Window'ed

Yesterday, me and my buddy went to tune his 14:1 460CI motor and it had a catastrophic rod failure. We had a spark issue at first due to a low voltage condition, with that corrected we began making pulls. Starting at 32° of timing with c16 fuel the motor sounded healthy. After the first 2 runs the engine had ran through the 5 gallons c16 i brought. So we switched to VP110 and bumped the timing up to 35°, at only 6k RPM with 12.1AFR it chucked a rod out of the side of the block. The Aluminum rods were not replaced during the rebuild as they only had 60 runs on them(one did have a small nick in it but it was releived) The rod broke at the thickest part. I posted a few videos on youtube..... looks to be an isolated rod failure?

https://youtu.be/pXxlzKZA1Xs

https://youtu.be/3Qeg_lv-Cfc

https://youtu.be/AOqhUFIHTt4

Ouch that hurts to look at

Oww

Also, vertical recorded video....do you want to give people cancer? Because that's how we get cancer

Lol sorry

Wes06 said:

Oww

Also, vertical recorded video....do you want to give people cancer? Because that's how we get cancer

Click to expand...

Wut?! [emoji849]lol

Hummm, Seems to me failure was imminent on a 14:1 c/r motor when you went from 116 motor octane to 107 and added timing ??


..

Yeah, idk was that a huge mistake?

well if the 116 octane was near its spark limit, and you reduced octane followed by adding timing. then........yes..............huge mistake

I cant tell if these post are serious or not...

No, 42° would be the limit...

Generally you keep adding timing untill it stops making power and it was 110 not 107

c16

VP110

Looks like its 107 from a seller. so dropped 10 points of octane

Why the fuck would they call it 110

welcome to reading the fine print on shit
sounds like you need some nitro

You're making shit up


VP-110 RACING FUEL - Not your “standard” 110! Highest rated MON of any 110 fuel on the market. ... In fact, it's higher than any other 110 octane racing fuel on the market.

C16 and vp110 are two completely different fuels.

lol heaton, your retarded, read the fine print

Good stuff here, love these threads and continue to be amazed each time a new one appears.

Clearly, we were only at 35° of timing though. The motors had way more timing in the past. 110 is 110

RON, MON or R=M/2 (Octane)?

"Formulated for use in naturally aspirated engines with CRs up to approximately 12:1-13:1." Your buddy is at 14:1 you said. So....