Re: New at this, trying to understand horse power
 

You got something better than this six thousand horsepower fifties
push rod Hemi: http://www.goarmy.com/racing/nhra_top_fuel_dragster.jsp ?
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Wblane wrote:
>
> Bill R U seriously trying to say that there are no modern OHC engines that can
> match the horsepower/torque of a 50's cast-iron V8? Have you ever heard of
> Ferrari? What about Lambourghini? I'll bet an Acura NSX can easily match any
> 50's cast-iron V8 w/pushrods. Pushrods are "prehistoric" because all that mass
> contributes to valve float at high RPM's. Large diameter pistons (i.e. in large
> displacement engines) also contribute to inefficient combustion. F1 doesn't use
> pushrods -- either in motorcycles or cars.

Re: New at this, trying to understand horse power
 

You got something better than this six thousand horsepower fifties
push rod Hemi: http://www.goarmy.com/racing/nhra_top_fuel_dragster.jsp ?
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Wblane wrote:
>
> Bill R U seriously trying to say that there are no modern OHC engines that can
> match the horsepower/torque of a 50's cast-iron V8? Have you ever heard of
> Ferrari? What about Lambourghini? I'll bet an Acura NSX can easily match any
> 50's cast-iron V8 w/pushrods. Pushrods are "prehistoric" because all that mass
> contributes to valve float at high RPM's. Large diameter pistons (i.e. in large
> displacement engines) also contribute to inefficient combustion. F1 doesn't use
> pushrods -- either in motorcycles or cars.

Re: New at this, trying to understand horse power
 

Pretty good fuel consuption also, only 56 gallons per mile. You could design
any type of engine to get better performance by making it burn higher
combustion fuel at a fast rate. But vehicles that will be driven on roads need
a balance between fuel consumption and power.

Today's OHC engines are generally designed as smaller engines for use in
smaller cars. The produce a nice amount of power and are fuel efficient. They
are generally more expensive to design than a pushrod engine.

Today's high torque larger trucks, SUVs, and sports cars use larger engines
that are OHV pushrods. These have gotten much better at fuel consumption than
they used to be. These are cheaper to build, since the designs haven't changed
much.

Over the next 20 years, even large cars, trucks, and SUV will probably start
switching over to using mostly OHC engines. Manufacturers haven't put the
capital into designing large OHC engines until recently.





> You got something better than this six thousand horsepower fifties
>push rod Hemi: http://www.goarmy.com/racing/nhra_top_fuel_dragster.jsp ?

Re: New at this, trying to understand horse power
 

Pretty good fuel consuption also, only 56 gallons per mile. You could design
any type of engine to get better performance by making it burn higher
combustion fuel at a fast rate. But vehicles that will be driven on roads need
a balance between fuel consumption and power.

Today's OHC engines are generally designed as smaller engines for use in
smaller cars. The produce a nice amount of power and are fuel efficient. They
are generally more expensive to design than a pushrod engine.

Today's high torque larger trucks, SUVs, and sports cars use larger engines
that are OHV pushrods. These have gotten much better at fuel consumption than
they used to be. These are cheaper to build, since the designs haven't changed
much.

Over the next 20 years, even large cars, trucks, and SUV will probably start
switching over to using mostly OHC engines. Manufacturers haven't put the
capital into designing large OHC engines until recently.





> You got something better than this six thousand horsepower fifties
>push rod Hemi: http://www.goarmy.com/racing/nhra_top_fuel_dragster.jsp ?

Re: New at this, trying to understand horse power
 

Pretty good fuel consuption also, only 56 gallons per mile. You could design
any type of engine to get better performance by making it burn higher
combustion fuel at a fast rate. But vehicles that will be driven on roads need
a balance between fuel consumption and power.

Today's OHC engines are generally designed as smaller engines for use in
smaller cars. The produce a nice amount of power and are fuel efficient. They
are generally more expensive to design than a pushrod engine.

Today's high torque larger trucks, SUVs, and sports cars use larger engines
that are OHV pushrods. These have gotten much better at fuel consumption than
they used to be. These are cheaper to build, since the designs haven't changed
much.

Over the next 20 years, even large cars, trucks, and SUV will probably start
switching over to using mostly OHC engines. Manufacturers haven't put the
capital into designing large OHC engines until recently.





> You got something better than this six thousand horsepower fifties
>push rod Hemi: http://www.goarmy.com/racing/nhra_top_fuel_dragster.jsp ?

Re: New at this, trying to understand horse power
 

You're ignorant when it come to American engines. Ford made
overhead cam engines in the twenties for some of their tractors. Mustang
used an overhead cam in their 429" for their '69 Boss:
http://www.geocities.com/infieldg/v8sohc427.html We been there, done
that! If you want to go fast get a push rod engine, if you just want
another puny rice burner, buy an OHC.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Mark12211 wrote:
>
> Pretty good fuel consuption also, only 56 gallons per mile. You could design
> any type of engine to get better performance by making it burn higher
> combustion fuel at a fast rate. But vehicles that will be driven on roads need
> a balance between fuel consumption and power.
>
> Today's OHC engines are generally designed as smaller engines for use in
> smaller cars. The produce a nice amount of power and are fuel efficient. They
> are generally more expensive to design than a pushrod engine.
>
> Today's high torque larger trucks, SUVs, and sports cars use larger engines
> that are OHV pushrods. These have gotten much better at fuel consumption than
> they used to be. These are cheaper to build, since the designs haven't changed
> much.
>
> Over the next 20 years, even large cars, trucks, and SUV will probably start
> switching over to using mostly OHC engines. Manufacturers haven't put the
> capital into designing large OHC engines until recently.

Re: New at this, trying to understand horse power
 

You're ignorant when it come to American engines. Ford made
overhead cam engines in the twenties for some of their tractors. Mustang
used an overhead cam in their 429" for their '69 Boss:
http://www.geocities.com/infieldg/v8sohc427.html We been there, done
that! If you want to go fast get a push rod engine, if you just want
another puny rice burner, buy an OHC.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Mark12211 wrote:
>
> Pretty good fuel consuption also, only 56 gallons per mile. You could design
> any type of engine to get better performance by making it burn higher
> combustion fuel at a fast rate. But vehicles that will be driven on roads need
> a balance between fuel consumption and power.
>
> Today's OHC engines are generally designed as smaller engines for use in
> smaller cars. The produce a nice amount of power and are fuel efficient. They
> are generally more expensive to design than a pushrod engine.
>
> Today's high torque larger trucks, SUVs, and sports cars use larger engines
> that are OHV pushrods. These have gotten much better at fuel consumption than
> they used to be. These are cheaper to build, since the designs haven't changed
> much.
>
> Over the next 20 years, even large cars, trucks, and SUV will probably start
> switching over to using mostly OHC engines. Manufacturers haven't put the
> capital into designing large OHC engines until recently.

Re: New at this, trying to understand horse power
 

You're ignorant when it come to American engines. Ford made
overhead cam engines in the twenties for some of their tractors. Mustang
used an overhead cam in their 429" for their '69 Boss:
http://www.geocities.com/infieldg/v8sohc427.html We been there, done
that! If you want to go fast get a push rod engine, if you just want
another puny rice burner, buy an OHC.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Mark12211 wrote:
>
> Pretty good fuel consuption also, only 56 gallons per mile. You could design
> any type of engine to get better performance by making it burn higher
> combustion fuel at a fast rate. But vehicles that will be driven on roads need
> a balance between fuel consumption and power.
>
> Today's OHC engines are generally designed as smaller engines for use in
> smaller cars. The produce a nice amount of power and are fuel efficient. They
> are generally more expensive to design than a pushrod engine.
>
> Today's high torque larger trucks, SUVs, and sports cars use larger engines
> that are OHV pushrods. These have gotten much better at fuel consumption than
> they used to be. These are cheaper to build, since the designs haven't changed
> much.
>
> Over the next 20 years, even large cars, trucks, and SUV will probably start
> switching over to using mostly OHC engines. Manufacturers haven't put the
> capital into designing large OHC engines until recently.

Re: New at this, trying to understand horse power
 

There is also the argument that pushrod engines are easier to maintain and
repair out in the sticks.

Dave Milne, Scotland
'91 Grand Wagoneer, '99 TJ

"Mark12211" <mark12211@aol.com> wrote in message
news:20050113110349.19502.00000065@mb-m06.aol.com...
> Over the next 20 years, even large cars, trucks, and SUV will probably
start
> switching over to using mostly OHC engines. Manufacturers haven't put the
> capital into designing large OHC engines until recently.

Re: New at this, trying to understand horse power
 

There is also the argument that pushrod engines are easier to maintain and
repair out in the sticks.

Dave Milne, Scotland
'91 Grand Wagoneer, '99 TJ

"Mark12211" <mark12211@aol.com> wrote in message
news:20050113110349.19502.00000065@mb-m06.aol.com...
> Over the next 20 years, even large cars, trucks, and SUV will probably
start
> switching over to using mostly OHC engines. Manufacturers haven't put the
> capital into designing large OHC engines until recently.