Jump to content
Please check your junk folder for registration emails ×
  • Current Donation Goals

    • Raised $0.00

New to me 4th gen Outback questions


Mainlander

Recommended Posts

Hi all.

I've just purchased a  4th gen outback 2.5l with the CVT, ex Japan.  This is my first Subaru, and my first AWD car, so I'm fairly green here.

There will be a lot of questions over time and this place looks like a good resource of information.

 

I bought the car sight unseen... (yeah, I know) and the first thing I have noticed is that the front tires are much newer and a different brand than than the rear tires.

How fussy is the AWD system about this and does this really matter?

I'm not too concerned with super-car like handling and performance but I do want the car to be safe and to last me for a long time.

Am I going to wreak anything driving it around like this?

 

Thanks in advance.  Mainlander.

Edited by Mainlander
Link to comment
Share on other sites

Thanks for that.  I had picked up from somewhere that the difference in exact measurements form one tire maker to the next and the change in rolling diameter with tires wearing could cause issues with some AWD systems.

I'll stop worrying about it now and find something else to stress about, like CVT's blowing up or something.

  • Like 1
Link to comment
Share on other sites

So.  I downloaded a manual and found this:

 

"All four tires must be the same in terms of manufacturer, brand(tread pattern), construction, de-gree of wear, speed symbol, load index and size. Mixing tires of different types, sizes or degrees of wear can result in damage to the vehicles power train. Use of different types or sizes of tire scan also dangerously reduce controllability and braking per-formance and can lead to an accident."

 

Mmm.  I guess I can somehow measure the tires to prove that they are the same size, or is Subaru just being cautious.

Link to comment
Share on other sites

  • Admin

It basically boils down to any difference makes the diffs work so they can get hot and prematurely wear. No idea what CVT’s use for centre diffs so can't comment there. 

Tread depth can have an impact along with brand as they aren't all made equal and some brands will run slightly wider and taller for the same claimed size. For a non performance vehicle with assumedly  loose factory diffs the impact is debatable. 

  • Like 1
Link to comment
Share on other sites

I'm fairly sure the cars with the CVT are front wheel drive with the rear axle being driven by a clutch pack like the 4AT (I think), with the difference being that the CVT more actively drives the rear wheels under normal driving conditions.

I did find this information somewhere when selecting a more off road capable station-wagon to replace my Toyota sedan,  I forget where now.

I guess its cheaper to build than a proper center diff, and maybe some fuel consumption advantages too, I'd guess less spinning weight with a clutch pack.

 

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Recent Status Updates

    • MrSg9Sti04

      Afternoon team,
      im new to the group first time posting. Im hoping some body can help me get my launch control all dialled in on my link g4x. Ive had the computer and car all tuned from chris at prestige awesome knowlegable guy super happy with the results but now im wanting to get my launch/anti lag all dialled in. Ive been reading multiple different forums etc all with different conflicking information which has made me nervious with what do i listen to this or that if you get what i mean. Now ive started to make myself familiar with my PClink software etc the past few weeks and im eager to learn how to do minor setups or tweaks etc so im not relieing on my tuner so much and obviously saving myself abit hurt in the back pocket. 
      Now back to the question at hand.... Im wondering if theres and one who could please share there knowledge and wisdom with setting all my values, timing, fuel etc when i have launch control armed and engaged, or even a launch tune file they can possibly send me to load onto my tune. Ive figured out the setup of my digital inputs turning launch control on etc and its obvisously on its pre set factory settings. It engages but doesnt sound the greatest or as angry as it should i feel. Hence reaching out to you good buggers. 
       
      Cheers in advance for any info and help yous maybe able to give me.
       
      Cheers Shaun
      · 0 replies
    • Joker  »  gotasuby

      updated your DP's too : hope that's ok!
      · 0 replies
    • Joker  »  SAS

      Updated your DP's to reflect your business page  
      · 0 replies
    • Joker  »  Nachoooo

      Updated your Avatar : couldnt help myself  cheers!
      · 0 replies
  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Forum Statistics

    40.9k
    Total Topics
    573.5k
    Total Posts


×
×
  • Create New...