Thursday, July 06, 2006 - 08:02 pm, by: Bill Bogiatzis(Boggie23)
Maybe the question should be who has blown up a regualr serviced and well looked after motor run with good coolant, oils, filters that is serviced every 5000km at least.
Thursday, July 06, 2006 - 11:43 pm, by: Shane Ilich(Ferret)
I've blown the unblow-able head gasket if that counts??
Trick is NOT driving it at around 3000rpm on the freeway for an extended period of time, possibly as long as 15 minutes, without any coolant courtesy of an (unnoticed) blown radiator top-tank dumping all your fluid...
PS and no fluid at all means no fluid to give the fluid temps sensor a reading, so it basically sat at its normal point
PPS and blinki-dash causes the bottom row of the dash display to disappear, and the warning chime not to sound, meaning that any coolant level or oil temp warnings went unnoticed/unsounded (depending on which way you want to look at it).
Friday, July 07, 2006 - 09:02 am, by: Braden Murdoch(Ribfeast)
Aftermarket capillary-style coolant temp sensors are handy If it registers a sudden temperature drop when your dash one doesn't, then pull over immediately!
I think leaning out and overheating would be the main 1JZ killers. Can't see how bits of turbos can get sucked into the engine with the intercooler in the way, and the exhaust turbine shouldn't be sucked back into the combustion chamber?
Friday, July 07, 2006 - 11:35 am, by: Shane Ilich(Ferret)
Duy Le wrote on Friday, July 07, 2006 - 08:38 am:
Shane, Now thats getting OWNED!!
Haha, yeah, you're probably right.
Even so, if still didnt BHG "properly" - could still drive it around off-boost with no issues - just if you sustained boost for more than about a second, then the temp started going through the roof.
Anyways, it was a good excuse to do the big single and manual conversions whilst i had the engine out repairing the head gasket
Paul Brockbank wrote on Friday, July 07, 2006 - 12:16 am:
I don't understand where a vacuum is created around the exhaust ports... but that's probably just me.
Usually there isn't a vaccum there pulling into engine, but if the turbo's turbine goes, well that changes everything as reversion of flow can occur for a short period of time. With the short ass exhaust manifold runners, it very quickly reaches the engine combustion chamber via the exhaust ports. Timing would be critical, as it doesn't always happen, but it happen enough for it to be a concern if going for massive boost on stockies.
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If it registers a sudden temperature drop when your dash one doesn't, then pull over immediately! 
