Both stock 2 valves with the same options, both extended cab 4x4 shortbox with 3.55 rear ends . Which is quicker.

 

The 5.4.

 

X2 - it's all about the torque ....

 

Torque *and* HP - the 5.4 has a lot more of both, today's automatics are almost as efficient as manuals, and they shift quicker than anyone can with a stick without totally abusing it.

 

He asked which was quicker, not faster - ergo--> torque

Efficiency-wise - I dunno - the autos (4R70/75/100's) are around 25-30%, whereas the manuals are around 15% driveline loss...

 

thats what i mean. There is less drivetrain loss and another gear to keep it revving in his powerband

 

Well, from a dig - I'd say the 5.4 would leave a lot better. As you get nearer the top, then the 'Faster 150' effect comes into play, and that poor big block 5.4 stroker is toast !



Really though - power-to-weight advantage is still in the 5.4's favour for both tq & hp, albeit not by very much. But as GLC said, that auto will out-shift anyone but a real stick-wizard....

 

but with the 5spd you could launch that thing alot better out of the whole.

Power to wieght isn't really the answer at all because an old 5 litre mustang with an auto is a full second and half slower in the 1/4mile than the 5spd version, when both have the same power and weight

The reason I posted this is because I was racing the same truck as mine but he had a 4.6 5 spd and I am 5.4 auto. I don't know if he was stock or not. I put a length and a half on him through first. I have my intake, magnaflow 15749, efans and troyer tunes but I also have heavy *** 32" bfg All terrains.

 

An "old" 5 liter Mustang had an older automatic, and they were tuned totally differently from the 5 speed versions.

Torque converters more than make up for the extra gear.

 

Just one question.

If you raced the other truck already and know the outcome, why are you asking? Don't you know the answer already?

 

but

and I wanted to know if



I was talking about newer fox like a 93.

There is no way a tourque converter makes up for an extra gear

If you look at an 03 Mach 1 the auto is 7 tenths slower in the 1/4 mile than the auto. The old super coupe is 9 tenths slower in the 1/4 mile with the auto.

 

Ah, I see.

I would put my money on the 5.4L

 

I have also seen "identical" vehicles where the auto is quicker. A stick is very dependent on the driver's skill, an auto takes pretty good care of itself.

 

100% correct.

For every test you can find where the stick is quicker, I can find at least one where the corollary is true.

Besides, I now know not to argue with GLC's implacable logic

 

What kind of cars were they. was this at the track on the same day? Also the guy with the stick how much track experience did they have?