post #1 of Old 08-26-2013, 04:21 PM Thread Starter
jasonjones21
Registered User
1989 YJ Wrangler 
 
Join Date: May 2013
Location: fontana
Posts: 255
Gear ratio

2012 jeep jk with 6 speed manual sport with 4.88 gear ratio and 35" tires what would the top speed with 4.88 and the 3.6l

jasonjones21 is offline  
post #2 of Old 08-26-2013, 05:03 PM
222Doc
Registered User
2012 JK Wrangler 
 
Join Date: Sep 2011
Location: Lake Havasu City
Posts: 5,651
speed is limited to about 95. so that. If I recall?

4:88 is fairly deep for 35"s in a 012+ 4:1 on 35"s gives about 2300rpm's at 70mph. that will be closer to 3krpm at 70. since these motors can spin at 6400rpm. top speed will still be limited by the governor still.

http://www.parker4wheelers.net
www.bullhead4wheelersinc.com
222Doc is offline  
post #3 of Old 08-26-2013, 07:02 PM
Butterjeep
Registered User
2015 WK 
 
Join Date: May 2012
Location: Edgewater
Posts: 518
I don't feel comfortable at anything above 80mph in my JK. It feels floaty and wanders a bit, the steering is vague with numb feedback at best. Then it gets worse at 80mph.

2014 Mustang GT Track Pack
2015 WK2 Limited 4x4
Butterjeep is offline  
post #4 of Old 08-26-2013, 07:17 PM
stephen28
Registered User
2013 JK Wrangler 
 
Join Date: Mar 2011
Location: centereach
Posts: 124
sorry to hijack a bit but as long as were on the subject..

do you think 4.56 gears would be sufficient for a 13 jku with 35" tires? or would i be better off with 4.88?

right now i have 3.73 gears and its just barely cutting it. i almost never use 5th gear anymore and 6th is non existent!

2013 JKU / 2.5" AEV / 35" GY MTR
stephen28 is offline  
post #5 of Old 08-26-2013, 08:13 PM Thread Starter
jasonjones21
Registered User
1989 YJ Wrangler 
 
Join Date: May 2013
Location: fontana
Posts: 255
My Problem is I can't keep it 6 going up a hill
jasonjones21 is offline  
post #6 of Old 08-26-2013, 08:14 PM Thread Starter
jasonjones21
Registered User
1989 YJ Wrangler 
 
Join Date: May 2013
Location: fontana
Posts: 255
I like to 85 Regularly
jasonjones21 is offline  
post #7 of Old 08-26-2013, 09:44 PM
AlbertaJeeper
Registered User
2013 JK Wrangler 
 
Join Date: May 2013
Location: Edmonton
Posts: 629
Quote:
Originally Posted by jasonjones21 View Post
I like to 85 Regularly
Holy hell! That's almost fast enough for time travel Doc!
AlbertaJeeper is offline  
post #8 of Old 08-26-2013, 09:57 PM Thread Starter
jasonjones21
Registered User
1989 YJ Wrangler 
 
Join Date: May 2013
Location: fontana
Posts: 255
Don't like to go slow I have a lot of trips to Arizona and don't like to go slow
jasonjones21 is offline  
post #9 of Old 08-27-2013, 07:55 AM
spyder6
Got that Toyota chit
 
spyder6's Avatar
2010  
 
Join Date: Feb 2006
Location: Louisville, KY
Posts: 12,042
Sounds like you don't like to go slow

2010 Magnetic Toyota 4Runner Trail Teams

My builds: Bruiser and The Grey

|Forge Overland| or follow us on Facebook
spyder6 is offline  
post #10 of Old 08-27-2013, 12:21 PM
kittenmittens
Registered User
2005 TJ Wrangler 
 
Join Date: Mar 2012
Location: Charlotte
Posts: 149
Quote:
Originally Posted by jasonjones21 View Post
My Problem is I can't keep it 6 going up a hill
i couldnt do that when i was stock

05 Rubicon 6" lift 35x12.5 BFG KM2
15 Rubicon Unlimited Hard Rock 2.5" lift 35x12.5 BFG KM2
kittenmittens is offline  
post #11 of Old 08-27-2013, 12:36 PM Thread Starter
jasonjones21
Registered User
1989 YJ Wrangler 
 
Join Date: May 2013
Location: fontana
Posts: 255
ThAts why I'm asking if 4.88 is enough without Sacrificing my Miles per hour
jasonjones21 is offline  
post #12 of Old 08-27-2013, 12:43 PM
spyder6
Got that Toyota chit
 
spyder6's Avatar
2010  
 
Join Date: Feb 2006
Location: Louisville, KY
Posts: 12,042
You have 6500 RPMs. The only thing you'll sacrifice is fuel mileage.

2010 Magnetic Toyota 4Runner Trail Teams

My builds: Bruiser and The Grey

|Forge Overland| or follow us on Facebook
spyder6 is offline  
post #13 of Old 08-27-2013, 12:56 PM Thread Starter
jasonjones21
Registered User
1989 YJ Wrangler 
 
Join Date: May 2013
Location: fontana
Posts: 255
I know what's Worrying me is that I can friend 80 In the Green
jasonjones21 is offline  
post #14 of Old 08-27-2013, 12:58 PM Thread Starter
jasonjones21
Registered User
1989 YJ Wrangler 
 
Join Date: May 2013
Location: fontana
Posts: 255
With 321 Gear ratio
jasonjones21 is offline  
post #15 of Old 08-27-2013, 01:10 PM
spyder6
Got that Toyota chit
 
spyder6's Avatar
2010  
 
Join Date: Feb 2006
Location: Louisville, KY
Posts: 12,042
4.88s on 35s is the mathematical equivalent to a stock rubicon.

2010 Magnetic Toyota 4Runner Trail Teams

My builds: Bruiser and The Grey

|Forge Overland| or follow us on Facebook
spyder6 is offline  
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



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 On

For the best viewing experience please update your browser to Google Chrome