Anti-Lag System?

[DriftDreams1]

hey what's up, I was just wondering about Anti-Lag/Misfire systems, how they work, installed, etc...

I read that they send intentional backfires through the exhaust, keeping the turbo spooled (WRC cars) for turns, eliminating left foot braking, falling off of boost on corner exit, stuff like that.

How are they wired and/or installed? Can you toggle the function on/off (for street use, they put excess stress on turbos) and does anybody have a setup like this?

Thanks

Moncef

[Spesh]

I dont know so much about anti lag aside from it eats turbos. By missfire systems I assume you mean something like the bee*r power builder. That works by grounding the CAS signal at a preset (by you) rpm for an adjustable amount of time. It is, in effect, a crude means of rpm limiting by cutting the spark. This means that unburnt fuel will leave the engine to be either ignited by heat in the manifold/turbo or by ignition overlap when the spark is restored.

Makes nice noises, spools the turbo a little... but

Eats manifold gaskets, kills SR's without rocker arm stoppers and blows the wheel of the exhaust turbine. It will also blow open the exhaust valves a little which with hydralic lifters is a bad thing as the lifters will 'pump' up as they overextend causing general running problems. In extreme cases, if the 'gain' is set too high it can also cause borewash from the unburnt fuel.

I nice toy, but expensive in many ways

[elks 240]

If you use a big shaft turbo it won't "eat" the turbo up as bad. You have a set rpm you want to rev to then you fatten up the fuel and retard timing a bunch. That basically creates explosions in the turbo which sppol it up super fast. I know on my buddies shop car by the 3rd bounce off the rev limiter he is at 24lbs of boost on the line. Now if that is too much boost for what you want to launch at ( drag cars ) simply lean it out a little and add timing back in till you get the boost you want. These will snap the shafts with small turbo's you have to have the bigger turbo's to do this. And unless you are an 9 sec car or less I wouldn't worry about it. More damage than good.

[Defiant]

You're essentially setting off a bomb in the exhaust snail. Sound like a good plan?Racecars have to last hours. Your car will probably have to last more than a decade (for those lucky ducks whose car hasn't already lasted that long). All description of desecration and abuse goes on in competition that seems interesting. Almost none of it translates to our world on this side of the barricades.

[DriftDreams1]

You're essentially setting off a bomb in the exhaust snail. Sound like a good plan?Racecars have to last hours. Your car will probably have to last more than a decade (for those lucky ducks whose car hasn't already lasted that long). All description of desecration and abuse goes on in competition that seems interesting. Almost none of it translates to our world on this side of the barricades.

well put. Thanks guys for the info, I've seen R33's and 180sx's with the bee*R rev limiter/power builder, cool flames and sound but...

whoa I didn't know they destroyed so many SR components. geeze!

thanks again.

Moncef