This is in reference to 1/8 mile and 1/4 mile.

It would be great if you could also post your 60ft times, WHP, and weight of the car. Also what you did (if anything) to the factory rear.

 

Stock everything on a '79 rx7.
118mph on a highway, maxed the car out with what I can do.
I've heard 125 is possible for a '79 but you will need a little more power than what I've got. lol
I'm not sure if I can go any faster.

 

103mph. WHP unknown, weight ~2700lb, 60' suck.

 

At the track I trapped a 121mph with stock GSL-SE rear, did not launch the car.
It was just once and I dont think it would take to many of those pulls down the 1/4 mile.
This was back in 2008-2009 time frame.
If your making serious power than the rear won't last unless it's babied around.
Stock GSL-SE weight, 60ft was like 2.3, unsure about the hp guessing around 370rwhp

.

 

123 on the interstate racing a bmw m3 needless to say i lost in my gsl-se and not to mention scared the hell out of me on 30 year old suspension.

 

my dads 81 rx7 12a with stock gsl rear end ran a 14.9@ 90 cant remember 60 ft times

 

I should have been more specific. I am only really Interested in drag racing times. Highway MPH does not indicate strength or durability.

I ask because my Rx2 has an SE rear. I'm debating if it's worth it to get the Moser axles and do some work to it vs. upgrade it. It's not a strict drag car. But I do enjoy the drag strip over other activities.

 

subscribing as i'd like to know as well. are the axles the weak link of the rear end?

 

yes the axels are weak link and will snap on hard launches. i was doing low 8 1/8 mile times with lots of wheel spin on launch.

 

sub'd

current build is a 1980 with a SBC about 4-425 hp estimate.

running a T-5 (V8-WC), lightened flywheel and alum driveshaft and 245 wide rears.
rear end is an 84 GSL with Mosler axles.

yeah, I know i'm pushing it, but I dont' plan on beating/launching on it either.

am curious as to what she'll hold so i don't get too cocky. (I have heard the stock 84/85 rear is good for 375 hp)

 

when i ordered from mosler...and i sent them my axle to measure, the shop guy said they basically use the same axle as a chevy 10 bolt rear end, trimmed a bit of coarse.

but thats a pretty stout rear end.

also keep in mind the higher the gear the easier it is on the rear end and transmission. i.e. a 4.11 gear isn't going to stress the drivetrain as much to get going as a 3.09 or something.

 

About a billion 5-7k launches/ burnouts/ doughnuts @ estimated 140-160 @ the crank