whats the best way to drag *lol*

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whatsupadrian

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this is probably a stupid question, but what would be the best way to drag race in an LS8 that does not have the SST? Just keep it in D5 and floor it off the line and keep it there? or Put it in 1st and floor it and shift when u get close to the red line doing same for 2nd and 3rd and then pop it into the D4/5?? I am going to irwindale and want to get best times...
 
*LOLOLOLOL*

roflcopter.gif
 
whatsupadrian said:
this is probably a stupid question, but what would be the best way to drag race in an LS8 that does not have the SST? Just keep it in D5 and floor it off the line and keep it there? or Put it in 1st and floor it and shift when u get close to the red line doing same for 2nd and 3rd and then pop it into the D4/5?? I am going to irwindale and want to get best times...
Click to expand...

EDITED for STUPID COMMENTS...

On second thought...the LS8 was offered WITHOUT the SST?

-Pete
02LSE
 
leave it in D4
turn traction control off

traction is the issue - I spun my tires through 80' when I was running nawz.....
 
yes - the trannie will tend to upshift to d5 before the optimal point - we can hit the LS topspeed in d4 and still have rpms left on the engine....
 
ok I have a markVIII but this is a trash talking thing At all times keep a tennis ball in your car and if somoen is being a wuss tell them to throw it and that is there head start... just say Ill give you a tennis ball.... then explane
 
dertyclown said:
ok I have a markVIII but this is a trash talking thing At all times keep a tennis ball in your car and if somoen is being a wuss tell them to throw it and that is there head start... just say Ill give you a tennis ball.... then explane
Click to expand...


well - my best time slip is -

- 13.9350 @ 109.04mph.... so bring what evar your 5000 lbs wants....
 
Okay I don't get it. Why not put in 1,2,3..?
seriously.
 
JaredLS said:
Okay I don't get it. Why not put in 1,2,3..?
seriously.
Click to expand...

I dunno, thats what i used to do but i guess the shifting points are better in D4. I got flamed for asking the damn question :(
 
letting the car shift itself I think tends to be more repeatable. I know in my car with the sst this is true... D5 and D4 seem to be pretty close in shift points. When I'm in manual, I have noticed a tendancy to undershift, meaning when I whack it at 6k, it might not do it until 6.5k or 6.7k. This is one reason I'd buy the flasher to do what Quik did... firm up / speed up the shifts. When the computer is shifting itself, it knows at 5999 rpm (or where ever) to start shifting, and by the time the engine gets to the peak, the shift is done, kinda like reverse engineering the shift, if that makes any sense.
 
kleetus said:
letting the car shift itself I think tends to be more repeatable. I know in my car with the sst this is true... D5 and D4 seem to be pretty close in shift points. When I'm in manual, I have noticed a tendancy to undershift, meaning when I whack it at 6k, it might not do it until 6.5k or 6.7k. This is one reason I'd buy the flasher to do what Quik did... firm up / speed up the shifts. When the computer is shifting itself, it knows at 5999 rpm (or where ever) to start shifting, and by the time the engine gets to the peak, the shift is done, kinda like reverse engineering the shift, if that makes any sense.
Click to expand...

lucky the car won't let you shift late. Any idea why the has has such an early red line?
 
leave it in D4 - the upshift points are pretty optimal to flat out WOT runs
 
kleetus said:
letting the car shift itself I think tends to be more repeatable. I know in my car with the sst this is true... D5 and D4 seem to be pretty close in shift points. When I'm in manual, I have noticed a tendancy to undershift, meaning when I whack it at 6k, it might not do it until 6.5k or 6.7k.
Click to expand...

I have noticed this happening and it pisses me off to no end.
 
Quik LS said:
leave it in D4 - the upshift points are pretty optimal to flat out WOT runs
Click to expand...


I use d4 and it is much crisper than the sst. I feel like I have to shift early with the sst to get it to shift on time due to the lag in shifting. I have red lined it once or twice becasue of the shifting lag.
 
I'm with them, makes sure you don't shift to early or wait too late and hit the rev limiter.
 
whatsupadrian said:
this is probably a stupid question, but what would be the best way to drag race in an LS8 that does not have the SST? Just keep it in D5 and floor it off the line and keep it there? or Put it in 1st and floor it and shift when u get close to the red line doing same for 2nd and 3rd and then pop it into the D4/5?? I am going to irwindale and want to get best times...
Click to expand...

Usually, I launch by brake-torquing to about 2000 RPMs, then release brakes and mash it on the last yellow. Although I'm not convinced that the car might not launch quicker just mashing it from idle. Launching is the LS's weak point. Definately turn traction control / AdvTrak off unless you have serious traction problems. My best 60' is 2.251.

I've used D4 as I don't think there is any difference between that and D5 in terms of shift points, but D4 keeps it from upshifting after you cross the 1/4mi mark and let off to give you a little more engine braking. Next time though I may use D3 to prevent that last shift to 4th just before crossing the 1/4-mi mark (hope I don't hit the fuel cutoff!). I don't think 3.31 geared cars would have this problem unless they are trapping in the high 90s.
 
I tried that brake torque. I heard it was the best way, to get your times down. So, I did it one run. I ran three tenths slower and at 1500rpm it was already spinning. If I can get some drags. I will do it again. But on my tiny 245/45 It just doesn't work. Another thing, you just have to get out there and test a few things out. . .
 
kind of a stupid question but is it bad for the engine to switch from d5 to d4 while driving...I'm thinking not but is it?
 
JaredLS said:
kind of a stupid question but is it bad for the engine to switch from d5 to d4 while driving...I'm thinking not but is it?
Click to expand...

nope.
 
So if I'm reading the correctly the following should happen:

Put into D4, MASH ON THE BRAKES, and the let the engine rev to about 2500 rpm (right under the rev limiter).

Let off the brakes and immediatly smash on the accelorator, when the rpms (in D4) almorst redline, shift into D5 and finish out the drag


Sounds about right?
 
LBK_LS said:
So if I'm reading the correctly the following should happen:

Put into D4, MASH ON THE BRAKES, and the let the engine rev to about 2500 rpm (right under the rev limiter).

Let off the brakes and immediatly smash on the accelorator, when the rpms (in D4) almorst redline, shift into D5 and finish out the drag


Sounds about right?
Click to expand...

sort of:
- turn off traction control
- no need to shift into D5 - the car will hit it's top speed in D4.
 
Ahhhhh... Forgot about the traction control. Ok, no D5... Thanks! Gonna use my AutoEnginuity sorta-speed tracker and find out my sorta-times :)
 
LBK_LS said:
Ahhhhh... Forgot about the traction control. Ok, no D5... Thanks! Gonna use my AutoEnginuity sorta-speed tracker and find out my sorta-times :)
Click to expand...


I need to build my LSs profile for the speed tracker. I havent used it yet and am curious.
 
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