| Author | Message | ||
| Clark Driggers (Clark)
New member Username: Clark Post Number: 29 Registered: 11-2001 |
Jorma, That is unfortunate. It has has been sunny in the 70's in Atlanta. PERFECT weather Clark | ||
| Jorma Johansson (Jjfinland)
Junior Member Username: Jjfinland Post Number: 150 Registered: 3-2001 |
Nice to hear that, Clark. We still have snow and ice in Finland, so no driving with the Ferrari, I just have play with my toy in the garage  | ||
| Clark Driggers (Clark)
New member Username: Clark Post Number: 28 Registered: 11-2001 |
Jorma I filled up with gas and went to the flatest parking lot I could and the left and right rear are equal when measuring from the ground to the fender. I must ahve been on an odd slope at the time. Clark | ||
| Peter S�derlund /328 GTB -88 (Corsa)
Junior Member Username: Corsa Post Number: 132 Registered: 4-2001 |
Hi Ulf. I bought them from St�td�mparexperten in Stockholm, 08-650 10 07, Talk to Pelle. The dampers, "46DR Racing", where built just for my 328. 5500 sek (=$550) each without canister (rebound adj), 7500 with canister (rebound and comp adj). Check the "46DR Racing" damper at http://www.ohlins.se/ and http://www.stotdamparexperten.nu/ I will do some testing tomorrow if it doesn't snow. Ciao Peter | ||
| Jorma Johansson (Jjfinland)
Junior Member Username: Jjfinland Post Number: 149 Registered: 3-2001 |
One question,Clark, are the front measurements equal? In your first posting you say that the left REAR is 1/2 inc and so on, do you mean that the left SIDE of the car is 1/2 inc lower? That I can understand, not only one corner. | ||
| Clark Driggers (Clark)
New member Username: Clark Post Number: 26 Registered: 11-2001 |
Jorma, Your comment does not make any sense. Either one side is high or one is low. Of course they are going to be different, that is the point, they are different. What is the normal height and I can then tell you whether one is high or low. Clark | ||
| Ulf Modig (Ulf308qv)
New member Username: Ulf308qv Post Number: 35 Registered: 3-2001 |
Peter, were did you get your �hlins? Mvh/Ulf | ||
| Jorma Johansson (Jjfinland)
Junior Member Username: Jjfinland Post Number: 147 Registered: 3-2001 |
Clark, its impossible to have one corner high without having the opposite corner low. Just jack up one corner and go to see what happends to the opposite corner If you have the same height in front, left and right, and different values rear, the car body is bend!! Where do you measure? Look Magoos comment about the sheet metal ( fenders). | ||
| Peter S�derlund /328 GTB -88 (Corsa)
Junior Member Username: Corsa Post Number: 128 Registered: 4-2001 |
Tack Jorma. Jag har f�tt det. Kommer du till Stockholm f�r att handla lite den n�rmaste tiden? D� kan vi titta p� de nya d�mparna och mixtra med h�jden och v�ga lite. Curious??? Ciao Peter | ||
| Clark Driggers (Clark)
New member Username: Clark Post Number: 25 Registered: 11-2001 |
Jorma, It is the rear left and right that is off not the front and rear. Any suggestions Clark | ||
| Jorma Johansson (Jjfinland)
Junior Member Username: Jjfinland Post Number: 146 Registered: 3-2001 |
Yes, Peter. Kommer med mera info med e-mail. | ||
| Peter S�derlund /328 GTB -88 (Corsa)
Junior Member Username: Corsa Post Number: 127 Registered: 4-2001 |
Jorma, do you have corner weight scales? I have new �hlins shocks with adjustable ride height/spring pre-tension on the 328 now. Scales could be useful now. Ciao Peter | ||
| Jorma Johansson (Jjfinland)
Junior Member Username: Jjfinland Post Number: 145 Registered: 3-2001 |
Clark, if the left rear is low, so the right front is high, unless your car is flexing. This situation is called " the car is on knife edge" and it is bad for handling balance. Cornering left can be much differant that cornering riht. Asymmetrical loading is certain to result in an instbility under some condition or combination of cornering, accelarating, or braking. This is the most important thing,when setting up a race car. When you make some chances on the springs, always check the corner weights. In a race car it is done with the driver in car, but because you can have a passanger, it better to do with empty car. I have built some race cars and have some books about this. The corner weights should bet the same front and the same rear. | ||
| Steve Magnusson (91tr)
Member Username: 91tr Post Number: 598 Registered: 1-2001 |
Richelson -- yes, at full suspension droop (i.e., full shock extension), the spring load is carried by the shock only. | ||
| Richelson (Richelson)
Member Username: Richelson Post Number: 624 Registered: 12-2001 |
Thanks Steve. So if the car is jacked up then that takes all of the pressure off of the spring and shock? I just don't want it to have pressure on it and the release it at me. | ||
| Steve Magnusson (91tr)
Member Username: 91tr Post Number: 596 Registered: 1-2001 |
Clark -- Is it a B or an S? The S chassis/coachwork is more flexible so you have a better chance at correcting a "one corner" height problem, but a B is so stiff that if you "fix" the rear you'll just transfer the error to the front (i.e., on a B I think the best you could do is share the error between the front and the back if all four wheel arch points are not coplanar). Richelson -- To remove the shock/spring assembly from the chassis doesn't require any special tools (but it does require unbolting the upper A-arm from the chassis in order to have enough clearance to remove the shock/spring assembly). Removing the spring from the shock does require the appropriate compressor (but I'd just send the whole assembly to someone like Truechoice -- that way they can do the disassembly/reassembly and check the spring characteristics too). | ||
| Richelson (Richelson)
Member Username: Richelson Post Number: 623 Registered: 12-2001 |
Can the 308 shocks just be removed or do you have to have special tools/compressors to do it? Do you just remove the bolts with the car jacked up in the air and remove them? | ||
| Clark Driggers (Clark)
New member Username: Clark Post Number: 23 Registered: 11-2001 |
It is a 85 308. I measured from the ground up to the middle of the wheel arch. It sounds like it is a spring if the shocks do not adjust ride height. Antbody in Atlanta had any good experiences with a mechanic who works on suspension issues? Clark | ||
| Steve Magnusson (91tr)
Member Username: 91tr Post Number: 594 Registered: 1-2001 |
Clark -- what year/model? (add to your profile?) When on a level surface you might want to measure the distance from the ground to the top of the wheel arch measured at each wheel (thru the wheel center) -- from this you can deduce whether or not it's just a spring/distance problem (i.e, all four wheel arch points are coplanar) or if the coachwork is also tweaked a bit (i.e., the four points are not coplanar). | ||
| Bill Sebestyen (Bill308)
Junior Member Username: Bill308 Post Number: 120 Registered: 5-2001 |
Clark, Shocks, by themselves, won�t alter ride height. They control damping. Koni NA and True Choice can both rebuild shocks. If you're talking about 308 shocks, replacements are available for about $150 each. The cost of rebuilding your present shocks may be about half the cost of new ones. Assuming you have no frame damage, you may be experiencing spring sag. There are at least 3-things you can do to adjust the ride height. You can shim the spring with a spacer, replace it, or have your shocks modified to accept adjustable spring perches. Bill | ||
| magoo (Magoo)
Intermediate Member Username: Magoo Post Number: 2139 Registered: 2-2001 |
Are you measuring from the frame or the sheet metal? Only measure from the bottom of the frame to the floor on a level surface. Sheet metal can vary. It could also be a weak spring around the shock, not the shock itself. Also check the bushings. | ||
| BretM (Bretm)
Intermediate Member Username: Bretm Post Number: 2005 Registered: 2-2001 |
Nick rebuilds Koni's I think, he also lowers them, etc whatever you want. | ||
| Greg Owens (Owens84qv)
Junior Member Username: Owens84qv Post Number: 245 Registered: 10-2001 |
I've heard that you can send your Koni shocks (I'm assuming that's what you have) to Koni for a rebuild....or, they might offer a replacement for little more than your refurbished shocks. You may also want to do a search for past threads on this topic (e.g. replacement of shocks). As far as who to take it to, there are several FC members in the Atlanta area...they should be able to point you in the right direction. | ||
| Clark Driggers (Clark)
New member Username: Clark Post Number: 22 Registered: 11-2001 |
Either the left rear of my car sits 1/2 inch lower than the right, or vice versa?? Any ideas on the problem? I figured it was the shocks. If it is what do I replace them with and who does a good job in Atlanta? |