Do you truck guys dyno in 2nd or 3rd?
#1
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Do you truck guys dyno in 2nd or 3rd?
I just installed a cam and made my own 4" CAI for my truck and am going to add headers when they show up. The first time I dynoed my truck I had to do it in second because I didn't know there was a MPH limiter. Only got 260rw or so in second with Intake and Cat back. Now I have completely custom tuned it and want to get after cam results and then after exhaust results. I have always dynoed in the 1:1 gear. I was reading that with 3.42's and 31.7" tire it is a bad idea to use 1:1 due to tire speed. What do you all do? This is my first truck and don't want to jack it up. I really do want to use 3rd though.
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I have a 3.42 and 31.7" tall tires.
I didn't think about the drive shaft. I am used to Vette's and what not where all you are hitting is in the 130-140's and the car is designed for it.
I was going to do a second gear pull to get an apples to apples but wanted a 1:1 run to get the real numbers. The gear reduction seems to scew the numbers to the lower side.
I didn't think about the drive shaft. I am used to Vette's and what not where all you are hitting is in the 130-140's and the car is designed for it.
I was going to do a second gear pull to get an apples to apples but wanted a 1:1 run to get the real numbers. The gear reduction seems to scew the numbers to the lower side.
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#8
Id do 2 gear, that would give you a better idea of what you gained, iv never really cared that much about peak dyno numbers I just like to see how the power curve looks to help you along with your build. Im always afraid of my driveshaft coming apart.