bigdaddyvtec

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.........

alpalwal

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

rudebwoy

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

ososlohatch

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

bigdaddyvtec

----

bigdaddyvtec

.

bigdaddyvtec

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.

BigD

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

ososlohatch

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 ??

bigdaddyvtec

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