Built/sleeved motor failed | Any coyote experts?

[isedawishy]

Anyone very familiar with this platform and failures? Would like to have a side conversation to see what you think.

Thanks,
Brien

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[Crackerjack17]

Are you saying your sleeved motor failed? Or our you asking if anyone knows of a sleeved motor failing?

 

[isedawishy]

Sorry, mine failed. Need help in determining root cause

 

[F1scamp]

A bad tank of gas can take out the strongest motor... what failed?

 

[Reds197]

What power level? 1250 hp+ on forged rods is playing with fire. Billet or forged rods?

 

[olaosunt]

Sorry to hear man- that's why I am keeping "spares ".
Who built the motor ?

 

[MadCow]

Anyone very familiar with this platform and failures? Would like to have a side conversation to see what you think.

Thanks,
Brien

Your post is too vague. There's any number of reasons that a motor can fail that have nothing to do with the strength of the internals or block. If a motor is fully built and you don't put any oil in it it's going to fail. If a motor is fully built and you put too much water through the intake it's going to fail.

 

[isedawishy]

A bad tank of gas can take out the strongest motor... what failed?

E85 that consistently tests at 75%. Log was good the day before at 20# and the head gasket pushed out at 23#- same gas. Piston and plugs do no show and signs of detonation. No other cylinders show signs. Was only running 21 degrees timing.

The head casting around #4 is literally melted and there is metal from the piston on the sleeve which builder says indicates it melted.

What's interesting is the sleeve on #4 catches on my fingernail, like it's not flush. Builder says that's a result of the gasket going.

I've already had the injectors flow tested and results came back perfect.

Builder is saying detonation caused the failure.

What power level? 1250 hp+ on forged rods is playing with fire. Billet or forged rods?

Estimating 23# to be around 1200rwhp. First time at that boost levels as I've been slowly adding in boost. It has billet I-rods.

I'll post some pics in a bit

 

[olaosunt]

First sleeved motor I had in my Hellion car failed after head gaskets blew -I can't remember now which cylinder (s).Never even made it to dyno but had some WOT street logs .
I sent the block back to builder and had to replace the entire 1500 rotating assembly after being told several rods were bent/pistons all scored .I thought the motor was blowing too much "steam" from day one but confirmed leak when it lost all coolant one day just driving along on interstate .

 

[isedawishy]

For now just posting pics links to albums and video rather linking individual pics, sorry.

https://www.flickr.com/photos/19082806@N06/albums/72157695233595565

The markings you see on #4 are from me using a borescope with mirror on the end and spinning around to see the walls. Don't see any speckling on the piston, the valves or the plugs.

Video showing the sleeved on #4 being raised a bit more than others.

[ame]

 

[Reds197]

Stock LPF intercooler? IATS would be insane....even on E85. Hopefully tune is pulling timing as IAT increases. 21* with no timing retard and the intense heat from 23lbs sounds like an issue.

Look at IAT on the 20psi log. You should see total timing reduce if you are 200ish or more.

 

[F1scamp]

It always sucks pulling a motor down trying to figure out what went first. The head being torched is from the gasket failing, did the gasket fail because of the liner, did the liner move due to hydrolock, did it detonate because the spark plug failed... At that kind of level I wonder if cometic's would be a must have?

 

[isedawishy]

Stock LPF intercooler? IATS would be insane....even on E85. Hopefully tune is pulling timing as IAT increases. 21* with no timing retard and the intense heat from 23lbs sounds like an issue.

Look at IAT on the 20psi log. You should see total timing reduce if you are 200ish or more.

Day before at 20# I had a log,

Started in 3rd at 2500 and IAT was at 83, at 7500 it was at 109. I stayed in it and it shifted to 4th. I got out of it at 7000 in 4th and IAT were at 134. 1.5 seconds after getting out IAT were 123, another 1.5 seconds 116.

It always sucks pulling a motor down trying to figure out what went first. The head being torched is from the gasket failing, did the gasket fail because of the liner, did the liner move due to hydrolock, did it detonate because the spark plug failed... At that kind of level I wonder if cometic's would be a must have?

It has cometics and ARP2000 studs. If it detonated shouldn't there be visible signs on the ceramic on plug, top of piston and valves?

If the sleeve moved due to hydrolock is it probable to only affect one cylinder?

 

[Tommy V]

Hey man,sorry to.hear this and I know the knot in the stomach something like this causes.U talk to my buddy Ken a good bit and i.seen your log of the 20#boost and can't believe they asked u to.turn it up to 23 pounds with what I seen going on with the knock.sensorsI think u was definitely getting detonation and that takes a lot of heat to do with e85.I hope the builder works with u to.get this figured out and good luck.

 

[isedawishy]

Hey man,sorry to.hear this and I know the knot in the stomach something like this causes.U talk to my buddy Ken a good bit and i.seen your log of the 20#boost and can't believe they asked u to.turn it up to 23 pounds with what I seen going on with the knock.sensorsI think u was definitely getting detonation and that takes a lot of heat to do with e85.I hope the builder works with u to.get this figured out and good luck.

Most knock it saw at 20# was 0.02. Is that enough to melt a piston and head casting at 23#?

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