My supra had a bad time last night.

zbrown

funky_monkey58;278797 wrote:
.....

Well the bad luck began, my hood flew open on hwy 10 going about 70mph and fold backwards cracking my windshield and denting my roof, alright that sucked ass. So I ziptied it back shut and did not have any more problems with it.

Don't feel bad.... you surely are not the only one that has done this lately......:mad:

I highly doubt it had anything to do with tunning.................. either a oiling or bearing setup issue....... that is i am assuming the noise you are hearing is a spun bearing

funky_monkey58

D S ohM;278804 wrote:
Shitty!!!!!!
Yarp.
91nbtsi;278805 wrote:
Uhm, what fuel were you running? Timing? Sucks man. Good luck with rebuild.
A mix between 92 octane and 110.
Grr;278810 wrote:
well, shit happens. Get it fixed! What did i tell you about that hood, dumbass
Yeah oops. The hood was my stupidity for sure.
zbrown;278811 wrote:
Don't feel bad.... you surely are not the only one that has done this lately......:mad:

I highly doubt it had anything to do with tunning.................. either a oiling or bearing setup issue....... that is i am assuming the noise you are hearing is a spun bearing
I will know for sure in the next few days when I tear it apart for replacement of a few key parts.

treimche

AFR leaner than 12:1 or so will certainly damage your motor, ESPECIALLY if you're not on race gas. What do most people tune their turbo motors to on race gas, about 12.5:1 at most?

funky_monkey58

treimche;278937 wrote:
AFR leaner than 12:1 or so will certainly damage your motor, ESPECIALLY if you're not on race gas. What do most people tune their turbo motors to on race gas, about 12.5:1 at most?

I think your information is off just a bit. I generally shoot for a 13.5 afr. For a good tune.

Bp-08

shouldnt it be 12:1 at WOT.

beachbum_jon

zbrown;278811 wrote:
Don't feel bad.... you surely are not the only one that has done this lately......:mad:

I highly doubt it had anything to do with tunning.................. either a oiling or bearing setup issue....... that is i am assuming the noise you are hearing is a spun bearing

you didnt do what i think you did...did you?

treimche

funky_monkey58;278944 wrote:
I think your information is off just a bit. I generally shoot for a 13.5 afr. For a good tune.

That's why you blew your car up then. 13.5:1 on a turbo motor is gonna meltdown. That might work on an N/A motor however.

91nbtsi

Good luck with 13.5:) You can damage bearings due to knock. Let's see some pics when you get it apart!

funky_monkey58

I really do not see how I could have damaged anything with my tune. Considering I did not go into positive boost territory beyond 8psi max as that is what my wastegate is set to. And I was on the break in cycle so I really did not want boost affecting the piston ring seals.

treimche

Well what was your a/f ratio and how much was it knocking? Even a little boost, running too lean and knocking will destroy bearings.

funky_monkey58

legacy image
http://www.truaxmotorsports.com/supra/SupraKnock.AVI
I don't think it was cause by me running lean or detonation. But we will see once I pull it apart if a piston is fucked I will eat my words.

fdfreak

zbrown;278811 wrote:
Don't feel bad.... you surely are not the only one that has done this lately......:mad:

yep, it happened to me a year ago. scared the living sh*t out of me. hood was trashed and my roof was too. Nothing happened to my windshield though.

funky_monkey58

Heres some more pics.
legacy image

funky_monkey58

Carnage pictures this is what I found in rod #3
legacy image

If I would have had fair warning the guy I got the block from was incompetent in putting together an engine I would have had the crank cut and smoothed out.
When I first popped the rod cap off it looked like there was no bearing at all and that thin pieces were what I managed to scrape off with a screwdriver.

Grr

lol'd at that. when you buy a motor ive found its best to just use the parts and re-assemble everything yourself

zbrown

zbrown;278811 wrote:
I highly doubt it had anything to do with tunning.................. either a oiling or bearing setup issue.......

this... lol

funky_monkey58

Grr;279856 wrote:
lol'd at that. when you buy a motor ive found its best to just use the parts and re-assemble everything yourself

I should listen to you more often.:icon_salut:

On another note I got the block completely stripped down and it looks like I might be able to do a hone job and replace the rotating assembly.

Oh and I threw the crankshaft like it was a shot put right out the door of the shop..... Where it still lies and I will cut it in half and use it as an anchor for my canoe.

91nbtsi

zbrown;279866 wrote:
this... lol

Ahh, well from the first post all we knew was that he went out and was doing some tuning. No knowledge of a fresh engine!

Good luck with the rebuild!

funky_monkey58

Well the Block pistons rods and crank are all at the machine shop now.

I am really looking forward to this being done.

Rexwagon

GL to you in the future. hopefully it all turns out for ya

Fargostreet.com

My supra had a bad time last night.