Gearing to 167 mph?
Discussion
So what RPM Benno? I reckon we have around 83-84 @ 3,000. That makes exactly 167 @ 6,000 which is a little high. I thought 5,500 is about as high as you want to go with the Rover V8
Which leads me on - if the Griff was higher geared would it pull 180 or so? I realise it's not the most aerodynamic car and you'd need to be a bit mad to try it but it just might be capable of more.
Which leads me on - if the Griff was higher geared would it pull 180 or so? I realise it's not the most aerodynamic car and you'd need to be a bit mad to try it but it just might be capable of more.
shpub said:
donatien said: So what RPM Benno? I reckon we have around 83-84 @ 3,000. That makes exactly 167 @ 6,000 which is a little high. I thought 5,500 is about as high as you want to go with the Rover V8
Depends on the Rover V8. the 500s have a 6000 red line.
Yes but your bible points out peak power @ 5500. In which case the claimed top speed is past this.
Not the first time a car hits the max by going over the power band of course, I was just curious.
Well my whole point was that if you "nominate" a top speed then is would make sense for that to co-incide with peak power whilst in top. The Griff seems a bit short-geared to me, which of course in some way accounts for its' blistering acceleration. No complaints there of course 
I've never had it that far but it seems that 167 would be about 6,000 rpm. 500 rpm over peak power. As Steve Heath has said the car will accelerate if the engine is still delivering enough power to do so.
The question then really is maybe, how high could you raise the gearing? Would a Griff touch 180 with a different final drive?
For comparison how are the Cerberas & Tuscans geared. Assuming you could pull peak power in 5th what would that equate to in road speed?
Dave
I've never had it that far but it seems that 167 would be about 6,000 rpm. 500 rpm over peak power. As Steve Heath has said the car will accelerate if the engine is still delivering enough power to do so.
The question then really is maybe, how high could you raise the gearing? Would a Griff touch 180 with a different final drive?
For comparison how are the Cerberas & Tuscans geared. Assuming you could pull peak power in 5th what would that equate to in road speed?
Dave
But obviously I needed a long 'test track' 
It also felt pretty stable at the time.Right, my initial posting was about the "ultimate" top speed of the Griff, and whether it had a bit more with higher gearing.
From the postings it seems that many Griffs have gone to the limit in 5th - which would equate to around 165+
With higher gearing and a lot more courage what could a Griff reach?
From the postings it seems that many Griffs have gone to the limit in 5th - which would equate to around 165+
With higher gearing and a lot more courage what could a Griff reach?
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