Yellow Speed Racing coilovers

project.r.racing · Postby **project.r.racing** » Fri Dec 16, 2011 5:07 pm

That video just repeated what I typed. Personally I'd still do it the right way. Yes the right way might cost more. But at least it is right. But looking at that video, a short damper might be a better choice than a shorter shock.

My 1st coilovers (JIC Magic) I ever owned has helper springs, but that was cos they were the old skool design like Tein still do. Only height adjustment on the spring perch. So when they were lowered, the spring became non captive.

Since then I have had D2s, BCs, and now Yellowspeeds. All with hub knuckle height adjustment. The D2s were great straight out of the box. The BCs spring perch was so far off the 2 springs were not catpive out of the box, but no way to tell until they were on the car. The Yellowspeeds I ordered 2 days ago, time will tell how they go.

project.r.racing · Postby **project.r.racing** » Thu Jan 05, 2012 1:09 pm

YSRs turned up today. REmind me very much of my old D2s, with a few subtle differences.

aka_juffa · Postby **aka_juffa** » Tue Mar 13, 2012 10:18 am

So, any further thoughts/updates on these coilovers?

J.

project.r.racing · Postby **project.r.racing** » Tue Mar 13, 2012 10:25 am

I had to spend another $150 to make mine fit correctly. (Not a MX). Other than that, a very good coilover for the price. I shock is better than BC.

aka_juffa · Postby **aka_juffa** » Tue Mar 13, 2012 11:04 am

project.r.racing wrote: shock is better than BC.

Thanks. In what way(s) is the Yellow Speed better than BC?

J.

MackTheKnife · Postby **MackTheKnife** » Tue Mar 13, 2012 12:55 pm

I rate them highly, but don't expect plushness and comfort. They soak up smaller bumps, but drive on bumpy roads like Botany Road in the City or bumpy concrete sections of the freeway and you're on a fairground ride. It's not uncomfortable on bigger bumps but they're not effectively soaked up either.

If spirited driving is your thing, these are more than good enough. A mate who drove my car last weekend said it rode just like his old Exige which had Nitron Coilovers, I can't argue with him.

If you want a plush ride, get some Teins.

As far as lowness is concerned, I can't comment, mine is set a little higher than recommended so the additional bracing I have under my car doesn't make contact with immovable objects like speedhumps or ridges in the asphalt so much.

Jace · Postby **Jace** » Tue Mar 13, 2012 6:06 pm

Not enough base-height adjustment on the rear coilovers but they are by far the most comfortable coilovers I've owned.

OurCognitiveSurplus · Postby **OurCognitiveSurplus** » Tue Mar 13, 2012 6:58 pm

Any feelings about whether changing the ratio between the front and rear spring rates causes more over-steer on the track?

project.r.racing · Postby **project.r.racing** » Wed Mar 14, 2012 11:27 am

My old BCs had a 6/4 spring combo, and my current YSRs have 8/5 spring combo. I was expecting a increase in teeth shattering harseness. But they soak up the bump just as good.

Cannot comment on ride height, as the YSRs are not in a MX.

Thoughts on front/back sping ratios has been discussed in this thread. Read a few pages back.

OurCognitiveSurplus · Postby **OurCognitiveSurplus** » Wed Mar 14, 2012 1:48 pm

project.r.racing wrote:Thoughts on front/back sping ratios has been discussed in this thread. Read a few pages back.

I read the thread a third time and can't find anything about front back spring rate ratios and car balance. Perhaps I'm dense.

plohl · Postby **plohl** » Wed Mar 14, 2012 2:12 pm

are you after the spring rate? 8kg/mm and 6kg/mm (can't remember what the pro's rates are)

or the ratio between the spring rates? 8/6 = 1.333 or 6/8 = 0.75?

or another ratio all together? (FCM calculator maybe?)

project.r.racing · Postby **project.r.racing** » Wed Mar 14, 2012 2:15 pm

OurCognitiveSurplus wrote:
project.r.racing wrote:Thoughts on front/back sping ratios has been discussed in this thread. Read a few pages back.

I read the thread a third time and can't find anything about front back spring rate ratios and car balance. Perhaps I'm dense.

No you are not dense. Wrong thread suggestion from me. This is the correct one:-

viewtopic.php?f=30&t=50530&p=635787&hilit=spring+ratio#p635787

OurCognitiveSurplus · Postby **OurCognitiveSurplus** » Wed Mar 14, 2012 2:34 pm

project.r.racing wrote:Wrong thread suggestion from me. This is the correct one:-

viewtopic.php?f=30&t=50530&p=635787&hilit=spring+ratio#p635787

Yes, I've read this thread and found it very interesting. I think the linked thread convinced me of the merit of the 3kg/mm:2kg/mm ratio. YSR 8kg/6kg misses that ratio in favour of over-steer. Xida, after conversion, has 8kg/5.3kg - which seems ideal (the US approach to measuring spring rates is also more granular than the aussie approach).

I'm interested in people's experiance with 8kg/6kg in NA/NB to confirm or argue against the discussion in the linked thread. It is possible, for instance, that when YSR say 8/6 there might be some rounding involved and it's more of a 8.3/5.5 ratio (measuring in whole kg is a bit odd really).

Anyway, I'd just like to hear about the balance of the car from these YSR owners with NA or NB and the '8kg/6kg' springs when used on a track/hill climb.

kurumasen · Postby **kurumasen** » Thu Mar 15, 2012 12:53 pm

1st post!

Just bought myself a pretty much bone stock NB8A last week and got a set of YSR pro sports waiting to go in. Will be going in this Sunday, I'll let you guys know how it all goes and if there are any issues!

Vic

emx005 · Postby **emx005** » Sat Mar 17, 2012 2:27 pm

kurumasen wrote:1st post!

Just bought myself a pretty much bone stock NB8A last week and got a set of YSR pro sports waiting to go in. Will be going in this Sunday, I'll let you guys know how it all goes and if there are any issues!

Vic

Grats! I've had no issues at all with mine in my NA6. Even my wife who originally didn't like the stiffness loves driving the car even more once she got used to them.