I am still searching for shocks that can be adjusted in bump AND rebound.
I wanna have a good streetsetup and also want to dial them in for perfect weight transfere at the track.

That means at the track I wanna have the nose of the car coming up easy and keep it up!!!
And having the rear of the car coming down and staying down.

So I need to set the front shocks at soft rebound and stiff compression
and the rear shocks at soft compression and stiff rebound.

Am I right on that??

I think Öhlins are the only one´s who can be adjusted like that!!!!

I really hope anyone can help me find the best shocks for me!!!!!

Thanks,
Michael






[Modified by Austrian Vette, 7:43 PM 10/6/2002]

 

Ohlins do make some good shocks! They are supreme for motocross also!!

 

Thanks for the link, but I would like to get thought from someone who has them in his car......if there is someone.

Michael

 

Get in touch with seanr on the forum.. I believe he is from Sweeden and has them on his DRM C5R 427ci Red FRC.

 

Done!!!!!!

Thanks Matt!

:cheers:

Michael

 

Michael, if I recall correctly the Ohlins seanr is using are about 3-4 times the cost of the HALs (and are also coilovers.) Do you REALLY need both rebound and compression adjustment?

 

If you want adjustable shocks you could go with HALs or Penske's.
I know that Ohlins made killer xcross shocks..I used them on my Yamaha and KTM! So I am sure if they make a shock for the C5 it is right up there.

 

Yes, I DO think I need both.

If I have only one adjustabillity, like the HALs then if I set them soft in the front then they would let the car come up in the front, but would let it fall down as fast also.

And if there would be the reound set soft and the compression set stiff, then the nose would come up easy and be held up longer because of the stiff compression.

And exactly the opposite in the rear.
Set the compression low to let the car come down and the the rebound stiff to keep it down.

You get me??

Think that`s what would give best weight transfere.

Michael

 

Yes, I understand weight transfer. HALs will give you adjustable rebound (i.e. resistance to lengthening.) The question is whether or not your need for compression adjustability (i.e. resitance to shortening) justifies the cost.

In the front, if your action is smooth and you're not bouncing off the stops on shifts, you're fine. In the rear if you're getting adequate squat you're probably okay there. What you are trying to avoid in the rear is body separation and you need rebound control for that. Some video analysis will show where you're at now.

I agree that having totally adjustability would be great for both 1) getting your suspension dialed in and 2) dealing with changing track conditions but it just doesn't seem like you're leaving that much on the table by not having compression adjustment.

 

Try Koni shocks.
They have adjustable dampening to begin with.
Then you can send them to a Koni rebuild center and have rebound adjustable added. They can also make it externally adjustable.

 

You can purchase Penske 2 or 3 way adjustables for your needs. In autocrossing there isn't a comparible shock. Ohlins seem to be right up there from what I have read, yet I've never seen anyone run them for autocrossing. I've seen C5's shave some serious time off just by going to Penskes. I believe SeanR is running the Ohlins with coilovers and he road races if I remember correctly.

 

Michael,

I've been using Öhlins coilovers for one racing season and I'm extremely happy with the result. I do not yet have the knowledge to get them correctly adjusted but I'm learning. For now I have a experienced racing friend helping me to get the adjustment correct :)

I never dragrace so I do not know if the adjustment range are enough for your needs. You can have them built to almost any specification/behavior but of course within a reasonable range.

Öhlins do not have any off the shelf setup for the C5 so I removed the C5 specific mounting hardware from my old Bilstein (DRM) coilovers and moved it to the Öhlins. The local shock supplier measured the behavior of my Bilsteins and made the Öhlins to behave the same at a 10 click setting on the compression and rebound adjustment (mid setting). Both compression and rebound have a 20 click adjustment range.

I have the Öhlins 46HRC setup on my car and I've recently learned that you can buy all the C5 specific mounting hardware from DRM.

Penskes are more known in the US but the Öhlins have won many victories in different racing series in the US so I would guess they are on a compareable level.

Unfortunately the Öhlins are like the Penskes quite expensive. Four coilovers without springs and mounting hardware are about $3000.

Good luck.

:cheers:


[Modified by seanr, 6:36 PM 10/7/2002]

 

Thanks for the info.

Now I have to decide :D

Michael

 

you can accomplish what you want with any of these:

Koni
Penske
JRZ
Moton
Ohlins

and probably a few more I am not remembering. You need to be sure you can get adequate support and they are familiar with the application. Be careful, getting fed a heaping pile of :bs is not unusual in this field. IMO the people with the most C5 experience, from stock to full-on race, and also the best supported are Koni and Penske.

Mark
Koni 28 Series racing shocks

 

I've never heard of Moton...do they have a web site?

 

there were 3 guys who formed JRZ; two spunoff their own companies, one is Moton, can't recall the name of the other.

Moton is a quality product, support will be largely dependent on who you deal with, I know one vendor you can rely on but they specialize in mostly BMW applications. Here is the factory website:

http://www.motonsuspension.com/

Also worthy of mention are:

Ground Control
Dynamic Suspensions

Mark

 

As TeamZ06 says support and knowledge are the most important factors when going for this kind of shock setup. I have the Öhlins development and support a couple of miles from my home which was the most important factor for me selecting the Öhlins.

Good luck with your selection.

 

Thanks a lot guys!!!!

I just decided to step on the cheaper route
and ordered a set of HAL shocks from LAPD.

It seems that those will get me the best drag traction for less $.

The $ I saved now, I´ll spend on the engine :D


Thanks,
Michael