Well it's Renault, so no, there's a little bit more to it.
All Cleon's That is post '68 1289 and 1397cc engines use basically the same flywheel with a 180mm clutch.
The 5 Gordini turbo uses the same style, but with the reluctor ring for the Renix.
There are however 2 effective thicknesses at 28mm for most and 23mm for the Gordini turbo, so getting the clutch actuation spot on is a bit of a Faff.
All later 80's on cars with Renix are 23mm. This was the Issue on
@paule78 's car. It now sports a custom flywheel which is basically 5GTT and with 60-2 Reluctor, but with Mk1 5 Standoff and clutch pitching, which should get it over it's crappy feeling clutch, no doubt he will tell me when it's back on the road this year.
Therefor simplest and cheapest is to fit MK1 5 Gordini Turbo flywheel to the GTT motor and use a 180 clutch with a 5mm spacer fitted to the nose of the Release bearing to take up the missing space.
The 8 clutch mech has it's limitations, but works fine if everything is set up correct. It does not have the flexibility of everything that came after it.
The 8 is not the Dauphine, there's no comparison. The 8 chassis with the shell properly braced and the suspension dialled in will handle 200 bhp. Mine had getting on for 180 and I could use full throttle no problem in the wet. This is why the only Dauphine part in my car is the shell
It's hard to explain, but I had a Nice 5GTT when we did the original R10 turbo, which was just the roughest of the rough, it really was. As far as Driving went, the 10 would run rings around the 5, especially in the wet. It left you feeling that a turbo 10 was a thing Renault should actually have made.