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-   -   722.5 trans ratios. and diff ratio on 94 320 (http://www.peachparts.com/shopforum/showthread.php?t=65379)

billymueller 05-20-2003 11:46 AM

722.5 trans ratios. and diff ratio on 94 320
 
I've searched everywhere and can't seem to locate the ratios of the trans and rear end on a 1994 s320. Anyone have them? Just trying to fiqure what the the rpm's should at 60 mph in 5th gear. Thanks in advance for your time.

mbdoc 05-20-2003 01:46 PM

1st gear is 3.87/1
2nd gear is 2.24/1
3rd gear is 1.44/1
4th gear is 1/1
5th gear is 0.75/1
Reverse is 5.58/1
The rear axle ratio is 3.46/1 after 8/93

jp928 12-10-2006 04:05 AM

Any chance the 722.5 works would fit in a Porsche 928 4 speed casing...and work?
tks,
jp

C32AMG 12-10-2006 11:25 AM

Quote:

Originally Posted by billymueller (Post 403747)
I've searched everywhere and can't seem to locate the ratios of the trans and rear end on a 1994 s320. Anyone have them? Just trying to fiqure what the the rpm's should at 60 mph in 5th gear. Thanks in advance for your time.

2100 rpms on cars with a 3.69 ratio and 2200rpms with a 3.46 ratio.


jp928

928s use a transaxle, a 722.5 transmission will not fit, fifth gear is electronic controlled, unless you what to spend thousands for a conversion with a weaker transmission with no performance gains; it’s not worth it.

Lowflyingbird 03-14-2011 09:07 PM

WHERE WOULD I FIND....
 
That 3.69 rear ratio in a diff. that would bolt into my S320? It could be from a different model car or diesel, I don't care.
Please post

tinchariot 11-24-2011 08:14 PM

722.5 in a 190DT
 
HI All
Just picked up a 722.5 Trans (in need of a rebiuld) was thinking about installing it in my 1987 190DT.
Have plans upon swapping in the diff from a 190e16V. Either the 3.07 or 3.27 or lower
I think the lower gear ratio combined with an overdrive gear it should perform much better!
Have the 16v sway bars and front brakes with drilled rotors on all 4 corners with 6X16 AMG Penta wheels (1986 vintage) 205/55/16, SPA boost/EGT gauge in 16V counsel gauge set, 16V fuel tank.

Some issues:
converting trans to a speedo cable and controlling 5 gear lock up (maybe a floor shifter with the "B" gear lock up and a push botton switch for overdrive?)

Any advice?

All So:

WTB a set of injectors for the OM602 (with threads on the bottom) and an IP pump (both need to be at a reasonable price I am car poor - have too many of those thangs!!!)


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