Suspension, Wheels, Brakes, Tires Power to the ground starts here.

Negative Offset For Fd

Thread Tools
 
Search this Thread
 
Old 03-29-2004, 11:09 PM
  #11  
Senior Member
Thread Starter
 
Srce's Avatar
 
Join Date: Oct 2002
Posts: 5,547
Default

Originally Posted by TYSON' date='Mar 30 2004, 12:05 AM
That's just for the rears. It monkey's with the steering if you do it in the front too.



It's not the end of the world, but if you want to do that, why not buy a poser car? Like that Supra, for example?
Very funny Mr. I don't get it though, what in the design would make the wheels do all of that?
Srce is offline  
Old 03-29-2004, 11:39 PM
  #12  
Senior Member
 
TYSON's Avatar
 
Join Date: Jan 2003
Location: London, Ontario
Posts: 2,871
Default

It makes the suspension arm longer. That puts more leverage on the spring, causing the rate to go down. But because this length is added outboard of the bearing, that increased leverage is applied to the bearing first. Any imbalance in the wheel also has leverage now, and is more noticeable. Following tracks in the road is more common with wide tires, and now that they're mounted out farther they now have more leverage against the steering tie rods as well.



Basically with the wheel pushed out farther via offset any forces on the tire have a longer arm to use. This will affect both forward and back (toe, in essence) as well as up and down movement.



As for the tire wear, I imagine it might be a symptom of all the other problems?



There are benefits to a wide track and long suspension arms, but you have to get the width in the suspension arm itself, not via wheel offset.
TYSON is offline  
Old 03-30-2004, 12:07 AM
  #13  
Senior Member
Thread Starter
 
Srce's Avatar
 
Join Date: Oct 2002
Posts: 5,547
Default

So is there a way for me to alter the suspension so that when this offset is applied, there would be no setbacks as far as the suspension goes? I mean, is there a way to sort of trick or build the suspension in accordance with the wheels so that there would be no differences in either set up (positive offset or negative).
Srce is offline  
Old 03-30-2004, 12:15 AM
  #14  
Senior Member
 
TYSON's Avatar
 
Join Date: Jan 2003
Location: London, Ontario
Posts: 2,871
Default

Originally Posted by Srce' date='Mar 30 2004, 01:07 AM
So is there a way for me to alter the suspension so that when this offset is applied, there would be no setbacks as far as the suspension goes? I mean, is there a way to sort of trick or build the suspension in accordance with the wheels so that there would be no differences in either set up (positive offset or negative).
No. You could go to a slightly stronger spring to fix that bit, but then you'd need a little more damping.



The leverage on the wheel bearing can not be fixed.



It's not like your wheel is going to fall off 10 miles down the road. But this will cause them to wear out faster and your car to handle differently.



Personally I wouldn't do it. I'm more into the performance of these cars, and the FD has one of the best factory suspension geometry's ever made. I wouldn't mess with it, because while it may not be perfect, I'm sure not the one to improve it.



Plus I think the cheesy fender flares and 'widebody' kits look like *** on these cars.
TYSON is offline  
Old 03-30-2004, 12:38 AM
  #15  
Senior Member
Thread Starter
 
Srce's Avatar
 
Join Date: Oct 2002
Posts: 5,547
Default

Originally Posted by TYSON' date='Mar 30 2004, 01:15 AM
No. You could go to a slightly stronger spring to fix that bit, but then you'd need a little more damping.



The leverage on the wheel bearing can not be fixed.



It's not like your wheel is going to fall off 10 miles down the road. But this will cause them to wear out faster and your car to handle differently.



Personally I wouldn't do it. I'm more into the performance of these cars, and the FD has one of the best factory suspension geometry's ever made. I wouldn't mess with it, because while it may not be perfect, I'm sure not the one to improve it.



Plus I think the cheesy fender flares and 'widebody' kits look like *** on these cars.
Understood, thanks Tice LOL. I think I'll get the rims with the FD offset.
Srce is offline  
Old 03-30-2004, 12:41 AM
  #16  
Senior Member
 
TYSON's Avatar
 
Join Date: Jan 2003
Location: London, Ontario
Posts: 2,871
Default

Check the lip on the Gram Light Pros.
TYSON is offline  
Old 03-30-2004, 12:50 AM
  #17  
Senior Member
Thread Starter
 
Srce's Avatar
 
Join Date: Oct 2002
Posts: 5,547
Default

Originally Posted by TYSON' date='Mar 30 2004, 01:41 AM
Check the lip on the Gram Light Pros.
Not my style of rim, I could get a bigger lip from the Borbet Type T's and save some cash by doing it but it's just not what I want. I think I'm gonna explore this a bit more I think.



See, I asked Do-Luck if they could make me an 11" wide rim so I could get the lip, keep the FD offset and all would be well. But they said no LOL, and I just figured that I'd need a seriously wider rim then 11 to get the 4" lip and rim depth I like.
Srce is offline  
Old 03-30-2004, 02:48 PM
  #18  
Senior Member
Thread Starter
 
Srce's Avatar
 
Join Date: Oct 2002
Posts: 5,547
Default

I just thought about this a bit more.



Tice you said that altering the offset by more then 2 inches would have these bad suspension characteristics or somehting to that effect? So, a -7 offset on top of the +50 one would yield a difference of 57mm to a proper FD fitment right?



Well, 57mm is rougly 2.3 inches, how big of a problem could a quarter + of an inch really present?
Srce is offline  
Old 03-30-2004, 03:05 PM
  #19  
Senior Member
 
TYSON's Avatar
 
Join Date: Jan 2003
Location: London, Ontario
Posts: 2,871
Default

Originally Posted by Srce' date='Mar 30 2004, 03:48 PM
I just thought about this a bit more.



Tice you said that altering the offset by more then 2 inches would have these bad suspension characteristics or somehting to that effect? So, a -7 offset on top of the +50 one would yield a difference of 57mm to a proper FD fitment right?



Well, 57mm is rougly 2.3 inches, how big of a problem could a quarter + of an inch really present?
I only used "more than 2 inches" because you mentioned a negative offset. With 2" = 50.8 mm I assumed you would have "more than 2" offset" if you had ANY negative offset.



The article doesn't mention when these bad effects start to take place.
TYSON is offline  
Old 03-30-2004, 03:11 PM
  #20  
Senior Member
Thread Starter
 
Srce's Avatar
 
Join Date: Oct 2002
Posts: 5,547
Default

Originally Posted by TYSON' date='Mar 30 2004, 04:05 PM
I only used "more than 2 inches" because you mentioned a negative offset. With 2" = 50.8 mm I assumed you would have "more than 2" offset" if you had ANY negative offset.



The article doesn't mention when these bad effects start to take place.
Good, you made it sound like there was no chance in hell of making this work or have it work. Plus, if the negative offset is so little (which it is), I highly doubt there that the bad effects would show to be a huge problem in the suspension setup.



Anyone else wanna chime in?
Srce is offline  


Quick Reply: Negative Offset For Fd



All times are GMT -5. The time now is 03:51 PM.