Series 1 240Z's (USA Imports)

260 and 280s not competitive in HSCC
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One of the regs requires the use of the original carbs fitted to the car - 260s would therefore have to run with the "gasometer" emissions carbs. At least you can modify the internals of a 240Z carb to improve it, but there is no such facility for the 260 monsters. 280s would have to run with the original fuel injection, which we know is also a limiting factor in absolute 280 performance. You then have the weight issue...
280 trailing arm rear suspension will probably be difficult to get performing like a well-sorted S30.
I'd love for someone to prove me wrong and build a successful HSCC car from the later types!
 
Mind you Mike, if you remember the old silver 260Z was running at the Pod as fast as Kevin Irons in his stripped out blueprinted HSCC std 240Z, and it had the standard engine, std 260carbs with Janspeed manifold and system, it even had an amp in and as you know it also performed at Goodwood as well...OK at Goodwood it had a slightly warmed 240Z lump in it
 
Anyone sniff a waft of nostalgia flaoating by ?

Me too, I'd love to see a stripped out 280 ZX 2 seater (1100 kgs?) go historic racing ! Gotta be cheaper to set up than a 240 and as much fun ! Just what could be done internally wise (unnoticed of course) to boost up the power ? The brakes are already better than a 240s ! A nice R200 diff and late gearbox....
 
The carbs would be sort of O.K. up to a level (if they were in perfect condition), but as head and cam are unlimited for HSCC, they would soon run out of puff at the higher rpm allowed by the sort of specs allowed.I'm not sure that the HSCC organisers have considered what will have to be enforced with injection systems. Will they be able to recognise a high flow injector even if it bit them on the bum? And it wouldn't be too hard to build modern reprogrammable ECUs into old 280ZX cases linked to an original wiring loom....
 
"Will they be able to recognise a high flow injector even if it bit them on the bum? And it wouldn't be too hard to build modern reprogrammable ECUs into old 280ZX cases linked to an original wiring loom...." Would they .......? Should be able to get 250 bhp from a nicely sorted 2.8 with all-round disc brakes !

Man, I'd love to see it ! I might have to speak to Boomer to see if w can't do that over here to scare some historic racers !
What would be their direct competition (classwise) ?
 
Is there really nothing else in the same class between 2.4 and 2.999 ? Capri 2.6or 3.0 s, Marcos 3.0 s for instance ?
 
The Crapi (sic) doesn't stand a chance and it should be in a saloon class rather than RoadSports (mind you, it might be argued that a 2+2 260Z or 2+2 280ZX would make a suitable '70s saloon entry). All eligible Marcos models seem to be in the '60s classes.

The TVR 3000M has been reasonably successful in '70s RoadSports Class B (particularly in the hands of Julian Barter, one of the few people small enough to fit in one and still be able to drive), Triumph TR6, Porsche 911E, Ferrari 308GTB and Maserati Merak all rather less so. However, the Ferrari in the right hands is a potent contender for the supremacy of the 240Z. It is not unusual to see the 240Zs beating the big engined Class A competitors which include Championship winning Morgan +8 of Richard Thorne, Robin Gray's Pontiac Firebird (another saloon car candidate?), MGB GT V8s and Porsche 928s. Don't underestimate the quality of the 240Z in this company - in the right hands they are Class and Championship winning cars!

Have a look at http://www.hscc.org.uk and http://www.70sroadsports.com for an idea of what is going on at these events.
 
A well sorted 260Z / 280ZX 2+2 in the saloon class could (should?) be a class winner then ?
And would 280Zs be eligible ?
 
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