Pinion angle

rod · 08-29-2021, 04:04 PM

the ? remains, except for you guys with mega $$ and a go pro camera mounted under the car to view movement...how do you know what the pinion is really doing. every car is different even if it is the same car [1 67 Camaro next to a duplicate 67 Camaro]
just because 1 guy says 4 degrees down tells you absolutely nothing. so the pinion is 4 degrees down, down from what, the ground?
the difference is between the pinion and the driveshaft. if the pinion is 4 down and the shaft is 4 down, then you have 8 degrees. [and y7ou could still have 0 to 1 degrees at the tailshaft] loss of hp, and a broken U-Joint in your future.
spring packs are different in stiffness. spring pads are different [most only a bit longer than housing dia. and therefore, offer very little resistance to movement]. shock position [front or rear of axle] shock stiffness [front or rear], tire size and width, tire pressure, launch RPM and launch hp,track traction and probably several more things cause pinion angle to change at launch. and how long will it stay.
all in all, be careful about making general statement about someone elses pinion angle.
Rod in AZ

08-29-2021, 04:04 PM	#6
rod Member Join Date: Dec 2009 Location: Kingman, NW AZ. in the middle of the longest stretch of Route 66 Posts: 315 Likes: 0 Liked 20 Times in 15 Posts	Re: Pinion angle the ? remains, except for you guys with mega $$ and a go pro camera mounted under the car to view movement...how do you know what the pinion is really doing. every car is different even if it is the same car [1 67 Camaro next to a duplicate 67 Camaro] just because 1 guy says 4 degrees down tells you absolutely nothing. so the pinion is 4 degrees down, down from what, the ground? the difference is between the pinion and the driveshaft. if the pinion is 4 down and the shaft is 4 down, then you have 8 degrees. [and y7ou could still have 0 to 1 degrees at the tailshaft] loss of hp, and a broken U-Joint in your future. spring packs are different in stiffness. spring pads are different [most only a bit longer than housing dia. and therefore, offer very little resistance to movement]. shock position [front or rear of axle] shock stiffness [front or rear], tire size and width, tire pressure, launch RPM and launch hp,track traction and probably several more things cause pinion angle to change at launch. and how long will it stay. all in all, be careful about making general statement about someone elses pinion angle. Rod in AZ