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Bc Br Coilovers Pre-Load And Dampening On Custom Springs Rates

Pattey21
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Pattey21 Proficient

Pattey21

Posted
Posted

Hey guys just put in my bc br coilovers in my r33 and initially they were very bouncy. Springs are 6kg/mm F and 4kg/mm rear.

The dampening settings were 8clicks off full hard front and rear. Ive backed it off a bit 16F and 24R and it feels better.

Also they seemed to be running a heap of preload like 8mm. I made the springs just captive and that improved it still but ride is still bouncy.

Anyone know the recommended preload and or dampening seting i should be using for custom spring rates.

Cheers

Patrick

simpletool Mentor

simpletool

Posted
Posted

Pre-load shouldn't affect ride noticeably. Personally I wouldn't be confident that the damping settings on BC's are repeatable between sets - without some evidence.

Normally the term "bouncy" is used when the rebound is set too low and the car oscillates up and down after a bump. I think you must mean "harsh" or "stiff" if backing off the damping helped (the compression damping was too high).

I don't hold much hope that anyone will be able to help you over the internet. So maybe just play around and see what you like. Otherwise take them to a proper suspension place and get them set. But by then you'd be better off having sold them and bought Shockworks or MCA Blue.

Daleo Grand Master

Daleo

Posted
Posted

The BC BR's aren't a bad set up for the dollars.

Why not start with them fully soft and work your way back from there?

You say they're too bouncy, yet you're running the rears 6 clicks out from full hard. :whistling:

You want to be running the damping as soft as you possibly can and still suit your driving style/roads.

boostn0199 Grand Master

boostn0199

Posted
Posted

set preload at 0 and the dampening to full soft front and back then adjust depending how it feels. If the car feels to soft increase front and rear a few clicks , if its understeering add a few clicks in rear and for oversteer add a few in front until you reach a good balance.

  • 4 weeks later...
darksky34 Mentor

darksky34

Posted
Posted

What do you think of these coilovers? I'm looking at getting some for my r33 gt

Are you poor or can you afford decent suspension?

HAHAHAHA Wiggles, if you can afford a GTR you should hopefully be able to buy decent stuff. Go for Bilstein PSS9 (or just damper+spring combo) or else something better...like Ohlin's

Wiggles Rookie

Wiggles

Posted
Posted (edited)

HAHAHAHA Wiggles, if you can afford a GTR you should hopefully be able to buy decent stuff. Go for Bilstein PSS9 (or just damper+spring combo) or else something better...like Ohlin's

Eh just saw that they were there and cheaper seemed good enough. Will probably go for apexi n1 or similar

Got a link for the öhlins?

Edited by Wiggles
GTSBoy Grand Master

GTSBoy

Posted
Posted

Nonononono. Don't just buy coilovers, especially Jap coilovers, without thinking about what they are made up out of. A set of B6 Bilstein dampers and Whiteline springs would be a better option than almost any set of coilovers if you're talking about a road car. You have to spend a lot on coilovers to get actual good quality stuff.

GTSBoy Grand Master

GTSBoy

Posted
Posted

Which is why I mentioned for a road car. Track cars can and do need a lot of spring rate. But a lot of spring rate on a road car just makes for a bouncy bucket of shit. Australian roads, even the main roads in the suburbs, are just too rough. You can actually drive faster and get better handling if the tyres stay in contact with the road. </preaching to the converted>

Wiggles Rookie

Wiggles

Posted
Posted

I have nismo s tune on my car now, the reason I wanna change them in they lack adjustability. With the apexi they have a similar spring rate + the adjustability that the nismo lack.

My car is predominately a streeter but if I get the chance I take it on a track, I mean that's why we buy these cars right. To enjoy them?

Also I've been in a car with cusco 12/10 spring rates ant it was in no way comfy. My previous had tien super streets.

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