Does anyone in the Sydney or Hunter Valley Areas know where I could find a place that does custom springs? [both spring rate and hight]

Regards,
Alex

King Springs. Had them make some ultra customs years ago for my Alpina BMW 635. They did a brilliant job of matching the genuine Alpina springs but at a fraction of the cost. Even custom powder coated em metallic black for me.

yep king springs do them, so do lovells

Sweet...

Did you find them exy?

Regards,
Alex

Sweet...

Did you find them exy?

Regards,
Alex
they are around about 150 per set (or 290 for all of them)

Sweet... That sounds cheap as chips... LOL

Now... For spring rate... What do you guys think...

8.5kg/mm Front and rear? Too stiff? Too Soft? Looking for the best balence between Street and Track..

your best bet is a drift forum or a track racing as they can explain everything about spring rates etc

due to the size of the car.. a harder rate won't really hurt.. i would prolly go for an 8.5 front and 6.5 rear.. you'd want roughly a 2kg split.. don't forget these rates are liniar.. not progressive so there will be very little absobtion before you get feedback.. great on the track.. gay for street..

i had 8 front and 7 rear in my drifter AE86 coupe.. and it was insane to drive on the street.. however a similarly modded 4 door skyline was no where near as uncomfortable to drive on the street..

If they dont do it for you K-Mac will do custom springs/sway bars too.

your best bet is a drift forum or a track racing as they can explain everything about spring rates etc

Except none of them will have had any experience setting up a magna, and very few with any clue as to how to setup a FWD (i.e forget anything you know about RWDs).


due to the size of the car.. a harder rate won't really hurt.. i would prolly go for an 8.5 front and 6.5 rear.. you'd want roughly a 2kg split.. don't forget these rates are liniar.. not progressive so there will be very little absobtion before you get feedback.. great on the track.. gay for street..

i had 8 front and 7 rear in my drifter AE86 coupe.. and it was insane to drive on the street.. however a similarly modded 4 door skyline was no where near as uncomfortable to drive on the street..

Don't make the mistake of comparing springrates between different cars, as different degrees of leverage make direct comparisons impossible. Also forget trying to apply general RWD setup principles to a FWD, the aims are completely different.

Basically in a FWD you are trying to maximise front-end grip, while in a RWD rear-end grip is the main priority (unless you are setting it up for drift of course). Typically a fast track FWD will slightly oversteer on turn-in to maximise front-end grip, while a RWD will have mild understeer on turn-in to give good power-down for the rear wheels.

Alex: What is your goal? Go quick around a track, or better handling for enthusiastic street driving?

I have spoken to a few IPRA magna runners, and they suggested 400lbs/inch front and 350lbs rear to start off with, with decent dampers valved to match. On the track, This sort of setup will be FAR superior to any of the usual off-the-shelf stuff, while retaining bearable ride comfort on the street (highly subjective of course).

To put it into perspective, King Lows are 180lbs/inch at the front, and for a track-only magna you are looking at 500lbs and above.

For a track setup at the end of the day all you can do is to do plenty of research, pick a point to start at, and then find through trial and error what suits your driving style/preferences. The general idea is to have the back sprung very stiff relative to the front, to reduce understeer, and even have a tendency to oversteer on turn-in.

You also want plenty of roll resistance at the front to stop the car from keeling over on the outside front wheel. However, too high a spring rate will actually reduce grip and even lift up the inside wheel under cornering, the sweet spot is somewhere in the middle.

To add more complexity, we have to deal having a Mcpherson strut setup on our cars, which exhibit undesireable geometry changes under compression (namely gaining positive camber). it's a bit of a balancing act between springrate and geometry to find what works well on a track.

Personally I'm gonna start with 400lbs front and 350lbs rear. Dampers will be Koni Yellows revalved to suit my spring rates. Although I'm still keeping an eye out for other options. E.g Hotbits claim to be able to make coilovers to my specs, however I'm a little dubious about their suitability for track use (both in terms of durability and quality of R&D).

Kmac do them. Any stiffness or height u want. $550 fitted..:)

lol, why outsource when there is a place in our own backyard.......

Lovells Springs
44 Parker Street CARRINGTON 2294
(02) 4969 7588