Antilag Video
Evolving Member
Joined: Feb 2005
Posts: 127
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From: San Diego, CA
if you have to ask how hard it is on the manifold and turbo, its too hard on them for you.
if you are just considering something that will generate boost for a quicker launch time in a drag, you should look into launch control systems: (quoted from http://www.ttmtechnical.com/anti_lag_strategy.htm)
if you are just considering something that will generate boost for a quicker launch time in a drag, you should look into launch control systems: (quoted from http://www.ttmtechnical.com/anti_lag_strategy.htm)
A good launch strategy is essential to overcome turbo lag at the start line. A rev limit set to anything from 4000 to maximum revs is employed through a wheel mounted switch or through the clutch pedal. When the throttle is floored and the clutch is fully depressed, the launch limit is in effect and the engine will not pass the set rev limit. Spark is cut to one cylinder at a time to hold the engine revs. With spark alternatively being held from the plugs, unburned fuel is passed into the exhaust along with the air from the cylinder. Once in the exhaust manifold, the hot air/fuel mix ignites and drives the turbo turbine. Because spark isn’t retarded using this method, the exhaust gases are kept reasonably cool. Therefore, afterburn combustion is slow and incomplete, so turbo temps don’t reach dangerous levels.
Evolving Member
Joined: Oct 2003
Posts: 319
Likes: 0
From: Streamwood IL (bartlett/schaumburg)
Originally Posted by Mike@Forge
Here's a video of an Audi RS4 with an anti-lag system! (Among many other mods.)
http://www.323gtr.com/media/oz_mpeg1_web.mpg
(And yes he's riding the rev limiter in order to allow the car to catch up with itself.
)
http://www.323gtr.com/media/oz_mpeg1_web.mpg
(And yes he's riding the rev limiter in order to allow the car to catch up with itself.
)That car doesnt have anti lag, I know the owner from other forums.
Evolved Member
Joined: Oct 2004
Posts: 1,025
Likes: 0
From: NA
Originally Posted by rezo
if you have to ask how hard it is on the manifold and turbo, its too hard on them for you.
if you are just considering something that will generate boost for a quicker launch time in a drag, you should look into launch control systems: (quoted from http://www.ttmtechnical.com/anti_lag_strategy.htm)
if you are just considering something that will generate boost for a quicker launch time in a drag, you should look into launch control systems: (quoted from http://www.ttmtechnical.com/anti_lag_strategy.htm)
Flamethrower...
If you just want the flames, do like the rednecks do...
Drill a hole into your tailpipe
Insert spark plug
Hotwire the plug (with a switch) to the battery
run the car super rich @ high RPM
The unburnt fuel will ignite from the jiuce the plug puts out. Instant flame
I've seen a chevy S-10 throw out five foot flames
Drill a hole into your tailpipe
Insert spark plug
Hotwire the plug (with a switch) to the battery
run the car super rich @ high RPM
The unburnt fuel will ignite from the jiuce the plug puts out. Instant flame
I've seen a chevy S-10 throw out five foot flames
Account Disabled
Joined: Jan 2005
Posts: 84
Likes: 0
From: Norwood, MA
The newer TD05HR are designed around the fact that they need to be used with aggressive antilag in group N competition. The manifold is also designed with that in mind. There are so many levels of antilag and so many different ways to map it that saying "it would destroy your manifold and turbo in 100 miles" is a huge overstatement. A typical group N car with a moderately aggressive map will get over 1000 stage miles out of a turbo. Antilag doesn't have to bang to keep the turbo spooled, it just has to produce exhaust velocity. The Impreza WRC05 produces 3 bar of boost at 1800 rpm with few to no bangs. The RS4 shown in the video just has a clutch triggered 2 step rev limiter. Bee*R of japan makes one that I think works on the 4G63 and would produce big bangs and flat shift capability as well as a MSD DIS-2, both of which are a few hundred dollars. The DIS-2 is a little more mild at launch but the cars I have installed it on have produced cannon like bangs in between shifts
Most of the ralley guys inject the fuel directly into the manifold. If you pull your heat shield you can see the anti-lag bosses that they tap for this very purpose.
Keep in mind ralley teams replace their turbos after every race, so if your gonna try and run this on the street prepare to replace your turbo fruquently. Your essientially turning your turbo into a jet engine and it will not last long.
BTW..what rims are on that Version VII above. Their beautiful.
Keep in mind ralley teams replace their turbos after every race, so if your gonna try and run this on the street prepare to replace your turbo fruquently. Your essientially turning your turbo into a jet engine and it will not last long.
BTW..what rims are on that Version VII above. Their beautiful.
Account Disabled
Joined: Jan 2005
Posts: 84
Likes: 0
From: Norwood, MA
There is no fuel injected into the manifold on the IV-VII. The air is taken from before the throttle body, then plumbed directly into the exhaust manifold via open/closed solonoid. This way, the throttle doesn't have to be locked at 10-15%. The driveability is much better especially in transit when the ALS is turned off. If you run a mild ALS setup for autocross and track days its not a problem. The difference between mild and aggressive antilag is huge. Also, when turned off, the ALS acts as a rapid turbine cool down so...
Super agressive ALS on Grp N Evo VII
http://www.autosport.cz/autosport/ra...2005trojan.mpg
Medium-Agressive ALS on Evo VII Grp N
http://www.autosport.cz/autosport/ra...v2005marek.mpg
Mild ALS on Grp N Evo VII
http://www.autosport.cz/autosport/ra...05tosovsky.mpg
Super agressive ALS on Grp N Evo VII
http://www.autosport.cz/autosport/ra...2005trojan.mpg
Medium-Agressive ALS on Evo VII Grp N
http://www.autosport.cz/autosport/ra...v2005marek.mpg
Mild ALS on Grp N Evo VII
http://www.autosport.cz/autosport/ra...05tosovsky.mpg
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