New trans and now some questions.....

[branman444]

I have replaced my tr3650 with another tr3650. With supposedly the stock gears. Now to my questions. I think for some reason the 5th gear is "shorter" keeps my RPMs up higher. I thought when i was cruzing at 80mph my rpms were 2100/2200. Now im at 2600rpms at 80mph. I do a lot of driving at 75+ (interstate) so that is why im using 80. All the other gears seem to be correct just 5th. It seems that 5th is just another gear as what i would think a 6spds 5th gear would be.
Am i crazy? Is that normal RPMs for that gear/speed?
Here are the gears that are in it. 3.37,2.00,1.31,1.0,0.67 R3.37

 

[joeman2199]

im sure someone else will chime in, but didnt the mach 1 t3650 have a different ratio in 5th?

 

[laserstang21]

i think the gearing might be a lil high cause at 69mph i run 2000rpm so i dont think 6 mph is worth 600 rpm.

 

[branman444]

Posted via Mobile Device
here are some rpms/speeds to compare...
35mph @ 2k 3rd
46mph @ 2k 4th
65mph @ 2k 5th
79mph @ 2.5k 5th
92mph @ 3k 5th

 

[rabidscoobie]

On mine at 70 im at 2k and at 75-80 i think i sit around the 2500 mark,Ill have to get on the highway and check....I dont do the highway very often so Im not sure of the exact rpm,but Id you are prob close at 80 to your numbers given.But ill check it out in a bit to make sure,and my tranny and gears are stock.

 

[SaleenGT2001]

the 3650 had a different 5th ratio depending on what year the car was.

i believe they changed the 5th ratio in 2002 IIRC