Jump to content

Performance vs Tyre Size...


Mark
 Share

Recommended Posts

I am currently intending to fit 235/85-16s to my D1. No Lift at present, but I am putting the RR Police Spec Springs on, which should help a little.

How badly will the 235s hit the performance of a tired 200TDI?

Would I be better off going for a smaller radius (if so, what?) since this is a multi purpose vehicle, and will be used for towing as well as off roading.

ta

Mark

Link to comment
Share on other sites

I am currently intending to fit 235/85-16s to my D1. No Lift at present, but I am putting the RR Police Spec Springs on, which should help a little.

How badly will the 235s hit the performance of a tired 200TDI?

Would I be better off going for a smaller radius (if so, what?) since this is a multi purpose vehicle, and will be used for towing as well as off roading.

ta

Mark

Mark.....

I recently fitted 235/85's to my 300tdi 'toy' Disco (not my daily driver Disco). The performance hit IS noticable, especially when pulling away - the best analogy I can use is it feels like your driving 1 gear higher, so it's like trying to pull away in 2nd, etc. I often find myself cruising in 4th as it feels like 5th, and I can only use 5th to maintain 70mph, and then only on a flat road.

You'll have to do some wheelarch trimming (mainly at the back, but also the front bumper end-caps) to prevent fouling (as in catching, not as in pants!), and the steering stops will need to be wound out a bit to prevent the tyres from rubbing against the chassis/suspension arms.

If you're thinking of towing with 235's I'd DEFINITELY have reservations.

At the moment I'm on the lookout for a Defender transfer box which has 1:1.4 gearing rather than the Disco's 1:1.2 - apparently this solves the gearing problems.

Hope that helps

Dunk

Link to comment
Share on other sites

Oh yeah..... and I'm also in the process of getting extended bump-stops to prevent the top of the tyre hitting the top of the wheelarch when off-roading.

235/85's do however make a Disco look a lot more 'purposeful' IMHO :D

Dunk

Mark.....

I recently fitted 235/85's to my 300tdi 'toy' Disco (not my daily driver Disco). The performance hit IS noticable, especially when pulling away - the best analogy I can use is it feels like your driving 1 gear higher, so it's like trying to pull away in 2nd, etc. I often find myself cruising in 4th as it feels like 5th, and I can only use 5th to maintain 70mph, and then only on a flat road.

You'll have to do some wheelarch trimming (mainly at the back, but also the front bumper end-caps) to prevent fouling (as in catching, not as in pants!), and the steering stops will need to be wound out a bit to prevent the tyres from rubbing against the chassis/suspension arms.

If you're thinking of towing with 235's I'd DEFINITELY have reservations.

At the moment I'm on the lookout for a Defender transfer box which has 1:1.4 gearing rather than the Disco's 1:1.2 - apparently this solves the gearing problems.

Hope that helps

Dunk

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...

Important Information

We use cookies to ensure you get the best experience. By using our website you agree to our Cookie Policy