I would like to hear your thoughts about this burn down

[108snowbandit]

6-10k
500 miles
12 assault

 

[skibreeze]

That is ugly!

 

[Going West]

Cold seize.

 

[Brillnator]

Any modifications or is it stock motor? When did it happen at the beginning or the end of the day?

 

[108snowbandit]

Beginning two miles in
Turbo
10.1 afr
Temp 127

 

[frog]

need to see the top of the piston. Is there a "ring of truth" around the outer edge of the piston? Just cause your af was 10-1 doesn't mean that it wasnt detonating. May have been a simple cold seize or deto will do the same thing.

 

[108snowbandit]

 

[108snowbandit]

Yes did hit set a lot at part throttle

 

[skibreeze]

Definitely not 10:1 there.

 

[backcountry yardsale]

Detonation.


Sent from iPhone 5

 

[108snowbandit]

Well all I can go off of was the gauge

Any ideas why

100ll at 10# at 7500 ft

 

[108snowbandit]

500 miles on sled only 10 miles with turbo

 

[Going West]

The top of the piston is totally washed off so there was plenty of fuel. Is that det around the edge or is it aluminum flake form the cylinder. Did you try and run this after it die a time or two. It looks like it was run after it stuck the first time.

 

[108snowbandit]

No it died and towed back

What is the best plan from here short block? Fix cylinder and rktek kit

 

[slash]

looks like DET but i think a cold seize finished it

 

[skibreeze]

Give up the cold seize argument, stock Poo pistons are stupid loose. 10 miles on the turbo, this is where to look for the problem.

 

[whoisthatguy]

The good news is that you get to put a 2013 top end, in it.

 

[108snowbandit]

Skibreeze I had fuel at 10.1 on the guage at wot and temp was at 127

There was det at part throttle but not wot

What's the best plan from here

 

[skibreeze]

The good news is that you get to put a 2013 top end, in it.

I seriously doubt a 2013 monoblock will just bolt on to the bottom end w/o modification, not to mention, he doesn't need a new monoblock.

 

[skibreeze]

Skibreeze I had fuel at 10.1 on the guage at wot and temp was at 127

There was det at part throttle but not wot

What's the best plan from here

I am by no means an expert in tuning, not even close. I'm guessing the problem is not at WOT, if you have det at midrange somewhere it is too lean and since very little time is spent at wot, the midrange is super important to have the right AFR. I have the benefit of a great tuner to ride my sled and make sure it's right.

I would put in RK Tek's pistons and send the block to Millenium to be re-nik'd. and get the tuning figured out before riding it again.