Hey
Can Anybody explain how the antilag works ??????

thanks

 

Well from what I remember reading about it from the WRC rally cars that use it, extra fuel is injected into the exhaust manifold and ignited to keep the turbo spinning. They replace the turbo's every race, at least....

 

I think Ralliart are the only manufacturers to do that on their cars, could be wrong.

On a road car though, Haltech E6K anyway, the timing is retarded a HUGE amount so much so that the combustion almost takes place in the exhaust manifold! You have to keep a close watch on EGTs when doing this.

I could be totally wrong about all of this though

 

Antilag helped my friend to get into the 9's last weekend!
His car would run consistent 10.40's with 7psi at launch.
Hooked it up and was able to get 24psi on launch at 7000rpm.
He ran 9.94 at 138 mph!

crispeed
87TII
9.20@150mph

 

Damn!! all these secrets are coming out!!!

 

yes..the secret is out just watch EGT's cause ive heard people cracking exhaust port sleeves, manifolds cracking, turbo damage occuring too

Steve

 

I don't use Antilag because I can get between 15 and 20 psi on the two-step alone. I already have too much power off the line for the size of tires I'm running plus last Saturday night I decided to give it one more chance without the wheelie bars and I almost flipped it over backwards!
The rear bumper and tow hooks are what stopped it from going all the way over! When it decided to come back to earth the intercoler made contact with the track and broke the brackets that was haolding it and also one of the screws that was holding the head light cover came loose and ended up in the turbo.
Now I need a new compressor wheel and to repair the fiberglass front!

crispeed
87TII
9.20@150mph

 

Most of the WRC teams are running full house antilag with solenoid.

What they do is plumb the BOV to vent into the exhuast manifold before the turbo, they also run a 5th injector, this is usually placed in the tract from the BOV to the exhuast manifold. They retard the timing, add extra fuel, the BOV opens pushing in lotsa fresh air, the 5th injector fires, the flame front from the extra fuel and retarding timing comes thru into the exhuast manifold and it all ignites putting a flame front thru the turbo giving it RPM and therefore boost. the downsides of this is, A) a turbo lasts one rally, and then gets chucked in the bin. B) it melts the tips off the turbine blades. but the upside is you can have boost while off the throttle

for what its worth, The Hyundai WRC team are running 45psi boost on antilag alone. One of the guys in my local car club was helping them with testing when the rally of NZ was on.

 

3 bar!!????!!?!?!?!?!?!??!?!

holy christ.

 

Yeah Rally is crazy.. Some guys boost as high as 60 lbs.

 

Hey Crispeed,
Was that Roger you helped out with antilag? (Japtrix)

Steve

 

Hey Steve!
Actually it was not Roger but he ran two 10.0 passes at 142 mph! They were on a 9 second pass when something I have not seen in a long time happened to them. The ecentric shaft broke right at the rear main journal. They thought they had blown the motor because it was cranking over like it only had compression on one side and a compression test later said there wasn't any compression in the front. After the motor was removed he was turning the motor by hand and someone notice the flywheel was turning but the front pulley was not.
Later inspection of the shaft revealed that it was cracked for a long time before it finally broke in two. It's the first shaft I've seen broken in a turbo motor!


crispeed
87TII
9.20@150mph

 

Don't underestimate the Hyundai Beta engines. The drag racers here in Korea all run 30-50 psi through their Stock block, Stock crank engines with upgrades pistons and rods.

 

Aren't they running Mitsu motors?

 

Thats insane, too bad this costs so much. But hey, they are going for the win :-D

Do titanium or ceramic turbines help kill lag alot? I've heard they use titanium turbines in EVOs, and do they last just as long as normal turbines? I don't think I've ever seen anywhere that sold them, just talking about them and rumors. I only have heard about ceramic for sure and rumour of the titanium in EVOs from a friend.

mmmmmmmm no lag

 

No their copies of the Mitsu engines used in the earlier Hyundais were trash. Now they use their own designed engines in the newer models. Basically over engineered except for the pistons and crappy flowing heads.

 

Cant you just vent the bov into the exhaust and make it work that way without melting the turbo?

 

Crispeed

I'm running the Power FC w/Datalogit software and my ignition is upgraded with the HKS twin power. What can I do to create a two step so I can build boost at the line?

Thanks for the help!

 

What is a two step?

Can you use the antilag on the E6K so as to create only a few extra psi rather then more to ease over taxing the turbo?

Ian

 

Anti lag on the e6k sucks because you can't hold 100% tps. (max is 80%).
Just on the two step alone you should be able to get boost, so i wouldn't even use antilag.

 

Dammit Steve, stay off my account !

 

Can I just say that your freak'n crazy!!!

BTW - what kind of hp and times are you getting with this new set up???

STEPHEN

 

Could you explain your two-step setup and how it works? Thanks.

 

two-step ignition cut, works by intermittently giving power to the coils, thus, the engine is still dumping in fuel, some ignites in the manifold, making the turbo spool.