megajolt maps

[hilly413]

does anyone have or know where i can find a base map for a ford v6 or can give me an idiots guide to writing a map

thanks

[MrSpeedy]

I believe there are several on the Megasquirt/Jolt forums here - www.megamanual.com/index.html , although I haven't actually looked yet as I'm no where near that stage!

[prey]

how much are you hoping for from a 'base map' - as the car has always started and run ok on the map that comes on the mj on the ones ive done.

[hilly413]

ive had it from america and from what i can gather i have to format and do it all from scratch, i havent as yet plugged it in an looked

i

[prey]

it will come with a 'base map' thats sometimes already on there, if not it will be on the disc with it - you can put that on and it will get you running.

[scimjim]

which Ford V6 Hilly? I'm looking for one for the 3 litre Essex. A base map is well and good (it'll run on the edis at 10 deg without the MJ plugged in) but I'd like to save some rolling road time as well as having "road" and "sprint" maps and learning how to modify it as the engine is developed through injection (and a change to MS) and supercharging.

[hilly413]

4L out of an explorer

[ejenner]

A map from someone elses ECU will work ok but for the best result you're better off doing your own.

So load the default map off the CD-Rom and go from there.

Your best resource in this case would be some form of knock detection. Either by bolting a knock sensor onto the block near where combustion happens with a box to read the signal or cheaper is to have a friend listening to the engine using a set of headphones



You start by advancing a few load points where it looks like a sensible place to begin and smooth out around the loadpoint so there's no spikes in the map. See if you have knock. If there is knock then you've gone too far. No knock means advance a bit more. When you find the knock threshold you must wind it back a degree or two. Repeat that for the whole map in as many load points as you can access and then just smooth the whole map.

[hilly413]

Mar 22, 2014 10:03:26 GMT ejenner said:

A map from someone elses ECU will work ok but for the best result you're better off doing your own.

So load the default map off the CD-Rom and go from there.

Your best resource in this case would be some form of knock detection. Either by bolting a knock sensor onto the block near where combustion happens with a box to read the signal or cheaper is to have a friend listening to the engine using a set of headphones



You start by advancing a few load points where it looks like a sensible place to begin and smooth out around the loadpoint so there's no spikes in the map. See if you have knock. If there is knock then you've gone too far. No knock means advance a bit more. When you find the knock threshold you must wind it back a degree or two. Repeat that for the whole map in as many load points as you can access and then just smooth the whole map.

good tip thanks, re the cd i didnt get one with it and the company in america are ignoring my questions about it

[hilly413]

Mar 22, 2014 10:03:26 GMT ejenner said:

A map from someone elses ECU will work ok but for the best result you're better off doing your own.

So load the default map off the CD-Rom and go from there.

Your best resource in this case would be some form of knock detection. Either by bolting a knock sensor onto the block near where combustion happens with a box to read the signal or cheaper is to have a friend listening to the engine using a set of headphones



You start by advancing a few load points where it looks like a sensible place to begin and smooth out around the loadpoint so there's no spikes in the map. See if you have knock. If there is knock then you've gone too far. No knock means advance a bit more. When you find the knock threshold you must wind it back a degree or two. Repeat that for the whole map in as many load points as you can access and then just smooth the whole map.

been looking into this knock sensor hes made, does anyone know if a knock sensor wired up to a electrical recording equipment will do the same thing

[RobinJI]

I've heard of people making them using the amplifier circuit from a Maplins crystal radio kit before, so I'd imagine it would work yeah.

Edit: Thinking about it, on a V6 I think I'd make 2 (one for each bank) and wire them so you're listening in stereo.