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Home > A-Series EFI / Injection > MPI idle valve - on MS3 | |||||||
9258 Posts Member #: 123 Post Whore Betwix Harrogate and York |
14th Nov, 2011 at 10:05:39pm
I love my tornado more than my MS, been a lot less hassle, and better in so many ways. Fastest 998 mini in the world? 13.05 1/4 mile 106mph
On 2nd Jan, 2013 fastcarl said:
the design shows a distinct lack of imagination, talk about starting off with a clean sheet of paper, then not bothering to fucking draw on it,lol On 20th Apr, 2012 Paul S said:
I'm mainly concerned about swirl in the runners caused by the tangential entry. |
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1267 Posts Member #: 831 Post Whore Montreal, Canada |
14th Nov, 2011 at 10:59:37pm
On 14th Nov, 2011 wil_h said:
I love my tornado more than my MS, been a lot less hassle, and better in so many ways. Would you care to elaborate on this? I'm not taking a dig at anything or anyone, I'm genuinely interested in knowing what specifically is better and less of a hassle. That may help in the future. Jean |
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9258 Posts Member #: 123 Post Whore Betwix Harrogate and York |
14th Nov, 2011 at 11:27:46pm
Remember I only have MS1, and the following issues may no longer exist. My main gripe is having to press burn when I make a change. And I don't understand the VE table, why not just have ms? after all that's what you change.
Fastest 998 mini in the world? 13.05 1/4 mile 106mph
On 2nd Jan, 2013 fastcarl said:
the design shows a distinct lack of imagination, talk about starting off with a clean sheet of paper, then not bothering to fucking draw on it,lol On 20th Apr, 2012 Paul S said:
I'm mainly concerned about swirl in the runners caused by the tangential entry. |
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1267 Posts Member #: 831 Post Whore Montreal, Canada |
14th Nov, 2011 at 11:46:27pm
I think a lot of your issues are due to using MS1. MS2 and MS3 should be significantly better.
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9258 Posts Member #: 123 Post Whore Betwix Harrogate and York |
15th Nov, 2011 at 08:05:09am
I agree the advantage that using VE enables you to keep the the table, I wonder how often that happens though.
Fastest 998 mini in the world? 13.05 1/4 mile 106mph
On 2nd Jan, 2013 fastcarl said:
the design shows a distinct lack of imagination, talk about starting off with a clean sheet of paper, then not bothering to fucking draw on it,lol On 20th Apr, 2012 Paul S said:
I'm mainly concerned about swirl in the runners caused by the tangential entry. |
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8604 Posts Member #: 573 Formerly Axel Podland |
15th Nov, 2011 at 08:56:33am
On 14th Nov, 2011 wil_h said:
I love my tornado That's a whirlwind romance considering you have only known her for a few miles :) Is is because you popped her fuse on the first date :) Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
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114 Posts Member #: 9645 Advanced Member South Wales |
15th Nov, 2011 at 09:04:11am
:)
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9258 Posts Member #: 123 Post Whore Betwix Harrogate and York |
15th Nov, 2011 at 09:04:51am
Indeed, but the fuse fault was a wiring error on my part, without the protection offered in the ECU it would be totally FUBAR. Not sure MS has similar protection againt shoving a big spike up it? Fastest 998 mini in the world? 13.05 1/4 mile 106mph
On 2nd Jan, 2013 fastcarl said:
the design shows a distinct lack of imagination, talk about starting off with a clean sheet of paper, then not bothering to fucking draw on it,lol On 20th Apr, 2012 Paul S said:
I'm mainly concerned about swirl in the runners caused by the tangential entry. |
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5988 Posts Member #: 2024 Formally Retired Rural Suffolk |
15th Nov, 2011 at 09:17:46am
On 15th Nov, 2011 wil_h said:
Not sure MS has similar protection againt shoving a big spike up it? Slightly off topic, but if it's a V3.0 PCB I would say yes, although it uses a bank of discrete components to provide the protection rather than a single chip solution. If anything it's probably a bit OTT, but I've replicated it on the boards I've made. I think any problems you may read about with MS are down to DIY assembly done wrong (diodes in backwards etc.) Schrödinger's cat - so which one am I ??? |
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12307 Posts Member #: 565 Carlos Fandango Burnham-on-Crouch, Essex |
15th Nov, 2011 at 09:39:39am
I have to agree with some of that,
On 28th Aug, 2011 Kean said:
At the risk of being sigged... Joe, do you have a photo of your tool? http://www.turbominis.co.uk/forums/index.p...9064&lastpost=1 https://joe1977.imgbb.com/ |
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9258 Posts Member #: 123 Post Whore Betwix Harrogate and York |
15th Nov, 2011 at 09:42:22am
This thread is way off topic.
Fastest 998 mini in the world? 13.05 1/4 mile 106mph
On 2nd Jan, 2013 fastcarl said:
the design shows a distinct lack of imagination, talk about starting off with a clean sheet of paper, then not bothering to fucking draw on it,lol On 20th Apr, 2012 Paul S said:
I'm mainly concerned about swirl in the runners caused by the tangential entry. |
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8604 Posts Member #: 573 Formerly Axel Podland |
15th Nov, 2011 at 09:42:49am
On 15th Nov, 2011 minivan63 said:
:) Anyway I have spent out on the MS3 now - hope I have made the right decision! I'm pretty happy so far. Paul are you still going to try linking the 2 injectors outputs together with the closed loop O2 control? Maybe. Probably not a good starting point until you are familliar with the setup. The best thing to do is getting it close to where you want it, then use closed loop to refine the result. We used VEAL to set up the MS3 on the 998Ti. This is the result after less than an hour on the road: No need for a rolling road to get to this standard. Still some fine tuning to do, but VEAL is the dogs. All we had to do was set the injection timing by comparing the AFRs. On the subject of VE tables, I think it is a mindset issue. However, if you change the injectors or the fuel pressure, you just need to alter a single number, REQ_FUEL. I transfered the VE table from the 998Ti running 1900 cc/min injectors to the Miglia running 4500 cc/min (Ooo, just realised thats a gallon per minute), changed the REQ_FUEL and it was bang on to get it running. I would suggest that Wils problems with VEAL are possibly due to the wet manifold setup and a confused wideband. Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
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8604 Posts Member #: 573 Formerly Axel Podland |
15th Nov, 2011 at 09:46:50am
On 15th Nov, 2011 wil_h said:
Why has your's got two pipes on it Paul? is is so you bleed air equally to each side? It's inlet and outlet. The 'nob bit sits above a seat. The 'nob moves in and out to control air drawn into the engine by the inlet manifold vacuum. Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
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9258 Posts Member #: 123 Post Whore Betwix Harrogate and York |
15th Nov, 2011 at 10:25:07am
ok. So one pipe goes to the engine side of the butterfly. ther other? surely that just vents to air? unless you put it back to a filtered part.
Fastest 998 mini in the world? 13.05 1/4 mile 106mph
On 2nd Jan, 2013 fastcarl said:
the design shows a distinct lack of imagination, talk about starting off with a clean sheet of paper, then not bothering to fucking draw on it,lol On 20th Apr, 2012 Paul S said:
I'm mainly concerned about swirl in the runners caused by the tangential entry. |
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8604 Posts Member #: 573 Formerly Axel Podland |
15th Nov, 2011 at 10:28:55am
Yes, back to post-filter or just put a small filter on the inlet. Edited by Paul S on 15th Nov, 2011. Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
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114 Posts Member #: 9645 Advanced Member South Wales |
15th Nov, 2011 at 10:32:59am
On the mpi manifold the other end connects onto the TB upstream so it gets filtered air. Could use a filter on the valve for NA but I guess it might boost out the inlet on turbo applications if it were open at all so would need similar plumbing. |
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9258 Posts Member #: 123 Post Whore Betwix Harrogate and York |
15th Nov, 2011 at 10:40:35am
Cheers. I'll give it a go then. Fastest 998 mini in the world? 13.05 1/4 mile 106mph
On 2nd Jan, 2013 fastcarl said:
the design shows a distinct lack of imagination, talk about starting off with a clean sheet of paper, then not bothering to fucking draw on it,lol On 20th Apr, 2012 Paul S said:
I'm mainly concerned about swirl in the runners caused by the tangential entry. |
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8604 Posts Member #: 573 Formerly Axel Podland |
15th Nov, 2011 at 10:58:35am
You will need the MS2 daughterboard to drive the stepper type IACV. Edited by Paul S on 15th Nov, 2011. Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
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10021 Posts Member #: 1456 Mongo Barnsley, South Flatcapshire |
15th Nov, 2011 at 11:01:07am
With the SC throttle body could you setup some sort of servo or stepper to kick the butterfly open automatically as opposed to an IACV? Or would this not give a good idle? If something is worth doing, it's worth doing half of. |
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9258 Posts Member #: 123 Post Whore Betwix Harrogate and York |
15th Nov, 2011 at 11:16:51am
On 15th Nov, 2011 Paul S said:
You will need the MS2 daughterboard to drive the stepper type IACV. Fastest 998 mini in the world? 13.05 1/4 mile 106mph
On 2nd Jan, 2013 fastcarl said:
the design shows a distinct lack of imagination, talk about starting off with a clean sheet of paper, then not bothering to fucking draw on it,lol On 20th Apr, 2012 Paul S said:
I'm mainly concerned about swirl in the runners caused by the tangential entry. |
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11046 Posts Member #: 965 Post Whore Preston On The Brook |
15th Nov, 2011 at 11:45:21am
On 15th Nov, 2011 John said:
With the SC throttle body could you setup some sort of servo or stepper to kick the butterfly open automatically as opposed to an IACV? Or would this not give a good idle? The Rover SPi and the early Rover T series engines use this method, also known as a throttle kicker, as it operates dirrectly onto the throttle, rather than bypassing it. 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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10021 Posts Member #: 1456 Mongo Barnsley, South Flatcapshire |
15th Nov, 2011 at 11:47:48am
I remember the kicker on my SPi. Used to idle ok. So would this principle work? If something is worth doing, it's worth doing half of. |
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8604 Posts Member #: 573 Formerly Axel Podland |
15th Nov, 2011 at 11:52:23am
The MS has a Fidle output that should drive a fast idle solenoid or kicker.
Edited by Paul S on 15th Nov, 2011. Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
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5988 Posts Member #: 2024 Formally Retired Rural Suffolk |
15th Nov, 2011 at 11:53:18am
On 15th Nov, 2011 wil_h said:
oh, didn't realise that. Right, I'll get a PWM one then, easier install, just they look a bit price. I hope my MS1 ia suitably modified to drive one. Not sure what the mod is. Usually to replace the small transistor that just switches a relay with a larger one to handle the current of a PWM valve. Again, that's assuming it's a version 3.0 PCB and assuming that MS1 uses the same circuit for PWM idle as MS2 does.... Schrödinger's cat - so which one am I ??? |
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8604 Posts Member #: 573 Formerly Axel Podland |
15th Nov, 2011 at 04:03:58pm
Blimey, did you know that the MS1 is now over 10 year old technology !
Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
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