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65 Posts Member #: 12240 Advanced Member Kent |
30th Apr, 2024 at 09:40:52pm
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?
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 1419 Posts Member #: 9199 Post Whore Lancashire |
1st May, 2024 at 11:20:29am
Your MAP only allows for 20kPa (3psi) of boost and will lock at 26 degree ignition.
What the mind can conceive the mini can achieve
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247 Posts Member #: 11017 Senior Member Shropshire |
1st May, 2024 at 07:23:05pm
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. |
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65 Posts Member #: 12240 Advanced Member Kent |
1st May, 2024 at 11:18:39pm
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.
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247 Posts Member #: 11017 Senior Member Shropshire |
2nd May, 2024 at 08:39:03am
On 1st May, 2024 jamesRs250 said:
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 Its absolute pressure. Your max is 120kpa. 100kpa is atmosphere. |
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1419 Posts Member #: 9199 Post Whore Lancashire |
2nd May, 2024 at 03:13:08pm
Anything under 100kPA is classed as n/a with 100kpa technically being wide open throttle.
What the mind can conceive the mini can achieve
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3577 Posts Member #: 655 Post Whore Northern Ireland |
2nd May, 2024 at 09:17:24pm
On 2nd May, 2024 Steve220 said:
On 1st May, 2024 jamesRs250 said:
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 Its absolute pressure. Your max is 120kpa. 100kpa is atmosphere. 100kpa should be atmospheric, some ecu's do strange things though, so just ensure that this is indeed the case. Edited by stevieturbo on 2nd May, 2024. 9.85 @ 145mph
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65 Posts Member #: 12240 Advanced Member Kent |
3rd May, 2024 at 05:48:28pm
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? |
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3577 Posts Member #: 655 Post Whore Northern Ireland |
5th May, 2024 at 09:08:18am
On 3rd May, 2024 jamesRs250 said:
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? No need to guess. Key on, Engine off, it should read atmospheric, and in most cases this should be 100kpa, 1 bar, 1000mbar....whatever units are in place. Get a mityvac or other known pressure source and apply pressure to the sensor to ensure what you're seeing at the ecu, is reflected on your known pressure source. Likewise for vac. Many ignore basic setup stages and just assume these things. It probably is correct, and probably bas been done....but always nice to know 100%. I've seen far too many bad ecu setups over the years, to wonder WTF whoever was there before was actually doing. And worse, charging people for it ! But given your table does only go to 120kpa, this will need extended for any usable boost. 9.85 @ 145mph
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247 Posts Member #: 11017 Senior Member Shropshire |
5th May, 2024 at 11:32:04am
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. |
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3577 Posts Member #: 655 Post Whore Northern Ireland |
5th May, 2024 at 06:16:46pm
Testing will show everything he needs to know.
9.85 @ 145mph
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65 Posts Member #: 12240 Advanced Member Kent |
6th May, 2024 at 09:49:24am
OK thanks. I didn't even think about the MAP sensori have bought a 3 bar sensor. |
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