Race Car Tech Discuss anything related to road racing and auto X.

how strong are TII axles?

Old 05-18-08, 02:45 PM
  #1  
Resident Know-it-All
10 Year Member
Thread Starter
iTrader: (3)
 
patman's Avatar
 
Join Date: Aug 2002
Location: Richland, WA
Posts: 3,098
Likes: 0
Received 0 Likes on 0 Posts
how strong are TII axles?

So Ive been thinking about putting my slicks on lately, as im curious to see what the car will do, but I drive it to and from the track and I dont want to have to tow it home. I have been driving the car with sticky 275 street tires for a couple years and havent broken anything, but it spins like crazy all the time.

My whole drivetrain is stock from the clutch back. I dont care about breaking the tranny, I can drive home in 4th if need be, and I have a spare, so I figure axles are the next in line. The slicks I wanna run are 26x10s, I figure the car should be good for a low-mid 10 second pass with them if it holds together. Has anyone been running times like that on stock driveline parts? I'd like to run 18 psi (around 600-650whp, 500+ ft-lbs) if theres a chance it will hold together, but it doesnt seem likely to me.

The problem is I am completely out of money to throw at this thing, so upgrading is not an option. Someday in the future I plan on a supra tranny with a 8.8 independent rear end and 300m axles, but it wont be this summer unless someone donates them.

So what do you guys think, slicks or no?
patman is offline  
Old 05-18-08, 09:03 PM
  #2  
Armchair engineer
iTrader: (2)
 
j9fd3s's Avatar
 
Join Date: Mar 2001
Location: http://www.k2rd.com
Posts: 24,578
Likes: 0
Received 123 Likes on 112 Posts
no, if you have no money to fix it, dont break it.
j9fd3s is offline  
Old 05-18-08, 10:40 PM
  #3  
Resident Know-it-All
10 Year Member
Thread Starter
iTrader: (3)
 
patman's Avatar
 
Join Date: Aug 2002
Location: Richland, WA
Posts: 3,098
Likes: 0
Received 0 Likes on 0 Posts
well i can probably get a set of replacement stock axles if i have to, i guess my question really is is there any chance at all that the driveline will hold up to 500+ ft-lbs and slicks?
patman is offline  
Old 05-18-08, 11:00 PM
  #4  
backslash beanbagrace
10 Year Member
iTrader: (1)
 
Stanello's Avatar
 
Join Date: Oct 2004
Location: San Francisco, CA
Posts: 2,139
Likes: 0
Received 0 Likes on 0 Posts
Take a set of axles with you and bring some tools.
Stanello is offline  
Old 05-20-08, 12:30 PM
  #5  
Resident Know-it-All
10 Year Member
Thread Starter
iTrader: (3)
 
patman's Avatar
 
Join Date: Aug 2002
Location: Richland, WA
Posts: 3,098
Likes: 0
Received 0 Likes on 0 Posts
yeah tahts the plan if i do it

you guys having another dyno day anytime soon?
patman is offline  
Old 05-20-08, 07:30 PM
  #6  
backslash beanbagrace
10 Year Member
iTrader: (1)
 
Stanello's Avatar
 
Join Date: Oct 2004
Location: San Francisco, CA
Posts: 2,139
Likes: 0
Received 0 Likes on 0 Posts
Nothing planned yet.
Stanello is offline  
Old 05-22-08, 08:48 AM
  #7  
Gen 2 Raced Hard NA 13B
5 Year Member
 
Join Date: Apr 2006
Location: Canada
Posts: 272
Likes: 0
Received 0 Likes on 0 Posts
test

test
SCCA RX7 RACER is offline  
Old 05-26-08, 01:31 PM
  #8  
Junior Member
 
Join Date: May 2008
Location: Queensville
Posts: 32
Likes: 0
Received 0 Likes on 0 Posts
I would be worried about my tranny at that point. If you grenade your clutch the car won't move. That would be worse than the axles, a little harder to change at the side of the road.
Defcon9 is offline  
Old 05-27-08, 12:17 AM
  #9  
the implications matter
10 Year Member
iTrader: (1)
 
frijolee's Avatar
 
Join Date: Dec 2005
Location: Tustin, CA
Posts: 519
Likes: 0
Received 0 Likes on 0 Posts
Stub axles fail first, the inner CV cup and/or ring and pinion is next so going 300M on the axles doesn't help you much. Most of the v8 guys start breaking things the second they add slicks at >400 hp.

If you're putting down that much power you might want to think about doing the mustang cobra rear end. Talk to AndrewB70 on v8rx7forum.com if you're interested.
frijolee is offline  
Old 05-27-08, 01:49 AM
  #10  
Resident Know-it-All
10 Year Member
Thread Starter
iTrader: (3)
 
patman's Avatar
 
Join Date: Aug 2002
Location: Richland, WA
Posts: 3,098
Likes: 0
Received 0 Likes on 0 Posts
i have an upgraded clutch, that isnt an issue.

as for the cobra rear end, thats what i said in the 1st post. you still use 300m axles with it. but I dont have the $ for a whole new drivetrain right now, so thats not happening.
patman is offline  
Old 05-27-08, 09:05 PM
  #11  
Junior Member
 
Join Date: May 2008
Location: Queensville
Posts: 32
Likes: 0
Received 0 Likes on 0 Posts
I would personally say don't do it if you don't have the cash. Worst thing is if you get stuck with with no cash to fix it. That is a lot of torment on the axles to be runing slicks.
Defcon9 is offline  
Old 05-28-08, 02:20 PM
  #12  
the implications matter
10 Year Member
iTrader: (1)
 
frijolee's Avatar
 
Join Date: Dec 2005
Location: Tustin, CA
Posts: 519
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by patman View Post
i have an upgraded clutch, that isnt an issue.

as for the cobra rear end, thats what i said in the 1st post. you still use 300m axles with it. but I dont have the $ for a whole new drivetrain right now, so thats not happening.
Gotcha. I'd say no slicks then.
frijolee is offline  
Old 05-30-08, 10:50 AM
  #13  
Viper Eater
5 Year Member
iTrader: (2)
 
RXTASY57's Avatar
 
Join Date: Oct 2006
Location: Idaho
Posts: 894
Likes: 0
Received 0 Likes on 0 Posts
Actually you guys have it back asswards. Slicks are much more forgiving on the drivetrain than street tires or drag radials.
I have snapped two axles on drag radials and have yet to snap any with slicks.
RXTASY57 is offline  
Old 05-30-08, 11:01 AM
  #14  
the implications matter
10 Year Member
iTrader: (1)
 
frijolee's Avatar
 
Join Date: Dec 2005
Location: Tustin, CA
Posts: 519
Likes: 0
Received 0 Likes on 0 Posts
More forgiving that drag radials I might believe, vs street tires is hard to understand. Are any tires more likely to wheel hop than others?
frijolee is offline  
Old 05-30-08, 11:26 AM
  #15  
Full Member
 
Join Date: Apr 2007
Location: Perth, Australia
Posts: 123
Likes: 0
Received 0 Likes on 0 Posts
slicks + decent power = destroyed axles..

if you have a two way you can still drive on one axle .. haha a... just dont put your foot down , as youll find your self changing lanes ....

most people with drag cars go straigh up hilux or 9 inch..
Wezzmo is offline  
Old 05-30-08, 12:44 PM
  #16  
just dont care.
iTrader: (6)
 
jacobcartmill's Avatar
 
Join Date: Jul 2002
Location: Nashville, TN
Posts: 9,386
Likes: 0
Received 1 Like on 1 Post
Originally Posted by frijolee View Post
If you're putting down that much power you might want to think about doing the mustang cobra rear end. Talk to AndrewB70 on v8rx7forum.com if you're interested.


werd.

andrewB is a good friend of mine. that subframe/rear can take some serious abuse. i'd definitely check into it.

but as far as your current setup goes, i'd just head up to the track expecting to break something and see what happens. just bring some extra axles and butt-axles and make a few hard passes.

FWIW, about the slicks vs sticky drag radials: slicks absorb MUCH more of the instant shock that the driveline sees during a launch, so your drivetrain is much better off on some wrinklewall slicks than it is on some stick street tires with a stiff sidewall. i think you'll be fine launching at the track.
jacobcartmill is offline  
Old 05-30-08, 12:48 PM
  #17  
Junior Member
 
Join Date: May 2008
Location: Queensville
Posts: 32
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by RXTASY57 View Post
Actually you guys have it back asswards. Slicks are much more forgiving on the drivetrain than street tires or drag radials.
I have snapped two axles on drag radials and have yet to snap any with slicks.
???Street tires have so much less traction than slicks. Maybe it was coincidence that you weakened the axles with slicks and snapped it with streets. But I'm pretty sure that slicks have way more grip than streets.

As for wheel hop, I find a lot of that can be suspension related not tires...well tires affect it but suspension can fix it. Engine mounts can affect wheel hop a lot, try stiffer engine mounts.
Defcon9 is offline  
Old 06-28-08, 09:06 PM
  #18  
Full Member
10 Year Member
 
1nastyturboII's Avatar
 
Join Date: Aug 2003
Location: NYC
Posts: 198
Likes: 0
Received 0 Likes on 0 Posts
If you ride the clutch out it will hold up, but if you try & grinade it then yes they will break..
1nastyturboII is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
FührerTüner
The Bad & Fugly Members
5
09-29-15 06:56 PM
gtcd
1st Generation Specific (1979-1985)
3
09-17-15 01:15 PM


Thread Tools
Search this Thread
Quick Reply: how strong are TII axles?


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: