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1975 Triumph 2500TC - Speeduino

omnipod Europe Posts: 197	1975 Triumph 2500TC - Speeduino omnipod @breadbasket
	Jul 4, 2020 9:36:33 GMT Select Post Deselect Post Link to Post Back to Top
	Thanks Nick, you're a star. I have done lots of internet reasearch for this EFI project and I have to say, you pop up everywhere! How many forums are you on? How do you get time to keep on top of giving everybody else the benefit of your knowledge and at the same time get your projects done? I for one am very grateful for your help. You are right about the loom it turned out to be a very long and drawn out process, but if I had made it off the car I would never have got it right. The last post is a bit misleading as I was finished in the loom in early May so have already started on the Speeduino install. I must admit I cheated, at least I feel like I cheated. I had aims to build my own Speeduino board but I had to give my head a wobble and realise that I didn't have the time and just wasn't confident enough in my own soldering skills. For the extra 60 quid I bought an assembled UA4C SeaWolf with VR conditioner. (I see that there is now an updated version called SeaFox too) I mounted a 36-1 wheel a year or so ago and started collecting other parts I needed at the same time. The coil is from a VR6 Corrado and the crank sensor is a Ford item. I spalshed out on an LD Performance wideband kit too. Funny you should say that the Speeduino range is too complicated for you (which I don't believe for a second) as that is the reason I didn't go MS, there is almost too much documentation if that is possible, I thought I would never be able to sift through all of it to find out what I needed. MS was just too overwhelming. I take your point about the Speeduino documentation though, the 'updated' wiki now has less information than before. Overall though I've found it to be OK and the Facebook page and forum are good sources of info. The only thing I hate about it are the two molex mini jr. connectors, those fiddly little pins, I have tried several crimping tools and they all either mash the pin or crimp it so that it's too fat to go into the connector. This has caused me several false starts due to wiring problems. I'm going to see if I can swap them out for something else. I'm not short on space for the ECU so i don't mind a couple of oversized connectors. Otherwise I haven't encountered any noise problems, what symptoms are you seeing due to this? I got the car fired up on the Speeduino a couple of days ago but haven't had much chance to drive it since, the first test run was pretty underwhelming I have to say, It felt better on coil points and distributor but this is only a generic base map so to be expected i assume. I have made a new table based on yours and will try to get this uploaded to the Speeduino over the weekend. How does this look for a start? otherwise i'm happy with the tooth logger, as far as I understand it it looks correct anyway? Not so sure about the composite graph though, what am I seeing here? I do realise that the red line is where the cam sensor info should be, i'm was just worried that the crank sensor graph looks a bit odd. Any tips about the things I'm f@%*ing up are more than welcome.
	Last Edit: Jul 4, 2020 9:42:17 GMT by omnipod 1964 Austin Westminster A110 MkI 1975 Triumph 2500 TC 1993 Saab 900

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vitesseefi South West Posts: 2,301	1975 Triumph 2500TC - Speeduino vitesseefi @vitesseefi
	Jul 4, 2020 17:39:07 GMT Select Post Deselect Post Link to Post Back to Top
	Been playing the game for 14 years now and was among the first to use MS on a Triumph 6 I think. Don’t confuse quantity with quality mind........ Plus one on the Molex. Not robust enough and soon give problems if you have to actually unplug and rep lug them or, god forbid move pins around...... Our problems seem to all track back to a dirty CPS signal causing sync loss and resets. Causes include the horn (relay), overdrive (relay), washer pump, blower motor and electric windows. We also had extended aggro with cold starting which turned out to be the software noise filters (Which we had had to set to “aggressive” to get it to run any sense) filtering the actual signal out as well. Took a damn long time (and two starter motors) to figure that one out. MAP should be ok as a start point. Beyond that it’s difficult to predict as different cams produce different levels of vacuum with milder cams producing much more low rpm and part throttle vacuum which offsets part of the table. At light throttle and lower rpm you can’t do much harm and you’ll likely find you can add advance until it gets too fussy to drive smoothly. Don’t take any liberties in the top right corner though (3000 up) - there lie melted pistons! Strongly suggest not exceeding 30 degrees total advance on the top line or even the next line down unless you are really sure what you are doing. You also need to check (and may well have already) that the figures that appear on your screen are being translated into the right number of degrees at the engine using a timing light. A rolling road with rpm hold is a great way to dial in cruise timing and the only really safe way of finding the best timing at full throttle above 3000 rpm. Does the Corrado coil pack have built in ignitors then? If not, what are you using to drive them? Nick
	Last Edit: Jul 4, 2020 17:39:32 GMT by vitesseefi 1967 Triumph Vitesse convertible (old friend) 1996 Audi A6 2.5 TDI Avant (still durability testing) 1972 GT6 Mk3 (Restored after loong rest & getting the hang of being a car again)

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vitesseefi South West Posts: 2,301	1975 Triumph 2500TC - Speeduino vitesseefi @vitesseefi
	Jul 4, 2020 17:44:43 GMT Select Post Deselect Post Link to Post Back to Top
	Your logs look very good btw, jealous of those!
	1967 Triumph Vitesse convertible (old friend) 1996 Audi A6 2.5 TDI Avant (still durability testing) 1972 GT6 Mk3 (Restored after loong rest & getting the hang of being a car again)

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omnipod Europe Posts: 197	1975 Triumph 2500TC - Speeduino omnipod @breadbasket
	Jul 4, 2020 20:11:37 GMT Select Post Deselect Post Link to Post Back to Top
	It is this kind of coil pack I'm using, built in drivers. www.heritagepartscentre.com/us/021905106-ignition-coil-vr6.html I picked a new one up cheapish from ebay a year or so ago. I don't know the specification of my shielded CPS cable but it seems to work well. I was only allowed 30 minutes or so play time with the car today so couldn't do much but the new spark table seemed to be an improvement. It's a long process I guess, I'll keep on tweaking it here and there when I get the opportunity. It would be good to get a feel for the spark table settings before I embark on the fuel side of things. I have most of what I need for that except the fuel pump, any suggestions about what works best? I have to run the return fuel pipe, my tank is a PI one with return. Do you have any measurements for the fuel rail, any idea about the distance between the injectors? Are there any easy to obtain injectors that are suitable besides the Vectra ones?
	1964 Austin Westminster A110 MkI 1975 Triumph 2500 TC 1993 Saab 900

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biturbo228 Posted a lot Posts: 1,868	1975 Triumph 2500TC - Speeduino biturbo228 @biturbo228
	Feb 24, 2021 22:57:14 GMT Select Post Deselect Post Link to Post Back to Top
	How's it been going getting the MJ working? Just pricing up a system for my 2000 which has a similar spec engine. Wondering if I could pinch a base map (I've scribbled down Nick's as a starter too).
	Simon Unibody Spit6 X1/9 Turbo XJ40 Superturbodiesel Citroen BX MG F Lada Niva Alfa 75 24v Triumph 2000 AJ6 Rover SD1

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omnipod Europe Posts: 197	1975 Triumph 2500TC - Speeduino omnipod @breadbasket
	Apr 9, 2021 22:07:34 GMT Select Post Deselect Post Link to Post Back to Top
	Well biturbo228 since I last posted there hasn't really been that much progress and I'm ashamed to say can't even really remember where I'm up to with it. I did actually start it last week for the first time since October 2020 and it fired straight up, which was great although I discovered that it now has a slight coolant leak from the radiator. To be honest if I think back I had to step away from the car for a while as I was having a few setbacks, the cheap coil i bought turned out to be just that and I had to rewire using an external driver and buy a different coil, the windscreen wipers stopped working and I had an intermittent loss of 12V power from my main relay which I think is either a shonky relay or my bad home made wiring loom, I never got to the bottom of it. The relatively new leather quill shaft oil seal starting leaking again too. Oh, yeah... and I was a weak weak man and got tempted by the lure of a opportunity that turned my head, I just couldn't resist and bought on a whim, so I'm now the owner of a 1993 Saab 900, so the last year of the classic Saab before GM took over. I really wasn't looking for another car and definitely not a project but I've spent the last 6 months using my quota of car fiddling time to weld both inner rear wheel arches, and generally forgotten about all things Triumph shaped. All being well I'll have the Saab on daily duties by the end of April and I can make room for the Triumph in the workshop again. The Triumph is actually entered into a local classic car event on the 7th August so I have to get back to it sooner rather than later anyway. I'll gladly send you my base map if you need it.
	Last Edit: Apr 9, 2021 22:08:18 GMT by omnipod 1964 Austin Westminster A110 MkI 1975 Triumph 2500 TC 1993 Saab 900

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