col cos1

iTrader: (5)

right due to the drama ive been having in getting a level 8 ecu sorted out+getting a fuel tank sender for my cossie,ive had to put off my booking in at msd to get live mapped(closed loop etc),but my question is should i go coil pack at same time if so whats the advantages,other than a better spark,how much are we talking aswell

my spec is

200 long studded
cosworth racing pistons 7.2.1
t4 hybrid
bd14`s
stage 4 chip
3 bar
verniers
rs500 cooler
mongoose straight through exhaust
k@n induction kit
motorsport leads and hks superdrager platinum plugs

also due to get air injector fitted

Richie.

iTrader: (5)

Coilpack conversion is a must Had mine converted and 'live mapped' in August and the car has run perfect without a single miss fire since

This is what you need

Coil Pack Driver 150
Coil Pack 58
Coil Pack Harness 65
909 Leads 95
071c Plugs 10
Ignition Amplifier 40

To run Closed Loop you also need if yours hasnt got it fitted

Lamda Boss 20
Lamda Sensor 80

To run the air injectors you need

Air Injector Invertor 100

What fuel injectors you using ?

rapidcossie

you know what i think about this col..

my car hasnt missed once and thats been running some very high boost

itsnot alot of cash and it gets rid of the one thing that you had bother with at the rolling road day

col cos1

iTrader: (5)

running greys


i know euan ive put motorsport leads on and the misfires cured i think,saying that i havent revved it to 7k yet lol

col cos1

iTrader: (5)

was also going to get one of mike rainbirds plenum,what like are these

rapidcossie

anything that mike sells is good

Diablo

iTrader: (1)

I am in a similar position to you. I would get the coil pack set up put on the car, and anything else you want, and then get it mapped. Someone can correct me if I am wrong, but I think they can map in more ignition advance with a decent ignition system. So if you do it prior, they will not be able to map the engine to its optimum...

GARETH T

a must

costina

iTrader: (1)

YES YES YES YES

Stu @ M Developments

iTrader: (12)

Just for your information, We no longer need this for the closed loop level 8.

foreigneRS

good stuff stu, still making progress with the old L8

4x4 ste

iTrader: (1)

I had this done to my saff, T4, 850cc injectors 36 psi, 450bhp+ and never had any problems at all, an awesome modification if you ask me.
Also with closed loop fitted it was ultra economical on a motorway run.

Diablo

iTrader: (1)

Stu (or anyone else), is it worth going closed loop on a 600BHP + engine running 1000cc injectors on a L8?

Cheers

4x4 ste

iTrader: (1)

It depends on how you use it mate, Just for an odd blast then probably not, But throw in a few motorway cruises then it soon pays for itself.

Stu @ M Developments

iTrader: (12)

I personally would never have ANY car that doesnt either run closed loop or at least conform to similar sort of emissions specs in its fuelling paramaters, and nor would any motor manufacturere in teh world since the early 1990's. Why? Here's a cut and paste reply i did on another topic...


EVERY
car produced in the world since 1992 has had closed loop fuelling control as standard. The benefits of this system, apart from giving great fuel economy (Mine on 900cc Siemens returned 34.4mpg at 80mph) are as follows:

Feedback control for the ecu.
Instead of normal engine wear causing the normal cosworth bad idle and excess fuelling, my software now compensates for it. No more crappy idle every 3 weeks, in fact, i havent tweaked my idle co or speed for over a year that i recall. lol

Legallity.
You will pass an MOT and UK roadside emissions checks, something that incredibly, a lot of cosworth owners still cannot do. lol

Great Cylinder cleanliness.
Open up a closed loop controlled engine and you will note it is rather clean. None of this crappy black carbon you see baked all over engines that have old fashioned non closed loop fuelling.

Greater oil and engine life.
Overfuelling engines by their very nature dilute the oil and of course this compromises its lubrication ability and then of course your oil thins and the good old YB burns it easier. My last Nurburgring run showed 30laps of the cuircuit, 2000 hard miles and less then 1pint of oil consumed when i got home. Clin d'oeil

My software for closed loop is far better at idle valve and cold control than many tuners non closed loop software as i have dedicated the most time to perfecting it, remember, it was me that did the first ever closed loop for large injectors that worked properly on the Weber L8 with a 3bar in this country with all the correct switch over points and thus doesnt allow a T4 to run 12psi at 15:1 because someone just copied fords old 1991 control maps for a 2bar and std blue injectors with no tweaks for larger injectors, more boost or even for the 3bar map sensor. lol.

We know more about this system than most and as a result our software will not give any crappy hunting when cold or poor driveability. In fact, you will be hard pushed to tell if your engines hot or cold with our closed loop software unless you look at your temp gauge. To some owners this alone is worth the extra cost even if the fuel economy isnt.

Money:
All this extra cash i have from spending less on fuel, less on tuning and less on oil i can spend in the syndicate Saturday night with the other 55 PF users.

Costs:
In a nutshell:
Closed loop chip up to greens = £250.00
Closed loop chip Greys and Blacks = £350.00
Lambda if you dont have one is £80
Exhaust SS Boss if you dont have one is £20
95% of 4wd cars have the wiring as standard from 90> If you dont, i will instruct you how to wire it. Its very simple, live, earth and a signal to pin 2 of ecu.

Hope this has helped.

GARETH T

nice write up stu

IANS2RST

iTrader: (1)

[quote="Stu @ M Developments"]chip for the greys& blacks, does this mean a live map is no longer required?

Stu @ M Developments

iTrader: (12)

Live mapping will always be ultimate, but we do off the shelf closed loop sioftware for most specification engines up to around 420bhp.

glancy2081

another great reply from stu, just one of many reasons i will be getting it mapped by MSD

Miller 3

iTrader: (4)

How much roughly dose it cost for live mapping. / When is it worth changing to different management.

Stu @ M Developments

iTrader: (12)

Full Live mapping with cans, wideband fuelmonitor and a dual trace emulation system costs £500. Closed loop software adds £100 to teh finished price.

Weber can pretty much do all you want of it up to massive power levels, but sometimes teh extra features aftermarket can offer makes the swop worthwhile at any power level. Sometimes your chosen tuner can also dictate a change.