Just got ALS working on my car

Fooking awsome sound and does actually help reduce lag

I recently changed my turbo which WAS ALS compatable but now have a truck turbo fitted - T4

Anyone know if these are ok on ALS or not ?

I know it has been uprated with the usual 360 deg etc

Any way of telling one way or another ???

 

sounds good mate, i guess one way to tell is if the turbo goes bang and dont work anymore

we still on for tomoz mate??

 

My t4 ran fine with als, same spec as your by the sound of it

 

does this mean ALS on S8 will be available soon?

 

Ryan, Yes

Just in the process of final testing it - on my own car.

Didnt want to risk breaking the turbo as I must test it fully !!!!

Would have been finished already but I havent been too well this week.

 

Used to run ALS on my T4 without any probs
Just have to keep an eye on egt's!

 

ok as i want to run full ALS on my turbo

 

SPADGE,
I have an EGT probe linked back to the ECU.
It will automatically disable ALS on a high preset temperature or add extra fuel to
cool the exhaust gas or advance the ignition to reduce ALS effect.

I just didnt know what the turbo could take.....

Guess I will find out tommorrow !

 

how does the anti lag work? i only have t3 hybrid and i find my lag bad?

andzz

 

Simon
I asked that very same question when i was going to fit it to mine without a Maram shaft! I was told that the turbo would be able to take it providing it wasn't abused and the egt's as previously mentioned were kept as low as poss. Sounds like from what you earlier said that you have that part covered so you should be ok
What are you doing regards a dump valve??

 

Provided your turbo can take it......

ALS works.... (simplified explanation)

When the throttle is closed or nearly closed, an auxilary air valve is opened
to allow a large air flow into the engine.
(Usually an extra or modified idle speed valve)
During this time, a boost limit and an rpm limit are set.
EG. 0 to 10 psi, 5000 rpm (only as an example)
Also, during this time extra fuel is added (about 5-15%) and the ignition is retarded
past TDC (negative advance 5 to 30 degrees)

The result is once enabled and the throttle is closed,
the engine revs high at a limit and the ignition retard and extra fuel continues
burning in the exhaust manifold making the turbo spin as if you were driving.
This creates a small amount of boost or keeps the boost high during gear changes.
Also a poping/banging sound at the exhaust which most people like !!

The draw back is, the turbo, exhaust valves and exhaust manifod experience VERY
high temperatures which could easily damage them.
If not set up correctly or the wrong components are used, it wont last long.

 

SPADGE, Dump valve now fitted - I learned the hard way

 

Cool Probably not as essential as with the roller bearing turbo but deffo worth having it fitted!
Good luck with it

 

ALS reducing lag - fuck me

 

sounds abit dodgy mate if not set up correct, at the end of the day lag is the only draw back with big turbos and or alot of boost, my wife has a frst with the t2 and its a cracking little turbo but soon runs out of steam, wud love to go in a cozzy with a t4 in tho...

andzz

 

dingy, 4.7 o/60 awsome mate, mr norris job
my bike only does it in 3.1

andzz

 

I have the full maram shafted T4, just not the software to run als as i forgot to mention to harvey I wanted it

Simon, I take it you need a complete live map when you put your ecu on?
also, does it have a launch control feature?

 

rephrase that LOL : does it has the blow up diff and box feature?

 

OI leave SI the fook alone!

 

Rene Just thinking for the future

 

Well will see what happens.

S8 has all the features i need.

Also an excellent testing tool, for when fitting new looms.

 

Ryan, why is an ecu a good tester for fitting new looms ?

 

for ease of testing sensors are fullng working, things like throttle sweep is 100%, ECU voltage increase over old loom, idle speed, ISCV %,just saves time that using a tester and going back and forth between the engine bay and cockpit.

 

hope this will be available too?

 

anti lag and a dumpvalve?
surely not?

 

what air device are you using to by pass air simon?

great news that you got it going

 

AT THE MOMENT I am using a modified idle speed valve and have drilled out my throttle body to allow high air flow bypass.
Probally needs a bit more air but for my "sound effects" it is fine.

As for a dump valve, yes you CAN have ALS with it.
Once the manifold air pressure rises above about -5 psi (still in vacuum) the dump valve shuts !!!

Would reduce lag even further without the valve but from my past experience I am keeing it on the car

 

Any ecu on a high power car will require a live map !!!

ALS and launch control will be available very shortly.
In the process of testing them for myself at the moment.
Soon as my latest bodily injuries heal (broken rib) , I will continue !!

 

heres the als valve block i made for my car


but i fooked the diode in there when fucking about one day

will do another one soon

 

Is there a huge difference in using anti-lag or not on say a T34?

 

Gareth,

My ideal solution will be drive by wire - I.E. Throttle body controlled by a stepper motor.

I have engaged an engineer to fit such a motor on a throttle body and once
he has sorted this I will develop the software.

This will allow complete removal of the idle valve, ALS valve, throttle cable.

The benfits will be mapped throttle position versus boost/rpm curves.
This has performance, emissions, and turbo anti surge benefits !!


Andreas,
I am afraid I am not an expert in this area, Just developing my ecu software
to allow others to do ALS.
I would guess ALS is usefull to any turbo provide it has been set up properly
and has the ability to withstand the high temperatures.

Everyone will have different opinions on wether or not ALS is any good or not.

Maybe not on a road car but it sure sounds good

 

SECS, sounds very clever mate,,, a friend in work wants me to check some mapping on his car, running a motec and fly by wire

 

yeah anti lag would be a good thing for me


also can ya explain abit about advanced ignition for reducing some of the lag too and is there any known side affects to that too


i dont want a car i can pose with at mcdonalds ya see

just wanna reduce the dreadfull lag i got on my shite box but keep as much power as poss

 

drive by wire - oh yes, you could utilise the existing TPS for position feedback, are there spare ouputs from the S8 to drive an extra actuator or multiple outputs for a stepper motor, or use a single output going into another stepper drive board which could convert the linear voltage form the output into the rotational pules for the motpor? only experience i've had with stepper motors trying to drive what can be a faitly heacy load (ie the throttle plate) you do need a big motor and power supply. when i was as high school, for my electronics gcse project i made "EIG" electronic index gears form my mountaing bike - worked ok, but u needed a trailer to carry the car battery to drive the motor to work the derailier

maybe a servo, then you could use just one output and use PWM to drive the servo, i know there are servos about that can respont quickly enough and drive sufficient torque from not that a heacy power supply.

would be an interesting one to play with nevertheless.

 

who else cant understand any of that as they aint a NASA engineer

i understood the bike gears bit but then thats what my main profesion is

 

 

GARETH T, That sounds like a scooby to me

b19bal, Ignition advance reduces ALS effect as is makes more of the energy
stay in the cylinder
as the combustions starts earlier and does not have much energy when
the exhaust valve opens.

Dave Henshall, Modern stepper motors are small and powerfull and do not need large power supplies.
The drive by wire addition would be controlled by a serial data link as this is fast and secure
and also accurate and therefore requires NO extra outputs on the ecu.
This serial port already exists on all S8 ecu's

 

 

 

why u want anti lag on a road car is beyond me