8spd transmissions? What do y'all think
10-30-2014, 10:00 AM
#11
Below is the effecive gear ratios through the transmission gear and rear end gear. Even with tall 3.23 gears the 8l90 has the 6l80/3.73 covered in all but the first gear
Trans-8l90----8l90----6l80----6l80
ratio--3.23----3.42----3.42----3.73
Gear
1----14.70---15.57---13.78---15.03
2----9.46----10.02----8.07----8.80
3----6.70-----7.09----5.23----5.71
4----5.46-----5.78----3.93----4.29
5----4.10-----4.34----2.91----3.17
6----3.23-----3.42----2.29----2.50
7----2.74-----2.90
8----2.10-----2.22
Trans-8l90----8l90----6l80----6l80
ratio--3.23----3.42----3.42----3.73
Gear
1----14.70---15.57---13.78---15.03
2----9.46----10.02----8.07----8.80
3----6.70-----7.09----5.23----5.71
4----5.46-----5.78----3.93----4.29
5----4.10-----4.34----2.91----3.17
6----3.23-----3.42----2.29----2.50
7----2.74-----2.90
8----2.10-----2.22
Last edited by PSM; 10-30-2014 at 10:05 AM.
10-30-2014, 10:46 AM
#12
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What don't I like? Ummm well the sliding back glass has quit working. The front passenger side window quit working. When I had the Rousch it was limited to 100mph....thanks but I don't need a speech either on what is safe road speeds. If you buy the Rousch that f......er should run 140 anytime you wanted...just saying. Also you couldn't power brake it unless you wanted it to wheel hop. The ONLY reason I got the Ford is due to the air vents pointing at my boys.
I don't really want to be a beta tester for the 8-spd and I feel like it would be searching constantly for the right gear.
Camcamaro...Looks mostly like it’s made for city driving and getting under way with heavier loads, towing and cursing will be about the same, but the L86 6.2 has more power it should be a good comb
Yeah, I'd probably do the same amount of cursing. Sometimes even worse than usual.
I don't really want to be a beta tester for the 8-spd and I feel like it would be searching constantly for the right gear.
Camcamaro...Looks mostly like it’s made for city driving and getting under way with heavier loads, towing and cursing will be about the same, but the L86 6.2 has more power it should be a good comb
Yeah, I'd probably do the same amount of cursing. Sometimes even worse than usual.
10-30-2014, 05:57 PM
#13
I know where you are coming from gonzo... but the fact of the matter is that with 3.42's and an 8 speed your first gear is SHORTER than 3.73 with the 6 speed. Whats most important is the realized final drive ratios more so than actual axle gear. It would be the equivalent of having 3.73 with the 6 speed and tacking on another gear to have even less RPM when unloaded on the highway.
A lot of states I guess doesnt have long pull mountain grades
10-31-2014, 01:03 AM
#15
TECH Veteran
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I can tell you that my 4:56 6L80 pulled to the top of pikes peak and red mountain pass in Colorado and a few others heading to telluride silverton and Ouray pulling a 22 foot flatbed loaded down with a scrambler and tons of tools and spare parts without breaking a sweat. It's pulled my jeep up there 4 years in a row and never disappointed. But I passed more than a few overheated 1/2 4wd 5.3 6L80E's pulling campers up the same way I was heading and one denali which is limited to 3:42's.
I did the same trip with stock 3:73's and it did pretty good but my first trip up in this truck in 10 is what prompted me to change it to 4:56's
I did the same trip with stock 3:73's and it did pretty good but my first trip up in this truck in 10 is what prompted me to change it to 4:56's
Last edited by 01WS6/tamu; 10-31-2014 at 01:10 AM.
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