I thought V8's made their power down low...

[American_Muscle]

Hey guys,

I've had my blown(vortech) 01 GT for about a week.

I had a STOCK 91 5.0 before this and it seems like it has more power down low even in stock trim.
Don't get me wrong....the top-end on this '01 is killer...once the SC kicks in, but why is the 4.6l so weak down low?

Is it the extra weight?Fewer cubes?

 

[Black'02]

I think the biggest factor is the difference in engine type. Ohc engines tend to produce more power up top where as pushrod engines have alot more low end power.

 

[mransr]

or just perception...

I don't think there is anywhere in the torque curve where a 225HP '91 makes significantly more power than a stock 260HP '01...much less a supercharged one...it may be that because the 01 just keeps "pulling" more evenly through the whole power band

 

[tjmaxx]

or just perception...

I don't think there is anywhere in the torque curve where a 225HP '91 makes significantly more power than a stock 260HP '01...much less a supercharged one...it may be that because the 01 just keeps "pulling" more evenly through the whole power band

+1

 

[03ghoststang]

or just perception...

I don't think there is anywhere in the torque curve where a 225HP '91 makes significantly more power than a stock 260HP '01...much less a supercharged one...it may be that because the 01 just keeps "pulling" more evenly through the whole power band

thats true and teh 4.6L makes peak TQ around 4K rpmthat around where the old 5.0L was making its HP. Also the mods put in it also move the power band higher or lower in the rpm

 

[stangGT97]

the smaller bore size has a lot to do with the 4.6L having less low end torque than the 302. A 4.6L bored to a 302 will not only have a great low end, but will also be very rev-happy... a killer combination of all the good OHC and OHV characteristics

 

[DropTopPony]

the smaller bore size has a lot to do with the 4.6L having less low end torque than the 302. A 4.6L bored to a 302 will not only have a great low end, but will also be very rev-happy... a killer combination of all the good OHC and OHV characteristics

well said...

i've seen a dyno of a BigBore from MP that gained 20HP and 40TQ....
One of those is definately in my future!

 

[5spd GT]

It is the perception, don't go by the seat of the pants. They make a very similar amount of torque down low as a 5.0L. I have both.

Now, with the 4.6L having a "building up" feeling (especially with your supercharger)...it is going to feel weak down low...

Just perception...

Also, how often do we shift at 3,000rpm

 

[timeless2]

While not totally relevant, I wanted to share this article with you guys on the 5.0 liter cammer.

http://media.ford.com/newsroom/feature_display.cfm?release=16182

 

[DropTopPony]

While not totally relevant, I wanted to share this article with you guys on the 5.0 liter cammer.

http://media.ford.com/newsroom/feature_display.cfm?release=16182

now if you can spot me the $15,000 dollars to get one

 

[timeless2]

now if you can spot me the $15,000 dollars to get one

That is the biggest impediment. The price tag.

 

[stangGT97]

While not totally relevant, I wanted to share this article with you guys on the 5.0 liter cammer.

http://media.ford.com/newsroom/feature_display.cfm?release=16182

does anyone else find comedy in the fact that the author's name is Jennifer Shatwell...?

 

[BurningRubber]

The 5.0 feels tourqier down low, even compared to a PI 4.6... ive driven both and have come to that conclusion.

But, at around 4k my 4.6 really starts to come to life and pulls pretty good, where as the 5.0 is nearing the end of its power band soon at that RPM.

 

[CatmanJJ]

Don't the fact that the 5.0 cars, engines aside, both weigh less and have smaller wheels/tires from the factory also contribute to how it feels much faster down low? I do know my friends lightly modded (exhaust, CAI, 3.73s) '95 GT felt pretty strong off the line but ran outta steam really quick.

 

[04DarkShadowGT]

If you dont think you have enough low end grunt, get some 4.10s

 

[tomustang]

Hey guys,

I've had my blown(vortech) 01 GT for about a week.

I had a STOCK 91 5.0 before this and it seems like it has more power down low even in stock trim.
Don't get me wrong....the top-end on this '01 is killer...once the SC kicks in, but why is the 4.6l so weak down low?

Is it the extra weight?Fewer cubes?

Everyone is forgetting you are running a Centri supercharger, you're not going to make more power down low with one, so you're not going to gain more.

 

[Dan02gt]

The heads, cam, and intake on a stock 5.0 makes great low end torque but starts running out of steam at about 4500 RPMs. If you install a pair of deceint flowing heads and a short runner intake like a Performer RPM you gain a ton of power up top but lose some low end torque. It's a trade off, with a small engine you don't easily get the best of both worlds.

Plus a fox is lighter that a 94+ which also has a lot to do with the way it feels.

 

[02LaserRed2V]

I don't seem to have this issue with mine.

 

[SamMan]

Me either.