Engine management

[bill shurvinton]

Hi Kevin,

You must pop over some time, if only to marvel at the lack of progress on the purple beast.

Need to take inlet off again, as idle wont go below 1700RPM.

[neilb]

Bill

Any idea of the when the UMS will be available as a kit and at what sort of cost?  

Cheers

Neil

[bill shurvinton]

This year sometime. Bruce is doing this as a gift to us all, so you have to be patient. Costs have yet to be agreed, but are similar to the MS. It should be noted that, for most people the plain vanilla MS will do everything they need. The UMS is for those of us who are Uber-geeks and want canbus control of the car, or the ability to drive 3 banks of injectors, or coil-on-plug ignition for a V12 etc.

The UMS processor will be made available as a plug on option for the old MS, so you could build and run MS now, and then upgrade later.

[neilb]

I am not planning to install the engine until the end of this year so I am not in any rush, from reading the specs on the UMS it seems that the processor is more designed to work in the harsh enviroment than the one for the MS.  I have to agree with what you are saying about the MS it will do everything that a after market unit for £500+ will do and more for a 1/4 of the price.

[DAZ 4]

Bill/Kevin/Neil - Exactly as I thought, it can be done  

I can understand where Toby is coming from, trying to produce something yourself, but these manufacturers already produce in volume, therefore the prices in my opinion are a little too high  

[Toby Mack]

but these manufacturers already produce in volume, therefore the prices in my opinion are a little too high

not trying to justify the manufacturers prices  but I'd be very surprised if their volumes were higher than a few thousand a year which doesn' t do that much to reduce costs. (don't forget we still haven't mentioned labour and overheads for running the business....)

Still, to get back to the subject, the MS system sounds an absolute bargain, especially built and tested. If you don't mind playing with it but don't trust yourself too much with a soldering iron that looks like the best option.  It is the way I would got if I was injecting. (I'd pay the extra £40 to get it built too!

Toby

[bill shurvinton]

I actually have the capability to do an entire EFi conversion for £150 if I really wanted to, but that's another story

[YouMustBeJoking]

Bill,

I have been thinking about megasquirt and converting my Dellorto equipped Pinto engine.  The main thing putting me off is the cost of throttle bodies.  How would you do a conversion for so little?

[Ragtop]

Bill et al - does anyone build the Megasquirt commercially and if so what is the cost?

Does it do ignition only as an interim ie without the squirt?  

[Matt Seabrook]

Does it do ignition only as an interim ie without the squirt?  

That would just be a mega then    By the way Bill WB lambda sensor working very well managed to get rid of a flat spot just above idle throttle opening    very happy.

[bill shurvinton]

I'm trying to keep a few assembled MS in stock. Should be around £160. First five are in assembly. For throttle bodies I recommend motorbike ones. A little fettling to make them fit, but nothing impossible.

In terms of features you can do ignition only, fuel only or fuel and ignition.

[Richard M Green]

Bill, What have you found to be the simplest way to adapt the bike TBs to the head of, for example, a Pinto?

I'm intrigued as to why use 'bike TBs rather than just chop up a pair of old twin choke Webers or Dellortos which allow the use of the original inlet manifold?

[bill shurvinton]

I should admit that I am better at electron herding than I am at mech stuff, so haven't found the perfect way.

Dave Booth has just done a conversion that is far neater than anything I could countenance as he is masterful with the use of CNC.

However, if I were doing it I would take some DCOE flanges I had made up and get a length of pipe tigged on. Reason for this is that the bike TBs mount on to bike manifolds with rubber jobbies. So it should be easy to make an adaptor of whatever length was required.

The bike TBs are cheap, much lighter than webers and have injector pockets, TPS, MAP lines and all other gubbins already on them, so make the total problem easier to deal with.

For an example of how they can look see http://pub.se7ens.net/lists/cam7/Xflow_TBs.jpg

[Mike-SEiW]

The bike TBs are cheap, much lighter than webers and have injector pockets, TPS, MAP lines and all other gubbins already on them, so make the total problem easier to deal with.

How cheap?

[bill shurvinton]

I try to never pay more than £50 for a set.