a) Wanted to know and
b) To have a nice gear ratio for high speed highway cruising without too high RPM
a) Wanted to know andWhy does it matter?
About 300rpm.... PeanutsWhy does it matter?
If you want do 70 mph at red line while cruising on the Hwy be my guess… PeanutsAbout 300rpm.... Peanuts
… RightIf you're at red line in OD at 70mph you're set up wrong... and yes 300rpm ...peanuts
I hear you! I replaced my 2.73’s about 14 years ago and never looked back after I installed the 3.55.I can totally see going through all the fuss if you're trying to cross the line at peak HP in the quarter.
Otherwise... I'm here:
In my 86, I run the stock 2:73s and a T5 (Not sure WC or Z. I bought it new to replace the one I broke). What is the top speed on the highway with that combo? Faster than I am comfortable taking it. I have no idea except that when I got to somewhere around 130, that was enough.
In my mind, I envisioned my Cooper Cobras flying apart like a Slurpee out the car window.
Now, for city/highway driving all around? It's awesome.
Stoplight Warrior wise? I do pretty well with the 2:73s, a stroker, and PD blower. Care must be taken in the first three gears as it will peel if you let it.
Better gripping tires at this point could spell the end of the T5. It's on the list.
Yeah I drove my 90 GT 2k miles with the configuration I described but I didn’t know what was my final 5th gear ratio to find out that I have it a bit too high at .584 versus the .68 stock and .63 with the Z specs T5.My 83 I am working on came with a SROD ( .070 OD 4th gear) and according to the tag on the 7.5" rear, had 3.07 rear end gears...
My sister bought this car in 84 and I drove it occasionally in that time frame.... I can't remember any RPM settings but my mechanic friend and I used to joke it would probably go 150 mph .... It cruised at 90 - 100 effortlessly when I drove it from Oregon to California a few times....
Thats all they were after..... Going through 2 gas shortages 73 & 77 while having the government tell us we were running out of gas, Hondas and Datsuns became the top sellers.. Diesel VW Rabbits were selling for 1K over list price ( that was alot of money then ) with a year waiting list...Those high ratio OD gears were meant to be for fuel economy at least at cruising speeds
My ‘86 GT had the stock 2.73 rear end and T-5 when I took it to be tuned on the dyno. The dyno run showed it went to 149 MPH!I can totally see going through all the fuss if you're trying to cross the line at peak HP in the quarter.
Otherwise... I'm here:
In my 86, I run the stock 2:73s and a T5 (Not sure WC or Z. I bought it new to replace the one I broke). What is the top speed on the highway with that combo? Faster than I am comfortable taking it. I have no idea except that when I got to somewhere around 130, that was enough.
In my mind, I envisioned my Cooper Cobras flying apart like a Slurpee out the car window.
Now, for city/highway driving all around? It's awesome.
Stoplight Warrior wise? I do pretty well with the 2:73s, a stroker, and PD blower. Care must be taken in the first three gears as it will peel if you let it.
Better gripping tires at this point could spell the end of the T5. It's on the list.
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