Anti-lag??????
Turbo Mini Forums

what ecu is that jimster? I seem to remember you run emerald.

thats right I use emerald

Team Racing

I think its noise polution!! lol

Its proper noisy :)

BANG BANG

as the american's call it LOL!

alex

AlexF

Jimster, please could you tell me mor about your emerald ecu. ie, where to get one from, how much, do you still use the dizzy and will it work with the su carb or do you need to go injection???

Any help would be great. I've been told the omex ecu can be used for anti-lag, anyone know if this is true???

Cheers, Kev

Its only a bit of metal. If it blows it blows!

http://www.putfile.com/mini300bhp

do a search in google mate i found it very easily, its quite pricey tho around 600 quid 4 parts if i remeber right then you got to have it fitted.

speed is the best rush i have ever had!!!

add me lanxter@hotmail.com

http://www.emeraldm3d.com/

I don't use a dizzy, but I still run the SU, not sure how this will work with antilag, (if at all), so may have to got full injection, but then your opening a different can of worms.

Team Racing

it looked like a can of multicoloured worms when you were wiring it in

I guess no reason why it wouldnt work with a carb.

Mixture will still be drawn in. The main control of antilag is in ignition timing.
The throttle will need to be held open a bit for a fast idle, to let enough air/fuel in for it to work properly, but that would be easy enough done with the choke.

9.85 @ 145mph
202mph standing mile
speed didn't kill me, but taxation probably will

or a stepper motor...

like certain A-series carbs had!

alex

AlexF

I've read to run antilag you need more fuel when it is switched on, so maybe a 5th injector like the r5 boys run???

Its only a bit of metal. If it blows it blows!

http://www.putfile.com/mini300bhp

jim did you install that yourself and how hard was it to do as most companies charge around 2k fitted, seems a bit steep

I installed the ECU myself, turbodave helped me find the sensors. I took my time, it wasn't too bad. And Emerald are great if you get problems, just give them a call

Team Racing

I hope that I don´t hurt your feelings but I suggest you sit down and THINK hard. What is the main reason for anti-lag system ? Silly boost ? What is your target boost level ? What kind of transmission are you going to have ? What tyres ? Where are you going to use the power ? In the pub ???

You said that you are new here. There are a lot of guys here on the forum that have years of experience with turbo minis, some of which do have big hp numbers. You should listen what they have to say. It´s good to have enthusiasm but read on, please.

First of all, antilag is mostly used for serious rally/race cars with more or less unlimited budget. It means that the engine, turbos and rest of the drivetrain are built as a package, to transfer the instant power. Gearchange is usually sequential. The turbo mods alone will cost you big money, not to mention ECU, mods to the engine, etc.

A simple example: Mini cylinder head. Antilag system will increase EGT and you will have a lot of strain on seats, valves and manifold. Mini exhaust seats are famous for recession, cracking etc., especially with modern fuels. Race and rally cars run inserts that are more tolerant to the intended use.

Imagine the scenario, you have active antilag, slicks, and a couple of psi boost. You will need a s/c box. They come with a tall 1st gear ratio. A couple of thousands revs and let go of the clutch. Say you have instant 100+ lbft torque going through the stationary drivetrain. I doubt very much that you will have traction to pull you away from the start line. It´s either a lot of smoke (or a lot of broken parts...).

Ask anyone who as done e.g. drag racing in a Mini. It is difficult to get good traction off the line, slicks help a lot but still it is a problem. I don´t know how much you have turbocharged street cars drag racing in UK but we have a lot of those over here. They don´t look that impressive off line line, rather modest revs and wheel spin. But once they got going it was worth seeing. The point being that they had enough power to fry any slicks but too much wheel spin kills ET. Simple as that.

Years ago I did a lot of measurement (0-100 km/h) with my turbo mini and even if wheel spinning felt good to me the clock did not like it at all. You loose 0,5 - 1 sec with too much wheel spin.

The bottom line ? Add all the cost up and think again. If you have that much cash to spend I suggest you get in touch with a reputable shop that does hybrid turbos. I would definitely forget T3 and use a T2 as a basis. They are small enough to spool fast and can be made to support big boost/hp.

IIRC you can't run anti lag on a t2 as you can't buy the uprated internals for them.

But as you say... its time to talk to a turbo specialilst at that stage!

Alex

AlexF

You dont need anti lag on a t2.... funny that

+ what does iirc mean?

if i remember correctly

Maybe I was a bit unclear with the reference to T2: the idea is to forget the antilag and use a properly sized turbo. Hybrid unit because they are tailored to suit the intended purpose within the realistic limits.

Jukka it was clear what you ment.

My comment was aimed at alex who seemed suprised there was a lack of anti lag parts available for the the t2.

But then in his world of t3's i dont suppose he pulls his head out of the sand to relise the benifits of a correctly sized turbocharger

Jukka, thanks for your reply. You seem to know what you are talking about, so maybe you could tell me how I can rig up an antilag???

-Why do I want anti-lag? For fun, why else? Thats why I built my Mini. Lets face it, their pritty uesless for anything else.

-Silly boost ? What is your target boost level ? I've just finnished running it it in, Set at 10psi at the mo. Planning to run 30ish when set up on the rollers. It should have about 200bhp@15-20psi. I'll let you know when it comes off the rollers.

-What kind of transmission are you going to have? It'll hold up.

-What tyres? Yokes on the road and slicks for the track.

-Where are you going to use the power? In the pub??? I don't know yet, but it'll be FUN!!! The way I look at it, you can always wind the boost down if its got to much power. Anyway, Id rather have something overpowered that underpowered. All adds to that FUN factor.

Any more info would be great boys.


Cheers, Kev

Its only a bit of metal. If it blows it blows!

http://www.putfile.com/mini300bhp

30psi!! nice! whats your compression ratio?

Team Racing

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

Sorry, but have no info about anti-lag. Like I already explained I don?t think Mini engine has the material spec to withstand the thermal loads. It is a late 40?s / early 50?s design. OK, materials are a bit better nowadays but still it is only an A-series engine. I tend to think in practical terms and therefore don?t feel like spending time on "worthless" ideas. I feel that one off hybrid turbo will give you all that you require without anti lag system.

Your 30 psi boost target is ambitious, I wish you luck. Such boost level will require SERIOUS amount of cash in engine/trans build, and still I am not convinced about the longevity issue.

I have run my Mini at 22 psi+ only once, that was an accident with boost control solenoid and not intentionally. My boost gauge only goes to 1,5 bar but the needle went past that mark before I reacted... anyway it did feel rather powerful.

Your t2 doesn't boost on idle does it??!

theroically I can with a t3

Alex

AlexF