Bluelightning

iTrader: (8)

I'm heading off the the dyno tomorrow and have read a few different opinions on the closest 1:1 ratio on the dyno for an F35 transmission. 3rd or 4th?

Cobalt_Daddy

i made my best power in 3rd but try both gears just for the hell of it if ya get more than one pull

soundjunky

iTrader: (4)

3rd gear ratio: 1.18:1

4th gear ratio: 0.89:1

I guess it's really your call.

I'd probably do fourth...

ebristol

iTrader: (4)

1st gear. Right?

1 to 1 to 1...

soundjunky

iTrader: (4)

I can only hope that I just read what was probably the lamest joke ever posted here...




F35/Cobalt-LSJ & F35/HHR-SS: RPO "MC2"

FDR: 4.05
1st gear = 3.38:1
2nd gear = 1.76:1
3rd gear = 1.18:1
4th gear = 0.89:1
5th gear = 0.70:1
Reverse = 3.17:1

F35/Cobalt-LNF: RPO "MU3"

FDR: 3.82
1st gear = 3.38:1
2nd gear = 1.76:1
3rd gear = 1.18:1
4th gear = 0.89:1
5th gear = 0.70:1
Reverse = 3.17:1

Since you want to choose a gear that puts your transmission in the 1:1 ratio (for every single engine revolution, you have one revolution of the drive wheels), you can probably choose either 3rd or fourth - imho, 4th is probably the best choice.

elecblue06

iTrader: (1)

4th might be the closest but it's by .07 it will be much harder on the engine doing a 4th gear pull then a 3rd.. i would only do a 4th gear pull if you're dyno tuning.. for numbers purposes the difference between 3rd and 4th is only a couple of whp

Bluelightning

iTrader: (8)

Ya my tuner said with his experience dynoing he found 4th to load it up too much and was causing knock

yellow dragon

iTrader: (1)

Mine was forth and we all know how that freakin turned out. Giggity giggity!

Bluelightning

iTrader: (8)

Lol well i'll probably try both

elecblue06

iTrader: (1)

its really depending on airflow and temp in the shop really.. but really theres very little difference in numbers so i wouldn't dyno in 4th

Bluelightning

iTrader: (8)

Thanks for the input guys :

yellow dragon

iTrader: (1)

Good luck dude! Your gonna need it to beat me ha ha Just kidding I am guessing your gonna hit your target of 285 whp man!