Suspension and Chassis Questions about your suspension? Need chassis advice?

Bumpsteer kit

Thread Tools
 
Search this Thread
 
Old 12-03-2009, 05:40 PM
  #1  
Member

Thread Starter
 
lonesomeloser's Avatar
 
Join Date: Dec 2008
Location: Middletown, MD
Posts: 378
Received 2 Likes on 2 Posts
Car: 1983 Z28
Engine: 305
Transmission: 700R4
Bumpsteer kit

How low can a car be dropped before it would benefit from one? Or could it benefit at stock height?
Old 12-03-2009, 05:44 PM
  #2  
Banned
iTrader: (12)
 
Stephen's Avatar
 
Join Date: Jul 1999
Location: Bertram (outside Austin), TX
Posts: 12,212
Likes: 0
Received 10 Likes on 10 Posts
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: Bumpsteer kit

Mine is dropped 1.75" up front & I don't feel the need for one, on good roads.
Old 12-03-2009, 08:00 PM
  #3  
Senior Member

 
1988-305-tbi's Avatar
 
Join Date: Mar 2004
Location: SoCal "Riverside"
Posts: 550
Likes: 0
Received 0 Likes on 0 Posts
Re: Bumpsteer kit

i think your ok untill about 2" stay away from the spohn bump kit, mine had way to much slop in it, and actually made the steering loose
Old 12-05-2009, 03:21 PM
  #4  
Supreme Member
TGO - 10 Year Member
iTrader: (10)
 
blacksunshine'91's Avatar
 
Join Date: Sep 2000
Location: Moorpark, CA
Posts: 2,432
Likes: 0
Received 166 Likes on 120 Posts
Car: '91 GTA, '92 T/A Convertible
Engine: GTA: 350 w/Vortec heads, T/A: 305
Transmission: Pro-built 700R4
Axle/Gears: GTA: 3.27, T/A: 2.73
Re: Bumpsteer kit

Don't know how far until you "need" one, but I felt a huge difference in steering control after installing mine. Before I installed mine it was fine on smooth roads, but on anything with any bumps, it was an adventure. I have the Baer kit installed on mine.
Old 12-05-2009, 04:25 PM
  #5  
Senior Member

iTrader: (2)
 
arrowcamaro's Avatar
 
Join Date: May 2002
Location: Chester, VA
Posts: 731
Likes: 0
Received 0 Likes on 0 Posts
Car: '88 GTA
Engine: L-98
Transmission: T-56
Re: Bumpsteer kit

Originally Posted by Stephen
Mine is dropped 1.75" up front & I don't feel the need for one, on good roads.
Good thinking. Talk about how you don't need a BUMPsteer kit because the car is fine on good roads. That's a classic.

Old 12-05-2009, 05:00 PM
  #6  
Supreme Member
TGO - 10 Year Member
iTrader: (15)
 
//<86TA>\\'s Avatar
 
Join Date: Aug 2006
Location: Central NJ
Posts: 12,666
Likes: 0
Received 50 Likes on 48 Posts
Car: 86 Trans Am, 92 Firebird
Engine: 408 sbc, 3.1L of raw power
Transmission: TKO600, T5
Axle/Gears: Moser 9", 3:70 trutac, 3:23 torsion
Re: Bumpsteer kit

I recently put together a set for my car and it did make a difference. The alignment is still a little out though. Probably wont get that fixed until spring.
Old 12-05-2009, 05:20 PM
  #7  
Guest
Guest
 
Posts: n/a
Re: Bumpsteer kit

Ride height really has nothing to do with it.

The tierod swing has to match the arch of the A-arm swing. This can vary simply from an aggressive alignment on a factory ride height.

The more caster gain (stagnant and dynamic) the more the need to lower the outer tierod so that it marries the a-arm arch at mid articulation to allow for least change through travel.

Dean
Old 12-05-2009, 05:25 PM
  #8  
Guest
Guest
 
Posts: n/a
Re: Bumpsteer kit

The next question is, "well, how much does it need adjusted?"

Have any of you that installed this bump your car to find out? Or are you just putting this on there and hoping for the best?

You need to have the car bumped to find out, you may have gone for 1/8" in to 1/4" in----to---- 1/8in to 1/16 out for all any of you know unless you have gauged it.
Old 12-05-2009, 05:38 PM
  #9  
Supreme Member
TGO - 10 Year Member
iTrader: (15)
 
//<86TA>\\'s Avatar
 
Join Date: Aug 2006
Location: Central NJ
Posts: 12,666
Likes: 0
Received 50 Likes on 48 Posts
Car: 86 Trans Am, 92 Firebird
Engine: 408 sbc, 3.1L of raw power
Transmission: TKO600, T5
Axle/Gears: Moser 9", 3:70 trutac, 3:23 torsion
Re: Bumpsteer kit

honestly, mine was "eyeballed". Took some measurements, and got a baseline, but i have to get everything setup properly later, probably in the spring when the car gets out again.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
1Aauto
Sponsored Vendors
1
01-15-2016 06:26 AM
1Aauto
Sponsored Vendors
1
01-15-2016 06:25 AM
1Aauto
Sponsored Vendors
0
09-10-2015 02:02 PM
1Aauto
Sponsored Vendors
0
09-02-2015 01:35 PM



Quick Reply: Bumpsteer kit



All times are GMT -5. The time now is 08:18 AM.