Twin Turbo LS 410 ci on E85
Posted on 03/05/2024 5:05:53 PM PST by matt04
Yep, my later adolescent and early teen years — and even somewhat until now — were spent with peaky two stroke dirt bike and kart motors. Until the reed valve and rotary valve came along they were quite the handful. But two strokes can also be tuned for low rpm torque and driveability to rival any four stroke — the 300cc Enduro bikes are like that.
I actually have a small (1.6l) turbocharged British-built four cylinder in a hot hatch. It’s redline is only 5,500 RPM — and I guarantee its torque peak is before that!
“They also sound better. IMHO, a V-12 is the best sounding engine design, with an I-6 as next best.”
My Vanden V12 was a purring machine I had custom pipes put on it so it was also throaty. The I6 is just half a V12 stood upright this is literally true if the connecting rod design of that engine is fork and blade. You have two I6 connected at an angle by the forks and blades. German WWII fighter engines sound amazing inverted V12s at high rpm hearing one run in at an airshow is a real experience.
There’s nothing wrong with a straight 6 per se (from what I’ve read, Toyota’s 4&6 cylinder engines are perfected examples of the original Chevy stovebolt 6 of the 1930s/40s). And the Chrysler flathead 6s were made into the 1970s for industrial and agricultural applications (as the design was indestructible).
I just find it funny that the company that’s been famous for the V8 Hemi since the 1950s is putting a 6 cylinder engine in a car that’s marketed as a sports/muscle car.
“I likewise miss my ‘69 GTO, with the 350hp 400. There is no substitute for cubic inches.”
350 hp? My 5.0 is 750.
” IMHO Ford was set to take over and dominate cars but mustang went ev and they went all in on that crap. “
Ford Mustang is still all-in with V-8s.
“Why not just stick with the 1,050HP models? Why downgrade?”
The 170 is a special limited edition.
Twin Turbo LS 410 ci on E85
“The high horsepower and high torque numbers quoted are typically not reached on most until the RPMs are up around 6000 rpms regardless of the turbo configuration.”
Ford 2.3 Ecoboost max torque is 350 @ 2750 rpm.
“but they sound “lumpy” to my ear.”
Not all V-8s.
Cross plane cranks. Mustang GT 5.0
That is because the firing order has sequential pulses on a side.
Flat plane cranks alternate sides with each firing. Mustang GT-350 5.2.
“I just find it funny that the company that’s been famous for the V8 Hemi since the 1950s is putting a 6 cylinder engine in a car that’s marketed as a sports/muscle car.”
They were getting 485 hp from 6.4 liters while Ford is getting 500 from 5.0 liters.
I freely admit to being suspicious of any product with “eco” somewhere in the name. Call me “old school” but I still feel a lot more comfortable with a big old hunk of Detroit cast iron out front.
Even the “little” supercharged 3.8L V6 in the Buick that we enjoyed was basically a Chevrolet 350 with two cylinders left behind. It had both a cast iron head and a cast iron block. The only weak spot was the intake manifold, which I had to replace the gaskets on a couple of times.
Look, you know I was exaggerating a teensy bit! But these crazy kids whizzing by us on the freeway have cars that sound like they are ready to self-destruct.
“Call me “old school” but I still feel a lot more comfortable with a big old hunk of Detroit cast iron out front.”
I feel very comfortable with my 5.0 hunk of aluminum!
And my Ecoboost 1.6 peak torque is at just over 4,000 rpm
202 ft-lb.
And boosted significantly from that with 20% ethanol on occasion. That’s about the safe percentage limit for a stock engine with the increased boost and (I think) timing it permits.
What kind of car ran away?
That’s not a YouTube link
I feel very comfortable behind 278 pounds of old school aluminum as well. It has just a little more displacement than yours and just 4 cylinders. It is the Lycoming O-320 engine in our airplane. They are extremely dependable, but because of lawyers and people who sue any time someone makes an idiotic mistake in an airplane... the parts cost a small fortune.
The first version was released in 1953. The number of changes since then have been few. It is beautiful in its simplicity and is able to hum along at 75% power all day without complaining.
You need to put a blower on that thing.
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