Jump to content
SAU Community

Good Long Distance Car

adamskill
 Share

Recommended Posts

  • Replies 71
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

adamskill Mentor

adamskill

Posted
  • Author
Posted

Since there is no mention of a budget than I suggest a mercadec S class

Considering I'm looking at ba & bf falcons, an s class is far from a realistic mile muncher....

Link to comment
Share on other sites
warps Mentor

warps

Posted
Posted

Since there is no mention of a budget, I suggest a new BMW M5. These will comfortably eat your 500km each way, and you'll always arrive in comfort and style. Great for the family too.

For economy, the Audi A8 TDi V8 gets 7.6 l/100km, and will accelerate 0-100 in 5.5 sec. These would also be a great long distance cruiser. They are, afterall built for the autobahns.

However, if you're not an Audi or BMW fan, then you'll just have to settle for the Merc S63 AMG. A bit thirsty, but will accelerate to 100 in less than 5 sec, so safe for overtaking those road trains out west.

Hope this info has helped you, Adam.

Link to comment
Share on other sites
FrangaR33 Mentor

FrangaR33

Posted
Posted

Since there's no mention of budget, how about:

learjet45_2.jpg

Complete a 5 hour drive in about 30 minutes.

LOL would probably be cheaper to built the airport he would need at the other end than the price of that plane.

Link to comment
Share on other sites
Cowboy1600 Grand Master

Cowboy1600

Posted
Posted

can someone explain why a large car is more fuel efficient on highways/long distance trips?

They aren't necessarily more efficient, but there's far less difference between a big and small engine when a big engine is just loping along at a constant speed well within it's ability. The torque helps, too. More go at lower RPM means lower overall gearing and lower revs as cruise speed which equates to lower fuel usage.

Link to comment
Share on other sites
mad082 Grand Master

mad082

Posted
Posted

yeah it's a mix of more torque, taller gearing, inertia and general physics. most large cars are generally detuned quite as they are designed to be good at highway cruising (hence why plenty of falcadores will get better economy on the highway than a more highly strung natro skyline). and the fact that the amount of extra power required to hold an extra few hundred kgs at 100kmh isn't that much. so not much extra fuel is required.

Link to comment
Share on other sites
mad082 Grand Master

mad082

Posted
Posted

the best economy i've gotten out of the missus SSS was 6.5L/100kms, but after driving it to work the other day, it reminded me just how much more comfy the seats are in the commodore. and the general driving position for that matter. not as nice/fun to drive, but much more comfy

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Lithium
      Boost level and torque curve

      By Lithium · Posted

      There is a LOT of stuff that can be done, it all depends on how much time and money you want to spend on doing in.  Not all ECUs will be able to do it, and the more control you need the more time and knowledge needs to be put into making it work.  If you're willing to spend the time and money and have the right hardware and skills involved there's a lot that can be done. 
    • thx78
      Boost level and torque curve

      By thx78 · Posted

      I am impressed with all this level of adjustment. I didn't expect all this possibility
    • Lithium
      Boost level and torque curve

      By Lithium · Posted

      Correct.  In the case of the 500kw dyno plot I showed you the car actually runs two boost control solenoids for boost control and a 5psi wastegate spring.  It allows me to control how much boost pressure is applied to both sides of the wastegate valve at any point and fairly accurately control boost target as a result. I've tuned it so that it's able to target anywhere from 5psi to 25psi depending on what's needed.  The target tables I've set up in that car are Gear vs RPM, so every gear has potential for a different boost (and torque) curve.   First and second gear have quite low boost targets, third gear actually has different target boost all the way through the rpm range as it's a stock RB25 gearbox - the boost targets have been chosen to maintain a peak of 600nm (what the owner has set as the maximum torque he's happy with putting through the stock 3rd gear) but it carries that to the rev limiter.   The boost curve to achieve that is something of a ramp up, then hold, then ramp up again and the power curve looks more like a flat line haha.  
    • thx78
      Boost level and torque curve

      By thx78 · Posted

      so you can decrease or increase the boost depending on the diet as you wish?     by acting on the wastegate?
    • Lithium
      Boost level and torque curve

      By Lithium · Posted

      That's torque and power, it's all from a single run.  The boost curve is "held back" from it's peak target in the 3500rpm to 5000rpm range from memory, so it ramps hard to something like 18psi then climbs more progressively to 23psi nearer 5000rpm.   It makes the torque (and power) ramp more "natural" and less hard on parts and traction, it doesn't feel artificially held back.   
×
×
  • Create New...