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Daragh

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About Daragh

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    Wicklow, Ireland

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  1. Daragh

    Correct spark advance for RV8 3.5

    Haha, obvious I suppose if I think about it......
  2. Daragh

    Correct spark advance for RV8 3.5

    I probably have it wrong as it shows as a negative value but it has one of the drop down options 'Fuel Press'. See attached....? 2018-12-01_12.54.03.msl from cold -.msl
  3. Daragh

    Correct spark advance for RV8 3.5

    Yep, I agree re the settings and set up but I thought the interface of changing the parameters would be the same. Just trying my best to look up stuff rather than ask stupid questions and waste peoples time on the forum. I am sure people's generosity on the forum will only last for so long and I want to try and keep my teachers happy
  4. Daragh

    Correct spark advance for RV8 3.5

    I've looked it up and recommendations varies but 3 bar seems consensus. If I am reading my MLV correctly mine runs at -5 dipping regularly to -7! That seems a strange, I guess I am reading this wrong.
  5. Daragh

    Correct spark advance for RV8 3.5

    Hi Lo-fi, Great to hear that it is not just me that 'features' don't do what they should. I think I missed something there, how did you identify I have low fuel pressure? What should it be? I actually have one filling a swirl pot and then a second new one feeding the engine. Fridge F I suppose that would make sense re the trigger angle and I might have another play with trim angle at another stage. Some of the videos I have found online as for Miatas, megasquirt seems popular in that world, so maybe it is different for them.
  6. Daragh

    Correct spark advance for RV8 3.5

    So, a little update......Good news, bad news! I did the timing on Saturday. The good news is that I checked the TDC on cylinder one and it appears to be correct and matched the TDC marker on the pulley. The second good news is that the timing appears to be set at 10 degrees BTDC so that is good. So the timing seems to be correct, I was secretly hoping that it might have been wrong. Now the bad/strange part. I am running MS1 and as per above you should be able to alter the timing with the Trigger Angle or the Trim Angle but when I changed them and burned each change, there was no change to the timing. No ,matter what I did it stayed on 10 degrees! Maybe I am missing something However, when I change the Fixed Angle to any positive number it is reflected at the pulley. And when back at -10 it matches whatever I put in spark table. Anyway, timing appears to be correct so I guess I don't need to worry about it but would love to know if I am getting something wrong. To give you all a laugh, my lambda arrived so I took off exhaust to clean up a tiny leak in weld on lambda bung but dropped some weld onto the threads...... no sensor going in there for the moment . I was sooo close to getting a tuning drive. Ah well, there is always next week. Thanks guys
  7. Daragh

    Correct spark advance for RV8 3.5

    Yep and new lambda arrived today so ready for step 2 when I get the timing right........
  8. Daragh

    Correct spark advance for RV8 3.5

    Yep, I have read that it should be at circa 45kpa and also that its not a biggy. I will update as soon as I get a chance to have a go at it and let you know how I succeed or fail miserably
  9. Daragh

    Correct spark advance for RV8 3.5

    Hi Guys, Didn't get to it today so will be the weekend. Thanks for confirm on SAW and interesting way of making sure it is fixed at 10 deg with the spark table, although mine is idling at 900 rpm and 70kpa so I would have to change nearer the top corner ! I've been reading up on that as well, but that is the next challenge. Basics first and one step at a time. Tks Daragh
  10. Daragh

    Correct spark advance for RV8 3.5

    😏 doh! You live and learn, makes sense I suppose. tks
  11. Daragh

    Correct spark advance for RV8 3.5

    Hi Guys, Hi-Lo, Thank you for the clear and informative reply. I have actually read up a lot and each time I re-read I seem to learn a little bit more. The general information out there will tell you that you are looking for 10 degrees BTDC and will explain how to do it, but it ddoes not tell you how to check if this setting is specifically suitable for your individual engine. Your advise above is great and a simple way to test, just what I was looking for. Jon, Again, thank you for your clear and informative comments. My Landie is in fact up and running and the map is directly from Nigle and unchanged, so I would guess that it is fairly robust. It appears generally down on power accross the board and so I am making sure the basics are sound before changing anything else. I am actually running MS1, so our screens differ (I have come accross some examples of MS2 interface). However, from your comments I understand where you are going with it and I will therefore apply accordingly to my own screens. Strangly, in this regard I have actually found varying advice as to weather I should alter the 'Trim Angle (Deg)' or the 'Triggger angle (Deg)' to alter timing! I think MS2 simplifies this. Bowie, I am guessing from your comment that I have this wrong I presumed that I should remove belts before attempting to manually turn the engine. I guess you are about to tell me I don't? Thanks guys for all the help. I am hoping to have a go at this tomorrow. I actually bought an AccuSpark timing gun (as they were meant to be good and reasonably priced) to learn and try more but it will not pick up a signal from the new coil leads, although it does work on my other cars. I have borrowed one from my mechanic so hopefully that will work. Anyway, I will have a play tomorrow and see how I get on. Thanks again.
  12. Daragh

    Correct spark advance for RV8 3.5

    Hi Jon, Sorry, I missed your initial comment - Are you talking about setting the base timing, or after a spark map? To be honest, I'm a bit of a novice so not sure how to answer the above. The engine is being run by the MS1 and therefore I would presume the map will be involved. So I guess to answer your question, I presume I am setting it after map..... but I dont know how else to do it. How do you set base timing without ECU? Is base timing the timing at idle and using the map is checking timing under load ie up the rev range? Tks again.
  13. Daragh

    Correct spark advance for RV8 3.5

    Thanks guys, As per Garry, it can be between 3 and 10, but is there a way of telling what is the best degrees for mine? I'm running regular pump fue of RON 95l. Jon, to clarify, it is an MS1 with EDIS so no distributor. So, based on my understanding of your advice, I keep changing the timing in tunerstudio till it matches the mechanical TDC timing based on strobe i.e. set TS fixed angle to zero and alter trim angle until the timing gun reads TDC on the pully and then this tells me what degrees BTDC it should be? I'm not sure I have this correct as this would surly mean my timing, if based on TDC would be zero advance. Perhaps this was a bad example. Maybe what will happen in reality is that I keep trimming the angle until it shows TDC on pully and this will correspond to a positive BTDC figure eg 3 or 10 or whatever which will then tell me my correct timing? So, have I got the mechanics of your advice correct? Bowie69, identifying actual TDC might be a good idea aswell, it just the thought of taking off the belts here is -1 is not appealing to day Thanks guys,
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