Pictures of 4L60E and 4L80E.
Feb 7, 2009 | 03:35 PM
#11
His speedo is way off or he was doing a 2/3 shift not 1/2. he's not going to do 80 in first. 60-65 at the most.
at the top of the GM drivetrain section there is a Gear/MPH calculator. Play with it and see the shift points based on different gears and tire sizes.
at the top of the GM drivetrain section there is a Gear/MPH calculator. Play with it and see the shift points based on different gears and tire sizes.
Feb 7, 2009 | 07:50 PM
#14
all i know is my friend went and bought a 99 silverado in 02 and i was like take me for a ride. and no f'ing lie it went from 0-60 in 3-3.5 seconds in first gear and the rpms were only around 5000 and he put it to the floor and at 6,000 rpm we were doing 80 he manually shifted it to 2nd and let off. No extra gauges, coulndt see anything out of the ordinary from underneath, wouldnt let me look under hood. And it sounded like a possible built 5.3. the exhaust was quiet. didnt sound like a supercharger??? I dont know. Can anyone help me out. If he was still around here i would ask him. Yes the tires on it were factory 235/70/16. This is what he told me he had. 5.3 c.a.i custom tune shift kit true duals tb spacer. didnt tell me anything else. i just want to build one like it. he shifted it to 6000 rpm and it didnt sound like it was over revving or anything like the factory. im lost man. Oh yea and when he took off it didnt jump to 3000 rpm or anything it went to 1500 and had hella power.............. so torque converter? cam? gears?
Feb 8, 2009 | 01:56 AM
#15
doesnt matter, unless you have like an HD2 Shift kit/reprogramming kit in the tranny, u can roll around town with it in "1" and itll still shift
Feb 9, 2009 | 01:16 PM
#16
Thread Starter
Teching In
Joined: Nov 2008
Posts: 32
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No its no joke. he moved to florida and i havent talked to him for 4 years. he had a hd2 shift kit in it he told me he just didnt tell me what all was done to it besides shift kit custom tune true duals c.a.i tb spacer. there had to be atleast a cam torque converter and gears maybe. i dont know. im justtrying to figure out what he had without anyone saying this is a ******* joke and **** like that. if you cant comment without some bullshit then dont comment and go on about you business. thank you oh and he could still tow a trailer with 4wheelers and **** on it. So please help me out here
Last edited by 2007silveradoz71; Feb 9, 2009 at 01:22 PM.
Feb 10, 2009 | 10:01 AM
#20
Thread Starter
Teching In
Joined: Nov 2008
Posts: 32
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in my truck 2007 nnbs silverado 5.3 3.73 gears 4x4 ext. cab hypertech programmer c.a.i borla exhaust i can do 50 or so in 1st. gear. at 6,000 rpm. and it sounds like it wants to blow up. what is needed to not be like that a cam that goes to 6300 rpm tops and set the shifts at 6,000??? how does this setup sound for a 99 silverado. 5.3 texas speed 224R, c.a.i, hd2 shift kit,true duals,4.88 gears 4L60E. custom tune.
Last edited by 2007silveradoz71; Feb 10, 2009 at 10:13 AM.