mark@wrx

Anybody know what the size of the springs are on BC BR coilovers? ie Diameter, free length. Thanks.

bren@apex

iTrader: (20)

The majority are 62mm id. They are available in a variety of lengths. What are you wanting to do?

mark@wrx

Looking at changing the rears Bren to try and get rid of the pogo effect from the back end. Tried changing the dampng settings but if I go too soft it feels wallowy, too hard and the rebound over bumps/compressions nearly fires me through the screen. I know the proper solution is BC ER's with seperately adjustable bump/rebound but finances are tight at the minute!

For reference I drive a hawk STI and am running 14 clicks from soft all round.

bren@apex

iTrader: (20)

What spring rates do you have now and what do you want to swap to?

Do you have the OEM style rear top mounts?

mark@wrx

Bren,
Not sure which way would be best to go with springs. Could you make a suggestion? I do have the OE style rear mounts as supplied with the kit.

bren@apex

iTrader: (20)

Youre on 5kg.mm on the rear at the moment?

mark@wrx

Yes thats right, 6kg/mm front & 5kg/mm rear

bren@apex

iTrader: (20)

We only have springs to suit the OEM style top mounts in 4 and 5kg.mm.

To go to 6kg.mm would require also swapping to the normal rear to mounts.

How many clicks of adjustment are you going through at a time? Id strongly recommend you do one click at a time rather than 3 or 4.

mark@wrx

Bren I only adjust one click at a time as I find the change quite noticeable. 13 clicks is too soft, 14 I can just about live with but 15 gives too much rebound. When you say normal rear mounts, is that the pillow ball type?

JohnD

iTrader: (5)

On my Blob STi with 6/5 springs I'm currently using 10 clicks from soft on the front and 8 on the rear. I found 14 clicks just too hard on the average public road.

JohnD

turninconcepts

7k front 5k rear for an aggressive daily. 6/4 for more comfort. Some of the guys over here have been using the Swift springs (a nice spring) with the BC and have commented that it has made for a nice change. Even with swapping like for like rates.

Kedlestone

iTrader: (9)

I've just bought some RM series second hand, great condition. The springs it's comes with are 8 front and 6 rear. I'm expecting this to be a stiff setup, anyone else running this? If so what damping are you running to compliment it? Just to let you know I'm new to suspension setups.

bren@apex

iTrader: (20)

Hi,

Bren means the non-OEM type of topmount, that can be a plain rubber type, a fixed pillowball or a camber pillowball.

Please bear in mind that the OEM style is used to reduce the noise transmitance into the cabin. A pillowball type rear topmount is generally suggested only for track use where noise transmitence would not be a problem.

Thanks

Kev @ Apex


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