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Old 2008-03-17, 11:56 AM   #274
sperry
The Doink
 
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Real Name: Scott
Join Date: Nov 2002
Location: Portland, OR
Posts: 20,335
 
Car: '09 OBXT, '02 WRX, '96 Miata
Class: PDX/TT-6
 
The way out is through
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Yeah, but after 5 minutes of idling, is started smoking more and more... I dunno if that's normal for the first time the motor heats up or something, but it was like some spy-hunter smokescreen action. Then we killed it once the water started coming out the overflow line that I didn't have a catch can on .

Either way, it really did startup easily. We disabled the fuel pumps, and cranked it for a few minutes to get oil pressure on the gauge, and for a bit longer to really ensure there was oil through the turbo and in all the galleys (the dipstick went from about a quarter over F before cranking, to abotu half a quart under F after priming). Then we renabled the fuel pumps, tweaked the hydra for the larger 800cc injectors with lower latency, and changed the closed loop RPMs so the car would idle in closed loop using the wideband for AFRs. Then on the first cranking it nearly started... on the second cranking it fired easily and went right to cold idle (1400 rpm). After a few minutes it was down to the 1000 rpm idle target, and after a little bit of hunting it was at 14.7 AFR.

EGTs ran up to about 1200F then settled down at around 1000F-1100F at stoich. When the water temps came up to 60F-70F the smoke started getting worse from the motor and over 70F water temp the system started overflowing (it was filled to the brim before we started, so even the tiniest bit of heat in the water was bound to overflow). We turned it off then as we didn't want to miss a real water leak because there was water dripping from the overflow.

Anyone know if all that smoke (it looked pretty blue, i.e. like burning oil) is normal for a first-start? I figured there's a bunch of assembly lube that needs to burn off, and I know the piston rings aren't sealed, so I expect oil smoke. But how long should it take to clean up, and how bad should I expect it to be before the rings seat?
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