I am wondering what rpm you guys are at. Post you tire size and rearend ratio. If possible post what 4l80e you have. I heard that the 80e behind the NPR had lower gears than the 80e in silverados.
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I am wondering what rpm you guys are at. Post you tire size and rearend ratio. If possible post what 4l80e you have. I heard that the 80e behind the NPR had lower gears than the 80e in silverados.
im running a 4l80e with a 4k stall and 4:56, runs great
i have 4.56 was going 80e but now 6spd well see how it does..all i know 4.56 were badass on the 60e i ran
I'm running the 80e with 4k stall and 4.10s. 1.68-1.75. Has cut 1.52 on bottle. Truck doesn't 60ft like I want. 29in tall tire I cruise 70 at 2200 rpms though.
WHat rpm are you at say at 70mph?Quote:
Originally Posted by Ray@NP
so u get an idea i was at 3,000 rpm at 75mph...3200 stall/4.56 gears//4l60e 28' tall tire
80e with 3.42's and 28" tall DR is 2000 at 70
80e , 3.73, 30.45" tire, 19xxrpm at 70, 146mph@6000 rpm at 3rd gear top speed
Just ordered a set of 4.11, will report as soon as I install them !
80eout of a 05 hd, 3200 stall 4:11 gears 65-70 at 2500rpms, hit 152mph and still had overdrive, top speed is unknown
But at what rpms are you guys at the 1/4 mile mark? Im at around 5700rpm with 3600 stall, 31" tire 4.11's so I defenetly need 4.56's