-
Grand Future Air Dried Beef Dog Food
Air Dried Dog Food | Real Beef

Carnivore Diet for Dogs

Go Back   Automotive Forums Car Chat > Engineering/ Technical
Register FAQ Community
Engineering/ Technical Ask technical questions about cars. Do you know how a car engine works?
Reply Show Printable Version Show Printable Version | Subscription Subscribe to this Thread
 
Thread Tools
  #1  
Old 06-23-2005, 05:28 PM
rice(er)'s Avatar
rice(er) rice(er) is offline
AF Enthusiast
 
Join Date: May 2005
Posts: 1,047
Thanks: 0
Thanked 0 Times in 0 Posts
highway performance

im a little worried about my car on the highway, i have a 5 speed manual and it goes a little over 3000 rpms at around 70 mph on the highway at cruising speeds, is this normal? my mom's automatic camry only cruises at about 2000 rpms at 70 mph on the highway, so is my car actually working harder to stay at 70 mph?? thanks
Reply With Quote
  #2  
Old 06-23-2005, 06:40 PM
kcg795 kcg795 is offline
AF Regular
 
Join Date: Jul 2004
Posts: 259
Thanks: 0
Thanked 0 Times in 0 Posts
Re: highway performance

Perfectly normal. Is your 5-speed a 4 cylinder and your mom's Camry a V6? You'll, quite often, see smaller engine cars with lower gear ratios. V6s have enough torque to be geared so they can hum along at 70 MPH at 2000 RPMs. Your car is working no harder than your mom's car. So, no need to worry. Your car will last just as long as your mom's Camry if you take care of it.
Reply With Quote
  #3  
Old 06-23-2005, 11:37 PM
beef_bourito's Avatar
beef_bourito beef_bourito is offline
AF Enthusiast
 
Join Date: Nov 2003
Posts: 3,191
Thanks: 0
Thanked 0 Times in 0 Posts
Re: highway performance

the only thing is you might be getting lower fuel economy. higher rpm=higher consumption. this is just the gearing of your car. i'd be worried if it was a modern car that was reving at say 4500 or 5000 rpm at 70.
Reply With Quote
  #4  
Old 06-24-2005, 12:40 AM
TheSilentChamber's Avatar
TheSilentChamber TheSilentChamber is offline
Forunn Daberator
 
Join Date: Mar 2004
Posts: 10,593
Thanks: 363
Thanked 364 Times in 309 Posts
Re: highway performance

Overdrive transmission, the future is now. But like said above... yeah.
__________________

Reply With Quote
  #5  
Old 06-24-2005, 01:18 AM
sierrap615 sierrap615 is offline
Master Tech Wanna-be
 
Join Date: Jul 2003
Posts: 2,728
Thanks: 0
Thanked 0 Times in 0 Posts
Re: highway performance

plus gear ratios differ between manual and auto trannys, two big reasons IMHO are manual transmission commonly have one more gear then autos and the added power from the torque converter in an automatic transmission allows higher gear raitos with approxmently the same amount of low speed torque.
Reply With Quote
 
Reply

POST REPLY TO THIS THREAD

Go Back   Automotive Forums Car Chat > Engineering/ Technical


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 02:48 PM.

Community Participation Guidelines | How to use your User Control Panel

Powered by: vBulletin | Copyright Jelsoft Enterprises Ltd.
 
 
no new posts