I really don't know why there is even a discussion about stock 7.3 vs stock 6.0...loaded or unloaded. The 6.0 has a lot more area under each curve, more rpm to work with and a superior tranny. I've driven both and there is no way a 7.3 can catch a 6.0

 

I've got both and my 6.0 can't keep up with a Chevette off the line. I'm not speaking from experience looking at the 2 engines on paper, I'm speaking from a couple hundred thousand miles experience driving trucks with both engines in them.

Skip

 

I have to agree Skip but once it hits 2,000 rpm look out it will be passing the 7.3L
My only compliant so far is the lack of power from idle to about 1800. If you spool up first it helps allot but I would like it to come on sooner with out doing anything extra.
I have been told a chip helps but I fear the loss of warranty.
Glen
05 F-350 4x4 Reg Cab PSD 6Spd.

 

I don't know for what reason, but you can spool a 6.0 up to 2500 RPM's, drop the clutch in first gear, and it takes off just like it would if you'd barely tapped the throttle before letting the clutch out.

Of course they say mine is running properly.

Skipper

 

I speak from experience as well...

Turbo lag is turbo lag, once it spools the 6.0 is making 20-30% more power than the 7.3 over 2000 rpm all the way to redline

You may gain a car length off the line but we aren't talking quickest to 100 ft.

The 6.0 out pulls and out accelerates the 7.3 no questions asked.

If you don't agree get a boost and compression check done on the 6.0

 

If you were to use the tow/haul mode would you not be getting higher rpms on the shifts etc on the 6.0? Would this not help. I haven't quite figured out how the tow mode works yet on my '06. I seems to down shift helping slow the vehicle down on hills, and always holds higher rpms when towing.


Cheers,

Dale

 

2 second lag, okay, that's normal. But 14 seconds?!! Are you serious about the 14 seconds, or does it just feel like that. I'm no diesel tech, but 14 seconds means you have a big problem.

 

Actually I can tell you from experience running a 1/4 mile that Tow/Haul will slow it down. It needs to shift quicker to stay in it's power band better. When I ran Tow/Haul I was almost a full second slower in the 1/4 mile.

 

Little old ladies in Toyota Camrys regularly beat my 6.0 off the line by 10 or more truck lengths. I'll have to ask one next time if her Camry is chipped up.

Seriously, My 7.3 would be more than a couple truck lengths ahead off the line.

Skipper

 

OK SKIP YOU HAVE A 6.0 THAT DOESN'T RUN RIGHT. DO YOU HAVE TO TURN EVERY THREAD INTO A 6.0 BASHING?

 

i would think that with the VG turbo on the 6.0 it would spool up faster than a 7.3 and thus get off the line quicker. i can say i have been smoked by a couple modded 6.0s and both of them left me right from the start

 

To quote an old saying, "Sounds like a fool and his money are soon to be parted". You are driving a vehicle that you do not know the idiocincracies very well, and he has a vehicle that is more than likely not stock! A good "street" racer that ponies up that kind of money is well versed in stealth technology. You can look it over and not see the hidden mods if he has done his job right.
Be careful, sounds like a set up to me.

 

That about sums it up.

I have talked to Ford till I'm blue in the face. I hate lawyers, and don't intend to hire one. That said, since it is evident to me that Ford has 0 desire to make my purchase right, I will bash their sorry missengineered piece of junk from now on. That is about the only recourse I have, and trust me, I intend to use it.

That said, you asked a question, and I gave you my answer based on my experience with trucks having both motors. It wouldn't be the blow out you think it would. Yes, the 6.0 has more horsepower once it gets spooled up and running, but we aren't talking about a 500 mile race, we are talking about a 1/4 mile. I do have some drag racing experience, although all of it on 1/8th miles. I know a full quarter is a lot of difference. I also know that if you give up a 10 car lead at the light it's difficult to catch your opponent in a short drag race. The fact is, a 6.0 does not have the torque to get up and go with a 7.3. If you'll read your specifications very carefully, you'll find they measured the 6.0's increase in torque over the 7.3 at something like 2500 rpms. Sitting on the staging lights of a drag strip, the amount of torque your engine has at 2500 rpms has pretty dang little to do with how fast it will leave when the lights go from yellow to green. Back when I ran at the drag strip in Alabama, my car was one of the faster cars in the bracket, and I almost always donated a couple seconds to a slower car or pickup in the bracket. I can tell you from experience how far it takes a much faster vehicle to catch up with one that has a 2 or 3 second head start. Drag racing is all about the light, it is not about the top end speed of the vehicle. All other things being equal, I'd put my money on the one who cuts the tightest light. With the 6.0's notorious lag from the time you spur it's but till the time it takes off, I can tell you, a 7.3 truck will murder it on the light. In an eighth mile, the 6.0 would not have a chance. I said before, I thought it might in a quarter. There is a big difference in the 2 tracks as to what works best. 1/8th mile tracks are not necessarily horsepower tracks. It's reaction time. Quarter miles get into horsepower because you are going to hit high gear. I'm not sure how close to the end of the track that would be, and that would be the determining factor.

Skip

 

skip you need to look at the timeslips and see how fast a 6.0 can do a 60 ft time and 1/8 mile as well as 1/4.

Peak torque is 560-570 at 2000 rpm and it matters how much torque at that rpm cause that is where you launch. Who doesn't powerbrake during a drag race?

 

The loser.