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AEM Engine Mangmt System


fisherjohn

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Originally posted by fisherjohn

If so does that mean that a HKS Boost controller is no longer

required or cannot be used in conjunction.

Rgds

 

You can control boost with the AEM or with an electronic boost controller, your choice I beleive.

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I fitted one to my car which I believe to be the only one in the UK, can't believe other people haven't fitted one yet...

 

You can use the AEM to control boost if needed, only trouble is you wont be able to choose from different boost levels like this...so you'd still need to use a boost controller really.

 

 

Paul

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Leon is running one.

 

You can use either type of boost controller but a solenoid linked to the AEM would be preferred as this with compensate for high intake temps or coolant temperatures, so is a great safety feature. You can run boost control OK with CLC set up. The downside of the solenoid is that you are stuck with the boost settings selected in the ecu programme, where as with a EBC you can twiddle a knob & blow your car up;) The ECU/Solenoid route is vastly superior but takes an awful lot of setting up to it's full potenial.

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it seems to make more sence long term rather than getting the piggyback electronics.go for the ecu. they do rave about it in america.

 

has anyone got much expeirience tuning them or is it a case of learing yourself.there seems to be a few big power supras in england.

 

what sort of piggy/standalone electronics does it get rid of?

 

fcd

s-afc

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Leon does offer mapping of all engine management systems now.

 

What it removes the need for :

Fuel Cut Defencer

Speed Limit Defencer

SAFC

Ignition Timing Controller

Electronic Boost Controller

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Originally posted by Wez

You can wire a switch to one of the spare inputs and use this to switch between to boost pressures, kinda like a valet mode, check out :-

 

http://www.aempower.com/bbs

 

You can even download the full software and base maps, this is going to be my next mod :flame Dev

 

Regards

Wez

 

 

Have you an idea of the cost of an AEM install, assuming your not doing this yourself?

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Not sure on the total cost but the unit is approx 1200, Paul Whiffin has one already installed so might be able to answer this question more accuratly.

 

The unit is plug and play and the base maps are setup for UK/US cars so you need to convert the maps to 440cc injectors, the software can do this for you though so shouldn`t be to much of an issue.

 

It is also recommended that you replace the MAP sensor which is not very expensive and if you are running high power like Paul then ignition amplifers are also recommended which can be pricey, on a stock car or BPU you should be ok, i will let you know :D

 

I think most of the costs are down to mapping and rolling road time, my mate does mapping and he gets rolling road time at power engineering so hopefully shouldn`t cost me to much :flame Dev

 

It does run waisted spark instead of the stock direct fire thats why the ignition amps are needed for high power builds.

 

:thumbs:

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Originally posted by Wez

Not sure on the total cost but the unit is approx 1200, Paul Whiffin has one already installed so might be able to answer this question more accuratly.

 

The unit is plug and play and the base maps are setup for UK/US cars so you need to convert the maps to 440cc injectors, the software can do this for you though so shouldn`t be to much of an issue.

 

It is also recommended that you replace the MAP sensor which is not very expensive and if you are running high power like Paul then ignition amplifers are also recommended which can be pricey, on a stock car or BPU you should be ok, i will let you know :D

 

I think most of the costs are down to mapping and rolling road time, my mate does mapping and he gets rolling road time at power engineering so hopefully shouldn`t cost me to much :flame Dev

 

It does run waisted spark instead of the stock direct fire thats why the ignition amps are needed for high power builds.

 

:thumbs:

 

You must have figure in your head though, in excess of 2K I would have thought to get it right?

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Well its £1300 incl VAT for ECU and GM 3 Bar MAP sensor, the rest of the cost is going to be mapping at my level of mods and my mate is gonna do that for me.

 

I will prob have to pay for some rolling road time but he can map most of it on the road and then fine tune on the rollers.

 

An ignition amp shouldn`t be needed at this level, hopefully :D

 

:flame Dev

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so whats the checklist you need

 

aem ecu £1200+vat (pauls price)

 

what other bits you need to plug in. could you run it on stock twins for time been. paul set his up on the road and fine tuned on rollers. would it be a waste on stock twins. you could have a go at importing one from america $1300 i know there is taxes to pay, could work out cheaper.

 

they do rave about the aem ecu

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Guys don't get to sucked in here.

 

AEM £1200

5 Bar MAP & Boost Solenoid £200

Proper Wideband & Analyser £500+

 

Even if you dumped the Wideband, I think realistically £2-2.5K

 

Also remember that cold start is a bitch to set up on road cars. It will be a long slog to get it anywhere near Mr Toyota's.

 

Gavin, I think the AEM would work tremendously well for you.

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Paul is now selling the AEM for £1050 +VAT

 

The AEM will work on a stock supra and use all the stock sensors, the stock MAP is only rated to 18psi and therefore not suitable for anything above this.

 

The AEM setup on the stock turbos is also supposed to be better than the stock ECU and give less of a drop and a smoother transition from 1 to 2.

 

The wideband helps with setup and is not a must have.

 

I thought power engineering had a 4wd roller rated over 500bhp, they can also rolling road 2wd cars on the same unit as the 2wd rollers they have are not man enough for high powered cars.

 

:thumbs:

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How are you going to map the fueling without a wideband? PE were limiting powerful RWD cars to 300BHP last I heard so as not to overheat the rollers.

 

As I said £2-2.5K. It is a good idea for certain people but at BPU+ I would stick with the stock ecu for the nice cold start, idle & smooth driving. Getting a road car map spoy on will take many many costly mapping hours.

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Thor I hear what you are saying and maybe it will cost £2 - 2.5 but I am getting mine mapped by a mate

 

If you are going BPU levels and are not planning to go further then it would be overkill but in the long term I am planning on going single.

 

I thought most rolling road facilities have the ability measure AF at the same time?

 

Is Paul the only one running AEM so far?

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No Leon is running one.

 

You won't be able to do all the mapping on a RR. You will need hours on the road fine tuning to make it drivable. This is where the Wideband will be invaluable.

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hey thundergod, assuming you have a good quality well calribeted wideband setupl how muich of the fuel ampping could you do yourself on the road, rea;uistically speaking? I'm gonna go aem on my Mk3 once theyt release it, but I was banking on being bale to do most of the work mysel;f at £0 per hpour if you get what I mean . . .

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Originally posted by Adam W

hey thundergod, assuming you have a good quality well calribeted wideband setupl how muich of the fuel ampping could you do yourself on the road, rea;uistically speaking? I'm gonna go aem on my Mk3 once theyt release it, but I was banking on being bale to do most of the work mysel;f at £0 per hpour if you get what I mean . . .

 

You gunna edit that one to make sense!?? :p

 

Were you on the ale or just typing faster than your brain could keep up with! :D

 

I think you answer would be dependent on how good the base MK3 map/configuration is.

 

Certainly it would be good to have a go yourself, but it maybe worthwhile making sure a friendly tuner is available for a bit of tech support...

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Originally posted by Adam W

hey thundergod, assuming you have a good quality well calribeted wideband setupl how muich of the fuel ampping could you do yourself on the road, rea;uistically speaking? I'm gonna go aem on my Mk3 once theyt release it, but I was banking on being bale to do most of the work mysel;f at £0 per hpour if you get what I mean . . .

 

Adam I haven't tried a AEM, only I do know the the map that was with Leon's was a piece of Sh1te. Probably due to the different grades of fuel. Most modern ECU's can link to a wideband for a form of auto tune, where the ECU is linked to a wideband & then you set a target AFR & the ECU will self programme to that whilst you drive around at the certain load sites until it is complete. This seems to work ok but it will need fine tuning. I don't know if the AEM has this. What you will find are little anomalies in the load sites which need another load site installed to overcome a glitch. These glitches whilst not affecting outright performance, will irritate like hell in everyday driving. Adding these extra site & fine tuning is where it get's tricky. Also, cold start really is a bitch to set up. Boost control is a black art. I am sure you could get a good map Adam, but IMHO I would get a specialist do the initial road tune, then fine tune it on the car over time. It will cost approx. £300 for a day to road tune.

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Apologies for my slight lack of coordination earlier :rolleyes:

 

I'm 99% sure the AEM does have automapping, they're also bringing out their own Bosch LSU wideband setup which is meant to be a fair bit cheaper than the current competition. I was thinking along the lines of doig the initial setup myself and then getting it checked and finshed off by a pro. But as you say the fine tuning is the time consuming bit so it might be more economical to do it the other way round as you suggest.

 

Did Leon tune his setup himself, or farm it out?

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