[Whynin6.2]

Went with an original psi rated cap.

2in fi spacers are pretty new and come with titanium blower bolts and yes they are the same plastic o ring combo.

And yes I know she's spinning fast. I havnt really gotten a good look at the gauge but I remember seeing 20 22 I THINK. It been a while since I have been on it hard trying to work out a previous trans issue.

But I am currently tearing into her. Got lucky enough to find studs and gaskets. Figured it was a sign.

 

[Whynin6.2]

The 22psi might of even been before the blower build and porting. So maybe we are close to 24.

I wish the Whipple was out before I started doing all this probably would of been cheaper 😄 here's a pic of the spacers.

And I lied they are 1in. 2in the blower would hit the firewall. My bad

 

[Whynin6.2]

Stock bottom end but maybe not for much longer.

I have not checked duty cycle. The shop I have do the work on this said we shouldn't need it unless we go to e98 or higher octane ect.

But it looks like I may have a bigger problem now🤦‍♂️. Maybe a lean issue? No debris in the exhaust.

cylinder 1

cylinder 3

cylinder 1 head

cylinder 3 head

 

[Whynin6.2]

It's exactly what you think it is. And I have no idea why there are no marks on the piston or cylinder head. It must of disintegrated. Currently there are cats and don't see anything in there. But there is some of the catalyst missing at the bottom and havnt looked into it yet.

As for electrodes. Maybe a year ago or so, cylinder 3, the electrodes melted and made a misfire. So I pulled all the plugs and the shop made changes. So idk maybe the pistons have been like that for a while now. But there is minimal scaring on the block.

As for the debris at the bottom it is just gasket material from removal and was not cleaned out yet. But I didn't notice the chip looking piece to the right of your green circle so I will take another look.

Thanks for sticking around for the discussion!

 

[Whynin6.2]

Thanks for feeling my pain 😄.

Cylinder 1 looks washed up and down where the pice is missing🤦‍♂️. So she might be getting bored out.

Can't recall fuel levels but that is a good point. Should of been logging during the runs. I guess i have to much confidence in the tuner. But I have only had it down the track maybe 3 4 times. And the last time is when the coolant issue started happening.

Yes dedicated e85. And definitely could of gotten bad e85. Choices are kind of limited out here unless I want to drive 30 min 1 way, or order barrels and let them sit a while.

Thanks a bunch for your great input! Whats weird is that cylinder 1 had the best compression when tested before tear down. Now it's time to make a thread for parts haha 😄

 

[Whynin6.2]

Well, looks there is piston blow by and then there is total blow out, 😳 so it looks like Lil Hemi unfortunately wins 🏆 the engine paperweight club contest today. 😉

..... Also a club I hope to never be a member of, just say'n. 🤞

Overall everyone's situation will be different on what happened to cause engine failure, but it often revolves around a moment of fuel starvation or an unexpected "bad fuel" situation.

When pushing high boost levels and increased ignition timing for large increases in horse power, the healthy engine fuel quality and fuel supply requirements narrow significantly where steps to increase this margin of safety are highly recommend.

I agree that an ECA (ethanol content analyzer) is a good investment to consider when burning 🔥 pump E85.

I am using a Zeitronix ECA gauge hidden in my glove box for piece of mind.

View attachment 11004

Looks clean! 👌

 

[Whynin6.2]

What boost a pumps are you all using? I'm assuming you gotta drop the tank to get in there? I'm thinking I'm going to have to add a boost a pump and/ or more pumps and bigger lines😬. Hopefully just the booster

When i get her back together I'm planning on some investigation time on the dyno. Watching 👀 everything like a hawk. Get it trackhawk 😄 and then we'll decide if we need fuel pump help.

Just waiting on a vvt spacer for the crank sprocket and she'll be back in, in no time. If everything goes well........🧐😬

 

[Whynin6.2]

Right on! Thanks for the write up! Sometimes engineers put stuff in good spots!! I might just have to get one on the truck. I'd rather be safe for this next build as it may have a little more....stroke....😬.

Where does the KB get its boost reference?

 

[Whynin6.2]

Right on looks like your truck enjoys your time on er! Are you interchilled? Any good gains out of wrapping the lines? I see pretty outrageous numbers already for what I think and only have a stage 1? Just now finally wrapped the headers so hopefully it will be even better.

As always thanks for the write up! I ended up going with the jms. Seems to have a lot of variables for activation. And ramp in voltage. And really the only one i could find in stock haha. I'll keep the page informed on how this one goes for me.

Finally got the parts and putting her back in this weekend.

 

[Whynin6.2]

Sucks you are going through this but great news your parts are now on hand, what is the displacement going to be?

Good idea on the BAP addition.I know you are rebuilding your engine, but 100% have your tuner make the necessary changes for the BAP or you may be doing all of this again soon if you don't. 😉

Sorry I have been away for some time working on this thing. It is going to be a 411. With a little less compression pistons. But looks like my new issue is the reluctor wheel that was installed on the short block was a 32 tooth 🤦‍♂️. Gotta start all over again.