Launch control

[1qukcb7]

now that my car is tuned and running great (just took out a modded STi ) i wanted to get my launch control set up...is anyone using hondata and give me some pointers?

[deevergote]

If you took out an STi, I assume you're boosted, correct?

If so, I would DEFINITELY use a launch control that cuts spark, rather than fuel. As far as I know, most ECU-based launch control setups only cut fuel. If you do that, you'll be running lean as soon as the cut hits. That could result in severe detonation under boost. MSD makes good spark cut launch control modules. That's what I would look into.

[evil_demon_01]

For your Hondata it works by adding Heaps of fuel, and Seriously retarding the timing. For memory you can set it to do a fuel cut, OR fuel and ignition cut.

Eg - On mine I add 25% extra fuel, and retard the timing by 40 degrees.

You need to be careful doing it, because it creates very high EGT's and fairly fast.
Start off by adding extra fuel - then start retarding the timing in small amounts.

[deevergote]

Interesting. I've never heard of launch control by adding fuel... though that certainly makes sense! I wonder if any ricer ever hydrolocked by standing on it, hitting the cut for an extended period of time.

[dbsharp]

thats more commonly called anti-lag.

[twokexlv6coupe]

launch control/anti-lag/two-step, are they all synonymous with each other?

[bigpoppa694lyfe]

can i get more info on that msd unit?

[rossisalvage]

Im using hondata s100 with the launch control set at 4,500 rpms. I think im gonna lower that number but idk im just playing around with it. Works good though

[twokexlv6coupe]

Im using hondata s100 with the launch control set at 4,500 rpms. I think im gonna lower that number but idk im just playing around with it. Works good though

really? mine's set @ 3500 (on eCtune) and i wanna raise mine.

mine USED to be variable, but the tuner switched it when i got dyno'd, so now when i'm @ the track attempting to do a burnout, since the track is so slick, 3500 isn't high enough so when i dump the clutch i just get CRAZYYYYYYY wheel hop instead of spinning the tires

i'm pretty sure there's 2 different ways to setup launch control on eCtune, and i prefer the first way i had it

[rossisalvage]

really? mine's set @ 3500 (on eCtune) and i wanna raise mine.

mine USED to be variable, but the tuner switched it when i got dyno'd, so now when i'm @ the track attempting to do a burnout, since the track is so slick, 3500 isn't high enough so when i dump the clutch i just get CRAZYYYYYYY wheel hop instead of spinning the tires

i'm pretty sure there's 2 different ways to setup launch control on eCtune, and i prefer the first way i had it

hahaha niice. Idk I feel like 4,500 is too high for the streets I might drop it to 4,000. I have gotten a couple good launches at 4,500 when my tires are warm and its warm outside, but usually I just spin for days haha. Maybe I just need some good tires and 4,500 would be good

[mozzandherb]

can i get more info on that msd unit?

MSD 6AL-2 Ignition with rotary dial 2 step control and rev limiter. This is what I use and it's great because you can adjust it whenever you like. If you're serious about racing then I would recommend something along this line.

[turbo90accord]

i have my anti-lag set at 5200 rpm.

[twokexlv6coupe]

hahaha niice. Idk I feel like 4,500 is too high for the streets I might drop it to 4,000. I have gotten a couple good launches at 4,500 when my tires are warm and its warm outside, but usually I just spin for days haha. Maybe I just need some good tires and 4,500 would be good

i guess we should switch setups considering our driving style haha. 3500 sounds absolutely perfect for on the street, and 4500 would be perfect for the strip.

oh yea, your only supposed to build 1-2psi with the launch control right? nothing more?

[deevergote]

why would you want launch control for the streets anyway? That's idiotic.

[turbo90accord]

i guess we should switch setups considering our driving style haha. 3500 sounds absolutely perfect for on the street, and 4500 would be perfect for the strip.

oh yea, your only supposed to build 1-2psi with the launch control right? nothing more?

I build 15psi with launch control at 5800 rpm.

4500 on the strip will just make you bog, you would need to go much higher than that!

why would you want launch control for the streets anyway? That's idiotic.

anti-lag/launch control has no place on the street. launching at street lights will do 2 things, 1 break your car, 2 get you a ticket for exibition of speed.