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-   -   some bumpsteer issues.. i need a kit. (https://www.rx7club.com/3rd-generation-specific-1993-2002-16/some-bumpsteer-issues-i-need-kit-856641/)

bewtew 08-10-09 01:37 PM

some bumpsteer issues.. i need a kit.
 
i'm having some bumpsteer issues and i was wondering where i can get a kit to fix this problem.. thanks.

- Carlo

gracer7-rx7 08-10-09 03:06 PM

More details on your setup please.

bewtew 08-10-09 03:15 PM

what do you mean? its a 20b on stock subframe, stock steering rack, lowered the sway bar about 1", coilovers, 19" wheels, lowered.

bewtew 08-10-09 03:51 PM

gordon, i dont need a subframe kit.. im just looking for the bump steer kit.

i know pettit and hinson sale one for $150 but i was wondering if there was others

gracer7-rx7 08-10-09 04:04 PM


Originally Posted by bewtew (Post 9416584)
what do you mean? its a 20b on stock subframe, stock steering rack, lowered the sway bar about 1", coilovers, 19" wheels, lowered.

So if you have the stock subframe in the stock location and stock, unmodified steering rack in the stock location, then none of the stock steering geometry has changed. Therefore you shouldn't have any bumpsteer.

How exactly did you determine you have bumpsteer?

Can you describe the problem?

bewtew 08-10-09 04:04 PM

ill check them out thanks

pomanferrari 08-10-09 04:16 PM


Originally Posted by gracer7-rx7 (Post 9416679)
So if you have the stock subframe in the stock location and stock, unmodified steering rack in the stock location, then none of the stock steering geometry has changed. Therefore you shouldn't have any bumpsteer.

How exactly did you determine you have bumpsteer?

I think he has it lowered so much that whenever he hits a bump he's in the next lane. On the FD, you can't lower more than say an inch max before you run into this problem. I'm only lower than stock by something like 3/4 inch. Any lower and I get all kinds of issues on bumps.

pomanferrari 08-10-09 04:18 PM


Originally Posted by gmonsen (Post 9416671)
I have some concerns over Hinson from a business perspective.

Gordon

The original bumpsteer kit had an extension out at the knuckle of the hub. The new hinson kit has an extension from the rack end so that seemed to be better. However, the kit looked too homemade to me. Is this the "business perspective" you're referring to?

habu2 08-10-09 04:37 PM


Originally Posted by pomanferrari (Post 9416696)
The original bumpsteer kit had an extension out at the knuckle of the hub. The new hinson kit has an extension from the rack end so that seemed to be better. However, the kit looked too homemade to me. Is this the "business perspective" you're referring to?

Before you invest in the Hinson inner bumpsteer correction you need to read this thread and be sure to watch the video in post #4

str8ryd 08-10-09 08:06 PM

I'm also wondering how you have "bumpsteer"? You sure you're running a stock subframe? If you are post pictures, I'd like to see the setup.

bewtew 08-10-09 08:49 PM

i'll take some pictures tomorrow and show u guys what im talking about..

purerx7 08-10-09 08:54 PM


Originally Posted by gmonsen (Post 9416671)
I have some concerns over Hinson from a business perspective.

Gordon

+1, their reputation has grossly diminished over at v8rx7forum, I would be very weary.

bewtew 08-10-09 10:02 PM

i wasn't going to get anything from them anyways :). i was just wanted some different options..

rx7tt20b 08-11-09 05:36 AM

The kits that i know of are - top speedhttp://group5motorsport.com/nagisa_a.../i-129212.aspx

megan racing- http://www.meganracing.com/products/...=694&catid=108

And the hinson kit - http://www.hinsonsupercars.com/p-740...steer-kit.aspx

On my 20b fd im using the hinson kit.

rx7tt20b 08-11-09 05:47 AM


Originally Posted by gmonsen (Post 9416644)
I have the Rx7specialties subframe with bumpsteer kit. No bumpsteer. The geometry at the hub is the same as stock. About $1500-2000 all in.

Gordon

Gordon is the setup that your using, the modified wheel spindles or adjustable tie rod ends?

ptrhahn 08-11-09 07:50 AM

Wouldn't any "bumpsteer kit" have to match whatever subframe you're using in order to work anyway, unless they are adjustable?

gracer7-rx7 08-11-09 10:00 AM


Originally Posted by ptrhahn (Post 9418233)
wouldn't any "bumpsteer kit" have to match whatever subframe you're using in order to work anyway, unless they are adjustable?


yes. :)

ptrhahn 08-11-09 10:09 AM


Originally Posted by gmonsen (Post 9418426)
Mine has adjustable tie rod ends.

Gordon


Right, but I think you'd need to be able to adjust the height of the steering arm attached to the hub carrier. Ultimately, you're modifying the relative height/angle of the arm to coincide with a relocated steering rack, so the precision of the geometry is key.

bewtew 08-11-09 09:35 PM

http://i73.photobucket.com/albums/i2...t/IMG_0263.jpg
http://i73.photobucket.com/albums/i2...t/IMG_0264.jpg
http://i73.photobucket.com/albums/i2...t/IMG_0266.jpg
http://i73.photobucket.com/albums/i2...t/IMG_0262.jpg

gracer7-rx7 08-11-09 10:05 PM

I could be wrong but aren't your tie rods on upside down? IIRC, they should mount from under the control arm.

pomanferrari 08-11-09 10:10 PM


Originally Posted by bewtew (Post 9420090)


Dude - that is DEFINITELY NOT a stock sub-frame you have there. Ride height looked about right but you are missing part of the subframe towards the front of the engine.

I bet when you hit a bump you're 3 lanes over eh?

bewtew 08-11-09 11:44 PM


Originally Posted by gracer7-rx7 (Post 9420152)
I could be wrong but aren't your tie rods on upside down? IIRC, they should mount from under the control arm.

if they do mount from under the control arm then they are upside down.. wow i can't the place where i took the car to get them install did this..



Originally Posted by pomanferrari (Post 9420161)
Dude - that is DEFINITELY NOT a stock sub-frame you have there. Ride height looked about right but you are missing part of the subframe towards the front of the engine.

I bet when you hit a bump you're 3 lanes over eh?

no i dont go over 3 lanes.. the car feels fine except for small cracks on the road.
i know what you are talking about but u can't see much from the angle of these pictures, and yes it is a stock subframe. i'll take some pictures from under once i get the car to a lift.

i think my bumpsteer problem is because some idiot at the shop where i took the car to get the tie rods installed put them upside down

pomanferrari 08-12-09 12:15 AM

Compare the location of your tie-rod with mine below: your tie-rod is definitely set way too low either because you have the car lowered so much or the sub-frame has been shifted downward somehow.



Originally Posted by bewtew (Post 9420090)

http://i793.photobucket.com/albums/y...g?t=1250053840

http://i793.photobucket.com/albums/y...g?t=1250053948


The other side. Yeah it gets dirty when you blow your oil cooler lines twice and dump 5 quarts each time.

http://i793.photobucket.com/albums/y...g?t=1250053993

gracer7-rx7 08-12-09 12:47 AM


Originally Posted by bewtew (Post 9420364)
if they do mount from under the control arm then they are upside down.. wow i can't the place where i took the car to get them install did this..

<snip>

i think my bumpsteer problem is because some idiot at the shop where i took the car to get the tie rods installed put them upside down


Its hard to tell from your pics but something doesn't look right with the way your tie rods are angled. Pull a wheel off and compare with poman's pics.

David Hayes 08-12-09 06:20 AM

Does this mean you are not going to share with me your temp lowering fix?:) Come on man, I gave up Megan Racing as a possible solution!


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