When it comes down to it, both motors have their strengths. The LS motors are great at making power with a compact overall size with low internal rotating mass. It is tried and true reliability with a great aftermarket support. The Coyote is the new kid on the block, it makes great power, and from what has been done thus far it looks like there is a ton of power left to be taken out. The size of the motor itself is a little disproportionate to what it actually displaces, but that is one of the drawbacks of a DOHC design. However, it is fairly cheap to get into, and the aftermarket is really building.
The ULTIMATE Coyote vs. LS3 thread.
- Thread starter C.Evans
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As Prim had already brought up, it's still a modular motor, which have proven to be nearly unstoppable in police/taxi applications since the early 90's, while the LS series really emerged in the late 90's (but of course you can say it started from the LT design etc etc).
I'm a ford swinger, but I bet they've gotten more than that out of boosted 4.8 LS motors with the right fuel/tuning. I know they have out of 5.3's.
There was an article on here about a 4.8 getting 1200+ with boost and another OEM LS cam and springs.
I bet they are pretty reliable too.
Only 12-13 lbs of boost on the 5.0 isn't going to push head gaskets, or have rods hanging out of the block unlike that 1200hp 4.8 would.
I bet they are pretty reliable too.
Only 12-13 lbs of boost on the 5.0 isn't going to push head gaskets, or have rods hanging out of the block unlike that 1200hp 4.8 would.
They got 600+hp out of 7PSI with twin turbos, 900+hp @15PSI they got 1200+ with 26PSI. They used stock rods, and tore it down afterwards. They thought it probably could have survived a whole season if not more.
http://www.performancetrucks.net/fo...in-76mm-turbo-4-8l-1200hp-still-going-485734/
I'd still have bought my mustang if it had an LS motor under the hood. GM's only sporty coupe that I considered when shopping was the GTO, and it has too many reliability concerns with everything except for the engine...
The whole article is nuts, granted the guys that did this were using race gas and were very VERY familiar with the power plant.
the Modular 4.6's of the past 2 decades just aren't as strong internally and like to give up the ghost at 450hp or so. The Forged ones (ala Terminator) have shown to be able to put out 1000+ on stock blocks as well though. 6 of one, half dozen of another I guess.
You just can't pull any 4.8 out of a boneyard and expect it to last like that one is. They got a good one.
They got the motor thinking it was a 5.3
, but again, all honesty, the fueling and tuning are really what kept that thing alive more than anything past the 600 mark I'd bet.
They got the motor thinking it was a 5.3
Yeah I remember that they were shocked when they read the casting numbers. Still cool though.
I'm sure once they become as disposable as the 4.6's we will find out.
Hopefully that's soon!
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