G4 spring rates

DaveO · Post by **DaveO** » Thu Feb 25, 2010 8:23 am

Hi Guys
I'm looking at changing the springs on my G4"s, to hard for the misses.
I 'm thinking of 5kg/mm and 4kg/mm.
Any thoughts on this?
To soft or could bottom out to much?
And i don't do any track work just a daily driver.

Dave

Post by **Bennoz** » Thu Feb 25, 2010 8:48 am

Should be ok. Wont be too soft, standard springs are 2.6 & 1.6kg/mm respecitvely.

Post by **I8A4RE** » Thu Feb 25, 2010 9:03 am

That is what I have on mine now

What profile tyre do you have?
If you have a low profile tyre, I would suggest that it will still be to stiff.

DaveO · Post by **DaveO** » Thu Feb 25, 2010 9:49 am

I8A4RE wrote:That is what I have on mine now

What profile tyre do you have?
If you have a low profile tyre, I would suggest that it will still be to stiff.

I'm running 35's ATM.
Yes they do give a harsh ride but with the new springs at least the stifness will be reduced.

I'm woried if i go any softer with the springs i might be getting into the zone ware i'll be bottoming out to much. (lowered 30mm) And since there are no bump stops that means the front tyers will be hitting the underside of the front chassis member.

Post by **I8A4RE** » Thu Feb 25, 2010 10:16 am

DaveO wrote:
I8A4RE wrote:That is what I have on mine now

What profile tyre do you have?
If you have a low profile tyre, I would suggest that it will still be to stiff.
I'm running 35's ATM.
Yes they do give a harsh ride but with the new springs at least the stifness will be reduced.
I'm woried if i go any softer with the springs i might be getting into the zone ware i'll be bottoming out to much. (lowered 30mm) And since there are no bump stops that means the front tyers will be hitting the underside of the front chassis member.

Yeah thats what I am running at the moment too. Geez your's must be a hard ride, cause mine deffinitly is..... I love it though.

I do VERY RARELY get a little bottoming out but my car is sitting extremely low and thats becuse of the sh*tty qld roads.

What setting do you have your dampner on?

Yeah, sounds like you should go for the 5kg/mm and 4kg/mm. and try that first.

DaveO · Post by **DaveO** » Thu Feb 25, 2010 1:13 pm

I8A4RE wrote:
DaveO wrote:
I8A4RE wrote:That is what I have on mine now

What profile tyre do you have?
If you have a low profile tyre, I would suggest that it will still be to stiff.
I'm running 35's ATM.
Yes they do give a harsh ride but with the new springs at least the stifness will be reduced.
I'm woried if i go any softer with the springs i might be getting into the zone ware i'll be bottoming out to much. (lowered 30mm) And since there are no bump stops that means the front tyers will be hitting the underside of the front chassis member.
Yeah thats what I am running at the moment too. Geez your's must be a hard ride, cause mine deffinitly is..... I love it though.

Love the ride too. The misses can't find a sports bra good enough.
I got them set at the setting just enough to stop the springs rebounding.
You really apreciate when you get on a good road though.
It must look weard for other people following me home as I swerve all over the road just to miss all the bumps and holes.

I do VERY RARELY get a little bottoming out but my car is sitting extremely low and thats becuse of the sh*tty qld roads.

What setting do you have your dampner on?

Yeah, sounds like you should go for the 5kg/mm and 4kg/mm. and try that first.

I love the ride too. But the misses can't find a sports bra good enough.
I've got the dampers set just soft enough to stop the springs from rebounding.
It must look weard to others following me to see me swerve allover the road to miss all the bumps and holes.
I got a price from D2 ( i know thats not G4 but they arn't supported in Aus any more) at $88 each plus $45 delivery.

Post by **I8A4RE** » Thu Feb 25, 2010 1:35 pm

Geez that's a good price. D2 are exactly the same as G4, I wouldnt even be surprised if they werent made out of the same factory..... as well as the BC ones too

rock_it · Post by **rock_it** » Thu Feb 25, 2010 1:39 pm

DaveO wrote: I got a price from D2 ( i know thats not G4 but they arn't supported in Aus any more) at $88 each plus $45 delivery.

What are their contact details.. I may need some springs if I keep my coilovers...

DaveO · Post by **DaveO** » Thu Feb 25, 2010 3:02 pm

Email contact
mao@d2racingsports.com.au
Just remember this is for the springs only.

rock_it · Post by **rock_it** » Thu Feb 25, 2010 3:16 pm

DaveO wrote:Email contact
mao@d2racingsports.com.au
Just remember this is for the springs only.

Sweet thanks mate ... Yeah, I have the G4's and am finding them a little rough .. Have just put on new rubber, and it feels a little better ... But am just not sure if I go new springs, or get new coilovers...

pete_gpx · Post by **pete_gpx** » Fri Feb 26, 2010 2:11 am

I8A4RE wrote:Geez that's a good price. D2 are exactly the same as G4, I wouldnt even be surprised if they werent made out of the same factory..... as well as the BC ones too

From the threads I've read on Boost Cruising, K-Sport, D2 and G4 are all manufactured in the same factory, with the same materials, while being rebadged as different brands.

The BC lineup, while still being relatively cheap, are made elsewhere, with proven higher build quality.

Post by **Bennoz** » Fri Feb 26, 2010 8:48 am

Not true ^^

FIRSTLY ************* Ksport is a totally different Company to D2...............

There has been a misunderstanding floating around the marketplace that needs to be cleared up.

Some people, presumably competitors, have been saying that the Ksport product is exactly the same as the D2 product, which is totally incorrect.

.................................................. ..............................
.................................................. ...............................
............

Here is what one Supplier has to say on the subject, and I quote:-

"Ksport is actually different from D2 completely. The D2 coilover uses a totaly different seal set. We have had both apart in our shop. D2 came apart because of a failure, and the Ksport was damaged in a car accident (bent) so we disassembled both.

The shaft on the D2's aren't exactly smooth all the way down and they are out of round by almost .05''. Their seals were almost rubber O -rings that were poorly installed.

The Ksport shafts are smooth all the way down and use much nicer seals all the way through. We have been using Ksport for a long time now, they have been great to work with and the product has yet to fail on us."
.................................................. ..............................
.................................................. ...............................
...............

If anyone would like a copy of the above exact communication, please email me here:- stsaus1@bigpond.com

Just Jap, the previous Australian Importer of the D2 product, tell me that they no longer import the D2 product because of manufacturing flaws, and too many warranty claims.

I personally would like to state that over the last 5 years since I have been selling the Ksport product here in Australia, I have had NO warranty claims, NO returns, and NO customer complaints, except one who fitted the product incorrectly thus damaging the coilovers, BUT, Ksport replaced them anyway. How good is that?

Even though I promote a number of coilover products, and brake kit products, I would have to say that for value for money you can't go past the Ksport product.

Regards, .........Paul
Paul V. TREVOR
Proprietor
Street to Track

Post by **I8A4RE** » Fri Feb 26, 2010 10:12 am

Just because there are two levels of quality, doesnt mean sh*t. Now i am not saying your wrong, all I am saying is what you have quoted doesnt prove anything.

I buy lots of mechanical parts (not for cars but for factory equipment) and I can prove that companies not only provide more than one level of quality but also have been known to create different company names to sell the substandard product in order not to tarnish their good name.

Chain company in Japan manufactures a premium chain, then china comes along and produces a chain totally inferior to japan chain but at 1/8 the price of japan's chain. Now the fitters replace all the chain on the equipment that doesnt need to have the premium product, about 75% in our factory. In terms of market share the japan company has lost millions in revenue. The only way to complete is to lower their price (but they would lose money if they lowered it to the cost f the china chain) or supply a cheaper alternative.

This works for them in two ways 1) Now their superior product gets an even better reputation and, 2) They now can re-claim more market share with their cheaper product.

This then also cause's two flow on effects.
1) The japan company has been getting its "inferior" product made in china, to obviously lower production costs. It then realises that it could also get it's superior chain made there at a fraction of the cost. So it does
2) The sales rep's now whisper to their customer oh but this chain is made from the same factory as the superior japan chain