1. HID lights on 98 Spec (added weight, but improved night visibility)
2. The most siginficant change are the wheels
96 Spec 195/55/15 4 stud
98 Spec 215/45/16 5 stud (rare tyres....)
3. Brake Discs enlarged
96 spec Front 14" Rear 13"
98 spec Front 15" Rear 14" (I don't know if this is correct as I thought these were mean't to be the same as the UK spec fronts, but the UK spec wheels are only 15")
4. Front Suspension - Modified to increase cornering speeds after extensive testing on the circuit.
96 Spec
Spring rate (KGf/MM) 4.4
Damper (KGf) (Full) 245
(short) 161
Anti Roll Bar (inches) 0.94
98 Spec
Spring rate (KGf/MM) 4.5
Damper (KGf) (Full) 231
(short) 142
Anti Roll Bar (inches) 0.98
5. Rear Suspension
96 Spec
Spring rate (KGf/MM) 4.4
Damper (KGf) (Full) 118
(short) 70
Anti Roll Bar (inches) 0.87
98 Spec
Spring rate (KGf/MM) 4.5
Damper (KGf) (Full) 100
(short) 59
Anti Roll Bar (inches) 0.91
This seems to indicate that Honda decided to increase the stiffnes of the spring slightly but decrease the dampening of the shocks. Also the anti roll bars were thickened. Perhaps someone who knows more about this can explain..... Wink
6. The 98 spec engine was equiped with an all stainless steel manifold giving the engine more torque at lower revs.
96 Spec - 200 ps @ 8000 rpm
18.5kgm @ 7200 rpm
98 Spec - 200 ps @ 8000 rpm
19kgm @ 6200 rpm
7. Other Specs
96 Spec
Height (inches) 52
Rear Track (inches) 57.9
Weight 1060kgs
ABS Option
Airbag Option
98 Spec
Height (inches) 52.4
Rear Track (inches) 58.5
Weight 1100kgs
ABS Standard
Airbag Standard
8. Engine Internals (Enlargement of the thrust bearings, Ports, and Valve Seals) were machined by hand until late 96 spec engines. When it came to improving this process further it took to long by hand, so the engineers were replaced by machines.......
Late 96 spec and 98 spec engine internals were machined by specialist machines that produced work that was so good it was impossible to match by hand.....
9. Quarter mile race between the two models with gearbox ratios as described above.... Very Happy
Gear Ratios
96 Spec
1st - 3.230
2nd - 2.105
3rd - 1.458
4th - 1.107
5th - 0.848
Final 4.4
98 spec
1st - 3.230
2nd - 2.105
3rd - 1.458
4th - 1.034
5th - 0.787
Final 4.785
This all means that 1st, 2nd and 3rd gear are shorter in the 98 Spec (due to the closer ration of the Final drive), but 4th and 5th are wider for top speed...... (i.e. 4th and 5th in the 96 Spec are closer for acceleration, which is why the 96 Spec pull the 98 Spec back in 4th gear in the 1/4 mile)
10. Braking test from about 95 mph
96 Spec (non ABS) - 269.7 ft
98 Spec (ABS and larger discs) - 230.3 ft