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62 Posts Member #: 1515 Advanced Member |
10th Dec, 2007 at 08:18:36am
IME steppers can be as much of a pain as a blessing. In a DIY_EFI setup you don't want all the emission and soft landing stuff that they use steppers for in OEM applications, and PWM is less to go wrong. But having a choice is good. Although I wouldn't write off the unit for not having it, if it does provide a viable and affordable option for the A-series crowd
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62 Posts Member #: 1515 Advanced Member |
10th Dec, 2007 at 08:41:59am
On 9th of Dec, 2007 at 10:58pm evolotion said:
i was always under the impression the sensor doesnt require any flow atall, simply that it is surrounded by the gas to be measured, the only need for flow would then be to provide the sensor with new gas to sample. but i could easily be wrong! cant seem to find any evidence online that can give me a clear cut answer either way. You are right in that you do not need much flow, but it needs to be sufficient such that you are getting samples as they happen. With your idea, off boost there will be (effectively) zero pressure differential so no flow. On boost flow will increase with boost pressure as the differential will increase. Innovate do a tailpipe probe that has a venturi to ensure that enough gas reaches the sensor. Sadly not something that helps in this case. I do have a stash of L1H1 sensors, which are more robust that the LSU4. I need to make up some adaptors to see if I can run them off an LM-1, then they can be offered as sacraficial lambs |
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 8604 Posts Member #: 573 Formerly Axel Podland |
10th Dec, 2007 at 09:18:19am
On 10th of Dec, 2007 at 08:18am bill shurvinton said:
Saying 'even MS has one of those' is a tad misleading, as other than MS and Emerald very few aftermarket units support this until you get to £££ units. Don't mind Sprocket. He has decided to use VEMS and wants us all to do the same, so he knocks Megasquirt at every opportunity. Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
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62 Posts Member #: 1515 Advanced Member |
10th Dec, 2007 at 09:33:37am
Nah, that's not knocking, just healthy deabte :) |
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 11046 Posts Member #: 965 Post Whore Preston On The Brook |
10th Dec, 2007 at 07:03:35pm
On 10th of Dec, 2007 at 09:18am Paul S said:
On 10th of Dec, 2007 at 08:18am bill shurvinton said:
Saying 'even MS has one of those' is a tad misleading, as other than MS and Emerald very few aftermarket units support this until you get to £££ units. Don't mind Sprocket. He has decided to use VEMS and wants us all to do the same, so he knocks Megasquirt at every opportunity. Go sit in your tower! On 26th Oct, 2004 TurboDave16v said:
Is it A-Series only? I think it should be... So when some joey comes on here about how his 16v turbo vauxhall is great compared to ours, he can be given the 'bird'... On 26th Oct, 2004 Tom Fenton said:
Yep I agree with TD........ |
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11046 Posts Member #: 965 Post Whore Preston On The Brook |
10th Dec, 2007 at 07:06:23pm
On 10th of Dec, 2007 at 09:33am bill shurvinton said:
Nah, that's not knocking, just healthy deabte :) Bill, thats right! Like I said its a real shame that CANEMS does not have a stepper, Im all for using the OEM stuff especialy of its already there 
On 26th Oct, 2004 TurboDave16v said:
Is it A-Series only? I think it should be... So when some joey comes on here about how his 16v turbo vauxhall is great compared to ours, he can be given the 'bird'... On 26th Oct, 2004 Tom Fenton said:
Yep I agree with TD........ |
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3588 Posts Member #: 655 Post Whore Northern Ireland |
10th Dec, 2007 at 08:26:53pm
L1H1....
9.85 @ 145mph
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62 Posts Member #: 1515 Advanced Member |
10th Dec, 2007 at 09:48:51pm
mine cost a tenner. converteing LM-1 to L1H1 should just be a drop down in the cal SW. Early LM-1 had a jumper. Lemmie check a newer one...hmm need to open it up and the documentation is missing for that.
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9 Posts Member #: 2172 Junior Member |
30th Dec, 2007 at 04:22:06pm
Hi all,
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