Fitting Megasquirt
Discussion
Hey all, I am planning of getting a new engine put into my car so I was just asking about the megasquirt and if they're any garage's that have dealt with it on a Turbo engine? i.e Do they have support for Boost etc. And I need the engine fitted and mounting the IC.
Any help or any garages near the south coast that you could point me in would be great!
Thanks,
Tim!
Any help or any garages near the south coast that you could point me in would be great!
Thanks,
Tim!
The princple of megasquirt is that its a DIY system, that is - you learn and install it yourself.
Not sure if you will find garages that will fit megasquirt, they are more likely to fit one of the other comercial systems - plus it will cost you a fortune.
Is this to go on your car in your profile? - I wouldn't tackle a modernish car, as the remaining gubbins on the car are likely to get upset when it cant talk to the OEM ecu any longer.
Get yourself an older car, cheaper to run and you can tinker to your hearts delight.
Not sure if you will find garages that will fit megasquirt, they are more likely to fit one of the other comercial systems - plus it will cost you a fortune.
Is this to go on your car in your profile? - I wouldn't tackle a modernish car, as the remaining gubbins on the car are likely to get upset when it cant talk to the OEM ecu any longer.
Get yourself an older car, cheaper to run and you can tinker to your hearts delight.
I'm told there is a rolling road in Portsmouth who have recently done work with Megasquirt.
It would seem the lads there recognise that MS is becoming more popular so took the car (with MS already installed)in for three days to tune it but only charged for one so that they could learn and play with MS.
Steve
It would seem the lads there recognise that MS is becoming more popular so took the car (with MS already installed)in for three days to tune it but only charged for one so that they could learn and play with MS.
Steve
Is that JKM?
I'm going to need an ms or emerald ecu to go in my project 944 but I'm going to be running a high c/r and boost so I wasn't very confident with the mapping isde of things and wanted someone else to do it.
I'm next door to Portsmouth so if there's a rr that can map an ms that'd perfect!
I'm going to need an ms or emerald ecu to go in my project 944 but I'm going to be running a high c/r and boost so I wasn't very confident with the mapping isde of things and wanted someone else to do it.
I'm next door to Portsmouth so if there's a rr that can map an ms that'd perfect!
ihatesissycars said:
Is that JKM?
I'm going to need an ms or emerald ecu to go in my project 944 but I'm going to be running a high c/r and boost so I wasn't very confident with the mapping isde of things and wanted someone else to do it.
I'm running 6-7psi on 9.25 cr on std cast internals and mapped it myself. I just started with about 4-5 psi and a "fat" tune (11:1 afr) and have gradually reduced that down and increased the boost in stages.I'm going to need an ms or emerald ecu to go in my project 944 but I'm going to be running a high c/r and boost so I wasn't very confident with the mapping isde of things and wanted someone else to do it.
I certainly wouldn't of gone straight to where i am today in one go. Right now, after several years I'm finally working on leaning out (to 15.5 afr) my cruise and low load areas of the map - mainly because of fuel costs!
Hi Eliot,
My porkers motor is 10.6:1! It has a nice shapped chamber though. . . . .
I think I may have bitten off more than I can chew to start with. I was thinking of getting a lumpier cam to to drop the running c/r a bit plus use an ic aswell as doing everything possible to to keep things cool. Hopefully it will work or its piston change time.
My porkers motor is 10.6:1! It has a nice shapped chamber though. . . . .
I think I may have bitten off more than I can chew to start with. I was thinking of getting a lumpier cam to to drop the running c/r a bit plus use an ic aswell as doing everything possible to to keep things cool. Hopefully it will work or its piston change time.
ihatesissycars said:
Hi Eliot,
My porkers motor is 10.6:1! It has a nice shapped chamber though. . . . .
I think I may have bitten off more than I can chew to start with. I was thinking of getting a lumpier cam to to drop the running c/r a bit plus use an ic aswell as doing everything possible to to keep things cool. Hopefully it will work or its piston change time.
LS motors will happily run up to 10psi with correct tuning and such CR.My porkers motor is 10.6:1! It has a nice shapped chamber though. . . . .
I think I may have bitten off more than I can chew to start with. I was thinking of getting a lumpier cam to to drop the running c/r a bit plus use an ic aswell as doing everything possible to to keep things cool. Hopefully it will work or its piston change time.
So it is all down to good intercooling, and good tuning.
I know little of the Megasquirt to be honest. But one thing I do read, is that they arent easy to map in terms of user friendlyness. That doesnt mean they cant get the job done though.
Ive considered it a few times for some projects. In the end I always opt for the easy route. The extra cost makes it worth it IMO.
Or you could throw in a little water/methanol injection. That will help you no end.
Edited by stevieturbo on Friday 28th December 13:07
My only experience of mapping, is with megasquirt - so I cant realy comment about how difficult it is.
But, there is some clever software out there that works great. For example I want to get my AFR down to 15.5:1 - so all I do is go set my target afr to 15.5:1 and go out for a drive with the datalogging switched on. Megasquirt itself will correct the mixture to my target, but clearly i want my map to reflect the same thing.
So you get back home, load your map and your datalog into megalog viewer and it will analyse your datalog and adjust your bins accordingly. Works pretty well, and I wouldn't call that exactly difficult.
This screen shot shows how I told it to only adjust the bins between 40 and 100KPA and 1500-5400 rpm. Once its done, you hover your mouse over each bin that it adjusted (shown in red) and you can check how much it changed the bin by (I do this to make sure it doesn't do anything wacky) - once your happy, save and load it back into your ecu and go out for another drive.
But, there is some clever software out there that works great. For example I want to get my AFR down to 15.5:1 - so all I do is go set my target afr to 15.5:1 and go out for a drive with the datalogging switched on. Megasquirt itself will correct the mixture to my target, but clearly i want my map to reflect the same thing.
So you get back home, load your map and your datalog into megalog viewer and it will analyse your datalog and adjust your bins accordingly. Works pretty well, and I wouldn't call that exactly difficult.
This screen shot shows how I told it to only adjust the bins between 40 and 100KPA and 1500-5400 rpm. Once its done, you hover your mouse over each bin that it adjusted (shown in red) and you can check how much it changed the bin by (I do this to make sure it doesn't do anything wacky) - once your happy, save and load it back into your ecu and go out for another drive.
eliot said:
My only experience of mapping, is with megasquirt - so I cant realy comment about how difficult it is.
Can you tell me why the MS people lumped the volumetric efficiency in with the target lambda? If the 'VE' table really was pure VE then there would (it seems to me) be a lot less mucking about.By the way, any idea why you've got that big hole in the VE table at the top end?
Edited by GreenV8S on Friday 28th December 14:33
eliot said:
My only experience of mapping, is with megasquirt - so I cant realy comment about how difficult it is.
But, there is some clever software out there that works great. For example I want to get my AFR down to 15.5:1 - so all I do is go set my target afr to 15.5:1 and go out for a drive with the datalogging switched on. Megasquirt itself will correct the mixture to my target, but clearly i want my map to reflect the same thing.
So you get back home, load your map and your datalog into megalog viewer and it will analyse your datalog and adjust your bins accordingly. Works pretty well, and I wouldn't call that exactly difficult.
This screen shot shows how I told it to only adjust the bins between 40 and 100KPA and 1500-5400 rpm. Once its done, you hover your mouse over each bin that it adjusted (shown in red) and you can check how much it changed the bin by (I do this to make sure it doesn't do anything wacky) - once your happy, save and load it back into your ecu and go out for another drive.
My DTA can do closed loop while driving, and only takes about 3 seconds to update any changes required, still whilst driving......But, there is some clever software out there that works great. For example I want to get my AFR down to 15.5:1 - so all I do is go set my target afr to 15.5:1 and go out for a drive with the datalogging switched on. Megasquirt itself will correct the mixture to my target, but clearly i want my map to reflect the same thing.
So you get back home, load your map and your datalog into megalog viewer and it will analyse your datalog and adjust your bins accordingly. Works pretty well, and I wouldn't call that exactly difficult.
This screen shot shows how I told it to only adjust the bins between 40 and 100KPA and 1500-5400 rpm. Once its done, you hover your mouse over each bin that it adjusted (shown in red) and you can check how much it changed the bin by (I do this to make sure it doesn't do anything wacky) - once your happy, save and load it back into your ecu and go out for another drive.
Soooooo easy.
Vixpy, you own a rolling road, don't you? What's your opinion of Megasquirt for those of us who're financially embarrassed? It's the only system I've any experience with too.
I'm sure loads of people on here would like a pro's opinions on the various systems and their cost/effectiveness ratio.
I'm sure loads of people on here would like a pro's opinions on the various systems and their cost/effectiveness ratio.
Im not knocking Megasquirt one bit.
Its just that in the time vs money side of things......
I chose to pay more for a system I could install, and make work much easier, that did everything with one box.
So while the initial hit was worse, in the long term, it made my life a lot easier. Well, I think so anyway. An easy life is worth a few quid any day.
The main thing that put me off MS in the first place, was having to build the damn thing....and I recall how my first couple of DIY WB's went. And that wasnt very successfully lol.
I think some places sell them built up and ready to rock now ? Similarly VEMS do the same, which is another budget entry.
Its just that in the time vs money side of things......
I chose to pay more for a system I could install, and make work much easier, that did everything with one box.
So while the initial hit was worse, in the long term, it made my life a lot easier. Well, I think so anyway. An easy life is worth a few quid any day.
The main thing that put me off MS in the first place, was having to build the damn thing....and I recall how my first couple of DIY WB's went. And that wasnt very successfully lol.
I think some places sell them built up and ready to rock now ? Similarly VEMS do the same, which is another budget entry.
>Can you tell me why the MS people lumped the volumetric efficiency in with the target lambda? If the 'VE' table >really was pure VE then there would (it seems to me) be a lot less mucking about.
Not sure I follow you.
The AFR table isn't the "map" - its the AFR you expect to be running at a particular axis - If your AFR (from the map - the ve table) doesn't match the target table - it will correct within limits you define - but its realtime non permanent correction, clearly you need to capture the the % correction and get that back into the base VE table so its at the correct AFR in the future without any dynamic correction. This is the process shown above.
The newer MS2 (I'm still using MS1-extra) has Automatic Mixture control, where it will adjust the VE table for you along the same lines as what I'm doing with megalogviewer - (more here http://www.megamanual.com/ms2/amc.htm)
My mate has widebands in each bank on a griff 500, and it will tune the left/right banks for you - just by driving along.
>By the way, any idea why you've got that big hole in the VE table at the top end?
Because the 95 values are the true values, and i haven't got round to making the surrounding bins the same.
180kpa is higher than my boost limit and 100kpa which is impossible to hit unless the turbos are disconnected. Plus my rev limiter is set to 5500 - which i rarely hit.
Hope that helps.
Not sure I follow you.
The AFR table isn't the "map" - its the AFR you expect to be running at a particular axis - If your AFR (from the map - the ve table) doesn't match the target table - it will correct within limits you define - but its realtime non permanent correction, clearly you need to capture the the % correction and get that back into the base VE table so its at the correct AFR in the future without any dynamic correction. This is the process shown above.
The newer MS2 (I'm still using MS1-extra) has Automatic Mixture control, where it will adjust the VE table for you along the same lines as what I'm doing with megalogviewer - (more here http://www.megamanual.com/ms2/amc.htm)
My mate has widebands in each bank on a griff 500, and it will tune the left/right banks for you - just by driving along.
>By the way, any idea why you've got that big hole in the VE table at the top end?
Because the 95 values are the true values, and i haven't got round to making the surrounding bins the same.
180kpa is higher than my boost limit and 100kpa which is impossible to hit unless the turbos are disconnected. Plus my rev limiter is set to 5500 - which i rarely hit.
Hope that helps.
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