Four-Speed CRX HF??? - Page 2 - Fuelly Forums

Android Users - Coming Soon! - Migrating from aCar 4.8 to 5.0

Reply
 
Thread Tools Display Modes
 
Old 04-10-2011, 02:58 PM   #11
Registered Member
 
theholycow's Avatar
 
Join Date: Apr 2008
Posts: 6,624
Country: United States
Send a message via ICQ to theholycow Send a message via AIM to theholycow Send a message via MSN to theholycow Send a message via Yahoo to theholycow
Re: Four-Speed CRX HF???

I guess it depends on what ratios you're comparing. My VW was in 5th at 30 and I was shifting constantly and it did great at lower speeds. Highway driving brought my average down. If the ratios got closer and 5th was good from 20 then it would probably lose a lot of city FE.

My Buick can't use 5th until 50 and it's not really useful until 60. Highway driving definitely brings my FE up. I thought having a highway-only gear would help a lot but I've been wondering if my 40% highway driving is enough to make my gearing worthwhile...the larger non-highway portion of my driving could definitely use some closer ratios, I often feel like I'm not quite at the perfect RPM.

Of course, there's a whole lot more variables in that comparison than gears, like a rotten carburetor vs. the latest wideband-controlled fuel injection, but OTOH the VW definitely sees less highway aero penalty than the Buick.
__________________

__________________
This sig may return, some day.
theholycow is offline   Reply With Quote
Old 04-10-2011, 09:24 PM   #12
Registered Member
 
imzjustplayin's Avatar
 
Join Date: Dec 2011
Posts: 720
Country: United States
Re: Four-Speed CRX HF???

Quote:
Originally Posted by theholycow View Post
I guess it depends on what ratios you're comparing. My VW was in 5th at 30 and I was shifting constantly and it did great at lower speeds. Highway driving brought my average down. If the ratios got closer and 5th was good from 20 then it would probably lose a lot of city FE.

My Buick can't use 5th until 50 and it's not really useful until 60. Highway driving definitely brings my FE up. I thought having a highway-only gear would help a lot but I've been wondering if my 40% highway driving is enough to make my gearing worthwhile...the larger non-highway portion of my driving could definitely use some closer ratios, I often feel like I'm not quite at the perfect RPM.

Of course, there's a whole lot more variables in that comparison than gears, like a rotten carburetor vs. the latest wideband-controlled fuel injection, but OTOH the VW definitely sees less highway aero penalty than the Buick.
But I don't see how having short gearing is going to improve fuel economy. I mean isn't it likely that while your VW gets good fuel economy, the gearing is actually working against you instead of with you and that the gearing you have is a compromise of performance and power? I mean the Civic VX really should be in 5th gear by 35mph and the CRX HF Fed at 36mph (assuming you shift into 5th so that you're at 1200rpm).
__________________

imzjustplayin is offline   Reply With Quote
Old 04-11-2011, 05:17 AM   #13
Registered Member
 
theholycow's Avatar
 
Join Date: Apr 2008
Posts: 6,624
Country: United States
Send a message via ICQ to theholycow Send a message via AIM to theholycow Send a message via MSN to theholycow Send a message via Yahoo to theholycow
Re: Four-Speed CRX HF???

It's not the short gearing that helps, it's the close ratios giving you an optimal gear for every speed you'd drive. The short gearing, of course, becomes a detriment once your speed goes beyond optimal for your highest gear.
__________________
This sig may return, some day.
theholycow is offline   Reply With Quote
Old 04-13-2011, 11:01 PM   #14
Registered Member
 
Join Date: Aug 2013
Posts: 6
Country: United States
Re: Four-Speed CRX HF???

Found your next car, Arky!

http://www.gassavers.org/showthread.php?t=12528

She's a peach!
__________________

doctorgonzo is offline   Reply With Quote
Reply

Thread Tools
Display Modes

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
National speed limit pushed as gas saver OokiiMamoru General Discussion (Off-Topic) 2 07-04-2008 02:24 PM
My SGII has been ordered through cleanMPG.com! Project84 General Fuel Topics 8 06-01-2008 06:44 AM
Is there a OBDI or OBDII conversion for older vehicles? kozaz General Fuel Topics 3 11-13-2007 08:32 PM
The 1995 Vx Is Home In Florida And Performed Perfectly All The Way From Washington Dc panamacolin Introduce Yourself - New member Welcome 13 09-30-2007 02:09 PM
XFi mirror caps? baddog671 General Fuel Topics 4 07-10-2007 03:51 PM

Powered by vBadvanced CMPS v3.2.3


All times are GMT -8. The time now is 11:18 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.