Does anyone think this could be possible...

[Striker2237]

Originally Posted by oldtamiyaphile

An average car cruises on about 7hp at moderate speeds. I could see a truck needing maybe 50hp max at cruise.

To work this out you need your hp for given speed/rpm X load. If your truck cruises at 30% load then that's about 50hp based on your figures.

I have no idea what it is now, if I'm on the gas more than a hair (out of OD naturally) its busy accelerating to around 80mph while staying under 2500......I'm just trying to figure out based on the engine in its old stock form needed to produce to move and maintain the truck at a reasonable speed

[Striker2237]

Originally Posted by freebeard

iowahawk: The Real Acme

This sounds like exactly what you are looking for.

Dear lord........I must make me one of these......for reasons.......(thoughts of having an "I win" button overwhelm all logical thought)

[oil pan 4]

Swapping gears, not cheap is going to be about the least expensive option to see any real improvement.

[freebeard]

Historic rocket powered by rubber fuel - Technology & science - Space - Space.com | NBC News

The fuel,N-propyl nitrate, may be hard to come by. Spaceship One burns a combination of [an ingredient of] rubber and nitrous oxide. Burning rubber and NOS would make it fast and furious.

[Striker2237]

Originally Posted by oil pan 4

Swapping gears, not cheap is going to be about the least expensive option to see any real improvement.

I already have some tall gears, 3.55s because ironically these high gears work better with a stroker for getting power to the ground anyway and I can't go much lower.....the only thing lower would be 3.21 gears

[aerohead]

Originally Posted by Striker2237

well what i meant is that hemi would take the place of my engine, and 345hp is not anywhere close to 620

At what time or condition would you utilize 620-bhp?
My T-100,naked,only required 47-horsepower to maintain 70-mph.

[Striker2237]

Originally Posted by aerohead

At what time or condition would you utilize 620-bhp?
My T-100,naked,only required 47-horsepower to maintain 70-mph.

Drag strip............

[aerohead]

Originally Posted by Striker2237

Drag strip............

If you're doing 1/8 or 1/4-mile,your power to weight ratio will be the greatest factor in getting ETs down.Or maintaining what you've already got.
Mass is the poison of acceleration.
If you add a second powerplant/powertrain,that additional weight will really cut into your time and exit velocity.
With no aluminum,or lightweight composite body available,it will be hard to cut weight in order to add weight ,while maintaining a constant weight.

[Striker2237]

Originally Posted by aerohead

If you're doing 1/8 or 1/4-mile,your power to weight ratio will be the greatest factor in getting ETs down.Or maintaining what you've already got.
Mass is the poison of acceleration.
If you add a second powerplant/powertrain,that additional weight will really cut into your time and exit velocity.
With no aluminum,or lightweight composite body available,it will be hard to cut weight in order to add weight ,while maintaining a constant weight.

Oh 2nd engine wouldn't be for speed lol! I would make it dis-connectable so It wont get in the way of the 408

[markweatherill]

A V8 that can do cylinder deactivation would be a better bet. Not as good mpg as a four-cylinder - but arguably better in lots of ways than having a separate four-cylinder in the vehicle.