A-Chassis Transmission Gear Ratio Setup

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#1

Hello, i am once again here annoying everyone.
I have issues with my Volkswagen T4 once again.
This time i am not reaching my top speed and my acceleration isnt like in reallife.
I’ve set up the engine, hp, rpm all according to documents.
Now I am here with the gear ratios.

Tune.FinalDrive		= 4.57		 --		[TRANSMISSION CALCULATIONS FOR NERDS]
Tune.Ratios			= {			 --		SPEED [SPS]	 = (Wheel diameter(studs) * math.pi * RPM) / (60 * Gear Ratio * Final Drive * Multiplier)
	--[[ R ]]		6.03		,--		WHEEL TORQUE = Engine Torque * Gear Ratio * Final Drive * Multiplier
	--[[ N ]]		0			,
	--[[ 1 ]]		4.11		,
	--[[ 2 ]]		2.33		,
	--[[ 3 ]]		1.48		,
	--[[ 4 ]]		1.02		,
	--[[ 5 ]]		0.82		,
}

I set this as my gear ratios, it takes AGES to get to speed and plus I won’t get any faster than 70 km/h.
I think there’s some sort of formula for the calculation for A-Chassis

Thanks in advance!

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#2

the higher the number is for a gear ratio, the more RPM it will put in. number 1 should be 8 or somewhere around there, 2 should be 5, 3, 2, and the rest should be kept the same if you want higher speeds the lower the number should be. Also make sure to increase horsepower. I don’t use A-Chassis but I saw something about that

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#3

bump, my issue is still present :slight_smile:

#4

Try increasing the horsepower and lower the final drive, The gears usually need a bit of fiddling with

#5

What you need to do: raise the torque of the engine, then tune the gear ratios to be smaller, since the lower the gear ratio it is, the smaller gear is on the wheel, and if the gear ratio is a decimal, then there’s gear acceleration.

TL;DR - increase torque and lower the gear ratios.

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