i think you would be around 2520rpm at 70mph with 28" tire 4.30 gears and about 2410rpm with 410s.Originally Posted by Green Machine
i think you would be around 2520rpm at 70mph with 28" tire 4.30 gears and about 2410rpm with 410s.
1982 c10 lsx swaped, NP tuned, true duals, 4:11s, trutrac, e-fans, CAI
According to gps I'm turning about 2400 at 70mph. my tach goes up in 500rpm increments. my tire diameter is 32''
5.3 2wd upgrades: Nelson tune, stainless lt's, magnaflow, e-fans, msd's, cai.
got the pcm yesterday swapped it this morning, took about 10mins to swap, fired right up! thanks Allen.
soooo did u take it on the highway? get on it at all? what rpms you spinning? how does it feel?
06ccsb, cammed, stalled, geared
Have someone film u from a roll to wot I wanna see how alive ur truck cam with those gears...
its not a night and day difference, its an improvement. My truck came w/3.73's, im sure the guys that are swapping from 3.42's feel more of a gain. From a dead stop, It takes off better when you put it to the wood, driving around town feels the same, 70mph is 2,400 from 2,100. however, it will occasionally chirp second- but i also am ridin' dirty on the black ''16 spare. I make it beg for mercy all the time. Main thing is this truck doesn't make good power till 3,000rpm's a converter would complement these gears nicely. Maybe do a vid this afternoon
Last edited by sloCaddy; 09-04-2011 at 09:21 AM.
Hit up Circle D!!
06ccsb, cammed, stalled, geared
What trans do u have?
2000*GMC longtubes nelson tune, built trans,trutrac circle d 278 mm stall 373 posi,100 shot of dope and 228 232 588 595 cam.
Ya stall always helps
Stalls r fun I did my circle d this past March. I was having so much fun I for got about my stock g 80,and it went boom!
2000*GMC longtubes nelson tune, built trans,trutrac circle d 278 mm stall 373 posi,100 shot of dope and 228 232 588 595 cam.
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