I would make you blow your engine trying to chase me up Vail Pass.

 

Did your 16 year old kid make "assume" your account again? You seem to be awfully confrontational once again...

 

Nope, this is me this time. I'm tired of someone telling me how fast my wheels would be spinning at x rpm, with x torque, at x hp when he doesn't even know what axle I have. He's also assuming many other variables.

Like I said, let's load them up and end this silliness. I make more power, and get better mileage. Diesel wins.

 

I guess you're referring to Josh's last math post. If you read it again, you will see that the only trucks he references with specific details on trans and gear ratios are his own. He specifically says "our V10" and "our 6.4". The math are results from the details of his own trucks.

 

No, you don't make more "power".

3-valve V10 is 362HP. 6.4 is 350.

Of course, that doesn't mean much, as your torque curve is wildly different. But the blanket statement of "more power" is wrong.

 

Ummm, once again, why don't you learn to read before you hit reply. Show me in that post where 1. I was even replying to you and 2. Where I even mentioned your name or your specific truck. If you go back and actually read the post you will see that I was relying to TennesseeMustang and that I was using two trucks with rear ends that would allow them to be turning the same wheel rpm with both engines at peak torque.

As for your race up Vail pass, I don't think there is a v10 guy here who is arguing that a stock v10 will outpull a stock psd at 11,000 feet elevation(if you would have read my reply you would have seen my "disclaimer" that my math applies to everyone but you). But keep in mind, what makes your truck pull as good going up Vail Pass as it does at sea level has nothing to do with it being a diesel. It is because of the turbo. Using your rationale, I could also say that 4 cylinders are better for drag racing then v8's. I have a 190 hp 4 cyl turbo that will outrun a 260 hp 4.6 Mustang going up Vail Pass, but what does that prove other than a turbo is better than no turbo?

Thank you for being able to read . Although in that case I wasn't talking about two trucks I own, just two trucks that would be doing the same speed with both at peak torque. When I reference a 7.3 and 5.4, those are the two trucks that I own. I don't need a calculator or math to tell me that my numbers are right for them. All I have to do hook a trailer to them and drive about 1/4 mile to the hill that is in my test video. The 5.4 tops it at more rpm, in a lower gear, but at a higher speed. Pretty simple to figure out when all I have to do is look at the speedometer.

 

Ok...I can tow more, faster, up Vail Pass, and get better mileage while doing it. I'm also faster if he chooses to come up here and race on some weekend at our local airport. With, or without a trailer.

BTW, that 362hp rating in the V10 is at sea-level, or 500' if it's the typical dyno numbers. If you can prove they released their dyno numbers from the front range foothills, I'll take it back. That said, up here, I make more power, so my previous statement stands until someone can "prove it wrong".

 

Good job at the backpedaling!!

 

You SPECIFICALLY state "The 6.4"...not the 7.3. You say 6.4, 3 or 4 times. Perhaps you need to learn to read your OWN postings.

 

No, I understood it. Just saying that horsepower is not all that is required when racing, and that torque is extrmely critical to pull the vehicle to speed off the line. You are right about the RWHP being the needed number, crankshaft horsepower means nothing if you cannot get it to the wheels. There is typically an 18-20% drivetrain loss, and gears do make a huge difference. The one thing that I would argue is that a higher peak 6000 RPM vehicle will make a faster pass than a 3000 RPM car producing the same horsepower, just at different engine speeds. A vehicle with a low, flat power curve and torque curve would actually run faster, provided they both have all other equal variables. Like I said earlier though, one should buy whatever they need. I got a 6.0L because I wanted a quiet truck, good mileage, I do some car hauler towing, and frankly I got a heck of a deal on it. That does not mean that I have no love for the other Super Dutys, I have resepct for the gassers as well as the 7.3Ls as they all have their proper purpose and all have the blue oval in the grill.

 

Did I ever say YOUR 6.4 or Chargerfan's 6.4? I was referring to the 6.4 that I was using that would be going the same speed as the v10 that I was using. So let me spell it out for you again. In that message that you are quoting I was using a v10 and a 6.4 that I MADE UP so that they would be going the same speed with both at peak power. That means giving them different rear ends(not your specific rear end) and having them be in different gears. You got that so far? I am not talking about YOUR truck. Your engine, yes, but not your truck.

Now let me spell out the 7.3 part. That is referring to the OTHER POSTS where I was comparing MY 7.3 to MY 5.4 that are sitting in MY DRIVEWAY. I never said I was comparing a 7.3 in the message you keep quoting. Not once. Bucci said that I was comparing my own trucks in that message and I was just letting him know that the trucks that I own are a 7.3 and 5.4 and that I was comparing two trucks that I didn't own.

 

I never believed that line of crap-posting type/style are the same, sentence structure the same, overall attitude the same.
JL

 

Nobody is arguing that a V10 is going to loose power at high altitude but at sea level (and close to sea level) an equivalent V10 truck will win - every time. Its lighter and has more horsepower.

Also, see that little button to the right of the quote button, that is called multi-quote. Use it sometime, its generally not reflected on well to post 3-4 times in a row

 

I am not talking about the 15-20% hp loss to the wheels from the engine due to frictional losses. I am talking about the loss of rear wheel torque due to changing gears. If you take a 6.4(not Chargerfan's 6.4) to a dyno and you have your 350 hp and 650 tq number from ford and test it at sea level, you are probably going to end up with a read out of about 280 hp and 520 tq rear wheel numbers. That means nothing and isn't worth the paper the printout is written on. That is giving you a number that is based on engine rpm, not on wheel rpm. When you change gears you still have the same rear wheel hp number, but your rpm's change(not based on engine rpm's) and that drastically affects what your actual rear wheel torque is.

Let's take our hypothetical 6.4(not Chargerfan's 6.4) that has a 3.73 rear end and compare it to a hypothetical 6.4(still not Chargerfan's) that has a 3.55. Both of them are going to give you the 280 hp and 520 rear wheel numbers if you put them on a dyno. Rear wheel torque(not what you get from the dyno, but what actually matters) is as follows. Both at 3,000 rpm and making the same rear wheel hp on the dyno. Both in 3rd gear with a manual and using dyno hp numbers.

3.73 is 280 x 5252/618=2380
3.55 is 280 x 5252/652=2255
Even though the dyno is going to show the same rear wheel hp and tq for both of them, one is going to pull a lot better once you actually put it on the road. When you change to 4th, the dyno will still show a 280/520 hp/tq number, but rear wheel torque is as follows.

3.73 is 280 x 5252/ 804=1829
3.55 is 280 x 5252/ 845=1740

 

I don't give a damn what YOU believe. YOU are the one who just posted something argumentative, and completely off-topic. If you have a kid and he's not smart enough to come up with complete sentences, bring it up with your local school board instead of a public board trying to incite something. When I'm discussing things, I'll tell you I'm discussing things. I'm not going to blame it on my kid. Now I see what would have set him off in the first place since you and a couple of others act like this thread is your personal playground.

My main beef is that you, phillips, and one or two others like to gang up and expect people to bow down to you. I haven't seen many relevant posts to the PSD/V10 discussion from you at all. Most of them are directed at me on a personal level ; at least since I've been posting on this thread. Phillips likes to post crap, and then deny he even posted it. then, the only defense your little group can come up with is "use multiquote" something or other because you don't like it? Gimme' a break.

It irks me to no end when people say something, then backpedal or say they didn't say it at all. But, if the mods are good with it, so be it. I'm done with this thread, and you guys can discuss the V10/PSD to your hearts content. I see why the mods keep it on one thread.

Deal with it.