Bracket Talk
Chassis guys step in

This topic can be found at:
https://drr.infopop.cc/eve/forums/a/tpc/f/80760912/m/3857088196

October 27, 2019, 01:19 PM
00 DEAD ON
Chassis guys step in
What causes the back of the car to go to the left in the water box???
94 lumina with a SBC
Thx


Brian Mollison
2009 RaceTech Dragster
2020 Sumerduck Dragway VA Top ET Champion
2017 Sumerduck Top ET & SSS Track Champion
2017 MAC Top ET Track Champion
2009 Sumerduck Dragway Va Top ET & IHRA SSS Track Champion
2008 IHRA Division 1 Top ET Bracket Final Runner-up
2007 Colonial Beach Dragway Top ET Track Champion
October 27, 2019, 01:45 PM
green1
Left front brake caliper not holding.
October 27, 2019, 01:46 PM
green1
Rearend being slightly out of square with the car could do it also.
October 27, 2019, 02:16 PM
Duane1791
Corner Weights


Duane Allen
October 27, 2019, 02:48 PM
00 DEAD ON
quote:
Originally posted by green1:
Left front brake caliper not holding.


Does it even if I don’t use the line lock


Brian Mollison
2009 RaceTech Dragster
2020 Sumerduck Dragway VA Top ET Champion
2017 Sumerduck Top ET & SSS Track Champion
2017 MAC Top ET Track Champion
2009 Sumerduck Dragway Va Top ET & IHRA SSS Track Champion
2008 IHRA Division 1 Top ET Bracket Final Runner-up
2007 Colonial Beach Dragway Top ET Track Champion
October 27, 2019, 02:49 PM
green1
I would agree with above about corner weights.
October 27, 2019, 02:58 PM
00 DEAD ON
LF-706. RF-605
LR-588
RR-543


Brian Mollison
2009 RaceTech Dragster
2020 Sumerduck Dragway VA Top ET Champion
2017 Sumerduck Top ET & SSS Track Champion
2017 MAC Top ET Track Champion
2009 Sumerduck Dragway Va Top ET & IHRA SSS Track Champion
2008 IHRA Division 1 Top ET Bracket Final Runner-up
2007 Colonial Beach Dragway Top ET Track Champion
October 27, 2019, 06:04 PM
Eman
Does it do it everywhere or one track? If the track has grooves worn it can move you sideways.
October 27, 2019, 06:07 PM
00 DEAD ON
quote:
Originally posted by Eman:
Does it do it everywhere or one track? If the track has grooves worn it can move you sideways.


All tracks


Brian Mollison
2009 RaceTech Dragster
2020 Sumerduck Dragway VA Top ET Champion
2017 Sumerduck Top ET & SSS Track Champion
2017 MAC Top ET Track Champion
2009 Sumerduck Dragway Va Top ET & IHRA SSS Track Champion
2008 IHRA Division 1 Top ET Bracket Final Runner-up
2007 Colonial Beach Dragway Top ET Track Champion
October 27, 2019, 07:18 PM
markadams
Get it on a good alignment machine. My guess is the rear end is out of square. As stated in a post above.

4 link car?
October 27, 2019, 08:31 PM
diceman1530
Have you swapped rear tires side to side?


Working for the Weekend!!!!
Fordyce Motorsports
October 27, 2019, 08:36 PM
00 DEAD ON
quote:
Originally posted by diceman1530:
Have you swapped rear tires side to side?


I have checked rollout. They are within a 1/4” of each other


Brian Mollison
2009 RaceTech Dragster
2020 Sumerduck Dragway VA Top ET Champion
2017 Sumerduck Top ET & SSS Track Champion
2017 MAC Top ET Track Champion
2009 Sumerduck Dragway Va Top ET & IHRA SSS Track Champion
2008 IHRA Division 1 Top ET Bracket Final Runner-up
2007 Colonial Beach Dragway Top ET Track Champion
October 27, 2019, 08:43 PM
aaron
Good Article from Bickel.

https://www.onallcylinders.com...-track-temperatures/


All Pontiac. No Juice.
October 28, 2019, 07:49 AM
sst5167
There are so many things that can cause the rear to steer one way or another during a burnout.
I would definitely be checking to make sure your rear end is squared in the chassis first. Second, I would be taking a good look at your corner weights. Especially since you said the back of the car is washing out to the left. Typically, you would want more weight on the RR. This would make sense in your situation. Is this a 4 link car, with anti-roll?


Mike Boehner
October 28, 2019, 02:31 PM
00 DEAD ON
quote:
Originally posted by sst5167:
There are so many things that can cause the rear to steer one way or another during a burnout.
I would definitely be checking to make sure your rear end is squared in the chassis first. Second, I would be taking a good look at your corner weights. Especially since you said the back of the car is washing out to the left. Typically, you would want more weight on the RR. This would make sense in your situation. Is this a 4 link car, with anti-roll?


Yes it’s a 4 link but NO anti-roll


Brian Mollison
2009 RaceTech Dragster
2020 Sumerduck Dragway VA Top ET Champion
2017 Sumerduck Top ET & SSS Track Champion
2017 MAC Top ET Track Champion
2009 Sumerduck Dragway Va Top ET & IHRA SSS Track Champion
2008 IHRA Division 1 Top ET Bracket Final Runner-up
2007 Colonial Beach Dragway Top ET Track Champion
October 28, 2019, 02:46 PM
Kenneth
Shorten the right top bar half a flat.


Abbott Racing Heads
(432) 558-2841
October 28, 2019, 03:15 PM
pauley
quote:
Originally posted by 00 DEAD ON:
LF-706. RF-605
LR-588
RR-543


this does not seem right to me.

I try to get 50# heavy on right rear with no one in the seat. heavy on left rear doesn't seem right.

ep-others may know more about this.
October 28, 2019, 03:34 PM
Curly1
quote:
Originally posted by pauley:
quote:
Originally posted by 00 DEAD ON:
LF-706. RF-605
LR-588
RR-543


this does not seem right to me.

I try to get 50# heavy on right rear with no one in the seat. heavy on left rear doesn't seem right.

ep-others may know more about this.


This. With that much weight on left rear I would say if you are pulling big wheelies it would be going to the right. Scale it get more weight off the left rear tire and it should work better.


https://postimg.cc/gallery/np3zpruo/
"Dunning-Kruger Effect"
-a type of Cognitive bias where people with little expertise or ability assume they have superior expertise or ability. This overestimation occurs as a result of the fact that they do not have enough knowledge to know they don't have enough knowledge.

Before you argue with someone ask yourself, "Is this person mentally mature enough to grasp the concept of a different perspective?" If not there is no point to argue.

4X NE2 CHAMPION. 2020 TDRA NE2 Champion
October 28, 2019, 03:48 PM
00 DEAD ON
This car does NOT pull the wheels. This is scaled with me 235 lbs in the seat race ready


Brian Mollison
2009 RaceTech Dragster
2020 Sumerduck Dragway VA Top ET Champion
2017 Sumerduck Top ET & SSS Track Champion
2017 MAC Top ET Track Champion
2009 Sumerduck Dragway Va Top ET & IHRA SSS Track Champion
2008 IHRA Division 1 Top ET Bracket Final Runner-up
2007 Colonial Beach Dragway Top ET Track Champion
October 28, 2019, 04:00 PM
Curly1
I figured it was not pulling the front wheels or it would go to the right. I think if you move some weight off left rear it will fix it.

That is assuming it is not a problem with track not being level.


https://postimg.cc/gallery/np3zpruo/
"Dunning-Kruger Effect"
-a type of Cognitive bias where people with little expertise or ability assume they have superior expertise or ability. This overestimation occurs as a result of the fact that they do not have enough knowledge to know they don't have enough knowledge.

Before you argue with someone ask yourself, "Is this person mentally mature enough to grasp the concept of a different perspective?" If not there is no point to argue.

4X NE2 CHAMPION. 2020 TDRA NE2 Champion