torque

330CubeGt · May 23rd, 2009, 11:41 PM

Originally Posted by mustangracer2g

dude the knowledge that some of you guys drop on threads like this one make me proud to be a member of this forum

i do have one question, what does it mean to be "square" in terms of the 4.6 and 5.4?

Rule of thumb Square Motors Last Longer and are harder to blow up.
A 5.4 is not a square motor but the 4.6 is.

What makes it a "Square" Motor is that the Bore&Stroke are almost identical.

For Example the 5.4 is (3.55x4.16)Vs 4.6 a (3.55x3.54)

mustangracer2g · May 23rd, 2009, 11:49 PM

ahhh i see now, dang yeah that makes sense now, good stuff to know, thanks guys!

the misfit wolfie · May 24th, 2009, 12:14 AM

Originally Posted by zigbigadoru

well the reason it bothers me so is because i was doing a 5.4 swap and thought i would be getting gobs of torque. ie almost over 100 ft/lbs of tq but now i find out im only getting like 50 tq....well whats the point in that?

i think the 5.4 has more tq at lower rpms. i think thats the main advantage.

zigbigadoru · May 25th, 2009, 09:52 PM

on the subject of torque, how much torque approximately does it take to lift the front end off the ground?

4.6LMadness · May 25th, 2009, 09:57 PM

Originally Posted by zigbigadoru

on the subject of torque, how much torque approximately does it take to lift the front end off the ground?

Don't think about how much you need but rather what needs to be done to get it to the wheels with out breaking loose. You can have all the Tq in the world and it won't mean anything with out the right supporting suspension mods.

zigbigadoru · May 26th, 2009, 12:36 PM

well then perhaps someone can tell me some steps that could lead me to lifting off the ground and having my nose in the air. cuz that is effing badass. anywhere around 2-4ft would be good

4.6LMadness · May 26th, 2009, 01:06 PM

Originally Posted by zigbigadoru

well then perhaps someone can tell me some steps that could lead me to lifting off the ground and having my nose in the air. cuz that is effing badass. anywhere around 2-4ft would be good

Ask around in the drag section would be my suggestion. I'm sure those guys that spend alot of time at the track would know a good setup and the approximate amount of Tq to accomplish what you want

acidtonic · May 26th, 2009, 03:54 PM

5.4 is pretty much a stroked 4.6 with a taller deck height.

What that means is when you stroke a 4.6 some of the piston comes out of the skirt which some say is less reliable and harder on parts.

The 5.4 has longer skirts which means that longer stroke has more of the piston inside the skirt which some say makes it more reliable and easier on parts at that stroke.

These are rough generalizations because I could start a whole war on that subject. Basically I could stroke my 4.6 and have almost the same torque as a 5.4. The 5.4 is just a taller engine pretty much. 2v 5.4 might blow away what a 2v 4.6 could do, but a built 4v 4.6 would be right on its ass until you get way into boost where the cubes matter more.

Another thing to consider is that the 5.4 is Iron, and not many people can afford the aluminum 5.4 so the power may be a bit better but weight also matters and the iron 5.4 is heavier than the aluminum 4.6.

I would agree that the 4.6 would be more behind when you build a 4v 5.4 which is a lot harder due to clearance and intake selection however.

Either way you will love the 5.4 coming from your npi 2v 4.6 I know that for sure. When I drove your car I had a hard time spinning the tires in the rain. Your 5.4 wont be nearly as forgiving.

330CubeGt · May 26th, 2009, 07:20 PM

Originally Posted by zigbigadoru

well then perhaps someone can tell me some steps that could lead me to lifting off the ground and having my nose in the air. cuz that is effing badass. anywhere around 2-4ft would be good

This Much...

YouTube - Contest for best wheelie won by AMC Gremlin

mlessor96GT · May 26th, 2009, 10:57 PM

ive seen that vid before...crazy

May 23rd, 2009, 11:49 PM	#22
mustangracer2g Regular 1997 Mustang GT not as slow... PI swapped :-) Join Date: May 2008 Location: San Diego, Ca Posts: 275 iTrader: 0 reviews	ahhh i see now, dang yeah that makes sense now, good stuff to know, thanks guys! __________________ If there's one thing in life you should never take for granted its the ability to drive fast when given the hp to. (PI engine swapped now, so i can go just a lil bit faster haha) oh yeah, and why the hell do imports always try to race me?!

May 26th, 2009, 03:54 PM	#28
acidtonic Hardcore Enthusiast 97 Cobra Join Date: May 2008 Location: Royal Oak Michigan Posts: 1,059 iTrader: 0 reviews	5.4 is pretty much a stroked 4.6 with a taller deck height. What that means is when you stroke a 4.6 some of the piston comes out of the skirt which some say is less reliable and harder on parts. The 5.4 has longer skirts which means that longer stroke has more of the piston inside the skirt which some say makes it more reliable and easier on parts at that stroke. These are rough generalizations because I could start a whole war on that subject. Basically I could stroke my 4.6 and have almost the same torque as a 5.4. The 5.4 is just a taller engine pretty much. 2v 5.4 might blow away what a 2v 4.6 could do, but a built 4v 4.6 would be right on its ass until you get way into boost where the cubes matter more. Another thing to consider is that the 5.4 is Iron, and not many people can afford the aluminum 5.4 so the power may be a bit better but weight also matters and the iron 5.4 is heavier than the aluminum 4.6. I would agree that the 4.6 would be more behind when you build a 4v 5.4 which is a lot harder due to clearance and intake selection however. Either way you will love the 5.4 coming from your npi 2v 4.6 I know that for sure. When I drove your car I had a hard time spinning the tires in the rain. Your 5.4 wont be nearly as forgiving. __________________ Converted to the Dark Side. 06 Apex Silver Evolution IX GSR - Turboback Exhaust, Tune - Wideband O2, Trustz backlight gauges, Apexi turbo timer - Stock wing, but soon to be wingless. - Guessing 280-310 at the wheels. 02 Red Escape V6 4x4

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May 26th, 2009, 10:57 PM	#30
mlessor96GT Newbie 1996 Mustang GT Join Date: May 2009 Location: East Hampton, CT Posts: 45 iTrader: 0 reviews	ive seen that vid before...crazy

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