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Old 13 July 2014, 01:22 PM
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chieftain333
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Default Launch control

Hi all, I'm at the dragstrip,I've just found out the car has launch control that I didn't know about,it's a ecutek map...anyone know how to turn it off!?
Andy
Old 13 July 2014, 01:47 PM
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scoobyross
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You tried, turning ignition on, depressing accelerator pedal and pressing the demist switch, Should flash once for road (launch control), and 7 times for race mode.
Old 13 July 2014, 01:48 PM
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I'm not familiar with Ecutek maps, but i have AL mapped in with ESL board, and it is turned on + off via a switch in centre console.
Old 13 July 2014, 02:10 PM
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Originally Posted by chieftain333
Hi all, I'm at the dragstrip,I've just found out the car has launch control that I didn't know about,it's a ecutek map...anyone know how to turn it off!?
Andy
You can't. Get who mapped it to alter it
Old 13 July 2014, 02:12 PM
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Jolly Green Monster
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Originally Posted by scoobyross
You tried, turning ignition on, depressing accelerator pedal and pressing the demist switch, Should flash once for road (launch control), and 7 times for race mode.
That's drive by wire cars only and depends what options the mapper set on whether you can turn launch on and off. You are just switching maps is the mapper set it to use the demister button. As it could be on the sport/sport sharpe/I mode button if a hatch for example
Old 13 July 2014, 03:47 PM
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Thanks for that JGM,well it's coming off for sure. Set at 5k and completely bogs down when launching. Also recorded the defi's and it's not holding boost at 1.5 as it was mapped to...supposedly. Consistently at 1.0 bar in every gear,very disappointing. Crap times lol
Andy
Old 13 July 2014, 03:52 PM
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What times did you run?
Old 13 July 2014, 03:55 PM
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Originally Posted by chieftain333
Thanks for that JGM,well it's coming off for sure. Set at 5k and completely bogs down when launching. Also recorded the defi's and it's not holding boost at 1.5 as it was mapped to...supposedly. Consistently at 1.0 bar in every gear,very disappointing. Crap times lol
Andy
If your launching and then up the box so your 5-8k rpm then the boost will be lower assuming your on a standard twin scroll turbo as the boost doesn't hold to high rpm. Check check the peak boost you would need to floor it from a lower rpm say 2500rpm in 4th, you won't be doing that on the strip.

Was it a glued track? 5000rpm at full throttle should have enough power not to bog, hour day though so maybe lots of grip available
Old 13 July 2014, 04:10 PM
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Yeah that's what it will be as I'm high up the rev range all the way down the strip,so am I restricted with the standard twinscroll then? Do they not hold high boost at that rev range?
The grippy section was only open today and I've got vredesteins on which grip well,I would have like a 6-7k launch to be honest
Old 13 July 2014, 04:21 PM
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They dont hold boost to high rpm no
Old 13 July 2014, 04:27 PM
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Oh...so pretty pointless doing drag racing in it then lol. Was hoping to get in the 12's
Old 13 July 2014, 04:39 PM
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Had a twinscroll setup in classic launching at 4k was running around 320bhp, managed a 12.77 at york
Old 13 July 2014, 05:48 PM
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were you letting the launch control engage properly and build a decent amount of boost?

you cant just blip it off the limiter once and dump the clutch you have to build the boost properly first
Old 13 July 2014, 06:10 PM
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Originally Posted by JGlanzaV
were you letting the launch control engage properly and build a decent amount of boost?

you cant just blip it off the limiter once and dump the clutch you have to build the boost properly first
Yeah I was bouncing on the launch control limiter,I just couldn't launch it at those revs. Maybe it's just me but I've been down the strip for over 10 years in all my cars and this is my most powerful and it's the lowest times I've ever got. I couldn't even get in the 13's.
With my old 1996 sti wagon with just over 300hp I got a 12.74
Old 13 July 2014, 06:15 PM
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Originally Posted by chieftain333
Yeah I was bouncing on the launch control limiter,I just couldn't launch it at those revs. Maybe it's just me but I've been down the strip for over 10 years in all my cars and this is my most powerful and it's the lowest times I've ever got. I couldn't even get in the 13's.
With my old 1996 sti wagon with just over 300hp I got a 12.74
what boost were you showing on launch?
Old 13 July 2014, 07:03 PM
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I've recorded a run on my defi's,I'll stick it up in a bit
Old 13 July 2014, 07:17 PM
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No problems, it seems a bit odd that you are bogging down at 5k, my mate running a similar set up but on a single scroll was launching today at 4,600rpm and it was taking off like a stabbed rat...
Old 13 July 2014, 07:54 PM
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At 5k it's hitting 0.2bar,ignore the oil temp flashing..the senders faulty
Old 13 July 2014, 11:42 PM
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I think I may have read this wrong but do twinscrolls not launch as well as single?
Old 14 July 2014, 06:56 AM
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That seems a bit low. If you hold the launch for a bit longer does the boost build higher?

I can't compare to my launch control (1.5bar builds on mine) but I know my friend is seeing 0.6-0.75 bar on his launch
Old 14 July 2014, 11:26 AM
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It stays roughly the same each time
Old 14 July 2014, 11:45 AM
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so even if you hold it for longer it wont get any higher?
Old 14 July 2014, 12:06 PM
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I'd have to double check it but all I know is launching it with what it's set at is ****. I did 5 runs and it bogged down on every one. It just needs removing in my eyes.
Old 14 July 2014, 01:03 PM
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Originally Posted by chieftain333
I'd have to double check it but all I know is launching it with what it's set at is ****. I did 5 runs and it bogged down on every one. It just needs removing in my eyes.
You need to try and hold it longer and see what happens...

And it definitely doesn't need removing, I would say its more than likely you need to just get used to it.

I wouldn't race with out it! This is how it is when you get it right!


Last edited by JGlanzaV; 14 July 2014 at 01:26 PM.
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