thanks, didnt know that, really good news, i will check with todd

you are right, no problems for transmission just in case of driver error, i saw bent rods using wot shifting, that's why i would go for a ecu enabled wot shifting instead of a 3rd party box doing the same thing.

for the moment i use the car more for straight line - highway mostly so it would be fun to race some double clutched cars with that feature enabled, keeping boost between shifts would be great

 

Check this link:


http://www.kptechnologies.com/products.php#/21

 

We still use the Porsche ECU to control certain car functions, the MoteC M880 handles primarily motor management. Jim McLaughlin who federalized the 959's for Canepa is setting up the MoteC and handling all the wire lumes. We went with MoteC primarily for it's ability to manage dual injectors in addition to achieving smog certification, the earlier mentioned Motec options were a plus.

https://www.6speedonline.com/forums/...-j-maring.html

 

One of the best features you can have

 

thanks for the link blackbull

is funny how after 2-3 years on the 996tt tuning scene i still discover some great features that nobody is speaking about, i even bought the 3rd party wotbox...

btw i just discovered brake boosting enabled into my tune, another great feature, and i was able to get into 5s 60-130 from the first try on medium boost, cutting down a few 0.1s

now guys, can you share some valuable info about the wot shifting, how this feature improved your car performance ? what would be the average shifting time wot shifting ?

 

Most LC is usually created by an organized misfire sequence. NLS is somewhat the same process. I feel that a good clutch and good driver and you can achieve the same result (if not better). Features like this are demanded by the end user, but it seems they are rarely used by the actual people setting the records. Most the shop cars on various platforms I've seen set the records, aren't using the gimmicks to do it.

It also should be understood there is a huge difference between a 2-step system, a factory LC system, and an aftermarket LC system. A lot of different ways to skin a cat, some systems give the appearance of the best but only provide the illusion of a true launch control.

It also is very dependent on hardware being used. Most turbo cars (not 4 bangers with big turbos, ones that the car can actually spool) usually do best launching with an upswing of the RPM's through the rising boost. Holding a stagnant RPM builds boost, but when the clutch is dropped you loose a fair bit the power you just built as everything just changed dramatically.

Granted, doing it the manual way brings in a lot of more variables and opportunity to screw up, but I enjoy the variables to learn from. If you're bracket racing though, or going for a 1 shot pull for money, I get it's worth leaving a little on the table to get the consistency.

What are your mods? 5's in the 60-130 is pretty solid for most the bolt on 996tt's. Done with a p-box or just video?

 

It'd be neat to see a list of the 1/4 porsche guys with their results that shows their hardware, tuning, and features used, especially ones on stock ecu's (I figure guys sub 10 or even low 10's are serious weight reduction/drag radial/not street cars).

This is a smaller list for Audi's on a forum that just started up where you can sort it by a lot of different variables. I've seen similar on some american car forums that have hundreds and hundreds of cars entered. It's really a neat way to compare everything side by side.
http://audirevolution.net/quartermile/

I know we have the sticky's on this forum, but with how large 6speed is, it'd be a pretty cool way to time a lot of platforms together.

 

About LC I see things as you are... i wanted consistency at the strip, somehow i wish a really good LC will get me where a perfect manual launch will get me, from experience is hard to do a perfect launch and at least 3 perfect shifts, LC will give us enough time to prepare for the first shift (the hardest imo), anyway i totaly agree keeping the car upswing will net some good 60ft.

I had 2step and that was giving me consistent 1.9-2.0 on street tires and street pressure, grippy surface

I did 1.79 once and lots of 1.8s on the same tires, pressure and surface, but unconsistent... gt2 clutch isnt going to help a lot launching these cars, better tires dont necesarily help us with that

I saw aftermarket LC that are working great, factory LC is great too


I did 5 runs last week, and got very consistent times
4 times 5.9s and 6.0 / 5.2 100-200
1 time 5.88s / 5.1 100-200

MY setup is markski ski850 with a bigger fuel system, erp clutch, simple engine build, rwd, proto tune, aquamist meth kit, R888

i was running 1.6-1.65bar of boost, pump and 100meth


We have a 997tt tiptronic here 3.8l and gt30s running 9.71 @150mph, i saw some high 1.5s 60ft... stock ECU, the owner told me his best 100-200 is 3.6 and 0-300 in 14.x

 

if your drag racing and your lined up and staged you have less than 3 seconds before the tree goes green. in that 3 seconds you have to stop the car, raise the rpms to launch level, and then release the clutch so you can move forward. if your watching the tach to keep the rpms consistent than your arent watching the tree. result= slow launches and chasing the opponent down the track. with even a 2 step you can floor the car and have the same consistent rpm and then watching the light drop the clutch for a solid launch each time.
now this isnt to say you wont break axles, trans or clutches with hard launches but thats racing.
if your going to drag race on a regular basis with a manual trans a launch control is an invaluable tool to have. the nls is another bonus to fast 1/4 mile times. if your only racing for a speed slip then none of this is relevent

 

That's if you're bracket racing. Like I said, if that's what you're going for then I completely get it.

Most guys are going to the strip just to go, have fun, and use it as a benchmark for their mods. If that's the case the light can go green, you sit there for a couple seconds, go when you're ready, and it not effect you ET at all, only reaction time, which means nothing for anything but bracket racing.

I had LC on my last car, and probably made 75-100+ passes in the car from stock to when I sold it. The LC certainly was the easiest and most consistent. But I could set the same 60' and better by manually launching. I've had multiple tuners say the same thing about the LC, and I'd imagine most the guys setting some 1/4 records on oem ecu would say the same.

I had a great clutch fw setup in my last car as well, so the NLS wasn't a concern as I could do semi-powershift all day and result in the same goal. I've heard these porsche trans aren't as friendly though, so I don't know how they like that approach (or nls for that matter).

 

Ah, the marski ski850 kit, no wonder you're in the 5's lol!

Thats also some awesome times from those other cars. 1.5s 60' time is strong lol. Not too many guys cutting those 60' times.

Heck, you got a proto tune, why don't you just call Todd himself. He's been capable of doing LC and NLS for years and years now, probably had it well before anyone else did. He just doesn't advocate it. I'm sure the absolute last thing he'd want on a car like yours is some $200 WOTBOX messing with the electronics of the car and what the tune is trying to do.

 

Lol ... Didnt call todd cause i didnt know he can provide that )

 

For the 996 turbo most tuners offer a launch control that is just a basic rev limiter. I believe the NLS is just a rev limiter as well. A true anti-lag system would adjust the timing so that the car runs rich, the excess fuel ignites in the turbo and keeps the turbos spinning to build boost. I believe tuners offer this for the 997 but not the 996. It is very hard on turbos though.

With the basic rev limiter launch, you aren't really building much boost. It is kind of like launching on NA power only. That's my understanding at least.

 

ok guys, i got my NLS/wot shift tune from Todd, the name of the file contains 7250flatshift, is there anybody can describe exactly how to get this work? are there any problems if going to start the shift before or exactly how to get it done.

I hope to install new shifter and cables next week, use some racegas to turn up the boost and NLS to improve my 60-130 if the weather will help me

mbgt72, thanks again for the tip to ask todd for the flatshift tune, really apreciate that man, rep points to you

 

I have the 2 step, rolling anti-lag with my ProEfi. I have 5 preset boost levels
with the highest level having a 20 lb "target." In actual practice, it reaches about
16 - 17 bs.

Launching at 4k rpm in 3rd is like getting hit in the *** with a sledgehammer.
Launching at 3500 rpm in 4th gear produced a 4.65 60-130 and a 3.95 100-200 kph.

I'm going to have some work done on the gearbox over the next couple weeks,
but I fully expect 4.5s or even 4.4s 60-130 when It's finished.

It's an amazing system but it his hard on the drivetrain, turbos etc... so you gotta
use it sparingly and sensibly. Unfortunately, sensible is not my strong suit.