Powdered metal/forged rods

[Joe Walsh]

I was reading Chris' thread about the new 2011 Mustang.
In the specs on the new 5.0 modular engine, they list a forged crank and forged-powdered metal connecting rods.

HUH!?..
I know about powdered metal rods, and always thought that they were a wink link in our 4.6 DOHC engines.
I looked up forged-powdered metal rods and found this interesting article. (please forgive the SuperChevy link)

http://www.superchevy.com/technical/...rds/index.html


Apparently forged powdered-metal are some serious strong rods!...

That new 5.0 modular engine is going to be a bullet proof bad-boy!

(Just don't hit the hypereutectic pistons with too much NOS!)

[DOOM]

Pretty much bullet proof motor right outta the box.

[SC Cheesehead]

Powder metal technology has really come on in the last decade. Various applications offer superior metallurgy over traditional forging and casting processes.

Forged powder metal advantages:

• High strength – low weight design
• Less machining offers high dimensional accuracy
• Directionally independent properties through isotropic material structure
• Increased precision and tight tolerances
• Excellent surface finish and reduced burr waste
• Improved machinability versus conventional steel forged processes
• Consistent heat treatment results

I'm still an old foundry guy at heart and keep up on this stuff...

[Bradley G]

How do you say the name of the pistons?

[SC Cheesehead]

How do you say the name of the pistons?

Phonetically: Hi-per-YOU-tek-tick

Here's a link. Believe me, Ford's doing it right on the new 5.0.

http://en.wikipedia.org/wiki/Hypereutectic_piston

[RacerX]

Are they using hypereutectic pistons in those??? That's crap! Can't do too much for power adders with those. Breaking lands between rings can be a prob with those. Too much glass!!!

[offroadkarter]

Are they using hypereutectic pistons in those??? That's crap!

Yes, they are nothing to brag about... I believe lightnings had these pistons and they are the first thing to go when its time to build a real rotating assembly...

[Joe Walsh]

The hypereutectic pistons are reasonably strong...better than cast pistons, not as strong as forged pistons.
If you are going to hit them with a lot of spray or boost, then they will be the weak link. (read: no detonation allowed)
They are tight/quiet pistons that reduce oil consumption and emissions.

[SC Cheesehead]

Depending on the alloy, the pistons won't necessarily be a weak link.

If Ford has engineered the 5.0 motor for 11:1 compression and 400+ hp they no doubt have designed a stout piston configuration for it.

[Joe Walsh]

Depending on the alloy, the pistons won't necessarily be a weak link.

If Ford has engineered the 5.0 motor for 11:1 compression and 400+ hp they no doubt have designed a stout piston configuration for it.

True...they have to run a durability endurance test on all new engines.
I remember wayyyy back in '84. I wanted to buy a Mustang 5.0 GT.
They were supposed to bring out a higher HP 5.0 for '84 but they had durability issues with the piston skirts.
That delayed the upgraded 5.0 introduction until '85. Ford stuck with the 175 HP 5.0 for '84 and it was my gain!
I couldn't swing the $$$ in '84 and had to wait until '85 to buy my GT.
I ended up getting the first roller cammed-last Holley carburated Mustang 5.0 model....in black of course, with a 5 speed.
Man did that "beotch" run!..14.8s @ 93 was quick in 85.
All with a whopping 215 HP...

[SC Cheesehead]

...I ended up getting the first roller cammed-last Holley carburated Mustang 5.0 model....in black of course, with a 5 speed.
Man did that "beotch" run!..14.8s @ 93 was quick in 85.
All with a whopping 215 HP...

Yup, a different era for sure. Definitely quick for 215 hp.

I recall back in the early 70's when Chebby came out with the 450 hp 454 Chevelle SS, was about the fastest stock car on the road, ran like 13.75 or so around 100 mph through the traps. Of course 70 or 60 series bias belt tires weren't exactly the greatest strip tires.