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*

http://home.comcast.net/~ez3k137/roflcopter.gif

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...

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.....

leave it in D4
turn traction control off

traction is the issue - I spun my tires through 80' when I was running nawz.....

Is D4/ D5 any different?

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

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


well - my best time slip is -

- 13.9350 @ 109.04mph.... so bring what evar your 5000 lbs wants....

Uh oh, well thanks for the help.

Okay I don't get it. Why not put in 1,2,3..?
seriously.

Okay I don't get it. Why not put in 1,2,3..?
seriously.

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.

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.

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

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.

I have noticed this happening and it pisses me off to no end.

leave it in D4 - the upshift points are pretty optimal to flat out WOT runs


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.

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...

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?

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?

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?

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?

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 :)

Ahhhhh... Forgot about the traction control. Ok, no D5... Thanks! Gonna use my AutoEnginuity sorta-speed tracker and find out my sorta-times :)


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

well - my best time slip is -

- 13.9350 @ 109.04mph.... so bring what evar your 5000 lbs wants....
wow 13.935@109.04 Are you having some problems hooking up? @109 you should be mid or low 13's

wow 13.935@109.04 Are you having some problems hooking up? @109 you should be mid or low 13's

yep - bad - spun all the way through the first 80'. probably a good thing - not sure that the trannie/rearend would have held if I actually hooked it all up.

the LS engineers told us that the trannie should be good for about 340hp - so the 100 shot put me over that.

I run with negative camber (due to lowering - and autocrossing) so it can hurt me on a launch.

You won't come close to winding out 4th in the 1/4 mile unless you are running NO2 (and would probably need LOTS of it). You'll barely make it through 3rd, and maybe just start on 4th when you cross the traps. At that point, I'd seriously recommend stepping on the brakes.

Ahhhhh... Forgot about the traction control. Ok, no D5... Thanks! Gonna use my AutoEnginuity sorta-speed tracker and find out my sorta-times :)
How hard is it to set the speed tracker up and how accurate is it?
Mine gets here tomorrow. :wrench

lucky the car won't let you shift late. Any idea why the has has such an early red line?

Dunno... most likely cost. I mean, what would really be the point of an 8k redline? How long would it take to get there? I'd much rather build some usable power down around 4 or 5k and go from there. I guess I'm old school and am used to large displacement, OHV bottom end grunt, not the tinny scream of a rice burner running for its life.

I am a big believer in traction control at the track. Sure, if you launch too aggressively it will cut fuel, but if you do a nice launch, it will just give minimal braking to control wheelspin. I cut a 2.2 second 60' time with traction control on.

drive around the waterbox and don't do a burnout unless you're using dr's

keep the water off the starting line so people who cut real 60's don't have anything to complain about ;)

How hard is it to set the speed tracker up and how accurate is it?
Mine gets here tomorrow. :wrench

It's not hard to set up at all!!! Some of the fields the computer will fill in itself.. You mainly put in the tire specs, elevation, extra weight (people in the car during test time), and I think that's about it.. It'll figure out humidity, temp, and gear ratios. Oh yeah, you'll have to enter frontal car area, but I have the number writted down somewhere..

As for the accuracy.. I have no idea.. It did tell me tha my speedo was 2 miles over.. and I knew that already from using the tire calculator since I have different tires from stock... You'll have to ask someone w/ another type of device.. Quik LS has one...

not at all.. it's basically your Overdrive/drive button on a regular vehicle.

You'll have to ask someone w/ another type of device.. Quik LS has one...

I use a G-Tech Pro Competition (www.gtechpro.com (http://www.gtechpro.com)) - used it for about 2 years now. My G-Tech results have matched closely to my dyno/time slips results.

The Speedtracer looks promising.... I haven't taken the time to set it up yet.

If I ever want to quickly accelorate I put into 1st then 2nd and then 3rd. I don't have SST so I to was wondering about it. I hit 4th at about 90 right before the redline. The problem I have now is that I don't really have a D4. If I put it into D4 it shows up D5 on the message board but during last winter after shifting it manually a lot, it finally recongized it when I was toping out. It actually reconized 4th and put me in it becuause I could feel it stay in. Now it is back to the point where it is always D5. Anyone have any ideas about this. When I shifted manually my 0-60 was .2 better, and I upshifted right before hitting the redline because of the long delay.

If I ever want to quickly accelorate I put into 1st then 2nd and then 3rd. I don't have SST so I to was wondering about it. I hit 4th at about 90 right before the redline. The problem I have now is that I don't really have a D4. If I put it into D4 it shows up D5 on the message board but during last winter after shifting it manually a lot, it finally recongized it when I was toping out. It actually reconized 4th and put me in it becuause I could feel it stay in. Now it is back to the point where it is always D5. Anyone have any ideas about this. When I shifted manually my 0-60 was .2 better, and I upshifted right before hitting the redline because of the long delay.

I have a funny feeling that the D4-D5 selection is simply a switch in the non-SST shifter (like an OD-Off button on some trucks). Sounds like the switch may be intermittent.

How did you measure your 0-60 times? I'd be suprised if shifting manually really made that much improvement. Although once I did get mine to bang 2nd gear quite hard using proper modulation of the throttle (slight lift from WOT then stabbing it) and manually shifting (I don't have SST either), so I sense there is potential for improvment. Have you ever hit the rev-limiter? Anyone know where the rev-limiter on a V8 IS?

Ok took my car to this industrial area last night and did a few launches, Its a long strait stretch nicely paved in walnut its about 2 miles long. I would hit about 120 and i wouldn't climb further but i didn't feel my engine dieing off to limit my speed. Is this supposed to happen? Am i at the "tire" limit that the PCM has? Also before a race should you reset the car by disconnecting the battery for 10 mins so that the adaptive learning lears that you like to drive really fast? Also, my 0-60 is not fast at all, its like nearly 10 seconds. Anyways i am going to take out my 200lbs of stereo crap and take it for some more runs some time soon to see if that makes a difference at all.

Ok took my car to this industrial area last night and did a few launches, Its a long strait stretch nicely paved in walnut its about 2 miles long. I would hit about 120 and i wouldn't climb further but i didn't feel my engine dieing off to limit my speed. Is this supposed to happen? Am i at the "tire" limit that the PCM has? Also before a race should you reset the car by disconnecting the battery for 10 mins so that the adaptive learning lears that you like to drive really fast? Also, my 0-60 is not fast at all, its like nearly 10 seconds. Anyways i am going to take out my 200lbs of stereo crap and take it for some more runs some time soon to see if that makes a difference at all.

I believe the non-sport pre-03 and all 03+ were limited to 133mph by the PCM.

The adaptive learning is more for shifting firmness than anything else.

should be in mid-6 for 0-60.....

fuel filter? plugs? ...

I believe the non-sport pre-03 and all 03+ were limited to 133mph by the PCM.

The adaptive learning is more for shifting firmness than anything else.

should be in mid-6 for 0-60.....

fuel filter? plugs? ...

stock

Quik LS wants to know if you have changed the plugs or fuel filter at all, 10 seconds is way off....

Quik LS wants to know if you have changed the plugs or fuel filter at all, 10 seconds is way off....

never changed plugs and the fuel filter was changed 10k miles ago.... But i forgot about my wheel ratio. I forgot that i have bigger wheels and so i was driving faster then my speedometer was telling me.

If I ever want to quickly accelorate I put into 1st then 2nd and then 3rd. I don't have SST so I to was wondering about it. I hit 4th at about 90 right before the redline. The problem I have now is that I don't really have a D4. If I put it into D4 it shows up D5 on the message board but during last winter after shifting it manually a lot, it finally recongized it when I was toping out. It actually reconized 4th and put me in it becuause I could feel it stay in. Now it is back to the point where it is always D5. Anyone have any ideas about this. When I shifted manually my 0-60 was .2 better, and I upshifted right before hitting the redline because of the long delay.
I had that same problem about my message center not recognizing the switch from D5 to D4 and vice versa.. The center stayed at D5 all the time.. but every other position (P,R,N,3,2,1) were noticed.. I took it into the dealer and it was the shifter itself.. they replaced the entire shifter and it works great.

the best way to drag? hmm dress like tim curry in the rocky horror picture show. now thats drag baby.

the best way to drag? hmm dress like tim curry in the rocky horror picture show. now thats drag baby.
:F

lol.. ya that is the best way to drag if your into that stuff i guess.. lol