SameerP

my questions is...is that 5th injector shooting fuel or just being used to shoot air into the inlet? Fuel dosen't make sense...or perhaps even water?

Sounded like it was meant to reduce lag.

Just curious

Cheers,
Sameer

Tron (///M)

This is from Garrett's website, not GIAC, but Garrett the Turbo company.

"All teams use what they call an 'anti-lag' system. When the driver lifts off the throttle, the ignition timing is severely retarded, an above normal amount of metered air is allowed to enter the engine and fuel is injected between the exhaust valves and the turbine inlet. The ignited fuel creates heat that keeps the turbo speed up. When the driver re-applies the throttle, there is an explosion of raw fuel in the turbine that sounds like pistol shot, a burst of flame, and voila, no lag. This system can be switched on or off or modulated by a switch on the driver's control panel."


and it also says

"A single turbocharger is usually used for the entire 3-day event and then rebuilt, replacing the bearing cartridge."

Which makes me believe this is something you should be not doing. Unless of course you can afford to rebuild the turbo every week :-P.

Hope that helps. BTW this technology is used on all FIA WRC cars. Click link below for more info.<ul><li><a href="http://www.egarrett.com/motor_sports/fia_tech.jsp">Garrett Turbos</a></li></ul>

4kq

WAY, way old school. Any decent aftermarket ecu will have "anti-lag".

SameerP

is if it weren't expensive to rebuild and was easy to do, and was needed say every 5000 miles, id do it.

Cheers,
Sameer

Gjaime

Every 5k? that would be a pain.. but for the ultimate acceleration why not

SameerP

But ya, i was kinda kidding...but i would do it if the turbo was only good for say 30k.

Cheers,
Sameer