Launch Control Setups

[kyledude351]

Anyone running launch control and setting off brutal backfires as loud as gunshots?
Couldn't find much on launch controllers...
I see launch control, anti-lag type videos all over youtube, but I can't seem to find what people are doing to achieve this.
What I'm interested in is setting the rev limiter low to build boost before launch, at least I'm pretty sure that's what these guys are doing...

Does it make a big difference? I want to get insanely fast launches, and I wouldn't mind the flames or pops

[nickisonfire]

Launch Control Setups

Bee*R rev limiter but i was told its not safe for everything lolll i hear that some aftermarket ecu have some lauch controller
Nic

[h4X6]

AEM, Megasquirt, to name a few have 2 step launch control

[Dragon Humper]

How big is your turbo(s)? I don't need or want launch control and i have one of the biggest hairdriers in the business.



Jon.

[gtrjon]

any quality ecu has built in launch control and/or antilag. My vipec makes 21psi of boost out of my bw 91/80 off the line at 6500rpm. if your running a stock ecu or power fc get a beer limiter.

[Skym]

PowerFC Pro has a 2 step launch control -

https://www.youtube.com/watch?v=SIFNA7_2mGU

Nistune can have launch control (software, etc mods) -

https://www.youtube.com/watch?v=WfuGsJmXQfo

If don't have 2 step, can buy a MSD 6al-2 and combined with Nistune you can have launch control -

https://www.youtube.com/watch?v=-IMYpDjKGKA

MSD 6al-2 -

http://www.msdignition.com/Products/Ignitions/Street/Strip/Digital/6421_-_MSD-6AL-2_Ignition_Control.aspx

[h4X6]

id like to know what nistune has launch control, because i was running it and it was nowhere to be found.

[Shane_Sawatzki]

nistune doesnt have launch control built in for R32 ... they release it for s13 but it wasnt ever profected and I dont think many people use it. I have nistune right now and wish I had launch control

[NismoS-tune]

How big is your turbo(s)? I don't need or want launch control and i have one of the biggest hairdriers in the business.



Jon.

And oldest dinosaur of a hairdryer



I have launch control with the vipec as does the haltech which are both $2k at most so very resonable for what you get. Launch control and anti lag is brutal on your parts because the combution happens in your exhaust system and turbine...


Edit: here's one of my favorites but he's gone through a few sets of turbos, manifolds and exhaust systems already, because of getting silly with this over and over. But hey, you obviously have lots of money

http://www.youtube.com/watch?v=ut6e0YCQnkQ

http://www.youtube.com/watch?v=MenUIvMIrJg

[Dragon Humper]

And oldest dinosaur of a hairdryer

And yet I have yet to see any dyno plots of any of the new fancy-ass ridiculously priced turbos do much better (although, mine is about $2000 new if you shop around).

Every time I see a discussion about anti-lag or launch control I wonder...what more do people want. I can't see a smaller or "more modern turbo design" coming up on boost out of the hole worse than my car does. I literally blow the tires right off out of the hole.....dropping the hammer at 7000rpm. I actually would like to try and dial in less than 1 bar of blow in 1st gear to try and put some power down. About the only place I will be able to hold a full bar of boost would be on a drag strip with slicks or drag radials. Even with a big 4 wheel burnout at the track in 2nd gear I still cant hold it at a full bar. 275s on the rear, 245s on the front.

The reality is, anti-lag is very hard on everything and should only be used by hard core mo-foes with endless funds.





Jon.

[nimblestix]

Hey Jon, to achieve that boost by gear, look into the apexi avcr. Can set it based on speed/gear. Unless you already have a way of controlling boost by gear besides using the fun pedal to do it.


I have launch control, controlled through my aem v2. I'm pretty happy with it, I'm also fairly conservative with it, only boosting 10 psi out of the hole, add a little more fuel to it and it would get out of hand.

My fastest track time so far is 11.5 at 122mph with crappy street tires, and honestly I don't think I could do better without L/C.
Launch control is a waste if you can't work the clutch.

sent from a galaxy far, far away

[Bruizer]

And yet I have yet to see any dyno plots of any of the new fancy-ass ridiculously priced turbos do much better (although, mine is about $2000 new if you shop around).

Every time I see a discussion about anti-lag or launch control I wonder...what more do people want. I can't see a smaller or "more modern turbo design" coming up on boost out of the hole worse than my car does. I literally blow the tires right off out of the hole.....dropping the hammer at 7000rpm. I actually would like to try and dial in less than 1 bar of blow in 1st gear to try and put some power down. About the only place I will be able to hold a full bar of boost would be on a drag strip with slicks or drag radials. Even with a big 4 wheel burnout at the track in 2nd gear I still cant hold it at a full bar. 275s on the rear, 245s on the front.

The reality is, anti-lag is very hard on everything and should only be used by hard core mo-foes with endless funds.





Jon.

I do agree with you, turbos are only getting Better. Even the $5k+ EFR turbo kits dont need anti lag unless you don't mind replacing them. Thankfully, it seems turbos outlast The average rb engines... Haha

Then again I think Jon has a unicorn stock bottom ended 700whp beast so he doesn't Count

[Dragon Humper]

After all the abuse i have given this thing i seriously doubt both the bottom end and trans is stock. The trans has had a low growl noise at very low speeds since day one. Having never ridden in another GTR before i thought the worst. Once i figured out i had a triple plate clutch i am convinced there is a set of aftermarket gears in it. 3rd gear is still intact after pounding on it for 4 seasons now.

The bottom end must have at least pistons, a better set of oil pump gears and rod bolts because the compression has been 150 across the board since day one as well with a serious tolerance to low octane fuel with the JDM tune and surprisingly moderate A/F ratios.

Oh yea, I need to get a softer spring for the waste gate to go below 1bar. I launch with the boost controller off, turn it on in 2nd then hit the scramble in third to get me up to 1.5 bar. Beat a GSXR1000R with that. At that point i am at 92% duty cycle on my 1000cc injectors. Its a lot of stuff to do in the cockpit...lol. I want to get a newer boost controller to get per gear control.



Jon.

[r33_gtst]

I've had launch control 4 seasons now, barely use it
Only on back roads messin around but stressful on other parts launching hard.
I have a bee*R and love it
Gain is turned up all the way
It shoots massive flames
I smash it off the limiter in 3rd all the time
4 seasons later my compression is 165-170 across the board

[Skym]

nistune doesnt have launch control built in for R32 ... they release it for s13 but it wasnt ever profected and I dont think many people use it. I have nistune right now and wish I had launch control

I gather it's simply inputting 0km/h into ECU (cutting the speed signal from dash to ECU via switch on clutch pedal) which engages the safety revlimiter (set it lower and is a fuel cut). Then rev engine which hits revlimiter and then once you release the clutch the switch makes a connection which inputs a signal into ECU and that disables the revlimiter and car accelerates normally.

I think the same applies to PowerFC PRO which is said to be based off a stock GTR ECU and you need a switch to deactivate the revlimiter (it's a ignition cut revlimiter, not a fuel cut revlimiter).

With Link, ViPEC, etc you can have inputs (oil pressure sensors, switches, etc) activating or deactivating revlimiters (fuel or ignition cut).

The software mods with Nistune would be creating a ignition cut revlimiter vs fuel cut revlimiter. A person with knowledge of machine code, spare time could do it.

I think the MSD 6al-2 does a similar job, but has a ignition cut revlimiter.