My Is200 Turbo With Anti-lag!

[gsportcars]

Here yas go.......hope the link works

http://media.putfile.com/IS-turbo

[marcus]

Looking very nice mate, sounds good as well :D welcome to the Turbo club :winky:

[Lancio]

Nice :D Lot of back firing! some take off :D

[lee_iceman]

Nice arse out action and sounding superb.

What wheels are those you have?

[MartinC]

Awsome :D you have created a tool B)

sounds bloody fantastic mate, good work

[LexusIS200Sam]

Amazing machine!, sounds great and looks just as good!. well done mate! ;)

[PhoneDrome]

I like this kind of videos :) We need much more of this... and longer

How do you shift that fast? Is it automatic?

[gsportcars]

Nice arse out action and sounding superb.

What wheels are those you have?

They are 19" OZ superleggeras

I like this kind of videos :) We need much more of this... and longer

How do you shift that fast? Is it automatic?

It's a manual but I have the B&M shortshifter which is very tight :winky:

[chrisis200]

Why is there so much poping? I want mine to do that...lol

[GALLA_4]

Sweeeeeeeet!

[gsportcars]

Why is there so much poping? I want mine to do that...lol

That's the anti-lag. You need a turbo and a new ECU usually. It's great fun scaring old grannies LOL

[PhoneDrome]

Can somebody explain "anti-lag" please? Is it something like a launch control?

[Bazza]

Can somebody explain "anti-lag" please? Is it something like a launch control?

How ALS works

When the driver lifts his foot from the gas pedal the ignition timing is altered with sometimes 40° or more of delay (retard) and the intake air and fuel supply mixture is made richer. The inlet butterfly is kept slightly open or an air injector is used to maintain air supply to the engine. This results in air/fuel mixture that keeps getting in the combustion chambers when the driver no longer accelerates. The ignition being delayed, the air/fuel mixture reaches the exhaust tubes mostly unburned. When the spark plug fires, the exhaust valve is starting to open due to the ignition delay mentioned above. Additionally, the exhaust temperature being extremely high, the unburned fuel explodes at the contact of the exhaust tubes. Luckily the turbo sits right there and the explosion keeps it turning (otherwise it would slow down since its intake, the exhaust gases, is cut-off). The effect is vastly lower response times with some downsides:

A quick rise of the turbocharger's temperature (which jumps from ~800°C to the 1100°C+ region) whenever the system is activated

A huge stress on the exhaust manifold and pipes (mounted on a street car a bang-bang system would destroy the exhaust system within 50-100 km)

The turbo produces significant boost even at engine idle speeds

The explosions which occur in the exhaust tubes generate important flames which can, sometimes, be seen at the end of the exhaust tube

Reduced engine brake

The ALS effect is mostly dependent on the air allowed into the engine, the more air supplied the more the ALS effect will be noticeable. Consequently ALS systems can be more or less aggressive. A mild ALS will maintain a 0 to 0.3 bar pressure in the inlet manifold when activated whereas, when inactive, the pressure in the inlet manifold with the throttle closed would be in the region of -1 bar (absolute vacuum). Racing ALS versions can maintain a pressure of up to 1.5 bar in the inlet manifold with the throttle closed.

While the systems mounted in Toyota and Mitsubishi racing cars are relatively smooth and noiseless those fitted in Ford and Subaru cars are much more noisy and aggressive.

The bang-bang system owns its name to the loud explosion noises one hears whenever the driver lifts off. Most racing implementations have user selectable anti-lag settings depending on the terrain, usually three settings can be selected by the driver going from mild to very aggressive.

very much not like launch control :o

[MrADeveci]

Sounds lovely ! ......... what bhp is she now?

[PhoneDrome]

Great Bazza... great explanation! :)

Thanks! :)

[chrisis200]

Intresting read, thanks for that..

[Mr Singh]

Woah, the thing moves for an IS200 :P

Very very cool mate B)

[mus26c]

nice vid indeed , I wish if it was a bit longer :D

[Lancio]

Very good explanation :D Well done :winky:

[Monster-Mat]

very nice, well done

[Ellz]

very nice, well done

Nice noise and nice read.

Just wondering? why do motor bike have the bang bang when shutting the throttle from high ish revs, is this just fuel getting in the exhaust pipe???

And if so why dont cars get this apart from the explained above?

CHeers

[gsportcars]

That is a very in-depth explanation there Bazza!! :winky:

As far as damage to my exhaust etc goes you are right about that which is why Jonny (mapper) only set the anti-lag to mild to save my turbo and manifold. It is really just a toy for messing with as it is not set as vicious ALS.

Ellz---- That is just a slight over fuelling that gives a splutter when the bike lets off. I have that tapped into my map aswell so I get a few splutters and pops when slowing down through the gears :D

I also have the launch control set up in the car which basically limits the revs to 3250rpm until i pass 10kmph. There is a bit of ignition retard in there too so I get about 0.2bar of boost while sitting on the line This can obviously be adjusted to suit different cars etc!!

[Jiberjaber]

Here yas go.......hope the link works

http://media.putfile.com/IS-turbo

Arrgh.. quicktime... cant view it :(

why do people still use quicktime :(

[Ellz]

Here yas go.......hope the link works

http://media.putfile.com/IS-turbo

Arrgh.. quicktime... cant view it :(

why do people still use quicktime :(

wow lots of tinkerin been going on there? what turbo kit you got on yours??? and what ecu are u running??? any power figures yet ???

Sorry for all he questions lololol

Cheers

[gsportcars]

I built a custom turbo conversion but the manifold and turbo are the same as the one in the kit Dave (Prolex) is selling. I have an Autronic SM4 stand alone ECU. I have a full custom 3" stainless exhaust with all cats removed, braided oil lines and braided fuel return line. uprated fuel pump and regulator, denso iridium plugs, blitz dump valve and lots of other little toys :P

Our dyno is still not running properly over here as it need to be calibrated after some problems. I am guessing somewhere between 250bhp and 270bhp. I have new injectors to go in which will allow a slight raise in boost but only to about 280bhp. They are going in next week! :D