why do evos dyno in 3rd gear and not 4th?
Aug 31, 2006, 02:30 PM
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why do evos dyno in 3rd gear and not 4th?
Why do Evo's dyno in 3rd gear and not in 4th like all other cars? is our 3rd gear a 1:1 like oter cars 4th?
Supposed to be the longest gear in the powerband.
Aug 31, 2006, 02:57 PM
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Sometimes due to the limited amount of ventilation and cooling for the car on the dyno it is pulled in 3rd gear because it will generate less heat and allows more pulls with more accurate numbers (because there is less heat build up). 4th is a longer pull in a higher gear so there will be alot more heat generated (and lower dyno numbers).
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Aug 31, 2006, 03:05 PM
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what gear you are in does not effect HP readings in anyway. IT DOES effect torque greatly tho do to the gearing. 1:1 ratio is what is is "supposed" to be. What gears do is multiple torque thats why u get a different reading or TQ only is different gears. THe lower the gear the higher the torque output.
Aug 31, 2006, 03:09 PM
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mine has been dynoed at 2 different shops, one dyno jet and the other mustand dyno and both got dynoed in 3rd....im pretty sure its because of the power band in 3rd
Aug 31, 2006, 03:12 PM
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Most shops will do 3rd gear pulls because of the speed required to tun a car to redline in 4th gear, no to mention that with low hp/tq cars a 4th gear pull can take a very very very long time.
You can always request a 4th gear pull, tune. I do as i need to know my AFR's a the end of the 1/4 with close to the correct load.
You can always request a 4th gear pull, tune. I do as i need to know my AFR's a the end of the 1/4 with close to the correct load.
Aug 31, 2006, 03:50 PM
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Originally Posted by boostedwrx
On my 5-speed I was always tuned in 3rd, with my 6-speed its been tuned in 4th. Never asked Shiv why...