2007 Jaguar XK8 4.2 Coupe gear ratio calculator

With 2007 Jaguar XK8 4.2 Coupe Gear Ratio Calculator you can see the theoretical top speeds in all gears. You can change tire dimensions to calculate the effect on top speed and gearing. It will help you to find the best gear ratios for your racing car and to understand when it is the best time to change a gear.

Maximum Power RPM:		Revolutions per minute when reaching the top of the power curve.
			Width	Profile	Wheel diameter
Tire Diameter [mm]:		OR
	Numbers of teeth		Gear Ratio
Final Drive Ratio:	x	OR
1st Gear Ratio:	x	OR
2nd Gear Ratio:	x	OR
3rd Gear Ratio:	x	OR
4th Gear Ratio:	x	OR
5th Gear Ratio:	x	OR
6th Gear Ratio:	x	OR
Speed in:
https://cargister.websys.sk/calculator-gear-ratio?rpm=6000&final_ratio_teeths[]=&final_ratio_teeths[]=&fdr=2.1&diameter=676.8&ratio[1]=4.2&ratio[2]=2.3&ratio[3]=1.5&ratio[4]=1.1&ratio[5]=0.9&ratio[6]=0.7&speed_in=kmh&width=245&profile=50&wheel_diameter=17&teeths[1][]=&teeths[2][]=&teeths[1][]=&teeths[2][]=&teeths[1][]=&teeths[2][]=&teeths[1][]=&teeths[2][]=&teeths[1][]=&teeths[2][]=&teeths[1][]=&teeths[2][]=

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Gear shift	Difference after shifting	RPM after shifting
from 1st Gear to 2nd Gear	2714	3286
from 2nd Gear to 3rd Gear	2087	3913
from 3rd Gear to 4th Gear	1600	4400
from 4th Gear to 5th Gear	1091	4909
from 5th Gear to 6th Gear	1333	4667

kmh / RPM	1000	2000	3000	4000	5000	6000
1st Gear	14.5	28.9	43.4	57.9	72.3	86.8
2nd Gear	26.4	52.8	79.2	105.7	132.1	158.5
3rd Gear	40.5	81	121.5	162	202.5	243
4th Gear	55.2	110.5	165.7	220.9	276.1	331.4
5th Gear	67.5	135	202.5	270	337.5	405
6th Gear	86.8	173.6	260.4	347.1	433.9	520.7

This calculator is completely based on mathematical formulas to be useful to you. Try the Transmission Gear Ratio Calculator now.