It is Diamond Like Carbon coating. "These coatings exhibit a desirable combination of a low coefficient of friction and high micro-hardness, making them extremely effective in many tribological and wear applications."
Duramax Monotherm Pistons
- Thread starter Trippin
- Start date
In a Cat 3500 they held up well when cylinder #7 ate all 4 valve heads. Piston top was beat up pretty good but was still in one piece & didn't have a hole punched in it.
Cat has been running these for several years now with very good results. I just got back from C175 school in Peoria & that is the piston used in the high pressure common rails.
Cat has been running these for several years now with very good results. I just got back from C175 school in Peoria & that is the piston used in the high pressure common rails.
Ever heard of a John Deere power shift? They have been doing this very thing for years....... Starting clear back in the 60's.....
the original powershifts were nothing like a modern allison, AJ. Come on, you should know better......
under the speeds and power we are putting through the trans, you need electronic control for a clutch-to-clutch trans. Not to mention, to make the thing SHIFT BY ITSELF BASED ON VEHICLE SPEED, LOAD, AND THROTTLE POSITION. Did the original powershifts do that? Of course not. So no, they havent been "doing this very thing for years"
Saw my first C175 20 today at work, thing is amazing...
Dont all the 3500 engines use steel pistons? I dontt hink they care about weight as much as we do.. :rofl:
Takes all I have to lift a rod and piston from a 3516 :spit:
What do you think it costs to take a million dollar machine ( maybe more) and a bunch of high paid engineers and prototype crew amongst other things and make 5 sets of pistons?
What if you owned stock in this company and expected your monthly check and they told you not for a while because we're prototyping? The tooling alone costs a fortune. They will not sell very many of these pistons and they have to recoup their costs.
the original powershifts were nothing like a modern allison, AJ. Come on, you should know better......
under the speeds and power we are putting through the trans, you need electronic control for a clutch-to-clutch trans. Not to mention, to make the thing SHIFT BY ITSELF BASED ON VEHICLE SPEED, LOAD, AND THROTTLE POSITION. Did the original powershifts do that? Of course not. So no, they havent been "doing this very thing for years"
AJ Cole is just being his asshole self Ben.
Makes sense. I guess I never really looked at it from the r&d perspective. :thumb:
Saw my first C175 20 today at work, thing is amazing...
Dont all the 3500 engines use steel pistons? I dontt hink they care about weight as much as we do.. :rofl:
Takes all I have to lift a rod and piston from a 3516 :spit:
Yes it's a very cool engine. Look up the main cap torque procedure, interesting to say the least.
They have used all kinds of pistons in the 3500, all aluminum, two piece steel and alminum, all steel etc. etc.
The weight on the monotherms & carrillos, from what guy posted, will come in lighter than a stock rod and piston. I can't wait to see some results from the big boys running these.
Since more and more diesels are coming with steel pistons from the factory, the only hope for a serious price drop is if Dmax goes steel.
Sell 100,000 pieces, and a million worth of R&D is $10 a unit.
The next big update to the duramax will be a complete redesign in the next few years. And by complete, I mean COMPLETE. As in...no more carryover Isuzu 8GF1 architecture like the duramax has been from 2001-today.
So even if they do go to steel pistons in the "next" duramax, its highly unlikely the pistons will retrofit into any of the [Isuzu] duramax's.
So even if they do go to steel pistons in the "next" duramax, its highly unlikely the pistons will retrofit into any of the [Isuzu] duramax's.
Who will they be in partner with, if anyone next? How do you know this is true?
The american taxpayer?
At least I would be interested in a diesel pickup, as opposed to the 1,000,000 other things they spend money on I couldn't possibly give a fk less about :rofl:
GM powertrain.........
They've learned plenty of good (and some bad) from Isuzu as far as what it takes to make a great diesel engine. Im confident they will do fine on their own. (unlike ford, who STILL hasnt gotten it 100% right with the 6.7)