Gorilla Girdle

TheBac

Why do I keep doing this?
Staff member
Apr 19, 2008
15,610
1,866
113
Mid Michigan
You don't know. You haven't run steel pistons on the street. In fact, you haven't run a Dmax on the street for that matter. You don't know. You don't know the weight diff between the two pistons. Audi is running steel, and they spin faster than you (and so do many other diesels), for longer than you. You don't know. What's the difference in weight between a steel racing piston and an aluminum one? Or heck, you really think it takes a 35HP electric motor to reciprocate a 3lb weight at 4000rpm? When did YOU do the test?



You don't know. You don't spin 6000. I doubt you dyno anything for that matter. If you could have shown alum rods made power on a dyno, you certainly would have it tatooed on your forehead.

You don't know. We do know that diesel racing is starting to use steel pistons. Hence you can't know that ALL race engines use aluminum. In fact, there is a thread here where somebody is using beryllium pistons (lighter than alum, stronger than steel).

Here's one thing I don't know. How much HP it would take to break the vacuum generated by extracting your cranium from your rectum.

Wow. Pat's back....with a vengeance. Way to call a spade a spade.
 

Utahski

New member
Oct 20, 2008
546
0
0
Northern Utah
Thank you trent, this is why i hate the internet, for me it's hard to get across how i really feel with out pissing someone off, and getting my posts missinterpreted.

I certainly dont claim to have "all" the right changes and ideas, but i am glad to be a part of some of the latest innovation for the dodge and d-max parts world.

Nobody's misinterpreting anything......you come across as a knowitall braggart dickhead because that's what you are. .
 

sweetdiesel

That's better
Aug 6, 2006
10,390
0
0
52
Thailand
Lol, :spit: I was wondering what your take on the above subject was after reading the comp D LLY thread;)


Annoyed!

Wish more people would post about there carnage!


If your not breaking stuff,You aint making enough HP lol or atleast you aint reporting it


I appreciate people that have done this for me,And in return will do it for others.
 
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Yellow Jacket

WannaBe Sled Puller
Feb 11, 2009
917
0
16
Waterloo, IA
I had a LBZ block with SoCal billet mains, ran two seasons pulling with cut and coated LB7 pistons... I cracked two at the end of last season, when I tore it down number 2 main was pretty bad, not flaking yet, but pretty beat out, also number 3 main was starting to look pretty rough. I was cutting the oil filter open and hadn't seen any bearing material, but had about 8 hooks on the oil and filter when it happened.

I sent the LBZ crank to SoCal and it failed the mag test, had a hairline crack between #1 main journal and #1 rod journal...

Had to get a different crank, and I am having it internally balanced... I will post pics of tear down and post results of how it works following this season.
 

juddski88

Freedom Diesel
Jul 1, 2008
4,655
120
63
Chesterfield, Mass.
I had a LBZ block with SoCal billet mains, ran two seasons pulling with cut and coated LB7 pistons... I cracked two at the end of last season, when I tore it down number 2 main was pretty bad, not flaking yet, but pretty beat out, also number 3 main was starting to look pretty rough. I was cutting the oil filter open and hadn't seen any bearing material, but had about 8 hooks on the oil and filter when it happened.

I sent the LBZ crank to SoCal and it failed the mag test, had a hairline crack between #1 main journal and #1 rod journal...

Had to get a different crank, and I am having it internally balanced... I will post pics of tear down and post results of how it works following this season.

what did you use for main bearings and clearance?
 

McRat

Diesel Hotrodder
Aug 2, 2006
11,249
26
38
64
Norco CA
www.mcratracing.com
My "hard lessons learned", each of these sent us home at an event:

Bent stock rods.
Head gasket leak (head stud published spec wrong)
Cracked injector.
Stuck valves, bent pushrods.
Piston erosion
Piston seizure
Piston ring land collapse
Excessive blowby
Injection pump blew up
Transfer case explosion
Water pump spun on shaft
Spun main bearing
Belt jump from warped harmonic balancer
Riser pipes failure

That's 14 events where I went home with a hurt truck. I probably forgot a couple, dunno. But for every event we limped home, there were far more sucessful thrashings. Nearly all these items are "fixed" now, or so I hope, except piston erosion.

What's missing from my dance card is a broken crank (guess I'm overdue), and a trans failure.