Hello,
I've finally finished my Megajolt install which is currently running a copy of my old distributor and hence is 2D (rpm vs advance). It works fine, but would like to introduce the engine load into it and hence have a 3D map.
Firstly, does anyone have a Megajolt map for a 2lt Pinto?
If not, how does one go about creating one. I appreciate I'll need a rolling road (dyno) session to get it perfect but won't be doing that till spring. So I need something that will work ok for the winter months.
Would a Ford crossflow engine's map be suitable? I know a number of you have fitted Megajolt's to Westys and Caterhams. If so, does anyone have one I could use?
cheers
Matt Dearden
(2lt Pinto Cat)
http://www.cate1.co.uk/megajolt
3D mapping Ford Pinto Engine
Moderators: JeffC, rdoherty, stieg, brentp
Gee, I thought YOU brought the map....
The normal method of recurving engine load ignition timing is to set the no load (high vacuum) timing at an extra 15 degrees over the mechanical (RPM) value. Then just use a flat line for the rest of the values, down to full load (0 vacuum). ie 5 degrees extra for about 6 inches Hg, 10 degrees extra for 12 inches, and various points in between. Then when you drive around note the RPM and vacuum readings when you hear pinging, trim these values down 2 or 3 degrees in the map, and retest. If you have no ping, then try bumping a few values up to get max output.
Maps on the Web
Matt,
I was looking around for a base map to start my Vauxhall engine and came up with this website http://dtaforum.psycode.com/ In the MAP section are some downloadables maps, most of which are both fuel & Ign. However I found that it is possible cut & past the map from the web site into excel then create the MJLJ Map from this. You may be able to find a ford map you could use a start.
Just found the MAP section is not currectly working, but I have placed the Vx maps I have already download onto my webserver http://www.performancelocost.co.uk/files/ as most 4cyl N/A engines could be used as a base map.
I was looking around for a base map to start my Vauxhall engine and came up with this website http://dtaforum.psycode.com/ In the MAP section are some downloadables maps, most of which are both fuel & Ign. However I found that it is possible cut & past the map from the web site into excel then create the MJLJ Map from this. You may be able to find a ford map you could use a start.
Just found the MAP section is not currectly working, but I have placed the Vx maps I have already download onto my webserver http://www.performancelocost.co.uk/files/ as most 4cyl N/A engines could be used as a base map.
Cheers
Thanks for the links and tips guys.
I've now managed to get hold of some 16x16 maps for various Pintos which is great. However, how the hell do I transpose these into 10x10 maps for the Megajolt? I've played around in Excel but am getting nowhere trying to get them values to fit into a 10x10 map.
Any ideas folks?
cheers
Matt Dearden
(2lt Pinto Cat)
http://www.cate1.co.uk/megajolt
I've now managed to get hold of some 16x16 maps for various Pintos which is great. However, how the hell do I transpose these into 10x10 maps for the Megajolt? I've played around in Excel but am getting nowhere trying to get them values to fit into a 10x10 map.
Any ideas folks?
cheers
Matt Dearden
(2lt Pinto Cat)
http://www.cate1.co.uk/megajolt
16x16 to 10x10
Matt,
To help you out (and myself along the way)I have put on the files area of my web server http://www.performancelocost.co.uk/files an excel file that will do the 16x16 to 10x10 conversion for you. This is acheived by using interpolation (spelling questionable) to give a map with the lower resolution. As I could only work the maths for one axis at a time there is a tab for a 16x10 map too (half way through the maths). If you copy and paste you 16x16 map to the yellow area the 16x10 & 10x10 will form automatically.
Hope this helps you out.
Regards
Simon (PioneerX)
To help you out (and myself along the way)I have put on the files area of my web server http://www.performancelocost.co.uk/files an excel file that will do the 16x16 to 10x10 conversion for you. This is acheived by using interpolation (spelling questionable) to give a map with the lower resolution. As I could only work the maths for one axis at a time there is a tab for a 16x10 map too (half way through the maths). If you copy and paste you 16x16 map to the yellow area the 16x10 & 10x10 will form automatically.
Hope this helps you out.
Regards
Simon (PioneerX)
My Saviour!
Simon,
That's exactly what I've been trying to do! Been a long time since I've done any serious maths and just couldn't work out how to do it. Many thanks and if you're going to Stoneleigh next year I'll buy you a pint!
cheers
Matt Dearden
(2lt Pinto Cat)
http://www.cate1.co.uk/megajolt
That's exactly what I've been trying to do! Been a long time since I've done any serious maths and just couldn't work out how to do it. Many thanks and if you're going to Stoneleigh next year I'll buy you a pint!
cheers
Matt Dearden
(2lt Pinto Cat)
http://www.cate1.co.uk/megajolt
Favour returned
Matt,
You are more than welcome. I have used your installation website for some insperation, I'm just glad I could return the favour.
Regards
Simon
You are more than welcome. I have used your installation website for some insperation, I'm just glad I could return the favour.
Regards
Simon
-
Richard oxley
- Posts: 0
- Joined: Wed Sep 22, 2004 11:28 am
1300 VAUXHALL MAP
Simon
Just had a look on that web sites that has got some maps on for 1600 2000 vauxhall engines,realy intresting. Just woundering if you have or do you know were i can get hold of a map for my 1300 vauxhall engine that i am using in my rallying nova.Would be a realy help if i could get hold of one as a good staring point.
Hope you can help me.
Cheers
Rich
Ps i live in Derbyshire are you any were near me??
Just had a look on that web sites that has got some maps on for 1600 2000 vauxhall engines,realy intresting. Just woundering if you have or do you know were i can get hold of a map for my 1300 vauxhall engine that i am using in my rallying nova.Would be a realy help if i could get hold of one as a good staring point.
Hope you can help me.
Cheers
Rich
Ps i live in Derbyshire are you any were near me??
Block sharing
Rich,
If I remember correctly the 1300 & 1600 are both Vauxhall small block engines. As such they would have a fairly simular map. If the engine is running you could use a timing light and note the currect advance to create your base map, but I would think the 1600 map would be a good starting point. Just be sure that you change the advance is 'pining' if heard as you test the engine. I will have a dig around over the next few days and see what I can fine for you.
As for my location, I'm Kettering, Northamptonshire, so not really that close.
Regards
Simon
If I remember correctly the 1300 & 1600 are both Vauxhall small block engines. As such they would have a fairly simular map. If the engine is running you could use a timing light and note the currect advance to create your base map, but I would think the 1600 map would be a good starting point. Just be sure that you change the advance is 'pining' if heard as you test the engine. I will have a dig around over the next few days and see what I can fine for you.
As for my location, I'm Kettering, Northamptonshire, so not really that close.
Regards
Simon
-
Richard oxley
- Posts: 0
- Joined: Wed Sep 22, 2004 11:28 am
Block sharing
hi simon
Thankx for getting back to me. Will have a look at the 1600 map and try and change it to 10x10 for the mega jolt system.Looks a bit confuseing to me as i'v not realy got any exsperance at this sort of thing.Don't realy understand how to change it!!
If you could send me a map that has already been done to the 10x10 that would be a masive help.
Cheers
Rich
e-mail me if you like at oxleyhouse@tiscali.co.uk
Ps i'm running twin 40's with a medum cam at the moment am also going to be using the map sensor not the tps.
Thankx again
Thankx for getting back to me. Will have a look at the 1600 map and try and change it to 10x10 for the mega jolt system.Looks a bit confuseing to me as i'v not realy got any exsperance at this sort of thing.Don't realy understand how to change it!!
If you could send me a map that has already been done to the 10x10 that would be a masive help.
Cheers
Rich
e-mail me if you like at oxleyhouse@tiscali.co.uk
Ps i'm running twin 40's with a medum cam at the moment am also going to be using the map sensor not the tps.
Thankx again
16x16 to 10x10 MAPS
Rich,
I will email you with details too, but if you check my files section http://www.performancelocost.co.uk/files you will find a 16x16 to 10x10 converter I built. You can copy the map to the yellow section ,if you got the map from my files section too then it will overflow the yellow box, this does not matter too much as it will still capture all the value you need to get the 10x10 map. Once you have pasted the values the 10x10 will be created automatically on the last tab of the sheet.
Regards
Simon
I will email you with details too, but if you check my files section http://www.performancelocost.co.uk/files you will find a 16x16 to 10x10 converter I built. You can copy the map to the yellow section ,if you got the map from my files section too then it will overflow the yellow box, this does not matter too much as it will still capture all the value you need to get the 10x10 map. Once you have pasted the values the 10x10 will be created automatically on the last tab of the sheet.
Regards
Simon
MAP Bins
Ivan,
The 1-14 is the Manifold Absolute Press 'bins' I have not yet worked out what 'actual' pressure value I need to use as this is a little dependant on the intake tract (which I have just changed). I plan to start with a linar value based on 102kPa being maxium as this is atmospheric pressure and I'm not useing any form of boost. If you planning on using TPS rather than MAP then you will need to use the runtime display to translate your min and max points on the TPS into a kPa figuar, then use this to populate the bin values.
If you need any order info, let me know
Regards
Simon
The 1-14 is the Manifold Absolute Press 'bins' I have not yet worked out what 'actual' pressure value I need to use as this is a little dependant on the intake tract (which I have just changed). I plan to start with a linar value based on 102kPa being maxium as this is atmospheric pressure and I'm not useing any form of boost. If you planning on using TPS rather than MAP then you will need to use the runtime display to translate your min and max points on the TPS into a kPa figuar, then use this to populate the bin values.
If you need any order info, let me know
Regards
Simon
map bins
Hello simon
Indeed the module I have ordered is working with TPS
So if I understand it, the values from the TPS sensor
have to be devided in ten fields from closed till open.
Won't this be a different map than with the Map sensor
because of the different status of measuring, won't the
pressure in the manifould have a different curve in the
graffics than the curve off the TPS sensor?
I have been trying to convert the 16x16 map to 10x10
but I can't make it work, once you have pasted the map do
you have to push on somthing or confirm on somthing?
regards Ivan
Ivan
Indeed the module I have ordered is working with TPS
So if I understand it, the values from the TPS sensor
have to be devided in ten fields from closed till open.
Won't this be a different map than with the Map sensor
because of the different status of measuring, won't the
pressure in the manifould have a different curve in the
graffics than the curve off the TPS sensor?
I have been trying to convert the 16x16 map to 10x10
but I can't make it work, once you have pasted the map do
you have to push on somthing or confirm on somthing?
regards Ivan
Ivan