944 man said:
You don't need lights for an MOT, as Dave will confirm.
With regards to a rear cage, I would suggest contacting Rollcentre Racing. They will make a rear without front hangers and with a harness bar. It doesn't weight a deal and it doesn't cost a lot.
Having gone to such lengths I would strip the car hand have the body dipped. You are fighting for grammes as JS pointed out, when there are tens of kilos still available for relatively easy picking.
You have also unwisely dismissed the wiring loom. I know exactly early and late looms weigh and both have lots of weight to save. Listen to Neil Haughey if he will comment - he was sceptical when I suggested this for his racer a decade ago.
Id also remove the cross member, fit a series two type and plastic tank. Solid transaxle mount too. If its too noisy then go faster - they quieten right down at 95mph-100mph...
If it was to be raced, sure the whole lot would be removed the shell stripped and a multi point weld in cage installed, but it's staying as a roadie for now.
There could be many Kilo's removed for race use (And added with the cage) but there still are a few more kilo's that can be shed for road use without going to any extremities of taking the car off the road for several months stripping wiring looms and underseal etc.., which I'm not prepared to consider as it was not used previously for 3+ years whilst the whole project was undertaken and I'm want to continue using it a lot!
The Kilo's lost with the door mods will take the car's mass into a figure beginning with Nine, and then after this I'm done except I could lose
a few more Kilo's (without taking it off road) by replacing bolts with Ti.
The car's 1987, so I don't know if the aluminium X member is a mark 1 or 2 ? if your saying there's a difference and the later is lighter? but I'm on a Manual rack, no Power steering and the Gearbox uses the early twin mounts (new OE harder compound from the choice of 2) which are good and I wouldn't want solid anyway. The whole car has mostly OE Rubber bushings (Top mounts, ARB's, wishbones, trailing arms. steering Rack etc..) Except the Elephant Racing Poly Bronze Torsion Tube Spring plates.
I don't remember exactly the plastic tank weight but I seem to remember it was either heavier or similar so
the pressed steel one was retained but with Internal baffles installed...
The 924S has a 66 litre capacity and I think the plastic one's 80L ? mine uses an external mounted pump, the later has an in
tank one I think? and the car 's consumption is brilliant (35+mpg !) so I don't need bigger.
R
] They are testable if fitted (dipped, not main), but if completely removed along with the switch then there is no reason for failure. You will simply receive an advisory note to the effect that they weren't fitted so have not been tested, which is exactly what happens with a bike, but people call it a daylight MOT. You will notice that I havent said that they do not need to be fitted to a road car, because C&U law and MOT test requirements differ.
