Wheel Sizes

[K67 KRB]

This might be a really stupid question....

But if I was to order new wheels for my griff, and I ordered 16" for front and 17" for back, would I need to get any extra modifications to my griff, bearing in mind that the wheels are four stud wheels and its a 1992 4.3

Would affect the handling etc.

BTW. I know about the TVR factory mod. but I don't like the Spiders!!

Any advise would be greatly appreciated.

[IPAddis]

As long as you have the correct offset, stuf PCD and the rolling circumference of the tyre isn't changed, you should be fine. Search the archives for more details.

[just trouble]

Hello K67 KRB I had 17" alloys fitted all round and found no problems with the handling but boy the Griff looks cool.

[K67 KRB]

Nick,

Excellent......you got a picture!!!!

[JoolzB]

Do you have to recalibrate the dials to take into account the new wheel circumference? Would this not give inaccurate readings for speed and mileage etc? Or am I being stupid?

[shpub]

Yes and no. There is a tyre size calculator on my website that will give the %age error. The tables are also printed in the bible 2 so that you can choose the new wheels/tyres to have the same circumference and not need to calibrate the speedo.

Steve
www.tvrbooks.co.uk

[RichB]

On the basis that you will run a lower profile tyre the overall rolling circumference should be the same. Generally for each 1" increase in rim size decrease the profile by 5 i.e. a 15" 50 profile equates to a 16" 45 profile, of course tyre width also affects this slightly. Steve Heath has a good tyre size calculator on his web site http://ourworld.compuserve.com/homepages/shpub/ he also sells books about TVRs there Rich...

[joolzb]

Rich, are you on commission?

[RichB]

oh I see Steve posted a similar response at the same time! And no I'm not... R...

[joolzb]

Might get myself a copy, where's the best place?