Ouch, sorry to see that, glad you guys are ok. Hopefully you'll have that problem licked soon! Definitely tempted to do this to our (current) Champcar Miata and play with faster people :P.
@@Robert_Thorne8 So the hypothesis is that it was a bunch of brief oil pressure losses to ~40 psi and high oil temps that did both motors in? What were temps like? Oil & water? You said you aren't done yet, so does that mean new/rebuilt motors and more coolers for next time? It's a shame to see these motors being so problematic; they have so much potential in Miata track cars.
That sucks guys. Take a look at the ATS-V LF4 rods when you get a chance. I'm pretty sure they are a direct swap and titanium.
I think they are detuned for a flat power curve so rod strength isn't an issue. Oil pressure/temp over a race distance is probably to blame.
@@DSimms777 Ah gotcha. Probably correct on that. Oil cooler and accusump then?
Ouch, sorry to see that, glad you guys are ok. Hopefully you'll have that problem licked soon! Definitely tempted to do this to our (current) Champcar Miata and play with faster people :P.
Damn...
Did you end up fitting the accusumps?
not yet
I thought I heard oil pressure was fine. So was it oil temp?
oil pressure was ok, but dips to 40psi were common. combined with high oil temps, probably attributed to the slow failures
@@Robert_Thorne8 So the hypothesis is that it was a bunch of brief oil pressure losses to ~40 psi and high oil temps that did both motors in? What were temps like? Oil & water? You said you aren't done yet, so does that mean new/rebuilt motors and more coolers for next time?
It's a shame to see these motors being so problematic; they have so much potential in Miata track cars.