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Ross Nicol · 06-30-03, 10:09 AM

Gary
I think your 1st gear ratio is too tall.I have never liked having to rev a motor and slip the clutch but my compounded ratio is on the border I reckon.My gearcalc program tells me that if I rev to 4000 for a standing start,I should be doing 70 km/h.whether I can clutch slip to get away on a racing start will depend on the cars weight and most likely wheel spin.As you know too much of that and you go nowhere.I will be able to confirm for you one way or the other on the 19th and 20th of july as I have 3 races with standing starts.At US$500 per set from Lloyd at RBT, changing that ist gear ratio will be costly.
regards Ross

06-30-03, 10:09 AM	#8 (permalink)
Ross Nicol ross nicol 10 tenths Join Date: Dec 2002 Location: melbourne austr Posts: 1,079 Rep Power: 20	Re: RBT ZF 5 speed gear ratios.... Gary I think your 1st gear ratio is too tall.I have never liked having to rev a motor and slip the clutch but my compounded ratio is on the border I reckon.My gearcalc program tells me that if I rev to 4000 for a standing start,I should be doing 70 km/h.whether I can clutch slip to get away on a racing start will depend on the cars weight and most likely wheel spin.As you know too much of that and you go nowhere.I will be able to confirm for you one way or the other on the 19th and 20th of july as I have 3 races with standing starts.At US$500 per set from Lloyd at RBT, changing that ist gear ratio will be costly. regards Ross