Suspension & Brakes Springs | Shocks | Handling | Rotors

Pinion angle vs. traction?

Thread Tools
 
Search this Thread
 
Old May 20, 2009 | 10:10 AM
  #1  
Racin96ss's Avatar
Thread Starter
10 Second Club
iTrader: (3)
 
Joined: Jan 2007
Posts: 751
Likes: 0
Default Pinion angle vs. traction?

Last week at the strip I was blowing the tires off on almost every pass unless I preloaded the car on the converter. Anyway I was checking over the suspension last night and saw my pinion angle was set at +1* after my S60 install.

What effect if any does the pinion angle have on traction at all? Does it help drive the tires down at all?
Reply
Old May 20, 2009 | 10:23 AM
  #2  
BMR Tech2's Avatar
LS1Tech Premium Sponsor
iTrader: (5)
 
Joined: Apr 2008
Posts: 4,173
Likes: 19
From: Tampa FL
Default

Originally Posted by Racin96ss
Last week at the strip I was blowing the tires off on almost every pass unless I preloaded the car on the converter. Anyway I was checking over the suspension last night and saw my pinion angle was set at +1* after my S60 install.

What effect if any does the pinion angle have on traction at all? Does it help drive the tires down at all?
Hello, you need to get your pinion angle correct. The main purpose of pinion angle is to get your driveline angle correct to avoid binding and vibration issues. Here is a link to our video on the correct way to set the angle. If you have any questions polease give me a call.

http://www.bmrtvonline.com/video_detail.php?mId=3788
__________________
T.C.
Sales Pro
BMR Suspension
(813) 986-9302

Like us on Facebook!
Reply
Old May 20, 2009 | 10:26 AM
  #3  
Racin96ss's Avatar
Thread Starter
10 Second Club
iTrader: (3)
 
Joined: Jan 2007
Posts: 751
Likes: 0
Default

Originally Posted by BMR Sales
Hello, you need to get your pinion angle correct. The main purpose of pinion angle is to get your driveline angle correct to avoid binding and vibration issues. Here is a link to our video on the correct way to set the angle. If you have any questions polease give me a call.

http://www.bmrtvonline.com/video_detail.php?mId=3788
Thanks, maybe I should have been more clear. I know the pinion angle avoids binding/ vibration but I am wondering more what effects it has on traction at the strip. The angle will be changed from where it currently is.
Reply
Old May 20, 2009 | 11:48 AM
  #4  
jimmyblue's Avatar
Moderator
iTrader: (11)
 
Joined: Mar 2002
Posts: 12,604
Likes: 7
From: East Central Florida
Default

The pinion angle is secondary, the real traction
deal is the torque arm angle (with LCA angle,
it sets the instant center). You need to adjust
this at the nose of the TA, not at the pumpkin.
The pumpkin pinion angle adjustment is just to
get driveline angles matched.

If all you do is crank on the adjuster you'll be
spinning your wheels. Heh.
Reply
Old May 20, 2009 | 11:52 AM
  #5  
BMR Tech2's Avatar
LS1Tech Premium Sponsor
iTrader: (5)
 
Joined: Apr 2008
Posts: 4,173
Likes: 19
From: Tampa FL
Default

Originally Posted by Racin96ss
Thanks, maybe I should have been more clear. I know the pinion angle avoids binding/ vibration but I am wondering more what effects it has on traction at the strip. The angle will be changed from where it currently is.

It has no effect like jimmy said traction is all in the torque arm and lower control arms.
__________________
T.C.
Sales Pro
BMR Suspension
(813) 986-9302

Like us on Facebook!
Reply
Old May 20, 2009 | 01:48 PM
  #6  
Racin96ss's Avatar
Thread Starter
10 Second Club
iTrader: (3)
 
Joined: Jan 2007
Posts: 751
Likes: 0
Default

Well, I have the spohn tunnel mount TA and UMI lcas with the relo bracket. What should the IC be and how do you figure it from the 2 angles?

I currently have no adjustment in the nose if the TA and my lca are on the lowest hole in the rear. My car is lower in the front some with QA1's but the rear is SLP level 2 spring and QA1 rear shock.
Reply
Old May 20, 2009 | 03:02 PM
  #7  
BMR Tech2's Avatar
LS1Tech Premium Sponsor
iTrader: (5)
 
Joined: Apr 2008
Posts: 4,173
Likes: 19
From: Tampa FL
Default

Originally Posted by Racin96ss
Well, I have the spohn tunnel mount TA and UMI lcas with the relo bracket. What should the IC be and how do you figure it from the 2 angles?

I currently have no adjustment in the nose if the TA and my lca are on the lowest hole in the rear. My car is lower in the front some with QA1's but the rear is SLP level 2 spring and QA1 rear shock.
The only way that you can adjust your instant center is with the rear of the lower control arms. Instant center is the intersect point where the lower control arms centerline and torque arm centerline would intersect. If your car hooks good then unloads the tires after you get 30 or 40 feet out move your control arms up a hole.
__________________
T.C.
Sales Pro
BMR Suspension
(813) 986-9302

Like us on Facebook!
Reply
Old May 20, 2009 | 03:38 PM
  #8  
Racin96ss's Avatar
Thread Starter
10 Second Club
iTrader: (3)
 
Joined: Jan 2007
Posts: 751
Likes: 0
Default

Originally Posted by BMR Sales
The only way that you can adjust your instant center is with the rear of the lower control arms. Instant center is the intersect point where the lower control arms centerline and torque arm centerline would intersect. If your car hooks good then unloads the tires after you get 30 or 40 feet out move your control arms up a hole.
thanks for the info. I did a little digging on goggle and found the information I was after.

Thanks.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-1

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-4

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-5

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
Old May 21, 2009 | 10:47 AM
  #9  
want297z's Avatar
On The Tree
iTrader: (7)
 
Joined: Jun 2008
Posts: 187
Likes: 0
From: Smithfield, VA
Default

Can you post the link? I am interested as well.
Reply
Old May 21, 2009 | 11:22 AM
  #10  
Racin96ss's Avatar
Thread Starter
10 Second Club
iTrader: (3)
 
Joined: Jan 2007
Posts: 751
Likes: 0
Default

Originally Posted by want297z
Can you post the link? I am interested as well.

Sure, here you go.

https://ls1tech.com/forums/drag-raci...-launch-4.html
Reply




All times are GMT -5. The time now is 12:25 PM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-4
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-5
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-6
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-7
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-8
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-9
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE