Forum Discussion
ShinerBock wrote:
wilber1 wrote:
Like I said, different tools for different applications. Bringing aftermarket and racing stuff into the equation is a mugs game, they won’t meet emission standards and no one will warranty them. Current 1.6L gasoline hybrid F 1 engines can put out 1000 hp but so what.
That is why I said apples to oranges. The Cummins is tuned to keep EGT's in check for towing heavy loads for extended periods of time. If it didn't have to tow heavy loads or meet a different emissions tier then it can be tuned to make a lot more power. Which is why I brought up the aftermarket since they are tuned for power and not towing just like the Audi engine.
If the Audi was tuned to tow heavy loads for extended periods of time then there is no doubt it would not make anywhere near that amount of power since it would have to be detuned to handle it without melting the pistons and turbo.
Apples to oranges.
Agreed. Cwilber1 wrote:
Like I said, different tools for different applications. Bringing aftermarket and racing stuff into the equation is a mugs game, they won’t meet emission standards and no one will warranty them. Current 1.6L gasoline hybrid F 1 engines can put out 1000 hp but so what.
That is why I said apples to oranges. The Cummins is tuned to keep EGT's in check for towing heavy loads for extended periods of time. If it didn't have to tow heavy loads or meet a different emissions tier then it can be tuned to make a lot more power. Which is why I brought up the aftermarket since they are tuned for power and not towing just like the Audi engine.
If the Audi was tuned to tow heavy loads for extended periods of time then there is no doubt it would not make anywhere near that amount of power since it would have to be detuned to handle it without melting the pistons and turbo.
Apples to oranges.ShinerBock wrote:
wilber1 wrote:
To match the Audi's output per litre, your Cummins would have to make 948 lb ft and 1072 HP.
That said, the Audi is designed to go fast, not to tow.
Exactly, apples to oranges. The Audi is an engine with a 3.65 inch stroke made for high revving horsepower while the 6.7L Cummins with a 4.88 inch stroke is made for high low end torque. The turbo efficiency maps are for different applications too.
Although, there have been many on the aftermarket side that have made well over 1,000 hp at the wheels(over 1,100 hp at the crank) with their 6.7L and it is generally followed with around 1,800 lb-ft.
Heck, my truck with just a tune on all stock parts can get up to 515 hp and 1,200 lb-ft at the wheels.
Like I said, different tools for different applications. Bringing aftermarket and racing stuff into the equation is a mugs game, they won’t meet emission standards and no one will warranty them. Current 1.6L gasoline hybrid F 1 power units can put out 1000 hp but so what.wilber1 wrote:
To match the Audi's output per litre, your Cummins would have to make 948 lb ft and 1072 HP.
That said, the Audi is designed to go fast, not to tow.
Exactly, apples to oranges. The Audi is an engine with a 3.65 inch stroke made for high revving horsepower while the 6.7L Cummins with a 4.88 inch stroke is made for high low end torque. The turbo efficiency maps are for different applications too.
Although, there have been many on the aftermarket side that have made well over 1,000 hp at the wheels(over 1,100 hp at the crank) with their 6.7L and it is generally followed with around 1,800 lb-ft.
Heck, my truck with just a tune on all stock parts can get up to 515 hp and 1,200 lb-ft at the wheels.- WOW, and I thought I was OLD and a stick in the mud.
I bet a few of you would try to talk the Wright Brothers out of building an airplane.
50 years little fuel, little clean water, no clean air... no way to mass produce food..
that is OK,, I never had children... so it does not bother me.
I will be DEAD LONG before then.. Ron3rd wrote:
My Tundra had more horsepower than my Cummins but only 1/2 the torque, ie 400 ft lbs compared to 800
Comparing turbocharged to non turbo charged engines is apples and oranges.
How about this one.
5 Cylinder Audi 2.5L turbo DI gas that is in two models that you can buy off the showroom floor with full warranty
Torque 354 lb ft from 1700 to 5850 RPM
HP 400 from 5850 to 7000 RPM
To match the Audi's output per litre, your Cummins would have to make 948 lb ft and 1072 HP.
That said, the Audi is designed to go fast, not to tow.Chuck_thehammer wrote:
first engine with overhead valve 1904 Buick
first engine with overhead camshaft 1956 SCCA race car.
what other major internal engine change in the past 100 years..
Overhead cams go back before WW1. A 1912 Peugeot race car which won the French Grand Prix was the first DOHC engine. Several WW1 aircraft engines used overhead cams.
There have been lots of refinements and changes in basic layouts. 4 valves per cylinder and variable valve timing to name a couple.- Evolve or die? :h
My 50's engine design has evolved just fine. :B BSFC figures are way up and smog is way down.
My 50's engine is dominating every single engine on the track. 90+ of the amateur engines on the track are SBC's.
My late 1950's designed engine is dominating amateur drag racing. The BBC.
On the other hand, do you remember the very evolved Chrysler turbine car? Oops, that didn't work out too well now did it?
And what about the Wankel rotary engine? Remember that evolved engine?
Nope, my engine has evolved just fine as it is. Chuck_thehammer wrote:
Groover wrote:
Chuck_thehammer wrote:
I know this place dislikes links..
http://achatespower.com/our-formula/opposed-piston/
.
https://www.ford-trucks.com/articles/ford-f150-three-cylinders-six-pistons-480-lb-ft-torque/2/
in a Ford F 150... prototype.
250hp, 480 tongue.. gas or diesel...
3 cylinder, 6 piston (opposed) , 2 stroke...
Those are impressive claims but I have seen a lot of impressive claims come and go so I have learned not to get too excited when a new engine comes out every year or two.
I agree.. but this one is a real working engine.. not just on paper.
time is needed ...
internal combustion ... evolve or die.
I am by no means opposed to testing it, just not ready to invest in the company either. I hope that it does work but I don't plan to be the first kid on the block to get one.- first engine with overhead valve 1904 Buick
first engine with overhead camshaft 1956 SCCA race car.
what other major internal engine change in the past 100 years..
