Ignition map help
Turbo Mini Forums

I have a canems ecu this I'm the map it came with (in the picture I have added) would this map be OK to drive / run in the engine?
It drives good with this map no problems when on boost I have not gave it any full throttle yet just normal driving.
https://flic.kr/p/2pNrvYB
https://flic.kr/p/2pNrvYB

Your MAP only allows for 20kPa (3psi) of boost and will lock at 26 degree ignition.

Below is a copy of my old MAP for a 1293cc running about 14psi.

What the mind can conceive the mini can achieve
MITP 2012 17.01 seconds 1/4 mile against "The Don"
MITP 2013 16.83 seconds 1/4 mile

Its fine to run in below 5k rpm, but as Lee rightly states, the map needs expanding. Probably to about 3 psi above your target boost, then have it mapped properly with knock sensing.

OK thanks for the replies the plan is to drive it for a bit to run the engine in and then get it set up on the rolling road. I have not gone over 4k rpm.

I don't understand the KPA part how can you tell from my graph the map only allows for 20KPA?

Thanks

Anything under 100kPA is classed as n/a with 100kpa technically being wide open throttle.

Anything over 100kPa is classed as boost.

So 200kPa would be 1 bar of boost pressure

110kPa = 0.1Bar = 1.46psi
150kpa = 0.5Bar = 7.3psi
200kPa = 1Bar = 14.6psi

What the mind can conceive the mini can achieve
MITP 2012 17.01 seconds 1/4 mile against "The Don"
MITP 2013 16.83 seconds 1/4 mile

Edited by stevieturbo on 2nd May, 2024.

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

OK thanks. So do I set it up by driving the car with the laptop on data logging and seeing what the map sensor reads?

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

I'd also look at what map sensor it is, if it only goes upto 120kpa, it may be a generic GM sensor. You'll need a 3bar map sensor ideally.

Testing will show everything he needs to know.

But given the table is so low, it's very possible the current sensor is useless

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

OK thanks. I didn't even think about the MAP sensori have bought a 3 bar sensor.

I have had it set up on the dyno now. Only thing with my map sensor it's not registering boost Only vacuum I tested it with a brake vac tool and it worked correctly. So I have ordered a dearer 3bar sensor one what Haltech because all the other cheaper ones look all the same.
The ignition is set up on 2D at the moment until I can go back.
It's making 141bhp.

It was driving fine for a couple of days after but now I get a misfire at about 3k under load in 3rd.

it's fine at them revs in the lower gears or if I drive say half throttle though the whole rev range.

Any ideas what this could be?
It's like it's hitting the rev limiter or feels a bit like launch control. My ignition map is retarded quite a bit around that RPM but it was fine for a couple of days ago.

Ignition map.. https://flic.kr/p/2pXfJrV

I have tried to record it I'm am letting off when it happens but you can basically keep you foot down and the engine will not rev past 4k.

Thanks

The timing is running off the very bottom row. Map sensor is switched off

80 kPA is still within the normally aspirated range as 100kpa is throttle wide open.
Anything above 100kPA is boost.

Edited by lee.pb on 19th Jun, 2024.

What the mind can conceive the mini can achieve
MITP 2012 17.01 seconds 1/4 mile against "The Don"
MITP 2013 16.83 seconds 1/4 mile

I have re-sealed the dash pot and the stutter/misfire disappeared now