Anyone blown a stock boosted motor yet?

[texasbound972]

Crawford recommend me to run 0w40. Idk, maybe quirt knows what he's doing lol.

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[GsxrMe]

From my experience I have to run 10w50 in my Turbo Busa when factory was 10w40. It was 10w50 because the oil passing through the turbo. Lighter oil warmed up faster and thinned out. I really wish we had someone make something that could show the oils properties while running not just oil temp and pressure.I live in south Florida and it seems like were always at 76-106f

[hotfootpowder]

hi guys,


just some quick update. manage to open up my engine, and the rod bearings, crankshaft and crankshaft bearings seems to be out of commission. definitely oil starvation of some sort. most probably due multiple things happening at the same time; new oil cooler, new oil brand/weight... etc. I think this problem is not limited to FI engines right? cause I saw similar problems with NA in other threads.


since I bought the car used, I don't have any warranty, so i'll either replace the parts or do and engine swap. currently getting price quotations.

[raven1231]

Originally Posted by hotfootpowder

hi guys,


just some quick update. manage to open up my engine, and the rod bearings, crankshaft and crankshaft bearings seems to be out of commission. definitely oil starvation of some sort. most probably due multiple things happening at the same time; new oil cooler, new oil brand/weight... etc. I think this problem is not limited to FI engines right? cause I saw similar problems with NA in other threads.


since I bought the car used, I don't have any warranty, so i'll either replace the parts or do and engine swap. currently getting price quotations.

ls1

[evo4g63]

Originally Posted by Reaper

Stock pistons are very very thin at the wrist pin and not fully boxxed. An over rev alone can pull the wrist pin out of the bottom of them. Stock rods are strong.

This is true, wrist pin came out on mine on the dyno back when I had the turbo setup and "BOOM" fire with a nice windowed block.

[Astroboy]

Originally Posted by evo4g63

This is true, wrist pin came out on mine on the dyno back when I had the turbo setup and "BOOM" fire with a nice windowed block.

Did you over rev it?

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[grant]

Full blown kit
3km after install on no boost driving down road to open thermostat and check for leaks
rod knock
15,300km total on car

now have 2000+ boosted km's on the stock 2015 replacement motor while I get ready to get the original one built

[Astroboy]

So far I'm at 5k miles boosted. Avo kit, straight 2.5" pipes, k&n filter, radium dual catch cans, retuned by ATS in Denton Tx, and just recently installed an avo oil cooler.. So far no blown motor. I use to be naive and knew nothing about warm up time and use to just get in the car and drive on the base avo map on regular 0w20 Toyota oil without an oil cooler in Texas weather to. Only thing that failed on me were the motor mounts, innovated wideband (doesn't really count), and my dipstick o ring which I tore after messing with it :P

I now wait till the oil temps reach at least 60-70c before stepping on the gas a little harder..
I pray every time I get in that car to make sure it doesn't fail on me lol.
Thanks Jesus

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[Astroboy]

Originally Posted by grant

Full blown kit
3km after install on no boost driving down road to open thermostat and check for leaks
rod knock
15,300km total on car

now have 2000+ boosted km's on the stock 2015 replacement motor while I get ready to get the original one built

That sucks... So it blew while driving? And then you checked the thermostat?

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[sirsol66]

Originally Posted by grant

Full blown kit
3km after install on no boost driving down road to open thermostat and check for leaks
rod knock
15,300km total on car

now have 2000+ boosted km's on the stock 2015 replacement motor while I get ready to get the original one built

That's really strange, sounds more like a oil line issue or something.

[evo4g63]

Originally Posted by Astroboy

Did you over rev it?

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No, the car made a sputter type sound sort of what sounds like spark blowout during a WOT pull almost at redline on the dyno. I figured the car was fine as it was still running and no abnormal engine sounds. We made anther WOT pull and poof, giant flame and a huge hole in the block. Once I got the engine apart for analysis the wrist pin was what appeared to have let go.

[sw20kosh]

Originally Posted by texasbound972

Crawford recommend me to run 0w40. Idk, maybe quirt knows what he's doing lol.

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Lmao

[grant]

Originally Posted by Astroboy

That sucks... So it blew while driving? And then you checked the thermostat?

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I was just running it at 30-40 kph down the road to warm it up enough to confirm the thermostat had opened to burp the coolant system

Originally Posted by sirsol66

That's really strange, sounds more like a oil line issue or something.

ya I'm 90% sure it was something on its way out before the turbo;

change the oil before storage, dumped it when I had the pan welded for the turbo return, cleaned the pan 3 times and ran oil in it for 30-45 seconds and dumped it, fresh oil again for the shake down/fluid check and got 3km on it before it started knocking. The car has only ran Amsoil signature series since 1000km break in and changed ever 4000-4500km since new. It sucks, but I'm over that, time to look into building it

[Astroboy]

Originally Posted by evo4g63

No, the car made a sputter type sound sort of what sounds like spark blowout during a WOT pull almost at redline on the dyno. I figured the car was fine as it was still running and no abnormal engine sounds. We made anther WOT pull and poof, giant flame and a huge hole in the block. Once I got the engine apart for analysis the wrist pin was what appeared to have let go.

How much boost were you running

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