ESPELIR SPRINGS for G50 and Y33.. Group buy, $380 shipped!

[elwesso]

With the help of another forum member, we were able to import

ESN149 (FGY33) x 4ESN156 (G50) x 10

They will be provided for $380 shipped to the lower 48. Any other orders will be charged extra for shipping. Paypal is preferred but other arrangements can be made.

We know for any Q45 that it is basically impossible to get any springs, let alone ones of great quality like espelir..

These springs have been designed with luxury cars in mind. Everyone has said the ride is great..

The drop is about 30mm in the front and 40mm in the rear, so overall its gonna be about a 1.5in drop..

Many people can attest to the Y33 springs and there are numerous threads about it. Theres only one set of G50 springs in the US right now and he says he loves them!!!!

Please note that if you post something not relating to the springs you subject yourself to the post being deleted. It is the buyers responsibility to search and inform themselves of the pro/con of lowering springs... This thread is to provide the opportunity to get springs for their car...

If you are interested please send me an email. As always, I am here for support over email or phone so please contact me with questions.

I will not be handling transactions over the forum because a) it is not secure, b) it makes it harder for me to organize and keep track of stuff..

[maxnix]

It would be nice to have some spring rate specifications.

Just don't understand why anyone would want rear to sit lower than the front.

[elwesso]

it actually makes the car sit level since stock the rear sits higher than the front, not to mention its not that much different.

[moshmoshi]

Hi Wes, I tried to email you about springs but not working right. Could youemail me your contacts? [email protected]

alex

[elwesso]

i forgot that domain expired. Try my email in my profile again!!

[timderiksen]

how much longer will you have them springs cause ill purchase them as soon i get the funs also do you have to have a camber kit cause you know them wheels will have bad negative camber

[Haitian_King]

Good to know. I'll definitely add those to my summer budget and let you know!

[elwesso]

I have the springs so theyll be available for as long as supplies last!

[qsiguy]

Just springs right? Pair them up with some Tokico's? Is that what is recommended? How does the drop compare with the Cali Customs?

[maxnix]

it actually makes the car sit level since stock the rear sits higher than the front, not to mention its not that much different.

True, but RWD cars with front engines are meant to be slightly higher at the rear for aerodynamic andtrunk and rear passenger load reasons. Even load leveling cars with ari shocks ride a little higher at the rear.

[audiovisiony33]

The drop is about 30mm in the front and 40mm in the rear, so overall its gonna be about a 1.5in drop..

Actually it's the otherway around. According to the application chart it's 40~45mm in the front / 30~35mm in the rear and spring rate is 4.6 (F) & 4.2 (R).

Here is the link for the specs. & the price list http://www.espelir.co.jp/item%20serch.html


Modified by audiovisiony33 at 9:25 AM 7/30/2008

[Haitian_King]

These springs are an easy DIY? Just asking.

[elwesso]

For me personally I dont like spring compressors, especially since i dont have air tools.. So i usually pay someone the hour or whatever to put them in.

Its not a real hard DIY, and they will work great with Tokicos.

[Q45tech]

Stock 90-96 Q springs are 146 lb/in front and 123 rear. Important to keep the stiffness ratio equal, otherwise you will get an undulating pitch on highways at certain speeds whenever the normal seem/ asphalt machine length spacing occurs.

The fronts should be 18.7% stiffer however 14-25% would probably be acceptable.

Once you get above 15-20% stiffer the tokico BLUES run out of adquate rebound control.

[Q45tech]

No air tools in home garage, no wonder it takes you 4-6 times longer to do replacements.

[elwesso]

I edited my post, the price is $380, i made a miscalculation in the shipping charges!

[Haitian_King]

The fronts should be 18.7% stiffer however 14-25% would probably be acceptable.

Once you get above 15-20% stiffer the tokico BLUES run out of adquate rebound control.



? Should be 18.7% but 25% is an acceptable threshold even though at 20% the Tokico (Blues) shocks can't properly rebound?

I don't get it.

Please, no smarmy comments. That post as it was written is confusing as hell.

[qship96]

First step is to figure out how much stiffer the Espilir springs are compared gto stock springs- twice as stiff maybe? Search old threads as there is plenty of information for those wlling to search and make educated choices.

[Q45tech]

The spring stiffness and the wheel base [113.2"] [9.43'] and the speed set the pitch rate................remember shocks just slow [damp] the natural frequency of the springs.

At 60 mph it takes a bump 0.107 seconds to move from front to rear Q tire.

http://www.efunda.com/formulae...e.cfm

Download this excel spreadsheet and fill in correct numbers for Q use 4150 pounds and 55/45 weight dist and 136/123 springs. All other parameters are in FSM or ask.http://www.fromsteve.net/carst...c.zip

[bullittandy]

You didn't answer the question-try again.

[elwesso]

I think hes saying that up to 25% would be acceptable, but 15-20% is more of the money range.

[Haitian_King]

I think hes saying that up to 25% would be acceptable, but 15-20% is more of the money range.

But if the shocks lose the ability to rebound adequately after 20%, why push for 25%? I'm just confused as to the "Why?" part.

[elwesso]

because you'd hate to rule something out when its "close enough"

[qship96]

because you'd hate to rule something out when its "close enough"

The espilir springs are almost TWICE the stiffness of stock, so if the tokikos can only handle 20-25% stiffer than stock springs, how can you say they will work fine with the espilirs? "close enough"??????? 2x the stiffness is hardly "close enough" , please explain?????????????

[maxnix]

You didn't answer the question-try again.

Actually, for those that have at least an Excel viewer, the spreadsheet answers that and many more quite elegantly.

[Q45tech]

Because just like Goldilocks some like a hard stiff ride [women] and some want a soft cushy ride [men]...................oh we are talking about cars...reverse that.

Obviously asking the question means you haven't downloaded excel SHEETS since there is an entire section on shocks and under, over, and exact [CRITICAL] dampening calculations to match springs.

If you properly use excel a Q has a ~~1.1-1.2 Hz spring [natural oscillation] rate. Meaning after hitting a bump the the spring cycles up to 1.2 times per second IF the shocks have proper dampening.

A race car migh have a 1.5-1.9 oscillation rate.

The one thing the formula doesn't consider is the effective spring rate of tires [1000-1700 pound per inch depending on psi] but every [4.0] physics major knows how to measure that.

Having a 1500 tire mounted on a 146 spring acutually lowers the EFFECTIVE spring rate to ~~ 134 LB/INCH OVER A NARROW RANGE.http://www.proshocks.com/calcs/2spgrate.htm

[elwesso]

checked the price of the G50 springs in japan and it's 52,500 Yen = $497.00 USD!

For 350, its a steal!

[Q45tech]

For 25 years Japan has used a high markup up retail vs wholesale, to allow many middle different men to each make a profit.Where US may be double expect Japan to be triple or higher. The Japanese INET is driving the spread down just as it is in US.

Auto parts are highest in Japan, then comes US, then EU, then 3rd world just as with US pharmacuticals.

[elwesso]

Bump!

Ive had no one interested in the springs yet!

[maxnix]

With no data, no one knows exactly what they are buying.

Tough sell.