Any engine mods? What kind of 0-60ft, 0-60mph, 1/4 mile times are you getting with your current setup? Thanks...
[Modified by tobijohn, 9:01 PM 2/21/2004]
[Modified by tobijohn, 9:01 PM 2/21/2004]
Drifting
Joined: Jun 2002
Posts: 1,305
Likes: 11
From: Savannah Ga.
Re: 3.07 rear good for performance??? (tobijohn)
I have not gone to the track yet....the only thing i can gauge my set up on is it's street performance....and seat of the pants......where i live the LS1 boys rule...carmaros... corvettes...etc. and some 5.0 stangs....I was loosing every race until i started doing my homework.... my motor is stock....with just minor mods.that i don't even consider, like an air flare( air foil ) and granatelli maf....I reset my computer once a week when i figure it has adjusted for the granatell maf....I can honestly say....if the LS1s are stock.. I,ll take them...with that said ..I'v got to be running mid to low 13's....PEACE!!
P.S. 1.7 roller rockers are next...with harden pushrods and guideplates and better springs.... :flag
[Modified by redcorvettedave, 1:55 AM 2/22/2004]
[Modified by redcorvettedave, 2:02 AM 2/22/2004]
P.S. 1.7 roller rockers are next...with harden pushrods and guideplates and better springs.... :flag
[Modified by redcorvettedave, 1:55 AM 2/22/2004]
[Modified by redcorvettedave, 2:02 AM 2/22/2004]
Intermediate
Joined: Jun 2017
Posts: 38
Likes: 8
From: The Plains oh
I hope you guys are still alive😁
This site has so much knowledge I hope everyone shares it on these sites! I have inherited a 92 convertible automatic and it has the GM1 rpo. Can I not go to a 3.05 from the 2? I am retired from the military and would like to take trips with my wife but I'm not gonna lie... I'd like to bark a little like my Z's did. Thanks!!
Racer
Joined: Apr 2021
Posts: 254
Likes: 60
From: Michigan
The 3.07 has a decent snap at low end (versus the 2.59) and is still good for cruising with only 4 gears in the 4L60.
However, if you want to drag and don't care about fuel economy you should pump up to a 4.11 rear end. It makes the Corvette come alive!!!
(BTW: My 93 with 2.59 is boring as hell but gets 28mpg. My 94 with a 3.07 is fun, but my 95 with the 4.11 is insane fast.)
You can see how quick the 4.11 rear end accelerates here...
However, if you want to drag and don't care about fuel economy you should pump up to a 4.11 rear end. It makes the Corvette come alive!!!
(BTW: My 93 with 2.59 is boring as hell but gets 28mpg. My 94 with a 3.07 is fun, but my 95 with the 4.11 is insane fast.)
You can see how quick the 4.11 rear end accelerates here...
Intermediate
Joined: Jun 2017
Posts: 38
Likes: 8
From: The Plains oh
Thanks!
The 3.07 has a decent snap at low end (versus the 2.59) and is still good for cruising with only 4 gears in the 4L60.
However, if you want to drag and don't care about fuel economy you should pump up to a 4.11 rear end. It makes the Corvette come alive!!!
(BTW: My 93 with 2.59 is boring as hell but gets 28mpg. My 94 with a 3.07 is fun, but my 95 with the 4.11 is insane fast.)
You can see how quick the 4.11 rear end accelerates here...
https://youtu.be/hAFjmNrLTes
However, if you want to drag and don't care about fuel economy you should pump up to a 4.11 rear end. It makes the Corvette come alive!!!
(BTW: My 93 with 2.59 is boring as hell but gets 28mpg. My 94 with a 3.07 is fun, but my 95 with the 4.11 is insane fast.)
You can see how quick the 4.11 rear end accelerates here...
https://youtu.be/hAFjmNrLTes
