I am interested to follow progress with this car. I must admit that if I had known I could get a Class C V6 engine for £1800 I might have pursued the purchase of it a bit more aggresively myself, I was quoted £6K for a Class c engine build and that put me off!!
I probably miss quoted what I meant . . . I meant to say about £1800 in parts. Labour on top.
Most of the 75's in C with the exception of Clive's car are probably running pretty standard motors.
I know Jules Birley who raced the 75 I bought, ditched the 3.0 that Minette raced with, and had a new fully prepped motor built by Dawie at Glenwood in South Africa. Who knows what inside it!!!
One of the biggest problems is the regs on suspension for the 75. It says torsion bars bars are free. Have you seen the options available for torsion bars!!!!! they are very limited, very expensive, and hard to get hold of, and a b*tch to set up properly.
It would be much easier to be allowed to run complimentary springs on a coil-over damper (ron simons RSRACING style) to make up the required spring rates with the standard torsion bars. Just another example of outdated regulations.
I'd also vote for being able to use the standard 24v 3.0 motor as used in the class C gtv's with no mods as per the regs . . . but thats probably not going to happen (as Clive H has built lots of 12v cars
) Presently the 12v cars are giving away around 40 to 45HP compared to the 24v engines which are allowed a re-chip, and run tubular exhaust manifolds as standard.
Or make the new GTV's run with a 12v motor???
With the standard 12v cams, even the 164 cloverleaf or SZ versions, a 12v 3.0 engine, to class C regs, is never going to make more than about 200hp on a good day.
Put another way, a bog standard 156 with the 2.5 24v engine make 192bhp standard
and would leave most modified 12v 75 road cars for dead.
The regs for class C V6 75's should be brought in line on the following at least
Regs for the class D 75 twinsparks: Specific freedoms for the 75 are underlined. . .
5.7.6 EXHAUST SYSTEM:
The exhaust manifold must remain as standard. On the 33/Alfasud.Arna.145 and 146 Boxer
the manifold is defined as that part between the cylinder head and the join to the single
exhaust pipe. Exhaust systems beyond the manifold are free within limitations of 5.16 Any
standard exhaust manifold is permitted on Boxer engines. 75 Twin Spark engines may be
fitted with tubular exhaust manifolds.
5.11 (D) BRAKES
5.11.1 MODIFICATIONS PERMITTED:
Ventilated front discs are permitted on all models. On all Boxer engined models fitted with
ventilated discs, the discs and calipers must be as fitted to the 1.7 33 16v and remain to the
standard specification for that model.
33 Permanent 4 - discs and calipers must remain as standard front and rear.
145/146/147/155/156 Twin Spark - discs and calipers must remain as standard.
75 Twin Spark - Braking systems are free.
Brake lining material (pads) is free. Flexible hoses and brake pipes are free subject to
limitations of MSA Technical Regulation J.20.5