chevyboi925

hello all thanks for help did some searching found few answers but not enough for me to make up my mind recently learned about running truck in 3rd and not D aka overdrive/4th for pulls and drags.. never shifted into 4th wot or tcc lockup but i understand about the overrun clutch and glad i know now before damage occurred and hopefully not much extra wear lol but now im wondering best way to do burnout apparently catching traction in 2nd is no no soo my options seem to be A. stay in 1st for longer .. B.put selector in 2nd ans start burnout in 2nd and it will shift to 3rd @ about 70 mph gass it then letout .. or C.manually select 1st rev it high shift to 3 then stab it and hopefully passes through 2nd very quickly i appreciate all the help 3200 stall 4.11 gears and 500 hp soo pretty sure starting in 2nd wouldnt be hard but havent tried on track

GMCtrk

iTrader: (27)

Start burnout in 1, shift to 2 and roast em, then shift to 3 and continue roasting then let off.

Selector in 3 for going down the strip or anytime under power

chevyboi925

thankyou hopefully more input from others thats the burnout ive been doing but usually letout in 1st soo with your method manually 1,2,3,? and yes from now on 3rd only when wot i would just stay in 3rd for all driving but overrun wants to bog on hard stops lol

thewrx

Like said above, plus if your not getting into 3rd your not getting eniugh wheel speed to get tire up to temp.

thewrx

Like said above, plus if your not getting into 3rd your not getting eniugh wheel speed to get tire up to temp.

i let 3rd rollout and then follow my tracks back up to staging.

The trans should be in 3rd not od (dont think you can call it that on a 4l80 lol). when rompin and stompin. Only time i shift to 4th is when i run out of mph

chevyboi925

ok thanks I leave it in 3rd now anytime I'm messing around or racing only put it into drive when I'm just cruising or on freeway and as far as the burnout should I start it selected in first and then continue selected in second and then finally 3rd or can I just put it in 3rd hit the gas and let it shift 1st 2nd 3rd

LIL SS

iTrader: (9)

When I had the 80e in mine I would:

Manually put it in 1st
Floor it and shift to 2nd right away
Shift to 3rd as soon as it was above the converter stall speed (in my case 4,600rpm)
Hold it at 6,000rpm for 3 full seconds
Let off the line lock while RPM was still up
Roll off the throttle
The second I felt it hooking (pulling RPM down) I would lift


Pull to the line in 1st
Bring it up to 3,200 or so on the foot brake
Floor it and manually shift each gear at my desired RPM (had a shift light set at 7,200rpm)


Via the tune I ALWAYS commanded lock up in 2nd at +/-6,200rpm, it simply went faster this way. I had shift lock disabled in the tune so it would unlock the verter before the 2-3 shift. I had it lock again in 3rd at +/-6,200rpm.


While many might tell you this is wrong and it will blow up, I did this for more than 5 years on a STOCK 80e (other than verter). First running 12.33 @ 3,950lbs all the way to 5 years later running 10.6x at 3,525lbs with 1.43 60's on N20.


I never raced it with the 80e when I went from the 347" --> 418" motor as I soon went to a glide.