Pics of the ringland ruckus...
 

Welp, finally got the old motor out and dissasembled.... Cylinder 4 FTL!!!

Note Pinhole in top of piston in bottom of pic... LOL

Enjoy nigs.........

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Re: Pics of the ringland ruckus...
 

shitty.... I'm guessing detonation? The top of that piston looks like 50 grit sandpaper.

Re: Pics of the ringland ruckus...
 

that ---- was running hot, too lean air fuel it seems + detonation been there with my 1st boosted b16 on vafc hack

Re: Pics of the ringland ruckus...
 

that some solid tunning, cant wait to see that on your next setup ;)

Re: Pics of the ringland ruckus...
 

----

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.

Re: Pics of the ringland ruckus...
 

It DEFINATELY wasnt lean... 12.5 AFs in boost was as lean as it got, BUT... Detonation??? Yes... Especiaslly once the ringlands went. I drove it for like 3 months like that so im sure the lovely smelling exhuast indicating lots of oil beiung burnt wasnt helping the detonation at all.... Thats what killed it... ALL the other cyliders looked fine, wierd.....

Dont worry ososlo... I wont be tuning my new setup; Thatll be MR Lee....Im sure it will be fine...

Someone else tuned this one.

Re: Pics of the ringland ruckus...
 

Man that pistons is screwed on top. It's so uniform I thought you just had some weird ass pistons at first lol

Re: Pics of the ringland ruckus...
 

id take it to the same tuner, he looks like he knows what he is doing .. lol , what was the main cause ?? to much timing or what ??

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Shitty gas (ya- timing) this was after ------- around with my original two tunes that were fine. We put more timing in it, i was on good gas (114/92 mix). Put straight 92 in it and viola...LOL

Re: Pics of the ringland ruckus...
 

yea, i hear leaded gas will mess with your afr's a little too. around what psi were you running, could you hear any detonation or is your car to loud to single out the sound of det. ??

Re: Pics of the ringland ruckus...
 

wow that thing is hurtin...i blew the ringlands on all four pistons in my old b16 and drove for at least a week like that and they still looked minty fresh on the top

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Ya I drove it for a couple months boosted after the initial damage, then another few unboosted, and it just gradually got worse and worse!!! Oh, and REALLLY let it have iot the last couple of days, to where # 4 wasnt firing...LOL, wonder why??

The other three cyl's looked fine.

HAHAHA

Re: Pics of the ringland ruckus...
 

leaded gas + wideband o2 = incorrect WB rading or a dead wideband

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That looks like snow. I call bs :P

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never in my life have a seen a piston look like that.. well done ;)

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like timing much? hope you paid the tuner with paypal...50 grit sandpaper was exactly what i was thinking. what program were you using?

Re: Pics of the ringland ruckus...
 

It was my own fault... He wanted to pull timing, i said no.. I was running a mix of trick and 92 at the trime so it was fine.... I DIDNT run the mix, and thats what fucked it up... The reason THAT piston looks so fucked up is all the oil getting in trhe combustion chamber and causing detonation ( i ran it another 2 months boosted after, and then 3-4 months N/A after that).... The other three pistons looked perfect on top. Once the lands went in number 4, then it got the hole in it... All the oil contamination lead to detonation.. which led to the 50 grit!! But ONLY in cyl 4.

I thought it was worthy of a carnage pic, looks like I was right. If you cant appreciate the raw nig-ality of it. Kindly, go ---- yourself!!!

LOL

:-*

Re: Pics of the ringland ruckus...
 

never seen that ---- before. that says a lot about those motors. i would imagine anything else would have just meted a hole.