LS3 vs 5.0 yote? motor only comparison.

[hunter1660]

Ford answered Chevys call with the 5.0 ..which is good for you and me...all 5.0 owners owe it to Chevy for knocking the 4.6 outa fords mustang...I thank Chevy every time I crawl into my ss....and I thank ford every time I crawl into my wife's 2014 5.0 GT...they're both fun cars

[trademaster]

Originally Posted by adamgl

I think the better question is why get a 5.0 Liter that is bigger outside and weighs very similar to a 7.0 liter LS7. More displacement in a lighter package, and more torque.

If the previous poster who cited weight and exterior dimensions was correct, the 5.0 is actually smaller dimensionally.

This thread has gotten to the point of moot arguments. First of all, these are both great engines and second, you can't race engines by themselves. An engine's characteristics need to be well suited to the chassis, gearing and layout of the car.

[302-412]

Originally Posted by hunter1660

Ford answered Chevys call with the 5.0 ..which is good for you and me...all 5.0 owners owe it to Chevy for knocking the 4.6 outa fords mustang...I thank Chevy every time I crawl into my ss....and I thank ford every time I crawl into my wife's 2014 5.0 GT...they're both fun cars

Good point, and as some have said: At least their American! If you think about the choices out there SS, GT, R/T, and their more expensive and more powerful brothers we have some fine choices. Even the 300+ hp entry level models are so much better than we had not too long ago.

[Biscuitpie]

Originally Posted by Cody6.2

I would consider almost half a second and 3-4mph more than a little faster. The 5.0 Mustang is almost a better match up for an LS3 C6 than a LS3 Camaro. My last three cars were a 2007 C6 Z51, 2012 Camaro SS and now a 2014 GT. I can say with 100% certainty that my GT would be a better match for my C6 than Camaro.

The Camaro felt like it has more low end grunt than the GT or Z51 but completely lacks high end pull. In my GT any torque I give up to an LS3 is more than made up for with transmission & rear end gearing. To be quite honest it's the only car I've driven lately that falls right into it's power band with every shift. Well except for sixth as it's quite a step from the 1:1 fifth gear. In the end I've been a GMFanboy for quite some time but I can't say that my LS1, LS2 or LS3 was any better than the 5.0 Liter. It will just come down to Ford guys being Ford guys and GM guys being GM guys.

Half a second? Maybe if you compare the best Mustangs and worst Camaros. There are plenty of people who went from Mustangs to Camaros on this forums who say the opposite as you. Butt dynos shouldn't be brought up here. Also when you say, "In my GT any torque I give up to an LS3 is more than made up for with transmission & rear end gearing", that's kind of what I said...

[adamgl]

Originally Posted by trademaster

If the previous poster who cited weight and exterior dimensions was correct, the 5.0 is actually smaller dimensionally.

This thread has gotten to the point of moot arguments. First of all, these are both great engines and second, you can't race engines by themselves. An engine's characteristics need to be well suited to the chassis, gearing and layout of the car.

I'd like to see an pic of a 5.0 and LS3 side by side like this pic.

I won't argue that they're not bot great engines, but LS3 is better. Print off that dyno graph and ask 100 car guys which engine they would want in any project car. The LS3 is 15 - 25 HP greater from idle all the way to 6250 RPM where they meet. Even when driving hard that's were you are 95% of the time. LS3 has an even greater Torque advantage.

This thread is about motor only comparisons. Not cars weight, (where Camaro's greatest weakness is) or transmissions, or gearing. Say you have 2 identical tube frame cars you're going to drag race. Only difference is motor. Which would win?
DOHC engines do great under boost, where they can make up for lack of displacement. A pushrod engine can get much more displacement out of the same outer dimensions. The extra revs you get out of the 5.0 aren't enough to beat out the huge torque advantage of the 6.2 And when comparing these 2 the pushrod engine is a better starting point.
I do wonder what the 5.8 could do NA if built like the boss motor. That would be way more interesting to me than a 5.0

[302-412]

If I'm building a tube frame drag car it's gonna have a loose converter and get spun a little higher than that graph shows. Guys are going 7500 drag racing Coyotes, with the stock cams, intake, headers.

[Rapid Runner]

I'm going to stir the pot a little and say both motors are obsolete compared to a Flat/Boxer engines

[Cody6.2]

Originally Posted by Biscuitpie

Half a second? Maybe if you compare the best Mustangs and worst Camaros. There are plenty of people who went from Mustangs to Camaros on this forums who say the opposite as you. Butt dynos shouldn't be brought up here. Also when you say, "In my GT any torque I give up to an LS3 is more than made up for with transmission & rear end gearing", that's kind of what I said...

Yep and that's not comparing best to worst as that'd be pointless. I don't know what to say if someone went from Mustang to Camaro and thought it felt faster. Like I said my GT is closer to the performance of my C6 than my Camaro ever was.

[Fenderaddict2]

Am I missing something? Isn't an LS3, 6.2 Litres? And if so, we're comparing it to a 5.0, why?

Shouldn't we compare the Boss version of the 5.0 to the GM equivalent. What's the 350 called? Is there still a 5 litre (or near about) motor offered by GM? Not trolling, I really haven't kept up on current GM offerings.

[joeysrt4]

AT THE END OF THE DAY THERE WILL BE A THREAD"WHAT DO I NEED TO BEAT A 5.0 COYOTE MUSTANG"?LOL BOTH MADE IN AMERICA WHO CARES

[joeysrt4]

AT THE END OF THE DAY THERE WILL BE A THREAD"WHAT DO I NEED TO BEAT A 5.0 COYOTE MUSTANG"?LOL BOTH MADE IN AMERICA WHO CARES

[302-412]

That was a little harsh mate!

[willhe64]

Originally Posted by willhe64

I just googled "coyote dyno chart". Do it yourself and take a look. Every single one of them falls off at 6500, just like the LS. I thought these were 7500 rpm screamers. Not. Making the added size weight and complexity of dohc absolutely no gain to the engine.

Originally Posted by cbass

The coyote falls flat above 6500 rpm because the manifold becomes the restriction.

Originally Posted by 302-412

Guys are going 7500 drag racing Coyotes, with the stock cams, intake, headers.

And making crap horsepower at 7500 just for the sake of doing it. Idiots.

[Cody6.2]

Originally Posted by willhe64

And making crap horsepower at 7500 just for the sake of doing it. Idiots.

And what kind of power would a LS3 make at 7500rpm?