Should BMR make an axle tube brace for the S197?

[skwerl]

If your trans is aimed down 2.5 and your pinion is aimed down 1.5 then your pinion is aimed too high. You want the pinion pointing lower than your trans, not higher. Pinion would be down 4 degrees to have a net -1.5 pinion angle.

 

[luillo]

If your trans is aimed down 2.5 and your pinion is aimed down 1.5 then your pinion is aimed too high. You want the pinion pointing lower than your trans, not higher. Pinion would be down 4 degrees to have a net -1.5 pinion angle.

That is why I will have to wait for the video because that confuse me a lot. If I put a analog angle finder in the same plane with the crank the pinion is aiming down towards the trans which in the angle finder shows as positive 1.5, crank negative 2.5.

I made a drawing to explain better what i have and what i thought it supposed to be.

What i have in the car.
https://www.facebook.com/photo.php?fbid=686101961455623&set=pcb.686102028122283&type=1&theater

What i thought it supposed to be.
https://www.facebook.com/photo.php?fbid=686101994788953&set=pcb.686102028122283&type=1&theater

 

[wbt]

You will have to host the pics somewhere other than Facebook for most of us to see. Basically what you want to do is:

1. Place an angle finder on the crank damper and note the degree.
2. Use a straight edge on the back of the pinion flange and notate the degree.
3. Subtract the values and this is your pinion angle in relation to the center line of the trans/crank.

For example, if you see -2.5* at the crank and see -1.5* at the pinion, your pinion angle is set to +1*. You will want the pinon to be set to -4.5* to achieve an overall -2* pinion angle.

For you application -2* to -3* is what I would shoot for.

Based on what you posted you are +3* on your pinion angle which is just opposite of what you want. The rear end housing should point down in relation to the transmission, not up. Hope that helps.

 

[BMR Tech]

This is why I am making a video.

I am not going to get into a huge discussion about it, but it is as easy as:

Looking FROM the driver side, towards pass side;

Measure the trans angle. Crank, Trans, etc - whatever.

Simply shuffle over to the pinion....and the needle needs to move XXXX places to the right (if you want a -2 angle...then two places - DONE), on the angle finder. (angle finder roatates counterclockwise)

For example - if you read -2.0 (left of 0 2.0 degrees) on the trans/crank.......you simply set the pinion to 0 if you want -2 degree "pinion angle"

If you want a -1 degree pinion angle, then you set the pinion to -1.

If you want a +1 degree pinion angle, then you have to pass 0....then go to the right of 0 to +3.

It is so easy, it gives me a headache. lol

 

[BMR Tech]

Again, if you want a -2 degree pinion angle, simply set the pinion flange to where it is TWO PLACES to the right, on the gauge, in comparison to the trans/crank. Don't think about math......just two lines/places.

If you want a -1 degree pinion angle, then set the pinion ONE place to the right, on the gauge, in comparison to the trans/crank.

Yes, it is that basic.

 

[fdjizm]

Dat big brain tho

 

[JEWC_Motorsports]

So where is the correct place to measure from?

 

[scramblr]

So where is the correct place to measure from?

 

[luillo]

This is why I am making a video.

I am not going to get into a huge discussion about it, but it is as easy as:

Looking FROM the driver side, towards pass side;

Measure the trans angle. Crank, Trans, etc - whatever.

Simply shuffle over to the pinion....and the needle needs to move XXXX places to the right (if you want a -2 angle...then two places - DONE), on the angle finder. (angle finder roatates counterclockwise)

For example - if you read -2.0 (left of 0 2.0 degrees) on the trans/crank.......you simply set the pinion to 0 if you want -2 degree "pinion angle"

If you want a -1 degree pinion angle, then you set the pinion to -1.

If you want a +1 degree pinion angle, then you have to pass 0....then go to the right of 0 to +3.

It is so easy, it gives me a headache. lol

I know is easy, i got the whole thing but i have been in about all the angles possible. I think my DS is bad or the U-joints have a problem because if i am not wrong i had the pinion aiming down like you guys are saying and in 45-65 it made a clunking noise on deceleration at normal driving so i move it up and is good but high speed 80-90 it vibrates. i also check DS run out and the front comes to .10 and at the back is .05

here is what i was under the impression it suppose to be:

Parallel without preload:
http://www.cardomain.com/ridepost/6302683/19047895/2011-ford-mustang/
Here are my Angles:
http://www.cardomain.com/ridepost/6302682/19047894/2011-ford-mustang/

 

[JEWC_Motorsports]

Alex i need to install my uca/uca mount and driveshaft. Need to know the proper place as I dont want to do it more than once lol.

 

[Riptide]

Oh c'mon man. Do it a few times. You'll get REALLY good at it.

 

[JEWC_Motorsports]

If I had a garage no problem. Doing it in the dirt is already not going to be fun.

 

[skwerl]

If I had a garage no problem. Doing it in the dirt is already not going to be fun.

Go to Home Depot and buy a sheet of plywood. Slide it under the car so you can keep your ass out of the dirt and have a solid, flat surface to work on. Tarps create more issues than they solve.

 

[CPRsm]

Dat big brain tho

You still understand right? Once you grasp it it's pretty easy.

So where is the correct place to measure from?

You'll have the driveshaft out. Measure from the face of the companion flange and circumvent the bullshit.
And use a big pice of cardboard if you can. You slide real easy on it without splinters!

 

[JEWC_Motorsports]

Ahhh good thinking Dustin. I will make it happen next weekend.

 

[fdjizm]

You still understand right? Once you grasp it it's pretty easy.



You'll have the driveshaft out. Measure from the face of the companion flange and circumvent the bullshit.
And use a big pice of cardboard if you can. You slide real easy on it without splinters!

Yea I'm good, after we talked on the phone that day it was all good

 

[luillo]

I moved one more degree up and is a lot better I still have vibration around 85-90 but is a lot less. Funny thing is that I did it in my garage not in a lift and just guessing. If my guess is right I should have crank -2.4 and pinion flange +1.4.
For a 1 degree pinion angle. I am not using any math just chasing these problem and seams to work a lot.

When the video get posted I will compare to what I am doing on the car.

 

[2011/5.0]

lets see that video Kelley im at left 4 at crank and left 2 at back of pinion flange so if I hear you correctly It moved -2 so im spot on

 

[luillo]

lets see that video Kelley im at left 4 at crank and left 2 at back of pinion flange so if I hear you correctly It moved -2 so im spot on

Putted that way I should be close too. I got left of zero 2.4 crank and left of zero 1.4 on the pinion flange which It should be -1 pinion angle.

 

[Whiskey11]

Shit, with all this hubbub about pinion angle, I'm GLAD I opted for a Torque Arm to keep this headache at bay.