Smoking out the exhaust
In my opinion its either this:
or this:
Unfortunately I am leaning more toward scenario #1. Your timing map is ******* AGGRESSIVE. You are on stock engine. To be honest I was shocked when you posted your maps/results. I thought: "its only a matter of time".
or this:
Unfortunately I am leaning more toward scenario #1. Your timing map is ******* AGGRESSIVE. You are on stock engine. To be honest I was shocked when you posted your maps/results. I thought: "its only a matter of time".
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Wow, that first post is exactly word for word the same problems I am having right now. My current solution is:
...and to replace valve seals, headgasket, and rings. I just don't understand how this happens all of a sudden. That sucks dude, I know exactly how you feel
Head gasket repair (AGAIN) - MX-5 Miata Forum
Have you checked your plugs to determine which cylinders are leaking oil? Also I can't find your spark map...
...and to replace valve seals, headgasket, and rings. I just don't understand how this happens all of a sudden. That sucks dude, I know exactly how you feel
Head gasket repair (AGAIN) - MX-5 Miata Forum
Have you checked your plugs to determine which cylinders are leaking oil? Also I can't find your spark map...
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Joined: Jun 2006
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From: Republic of Dallas
Chaning the oil AFAIK is going to affect viscosity a tiny bit. Dirty stuff will be more 'gloopy'. That a technical term you ********, so lay off 
The thinner new oil might be going past turbo seals/ring/valve seals more. If I knew any real specific **** about restrictors I would probably be saying +1 to the restrictor idea, but I dont so I wont. But it might be consistent with the fact that changing the oil affects it so much.
And I guess I say this in every damned thread, but that does not mean I am wrong. Comp test. At least then you have the peace of mind of knowing your rings are not shot.
The thinner new oil might be going past turbo seals/ring/valve seals more. If I knew any real specific **** about restrictors I would probably be saying +1 to the restrictor idea, but I dont so I wont. But it might be consistent with the fact that changing the oil affects it so much.
And I guess I say this in every damned thread, but that does not mean I am wrong. Comp test. At least then you have the peace of mind of knowing your rings are not shot.
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Joined: Jun 2006
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From: Republic of Dallas
the 35* **** is a little wack, but this is mine at 8.6:1 4*behind MBT (no detonation limit anywhere)
I've never tuned a 1.6 or seen a spark table from a respectable individual, but I don't think his spark table is unsafe. Where are his det-cans?
I've never tuned a 1.6 or seen a spark table from a respectable individual, but I don't think his spark table is unsafe. Where are his det-cans?
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At 9.4:1cr on pump gas, I'd call that a bit unsafe.
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Vash is making over 250rwhp, running 20* of spark on his stock 1.6L at +12psi. I suggested this day would come, but I was shrugged off. "It is what it is" what does the 
know? who am I to know?
know? who am I to know?
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Joined: Jun 2006
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Total Cats: 375
From: Republic of Dallas
Is his car 9.4:1 or 9.0?
Playschool Dynojet or a proper adult dyno? Tone down your disrespect.
I stand corrected. However smaller cylinder bores allow for more spark advance due to some weird volumetric math **** that I don't understand but that's the logic behind motorcycles running 15:1 compression ratios with 30* of advance at 100kpa...but I bet piston speed has something to do with that too.
I stand corrected. However smaller cylinder bores allow for more spark advance due to some weird volumetric math **** that I don't understand but that's the logic behind motorcycles running 15:1 compression ratios with 30* of advance at 100kpa...but I bet piston speed has something to do with that too.
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Joined: Jun 2006
Posts: 29,085
Total Cats: 375
From: Republic of Dallas
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Joined: Jun 2006
Posts: 29,085
Total Cats: 375
From: Republic of Dallas
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