Hi all,

We need a bit of help please.

Gaz has asked me to measure up my chassis to double check his model of Epona.

If those of you with a book or plus four chassis could possibly find time to run a tape over yours we would be very grateful.

We measured the centre of rear wheel to the centre of the front wheel, and the outside of tyre wall
to outside of the tyre wall, both front and back. this is on a plus four, so those of you with book width chassis should be 100mm less.

These are my measurements, if i have got it right.

Wheelbase 2340

Track (rear) 1670

Track (front) 1605

This is running 195 tyres.

Many thanks for the help.

Paul G

Just been and measured mine which is a +4 book chassis but modified for irs using sierra diff. Still got the sierra tyres which I think are 185's and get very approximately:

Wheel base 2430
Rear track 1640
Front track 1540

quite a bit different!

Cheers for that Sammy.

I am also using a Sierra dif.


If we could get several sets of dims that would be nice. Sort of find an average.

Cheers,
Paul G

Track dimension is actualy measured from the centre of the tyres, not the outside. So you would then find that +4 cars have the same track as the Sierra, which is 1453mm front, and 1468mm rear, (saloon), and 1458mm rear, (Estate). No good me giving you my wheelbase as it's a home design chassis, but 2500mm is what it measures. HTH Ray

Cheers for that Ray.

AFAIK there are variants of the +4

I have added 4" to the centre of the car, front to back.
I think that others still have a narrow nose, and lengthened front wish bones.

Cheers
Paul G

Own design, but here you go.

Mine will be 2380 mm wheelbase, 1470 mm front track, rear 1505 mm rear. on 195 tyres

good luck

Here the dimensions of my +9 !! home made chassis:

Wheelbase 2470 mm, front track 1465mm, rear track 1545 mm running on 195 tires.

Greets Roy.