FFR Bump Steer Kit Question (first post) - FFCars.com : Factory Five Racing Discussion Forum
FFCars.com Forums Advertisers Build Sites FFR FAQ Gallery

Go Back   FFCars.com : Factory Five Racing Discussion Forum > Factory Five Racing Roadsters > Factory Five Roadsters
Register Garage iTrader FAQ Members List Calendar Mark Forums Read Auto EscrowAuto Loans


FFcars.com is the premier factory five cars Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 03-25-2011, 02:48 AM   #1 (permalink)
Senior Member
 
daltmcintyre's Avatar
 
Join Date: Dec 2009
Location: Lexington, SC
Posts: 371
FFR Bump Steer Kit Question (first post)

I bought the FFR bump steer kit a couple of weeks ago but I can’t find a lot of info about it on the forum. Does anybody have any opinions about the kit? I notice that some of the other kits have the “spacers” used to adjust the angle of the tie rod, however the FFR kit does not have the spacers. Can I just by 5/8” I.D. spacers from Fastenal? Is there a certain grade I need to get? Any opinions, thoughts or recommendations are greatly appreciated.

Oh by the way, this is my first post and I am super-pumped because my kit will be ready four weeks from Saturday (4/23). Let the fun begin.

Joey
daltmcintyre is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 03-25-2011, 03:00 AM   #2 (permalink)
New
 
dewatson's Avatar
 
Join Date: Feb 2006
Location: Elbert, Colorado
Posts: 821
Joey - don't mean this to be a dirty trick - as I didn't use the FF bump steer kit I can't offer any help - but, I did want to say: great to see the first post and know it won't be the last. This is a great place to help you find lots of ways to solve problems and help spend your $$$. Darrel
__________________
"Teach a man to fish and he'll eat for life. Give him someone else's fish an he'll vote for you."
dewatson is offline   Reply With Quote Quick reply to this message
Old 03-25-2011, 04:23 AM   #3 (permalink)
Lay posi
FFCars Craftsman
 
wibby's Avatar
 
Join Date: Oct 2005
Location: St. Louis, MO
Posts: 1,067
I can't speak for your setup, but on mine (94 spindles, donor power steering, SAI mod) a bump steer kit would not solve bump steer. What did help is using the FFR rack extensions and lowering the rack with offset bushings.

Wibby
__________________
306, AFR 185 heads, Kenne Bell Supercharged, power steering, power brakes
wibby is offline   Reply With Quote Quick reply to this message
Old 03-25-2011, 11:29 AM   #4 (permalink)
Senior Member
 
Join Date: Feb 2004
Location: winter springs fl
Posts: 114
Smile

JOEY

I not familiar with the bump steer kit you have but I used the one from steeda and it uses the sleeves. I think the trick is really study the full movement of the linkage all thru the travel,, what I mean is slack off the front spring adjusters and check your angles from full drop to full compression at the stops. I used a trans jack and a lift but I know everyone doesn;t have access to this so if you use a floor jack for your movement check you will be good. I would start with your steering rack and shim it until it is even with the ends of the spindle where the tie rods connect and then work with your angles on your tie rods through there travel,,,, takes some time but it worked out really good for me.
Good luck with the build and you will have a blast doing it !!

JIM
jesmeltzer is offline   Reply With Quote Quick reply to this message
Old 03-25-2011, 04:37 PM   #5 (permalink)
Official OLD GUY
FFCars Master Craftsman
 
Big Blocker's Avatar
 
Join Date: Jan 2004
Location: Lost Wages, Nevada
Posts: 2,445
Wink Bump Steer

joey,

Since you don't appear to have your kit yet, I question the purchase of a bump steer kit. With that said, we need to know more about your selections for steering rack, spindles, control arms and whether-or-not you also ordered the sai mod. If yours is one of the newer MkIV kits, you shouldn't need the SAI mod, that issue has been pretty much engineered out of the front steering/suspension geometry.

Bump steer is the effect you get when one tire drops into a hole or rises over a bump in the road and toe-in changes, causing the car to react in the direction of the toe change due to different angles of the tie-rod(s) and the lower control arm(s).

If the angle is exact for the tie rod and the lower control arm and the "pivot point" is exactly the same (tie rod connection to the rack and the lower control arm bushings), you should have (in theory) no bump steer, as the arm and the tie rod would be traveling in the same arc.

When all of the above is not "exact', the tie rod and the lower contro; arm travel different arcs and you get toe changes.

The bump-steer kits are designed to allow you to "adjust" the angle of the tie rod to be as close as possible to the angle of the LCA but do not adjust for the pivot points. The idea is; get it as close as possible and it (bump steer) will be almost un-noticable. There are other factors involved here but that is the basics of it.

Lowering the rack will get most of it out and the BS kit will allow for fine tuning. Rack extensions move the pivot points out to better match the LCA bushing centerline, once again trying to make these two steering/suspension parts move as one at the same angles.

HTH

Doc
__________________
little block, BIG BLOCK . . .
HUMMMMMMM?
FFR3712K (POPSDRM) in Lost Wages, NV.
MKII, 5.0, "Tubular" GT40-EFI, E-303, T5, 17" 5-Lug Chrome Cobra "R's", Nitto 275/315's, PBR 4 wheel Disks, Full Tubular/Coil-Over suspension, 20:1 Flaming River, 3.73's, 3-Link, Drop Butt mod, Dash forward mod, Custom Footbox Air vents, Custom Turn Signals, Custom 4-into-4 headers, Non-Donor build, Ford Royal Blue Pearl w/ Arctic White stripes.
Big Blocker is offline   Reply With Quote Quick reply to this message
Old 03-25-2011, 11:41 PM   #6 (permalink)
Senior Member
 
daltmcintyre's Avatar
 
Join Date: Dec 2009
Location: Lexington, SC
Posts: 371
i guess it would help to provide some more info. i ordered a base kit with FFR lower control arms. i am going to use SN95 spindles (94-95 model) with a manual rack. my plans are to use the offset bushings (breeze), SAI mod (whitby) and bump steer kit (ffr).

the majority of the post that i have read lean toward these mods for the best setup.

i had a gift card to ffr that covered the cost of the bump steer kit so i thought i would go ahead and get it while i wait on the kit. i plan to pick a SAI kit at the auto-fair in a couple of weeks.

joey
daltmcintyre is offline   Reply With Quote Quick reply to this message
Old 03-26-2011, 12:02 AM   #7 (permalink)
4.6 SOHC T3650 Telorvek
FFCars Craftsman
 
d42davis's Avatar
 
Join Date: Jun 2008
Location: Windsor, CT
Posts: 725
You should NOT need the SAI kit with a MK 4 - the SAI changes have been incorporated into the Mk 4 hardware.
DD
d42davis is offline   Reply With Quote Quick reply to this message
Old 03-26-2011, 12:10 AM   #8 (permalink)
Unconventional Builder
 
JoeE's Avatar
 
Join Date: Jun 2007
Location: Hatboro SE Pennsylvania
Posts: 3,535
Garage
I sold the FFR bump steer kit that I had b/c I didn't like the idea of drilling out the spindle holes to accommodate the stud/bolt. I bought Forte's model and they provide a sleeve to fit right in the spindle no expansion necessary.

The offset rack bushings I believe were to fix pre Mk3 rack setup. You may even want to hold off on the SAI mod because the Mk 4 has a redesigned setup.

Stop spending $$ for now we will help you with that later. Get ready to build what you got coming adding an SAI mod is easy later b/c you aren't going to torque your front suspension down for a while.
__________________
Donor $2,500 -Kit $18,000 -Extra "needs stuff" $100's -$1,000's
300+hp tagged race car PRICELESS !! Best ET 12.848 @ 108.37 N/A
Mk III #5294 -Purchased 1/08, Tagged 4/14/12
302 T5, 3-link, 3.55 posi, 13" Cobra brakes, SAI, UTC exhaust No More EFI: Now Quick Fuel 650
YouTube Videos: http://www.youtube.com/user/joeembery#p/u
My Pics:
http://s207.photobucket.com/user/Joe...?sort=6&page=1
JoeE is offline   Reply With Quote Quick reply to this message
Old 03-26-2011, 12:12 AM   #9 (permalink)
Lay posi
FFCars Craftsman
 
wibby's Avatar
 
Join Date: Oct 2005
Location: St. Louis, MO
Posts: 1,067
Quote:
Originally Posted by wibby View Post
I can't speak for your setup, but on mine (94 spindles, donor power steering, SAI mod) a bump steer kit would not solve bump steer. What did help is using the FFR rack extensions and lowering the rack with offset bushings.

Wibby
I forgot to mention that I have a MKIII.

Good luck on your MKIV. FFR has made some nice improvements along the way.

Wibby
__________________
306, AFR 185 heads, Kenne Bell Supercharged, power steering, power brakes
wibby is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Bookmarks

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the FFCars.com : Factory Five Racing Discussion Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT. The time now is 10:09 AM.




The Tire Rack

Intercity Lines

Ford Cobra Engines

Team 3 Wheels:

Midwest Classic Insurance:

FACTORY FIVE ROADSTERS:

ROADSTERS
· Roadster Forum
· 4.6L Roadsters
· Big Block Roadsters
· Non-Ford Powered Roadsters

FACTORY FIVE COUPE/SPYDER:

TYPE 65 COUPES
SPYDER GT

FACTORY FIVE GTM:

GTM SUPERCAR
· GTM Forum
· GTM Classifieds
· GTM FAQ

FACTORY FIVE '33 HOT ROD:

· '33 Hot Rod Forum
· Hot Rod Classifieds

FACTORY FIVE COMPETITION:

· Challenge Cars
· Road Racing
· Autocross / Pro Solo
· Drag Racing

GENERAL FACTORY FIVE DISCUSSIONS:

· Free Photo Hosting
· Tires / Wheels
· Tops & Tonneaus
· Upholstery
· Gallery
· Audio / Electronics
· Car Care
· Insurance / Registration
· Brakes / Suspension
· Ford Big Block Tech
· Ford Small Block Tech
· Forced Induction / NOS
· Fuel Injection Tech

EVENTS:

· National Events
· Southwest
· Northwest
· NorCal
· SoCal
· Southcentral
· Midwest
· Southeast
· Northeast
· Canada

OFF TOPIC:

· Off Topic Discussions
· Other Car Discussions
· Smyth Performance G3F
· Automotive Photography Discussions

CLASSIFIEDS:

· Cobras and Replicas For Sale / Wanted
· Parts For Sale / Wanted
· Donor Cars For Sale / Wanted
· Other Vehicles For Sale / Wanted

NEWS / HELP:

· FFCars.com News
· Forum Help / Test

 


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.5.1
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.


© 2002 - 2010 FFCars.com


 

Welcome to FFCars! The representations expressed are the representations and opinions of the FFCars.com forum members and do not necessarily reflect the opinions and viewpoints of the site owners, moderators, Factory Five Racing, Inc. or Ford Motor Company. This website has been planned and developed by FFCars.com and its forum members and should not be construed as being endorsed by Factory Five Racing, Inc. or Ford Motor Company for any purpose. "FFR", "Factory Five", "Factory Five Racing", and the Factory Five Racing logo are registered trademarks of Factory Five Racing, Inc. FFCars.com forum members agree not to post any copyrighted material unless the copyrighted material is owned by you. Although we do not and cannot review the messages posted and are not responsible for the content of any of these messages, we reserve the right to delete any message for any reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold us harmless with respect to any claim based upon transmission of your message(s). Thank you for visiting the FFCars.com Forum dedicated to Factory Five.