Racing Gear Oil Question - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Transmission - Rearend
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 07-12-2006, 10:19 AM
Sudden Psycho 31's Avatar
Member
 
Last photo:
Join Date: May 2004
Location: Southern Indiana
Posts: 60
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Racing Gear Oil Question

I have a question on what oil to use in the rear end of 9 inch floater. It is used in a short dirt track circle car with 6.2 gears. We have been using VERY high quality gear oil, which is super thick. I understand that it thins some when at operating race temperatures, but was wondering what others are using.

It seems that a little thinner oil would have less drag, and produce a little more power. You lighten every component you can... then drop in the gooey-est gear oil in the rear. Doesn't make a lot of sense.

Of course going remotely close to being to thin would make me nervous.

I guess I am just curious if anyone has experimented in this area. Every little edge helps.

thanks 31

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 07-12-2006, 10:34 AM
xntrik's Avatar
Save a horse, Ride a Cowboy.
 
Last photo:
Join Date: Jul 2005
Location: Arkansas
Posts: 5,131
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
Of course we know that chassis dynos record noticable improvements by using synthetics.

I am a big believer in synthetics. I would think that worn-in gears could use lighter weight synthetics without problems. Maybe with Lucas additive.

First I think that I would take some temp readings after each race using infra-red and see how hot it is running after say 6 hot laps, 10 lap race, and 20 lap features. That way you might know how much it is actually thinning.

I have heard that the cup-cars use very light weight lube for qualifying only.

8 years ago we just used 85W90 Mobil 1 and never thought about it... Your results could vary.... LOL

I have often wondered how much oil ends up in the axle tube with all that constant cornering. Usually cars never get truely straight.


www.readershotrods.com

Last edited by xntrik; 07-12-2006 at 10:43 AM.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 07-12-2006, 11:09 AM
302 Z28's Avatar  
Last photo:
Join Date: May 2003
Location: North Texas
Posts: 10,837
Wiki Edits: 0

Thanks: 1
Thanked 86 Times in 73 Posts
Run synthetic, you do not need the heavy viscosity. Royal Purple Max gear oil needs no other additives.

Vince
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 07-13-2006, 09:28 AM
Sudden Psycho 31's Avatar
Member
 
Last photo:
Join Date: May 2004
Location: Southern Indiana
Posts: 60
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
thanks for the info... i already run engine synthetics. i think i will try the royal purple and see what i get
i will try the temp readings, before and after, and let you know what i find
Reply With Quote Quick reply to this message

Recent Transmission - Rearend posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Oil filter Super Magnets? Jag Daddy Engine 59 02-01-2006 07:36 PM
Gear Vendor racing juiced66malibu Transmission - Rearend 1 09-15-2005 07:53 AM
Oil Temperature and oil types (long) TurboS10 Engine 36 03-01-2005 01:51 PM
distributor gear / oil pump rod issue?? bskaggs Engine 8 06-11-2004 08:02 PM
which gear oil to use? darom Transmission - Rearend 4 02-12-2004 12:45 AM


All times are GMT -6. The time now is 05:07 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.