Pontiac - Race The next Level

          
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Old 10-19-2012, 02:01 PM
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Default Suspension

www.hrpartsandstuff.com

Has Anybody tryed this stuff? I need to get my low 10 sec car to go straight.

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  #2  
Old 10-19-2012, 02:21 PM
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I was going to use their rear anti roll bar, did research and spoke to people that run it. Everything I found was positive.

I run a Ford 9" with a backbrace and their axle tube attachment would not work for me. Wasn't worth paying that much and still needing to fabricate custom mounts.


Last edited by GTO Dan; 10-19-2012 at 02:26 PM.
  #3  
Old 10-19-2012, 05:33 PM
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check out http://www.spohn.net/#1.

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Old 10-19-2012, 06:00 PM
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Hey Ron i just put a spohn in my car and im finally going to test it out tomorrow.

  #5  
Old 10-19-2012, 07:29 PM
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I installed a hrpartsandstuff.com anti roll bar in my car 6-7 years ago. Worked great. I run radial slicks and the car goes straight as an arrow. It runs high 1.30s 60'


Tom Syron

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Old 10-19-2012, 07:38 PM
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Quote:
Originally Posted by gman005 View Post
Hey Ron i just put a spohn in my car and im finally going to test it out tomorrow.
Keep me updated, I've had a 139-141 60'

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3 Generations of "Beach Boys Racing" !

Everybody knows somthin.
Nobody knows everything !


1st time on a dragstrip, 1964. Flagstart !

"Thanks for the entertainment."

"Real Indians Don't Wear Bowties"
  #7  
Old 10-20-2012, 09:06 AM
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Quote:
Originally Posted by Old Goat Racer View Post
www.hrpartsandstuff.com

Has Anybody tryed this stuff? I need to get my low 10 sec car to go straight.
I have the HRparts rear AS bar on mine. Nice add to the car, and a good quality part. The car pretty much drives itself.

What rear control arms do you have now? Are you preloading the uppers?

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'65 GTO - Pump gas 496" IA2 w/ High Ports, 200-4R trans, 3.73 gears, 275 Hoosier radials, and 3925 lbs.
9.88 @ 134 N/A on Cali 91 octane.

http://www.youtube.com/watch?v=NJEIY5OJ68g
  #8  
Old 10-20-2012, 10:53 AM
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Car & driver weighs about 3000#. It has a set of south side bars with air bags.
I bought the car last year with a 400 engine running 11.40's

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3 Generations of "Beach Boys Racing" !

Everybody knows somthin.
Nobody knows everything !


1st time on a dragstrip, 1964. Flagstart !

"Thanks for the entertainment."

"Real Indians Don't Wear Bowties"
  #9  
Old 10-20-2012, 08:29 PM
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Quote:
Originally Posted by Goat-Racer View Post
I have the HRparts rear AS bar on mine. Nice add to the car, and a good quality part. The car pretty much drives itself.

What rear control arms do you have now? Are you preloading the uppers?

I am very impressed with how well your cars leaves.
So the next time your at the track and see a pair of
13 size boots sticking out from undreneath the back
of your car it's just me admirering your suspenstion. LOL

GT.

  #10  
Old 10-20-2012, 09:50 PM
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Quote:
Originally Posted by blueghoast View Post
I am very impressed with how well your cars leaves.
So the next time your at the track and see a pair of
13 size boots sticking out from undreneath the back
of your car it's just me admirering your suspenstion. LOL

GT.
Thanks! I'm getting used to visitors at the track. It's mostly people coming over to sure that there is not a BB Chevy under the hood!

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Brian Rock

'65 GTO - Pump gas 496" IA2 w/ High Ports, 200-4R trans, 3.73 gears, 275 Hoosier radials, and 3925 lbs.
9.88 @ 134 N/A on Cali 91 octane.

http://www.youtube.com/watch?v=NJEIY5OJ68g
  #11  
Old 10-20-2012, 09:53 PM
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Quote:
Originally Posted by Old Goat Racer View Post
Car & driver weighs about 3000#. It has a set of south side bars with air bags.
I bought the car last year with a 400 engine running 11.40's
Is the car driving to one side off the line, or is it the twist at launch you are trying to correct? Do yo have the chassis braces that connect the upper and lower control arm mounting points at the frame?

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Brian Rock

'65 GTO - Pump gas 496" IA2 w/ High Ports, 200-4R trans, 3.73 gears, 275 Hoosier radials, and 3925 lbs.
9.88 @ 134 N/A on Cali 91 octane.

http://www.youtube.com/watch?v=NJEIY5OJ68g
  #12  
Old 10-21-2012, 10:29 AM
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Not much seat time yet, 10 passes. Had to abort 1 run 100' out heading for the wall, right lane. Some twist at launch also. No chassis braces. Previous owner fabbed his own "anti roll bar".

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3 Generations of "Beach Boys Racing" !

Everybody knows somthin.
Nobody knows everything !


1st time on a dragstrip, 1964. Flagstart !

"Thanks for the entertainment."

"Real Indians Don't Wear Bowties"
  #13  
Old 10-21-2012, 10:56 AM
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This is the car in question, not the black 1
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3 Generations of "Beach Boys Racing" !

Everybody knows somthin.
Nobody knows everything !


1st time on a dragstrip, 1964. Flagstart !

"Thanks for the entertainment."

"Real Indians Don't Wear Bowties"
  #14  
Old 10-21-2012, 11:09 AM
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Ron i got out yesterday the car went straight but when it shifted to 2nd the tire broke loose.

  #15  
Old 10-21-2012, 02:59 PM
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Quote:
Originally Posted by gman005 View Post
Ron i got out yesterday the car went straight but when it shifted to 2nd the tire broke loose.
60' ?

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3 Generations of "Beach Boys Racing" !

Everybody knows somthin.
Nobody knows everything !


1st time on a dragstrip, 1964. Flagstart !

"Thanks for the entertainment."

"Real Indians Don't Wear Bowties"
  #16  
Old 10-21-2012, 11:05 PM
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Being a bit of an unknown car, I would start by taking everything apart in the rear. Make sure that the frame is sound and none of the control arm mounting points are cracked and deflecting. Thank make sure that the lower control arms are the same length. Is there any adjustability with the sway bar right now? Maybee eliminate it all together just to see what happens.
I would also measure the circumference of the rear tires. You never know.

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Brian Rock

'65 GTO - Pump gas 496" IA2 w/ High Ports, 200-4R trans, 3.73 gears, 275 Hoosier radials, and 3925 lbs.
9.88 @ 134 N/A on Cali 91 octane.

http://www.youtube.com/watch?v=NJEIY5OJ68g
  #17  
Old 10-21-2012, 11:24 PM
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Quote:
Originally Posted by Goat-Racer View Post
I have the HRparts rear AS bar on mine. Nice add to the car, and a good quality part. The car pretty much drives itself.

What rear control arms do you have now? Are you preloading the uppers?
Brian - Can you explain how you preloaded your uppers, i.e., how much?

  #18  
Old 10-21-2012, 11:30 PM
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Quote:
Originally Posted by gman005 View Post
Ron i got out yesterday the car went straight but when it shifted to 2nd the tire broke loose.
How many passes did you make. Just the one?

There could be a few things that cause that. Maybe the track had something on it where you shifted, etc.

How'd the car 60', better than previous? Do you have adjustable rear shocks?

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  #19  
Old 10-22-2012, 08:01 AM
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Quote:
Originally Posted by Old Man Taylor View Post
Brian - Can you explain how you preloaded your uppers, i.e., how much?
Well, the reason I asked about preloading the uppers is that some people still try that as a tool to get the car to leave straignt or not twist up. It may help a little, but all it really does is shift the rear end over in the chassis with a triangulated four link like we have. Shortening up the RH upper control arm really just puts everything in a bind if you have stock or urethane bushings. My uppers and lowers have rod ends front and back (and shperical bearings in the housing) so shortening the RH upper does nothing but shft the rear end over. No preload whatsoever. That is the job of the rear anti sway bar.
I do run at least one full turn of preload with the AS bar though. Nothing else.

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Brian Rock

'65 GTO - Pump gas 496" IA2 w/ High Ports, 200-4R trans, 3.73 gears, 275 Hoosier radials, and 3925 lbs.
9.88 @ 134 N/A on Cali 91 octane.

http://www.youtube.com/watch?v=NJEIY5OJ68g
  #20  
Old 10-22-2012, 09:18 AM
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Quote:
Originally Posted by blueghoast View Post
I am very impressed with how well your cars leaves.
So the next time your at the track and see a pair of
13 size boots sticking out from undreneath the back
of your car it's just me admirering your suspenstion. LOL

GT.
Brian - I can't say enough nice things about your car, too. Very impressive.

Just be careful and don't back out over blueghoast when they call your class to the lanes....

K

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