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They're testing. There's a reason for that. Give 'em time.

Thanks for the info, Donson. I also think the engine will put out significantly > 500 HP -- if the 8250 redline is legit -- even w/ emissions constraints. My speculation is 540 or more. I think 450 ft-lbf is a bit optimistic, though. We'll see... Again, my main concern is reliability: how...

Thanks for the information, Backorder. Much appreciated. Would really like to hear how the 5.2 is/was stress tested. How many hours at 8000 rpm, say, before it cobs?

Sounds very plausible. Thanks for asking around.

Tim, do you swear much when dropping trannies? Yeah, me neither. :) I actually did not do the clutch job on the truck due to work demands. Was keen to see the DMF, but no way around it. Most of my experience in this area is w/ my 82 Merc -- always fooling around w/ the clutch. I think I...

Jim, I don't know -- could "we"? :) Do you know how many "we"'s I've been part of? :) Anyway, in all seriousness, I suppose "one" could, yes. I wrote a little code to compute some metrics given stroke, rod, bore, rpm, etc. I have been thinking about adding this secondary imbalance stuff...

Interesting about the V6, Track. From what I've read, a DMF was put behind the diesels to eliminate the transmission of the so-called 'diesel spike' to the trans. I now have a regular flywheel; for the first month or so w/ the regular flywheel, there was a lot of very bad sounding rattle and...

Here's what concerns me. In JarStang's interview, it was stated that a dual mass flywheel is used. I imagine (but could be wrong, will welcome additional understanding anyone can provide) that the "DMF" is employed to act as a large torsional damper for the crank. I believe the secondary...

Thank you folks. Much appreciated, Jim, thanks. I was quite skeptical how the washing machine abstraction would play out! Here are a couple specifics (as I calculate them) for the 5.2 w/ a flat crank. If you want to run some numbers yourself, take a look at: "The Internal Combustion Engine...

I'm quite ambivalent about making this post. One the one hand, I'd like to expand/correct a general idea promulgated several posts up. On the other hand, correcting is generally very bad form in venues such as this. Based on the poster's other posts, which are generally spot on (in my...

Hats off to Ford; terrific job. I was skeptical of a flat crank making it into production (even though Tear the Horizon said it was a sure thing). I find the 8200 redline borderline unbelievable and wonder about the details of the warranty. For comparison: Average piston speed (in...

FPC: It'll be interesting (for me) to hear the engineering reasons behind going w/ a flat crank, if they ultimately do. Of course, perhaps we'll never hear the reasons either. I can easily believe 500 - 525 hp; based on some simple relations and guesstimates for VE, BSFC, etc. I can see 540...

I have to admit that I'm skeptical of a flat crank being offered in the car. In my opinion (and we know what opinions are worth) the drawbacks outweigh the advantages, unless we're perhaps talking all out race car. With a 180 deg crank, you've got all the vibration problems arising from a...

Keep in mind also that 418 PS is about 412 hp. PS is not equal to hp; close, but not equal. Since 412 is the hp from a few years ago, I have to wonder if Free Agent's third point hit the mark. Who knows...

Second vid is very interesting; thanks jarstang. Pill: looking forward to whatever you can pass along.

figjam: had to look this one up too. Smiled broadly when I found it.

Ah. Misunderstood your statement which, as I read it, concerned changing stroke only. Yes, assuming the rod length is also shortened to maintain a desired rod/stroke ratio, the deck height will be reduced as much you say, and probably more since 1.5 is a pretty short rod/stroke ratio.

I think you had a senior moment, Norm. :) Deck height can be reduced by half of any stroke reduction, keeping other variables constant. So overall width would be reduced by ~1.4 * stroke reduction/2 and overall height by ~0.7 * stroke reduction/2. So, for example, a 10 mm shorter stroke...

Interesting. Thanks.

Pill, "Does a Voodoo seem worth the money?" I can't say -- how much extra will the Voodoo cost? And how much extra power/torque will the additional cost produce? It all depends on where in the spectrum of designs Ford thinks is the most cost-effective, I'd think. But I have no idea where...