High RPMS in 5th - LS1TECH

Go Back   LS1TECH > WELCOME TO LS1TECH > New LS1 Owners - Newbie Tech
Log In 
Search


New LS1 Owners - Newbie Tech
Basic Technical Questions & Advice
Sponsored by
Improved Racing


High RPMS in 5th

Reply
 
Thread Tools Search this Thread
Old 10-08-2009, 08:24 AM   #1
TECH Apprentice
 
Trader Rating: 0
Join Date: Sep 2009
Location: Louisville, KY
Posts: 332
Default High RPMS in 5th

So, I was driving the other day in my wife's 91 honda accord and noticed that in 5th gear on the highway doing around 65-75 mph the RPM's were around 3k or higher. This doesn't sound normal... I mean, I know the car has 244k miles on it, and the muffler fell off awhile back (too lazy to fix just yet) but I didn't think a muffler would seriously make that big of a difference... that's the only thing wrong with the car that I can think of. Anyone have any ideas?

Also, it's not just in 5th that the RPM's are high... it seems like almost every gear has high RPMs, but the idle is nice at like 700.

Last edited by DukesOfHazard; 10-08-2009 at 08:30 AM.
DukesOfHazard is offline   Reply With Quote
Old 10-08-2009, 10:26 AM   #2
TECH Senior Member
 
01ssreda4's Avatar
 
Trader Rating: 89
Join Date: Aug 2007
Location: Turnin' Wrenches Infractions: 005
Posts: 20,235
Default

My DD 4 banger is way higher compared to my SS on the hwy. The reality is that's how they are geared bc they have no torque. That's how high they have to spin in order to maintain speed and slowly accelerate without downshifting in OD.
01ssreda4 is online now   Reply With Quote
Old 10-08-2009, 10:38 AM   #3
TECH Resident
 
cherryelky305's Avatar
 
Trader Rating: 2
Join Date: Mar 2007
Posts: 752
Send a message via AIM to cherryelky305
Default

what he said, v8's dont have to work hard on flat highway.
__________________

1980 El camino
2002 LS1 swap
cherryelky305 is offline   Reply With Quote
Old 10-08-2009, 11:43 AM   #4
TECH Apprentice
 
Trader Rating: 0
Join Date: Sep 2009
Location: Louisville, KY
Posts: 332
Default

Yeah, I had been googling the issue a while back and could never remember seeing anything that would make a difference. But I found a Honda forum today that told me exactly what you guys just said.

Would putting a muffler back on the car cause any difference? Lower RPM's or better gas mileage you think? I know it'll quiet the stupid thing down, but I plan on selling it soon so it wasn't really an issue. But now it looks like we'll have to keep it longer since me buying the GTO fell through.
DukesOfHazard is offline   Reply With Quote
Old 10-08-2009, 11:53 AM   #5
TECH Enthusiast
 
TAtoad's Avatar
 
Trader Rating: 20
Join Date: Jun 2006
Location: Eagle Pass, TX
Posts: 593
Default

no it wouldn't make a difference. all hondas run high rpms compared to even some domestic 4bangers, but thats the way they are. my friends b16 is at over 4k rpm at 70mph. its just the gearing they have. even then they kill on gas mileage. nothing to worry about.
__________________
2002 ws6 m6

Let's light the fires and kick the tires!
TAtoad is offline   Reply With Quote
Old 10-08-2009, 09:17 PM   #6
TECH Regular
 
Trader Rating: 2
Join Date: Jul 2008
Location: Mobile, AL
Posts: 441
Default

It's all in the gearing. That's perfectly normal for a Honda.

My DD 4cyl spins 32xx rpm at 70, where as my TA with 4.10 rear end runs about 1900. The DD 4cyl only gets 5 mpg better, too. And the TA has a cam/heads/300 more hp lol.
4WOFURY is offline   Reply With Quote
Old 10-08-2009, 11:38 PM   #7
On The Tree
 
Dabom75's Avatar
 
Trader Rating: 3
Join Date: Sep 2009
Location: Ashland,AL
Posts: 136
Default

Think of it like this

For a greyhound to outrun a human he does not have to work that hard.

For a hamster to outrun a human it is hard damn work.
__________________

Great memory from G15.

"He is an old, gay, Jew from the country of Arkansas."
Dabom75 is offline   Reply With Quote
Reply


Tags
06, 5th, gto, high, rpms


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 On
Refbacks are Off


 

All times are GMT -5. The time now is 10:57 AM.


Powered by vBulletin® Version 3.8.7 AC2
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Advertising - Terms of Service - Privacy Statement - Terms of Service - JOBS
Emails & Contact Details