Discussion
Anyone have an Emerald on there car, thinking about putting one on as it means I can use a local guy to map the car and set it up when required instead of having to get the car down South somewhere everytime (I'm in Aberdeenshire). The woman I spoke to at Emerald said they have base maps which allow it to just plug and play however as mine is a 4.6l with 4.2 induction I want to make sure that it would be ok and not cause any problems.
The map currently on the MBE is a load of crap with a big hole in the middle of it so I need to do something with it as its making the car depressing to drive and causing drive train problems, lots of banging going on underneath the car when the engine hesitates.
The map currently on the MBE is a load of crap with a big hole in the middle of it so I need to do something with it as its making the car depressing to drive and causing drive train problems, lots of banging going on underneath the car when the engine hesitates.
cerbfan said:
Austec racing, there are older posts on here about, done about 3 years ago. The initial map on it was ok, then it went back after a head gasket went and was remapped, never been right since then but I'm not taking it all the way back there again.
Still not exactly.on your door step, but why not speak to Joo, he has started up by himself again...I've probably done more emeralds into cerbs than anyone .. they come with an adaptor loom that goes straight onto the cerb loom and they're a doddle to map. The only thing you'll have to do if you want to run closed loop is go for a wideband and controller or a zirconia narrowband. Other than that it's pretty much plug and play as they say.
Gray_101 said:
So whats the school of thought when it comes to ecu s ? i thought the MBE was more than a capable package for the AJP.
correct me if im wrong but doesnt the MBE give mapping points ever 250 rpm ? how is the emerald better ?
The MBE is fine, but cerbfan is in aberdeen .. even getting to me is a trek and i'm the closest of the cerb MBE remappers (there's only 3 of us remember). an emerald can be mapped locally to him so I guess that's a very real attraction.correct me if im wrong but doesnt the MBE give mapping points ever 250 rpm ? how is the emerald better ?
The emerald also has certain advantages for later on if you so desire .. traction control, triple map switching, self mapping fuelling off a wideband, can drive an IACV if you want one, etc etc you can also move the load and rpm sites around to suit your engine .. in the cerb Mbe you can shift the load sites but the rpm is fixed at 250rpm intervals.
OK, cheers for the info, take it I'm right in thinking that Spitfire is Jules ex Trackcar solutions?
So the Emerald can just be run open loop ok without Lambdas initially at least, do you think it would be ok to run it for a while with the pre-loaded map on prior to getting it mapped, its basically just to get me out of a hole and will be quicker than fixing the other car.
As an aside cars are a pain in the arse almost without exception, they all end up going wrong at bloody once when you have the least amount of time to sort them out!!
So the Emerald can just be run open loop ok without Lambdas initially at least, do you think it would be ok to run it for a while with the pre-loaded map on prior to getting it mapped, its basically just to get me out of a hole and will be quicker than fixing the other car.
As an aside cars are a pain in the arse almost without exception, they all end up going wrong at bloody once when you have the least amount of time to sort them out!!
spitfire4v8 said:
The emerald also has certain advantages for later on if you so desire .. traction control, triple map switching, self mapping fuelling off a wideband, can drive an IACV if you want one, etc etc you can also move the load and rpm sites around to suit your engine .. in the cerb Mbe you can shift the load sites but the rpm is fixed at 250rpm intervals.
Sounds very intresting... and maybe some thing to look into at a later date, but i must admit i was very pleased with the map you did me on my 4.2 with the MBE.Ive got a emerald on mine. Its very easy to interrogate and you can easily modify the maps yourself if you think you know what you are doing? It only has one TPS input so you cannot use the TPS on both banks so you have to be very sure your throttle linkage is set up properly. other than that it really does seem a good piece of kit and cheap, but its only as good as the guy doing the mapping so make sure you choose them carefully.
spitfire4v8 said:
Gray_101 said:
So whats the school of thought when it comes to ecu s ? i thought the MBE was more than a capable package for the AJP.
correct me if im wrong but doesnt the MBE give mapping points ever 250 rpm ? how is the emerald better ?
The MBE is fine, but cerbfan is in aberdeen .. even getting to me is a trek and i'm the closest of the cerb MBE remappers (there's only 3 of us remember). an emerald can be mapped locally to him so I guess that's a very real attraction.correct me if im wrong but doesnt the MBE give mapping points ever 250 rpm ? how is the emerald better ?
The emerald also has certain advantages for later on if you so desire .. traction control, triple map switching, self mapping fuelling off a wideband, can drive an IACV if you want one, etc etc you can also move the load and rpm sites around to suit your engine .. in the cerb Mbe you can shift the load sites but the rpm is fixed at 250rpm intervals.
I was just off the phone to a local chap who does mainly Honda stuff but has a good reputation for other rare cars and he thinks the DTA ECU is a better option at around the same cost. Can any one confirm or have they had any dealing with this kit?
I see it has Sequential injection would this be of benefit to An AJP?
http://www.dtafast.co.uk/S_80_PRO.htm
Edited by scotty_d on Monday 11th June 11:53
There are plenty of more complex ECU out there, I thought DTA were more expensive than the Emerald when I checked. I think you will need a camshaft phase sensor to get the sequential injection to work. If there is not a pre-made loom available make sure you have built in the additional cost of making this or you better be handy with a soldering iron.
I would stick to a tried and tested method if you dont want to get to involved.
It really is the MAPPER THAT MAKES THE DIFFERENCE you can have the best kit in the world but if the guy doesnt know the engine or the kit that well you could end up with a dog. If its Emerald you choose make the effort and go to either Julian or direct to Dave Walker at Emerald. He mapped mine and got 535bhp from the my 4.5 AJP engine.
I would stick to a tried and tested method if you dont want to get to involved.
It really is the MAPPER THAT MAKES THE DIFFERENCE you can have the best kit in the world but if the guy doesnt know the engine or the kit that well you could end up with a dog. If its Emerald you choose make the effort and go to either Julian or direct to Dave Walker at Emerald. He mapped mine and got 535bhp from the my 4.5 AJP engine.
535bhp 
is that a standard 4.5, must be the most powerfull ever that being the case.
Tweaked my throttle pots blind this morning out of shear frustration before driving to work and managed to make it drive 10 times better so at least the urgency of getting the ECU changed has receded a little bit.
Where are Emerald based? Let me guess South England.
is that a standard 4.5, must be the most powerfull ever that being the case.Tweaked my throttle pots blind this morning out of shear frustration before driving to work and managed to make it drive 10 times better so at least the urgency of getting the ECU changed has receded a little bit.
Where are Emerald based? Let me guess South England.
cerbfan said:
535bhp is that a standard 4.5, must be the most powerfull ever that being the case.
Tweaked my throttle pots blind this morning out of shear frustration before driving to work and managed to make it drive 10 times better so at least the urgency of getting the ECU changed has receded a little bit.
Where are Emerald based? Let me guess South England.
Hi who are you going to be using to Map yours? I am in Ayrshire and i have phoned a few places i know on the west coast but not too many seem keen on Emerald as they hated there old units. Unsure what the K6 is like to work with? is that a standard 4.5, must be the most powerfull ever that being the case.Tweaked my throttle pots blind this morning out of shear frustration before driving to work and managed to make it drive 10 times better so at least the urgency of getting the ECU changed has receded a little bit.
Where are Emerald based? Let me guess South England.
Cheers Scotty
If I get it done locally was going to use Jim King in Inverurie although I have not been to speak to him yet but seems to get a good reputation and Emerald say they have a sold a lot of ECU's to himm so has plenty of experience. Other option is to use Jules which is probably the best option bar the travelling.
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