Skip to main content ↑ ↓
Topic: Who here runs an AOD with 3.73 gears? (Read 1974 times) previous topic - next topic

Who here runs an AOD with 3.73 gears?

If you run this combo in your ride, what kind of RPM's are you turning at 65 MPH?  How about 55 MPH also?  Thanks in advance guys.
William

Who here runs an AOD with 3.73 gears?

Reply #1 –
I did till I swaped to a t5, in od at 70 it was 2600 about 2800 in 3rd, not sure how accurate my speedo was though.
Old Grey Cat to this.88 Cat, 5.0 HO, CW mounts, mass air, CI custom cam, afr165's, Tmoss worked cobra intake, BBK shorty's,off road h pipe, magnaflow ex. T-5,spec stage 2 clutch, 8.8 373 TC trac loc, che ajustables with bullits on the rear. 11" brakes up front. +

Who here runs an AOD with 3.73 gears?

Reply #2 –
With 205/70 tires....ummm....like 2600 @ 80 mph, 2100 maybe 2200 @ 70. I got the digi-dash so its in increments of 200 rpm so yeah best guess ya know lol but I honestly dont know exactly what it is at 60/65, as you can probably imagine by the figures I gave Im terrible out there hahahhaha
1987 20th Anniversary Cougar, 302 "5.0" GT-40 heads (F3ZE '93 Cobra) and TMoss Ported H.O. intake, H.O. camshaft
2.5" Duals, no cats, Flowmaster 40s, Richmond 3.73s w/ Trac-Lok, maxed out Baumann shift kit, 3000 RPM Dirty Dog non-lock TC
Aside from the Mustang crinkle headers, still looks like it's only 150 HP...
1988 Black XR7 Trick Flow top end, Tremec 3550
1988 Black XR7 Procharger P600B intercooled, Edelbrock Performer non-RPM heads, GT40 intake AOD, 13 PSI @5000 RPM. 93 octane

Who here runs an AOD with 3.73 gears?

Reply #3 –
http://www.f-body.org/gears/

Standard AOD ratios:
1st:  2.4
2nd:  1.48
3rd:  1.0
4th:  0.67
-- 05 Mustang GT-Whipplecharged !!
--87 5.0 Trick Flow Heads & Intake - Custom Cam - Many other goodies...3100Lbs...Low12's!

Who here runs an AOD with 3.73 gears?

Reply #4 –
60mph in OD was just a hair over 2000rpm.
Project 3G: Grandpa Grocery Getter-'85 Crown Vic LTD 2-door, 351W with heavily ported/polished GT40 heads, heavily ported/polished Typhoon Power Plus upper & lower intake, Comp Cams 265DEH retarded 1*, FAST EZ-EFI, HD T5, 8.8" 3.73 trac lock with extra clutches, 3G alt. swap, '99 CVPI front brakes, '09 CVPI rear disc brakes, '00 CVPI booster&m/c + wilwood adj prop valve.

Parted & Gone-'88 T-bird Sport, 351W swap, ported GT40 heads

Who here runs an AOD with 3.73 gears?

Reply #5 –
my speedo is about 5-6 mph off but it should be around 2000 at 60 or so.
'88 'bird, 10.9:1 306 w/TFS top end, forged rods/pistons, T-5 swap & bunch of other stuff, 1-family owned, had it since ‘98, 5.0tbrd88 on Instagram and YouTube

Thanks guys

Reply #6 –
That's just the info I needed.  :D
William

Who here runs an AOD with 3.73 gears?

Reply #7 –
Quote from: Sick88Tbird;234381
60mph in OD was just a hair over 2000rpm.


Your sig says you're running a 2.73:1 rear gear.  :dunno:
William

Who here runs an AOD with 3.73 gears?

Reply #8 –
I'm all screwed up now.  Some guys are saying they're turning around 2000 RPM's and some are saying they're turning around 2600 at 60-65 mph.  :giggle:
William

Who here runs an AOD with 3.73 gears?

Reply #9 –
Quote from: V8Demon;234362
http://www.f-body.org/gears/

Standard AOD ratios:
1st:  2.4
2nd:  1.48
3rd:  1.0
4th:  0.67


I tried that site, but for some reason, it won't do the calculation for me.  :punchballs:
William
 

Who here runs an AOD with 3.73 gears?

Reply #11 –
If I went with a direct-drive AOD (lock-up), that calculator says I'd be turning about 2000 RPM's at 65 mph.  Since I'll probably go with a non direct-drive converter, I'll probably be turning around 2100-2200 RPM's at 65 mph when you factor in the slippage of the converter.  That's still not bad.  I'll just have to make sure I have a properly sized tranny cooler.
William