Suspension/Wheels/Tires/Brakes

showa bathurst sp coilovers for fd ... spring rate and specs?

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Old Feb 11, 2011 | 01:12 PM
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amemiya7
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showa bathurst sp coilovers for fd ... spring rate and specs?

hi guys
i want to install these coilovers
does any1 have them installed on their fd?
i want to know about their spring rates and how much they drop the car?
any information on these coilovers wiil be great...and if any1 is selling them in good condition pls let me knoe
thanx
anees
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Old Feb 11, 2011 | 01:37 PM
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Check this thread:
https://www.rx7club.com/suspension-wheels-tires-brakes-20/need-info-mazdaspeed-coilovers-636112/

I think they may be the same as the "bathurst" setup.
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Old Feb 11, 2011 | 01:59 PM
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OP - I have them and love them for the street. Take a look at my profile and you will see pictures of my car. These pictures are taken with Eibachs and Tokicos, but I can tell you with the showas fully lowered they ride almost identical to the eibach/tokico setup. Not too low, and no 4x4 look.

My front fender with 18" rims is just over 25" from ground to fender so the drop is close to 1" all around. The spring is similar to the R1 in rate.

I looked EVERYWHERE, and couldn't find exact spring rates on these things. I even talked to a few guys in AUS and they couldn't give me an exact answer.

PM me on your timing and this time I will get you pics, I know we had talked back in Dec and I am still looking to upgrade to a track ready setup (hypermaxx III or somethign similar). These only have ~ 10K miles on them and are in EXCELLENT condition.
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Old Feb 11, 2011 | 09:28 PM
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Originally Posted by dfoster154
OP - I have them and love them for the street. Take a look at my profile and you will see pictures of my car. These pictures are taken with Eibachs and Tokicos, but I can tell you with the showas fully lowered they ride almost identical to the eibach/tokico setup. Not too low, and no 4x4 look.

My front fender with 18" rims is just over 25" from ground to fender so the drop is close to 1" all around. The spring is similar to the R1 in rate.

I looked EVERYWHERE, and couldn't find exact spring rates on these things. I even talked to a few guys in AUS and they couldn't give me an exact answer.

PM me on your timing and this time I will get you pics, I know we had talked back in Dec and I am still looking to upgrade to a track ready setup (hypermaxx III or somethign similar). These only have ~ 10K miles on them and are in EXCELLENT condition.
hows the ride comfortability and handling..?
i do most of the street driving.... and almost never see a track
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Old Feb 11, 2011 | 10:53 PM
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Same here, I looked all over the spring rates and couldn't find them - as dfoster said, reportedly they're similar to the R1, which should be about right for the street
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Old Feb 11, 2011 | 11:11 PM
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much more comfortable than my previous eibach/tokico setup. for street driving you will not be disappointed
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Old Feb 12, 2011 | 06:56 AM
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Wastegate John
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I had the bathurst coilovers and they are great. Ride is good and it lowers the car. For a car that sees the street alot I do not think these coilovers can be beat.




John
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Old Feb 12, 2011 | 10:14 AM
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amemiya7
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so they drop the car about an inch rite? how much they would cost me if I want to buy new ... and how much they would cost if I wana buy them used...... what kinda of kms or miles I should be looking at a used set of these coilovers
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Old Feb 12, 2011 | 10:15 AM
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would u guys that the spring rate is 8/6 or 6/8 or softer than that
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Old Feb 12, 2011 | 11:18 AM
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PM'd you on cost for my used showa.

On the spring rate I believe stock was 5/3 or 6/4. These should be similar, but alas I cannot find the specs.

Spoke to soon... found this on FDS3.net This is the Stock R1 Suspension

Spring rate lbs/in (F/R) - 269.5 / 192.5
Spring rate kp/mm (F/R) - 5.01 / 3.58
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Old Feb 12, 2011 | 12:39 PM
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Here as some OK pics (stuck in my garage with 2FT of snow outside the door ) of how the Showas fully lowered (-20mm from stock) look on an FD with 18" rims. apologize for my sleeve getting in the way on the one shot. If you want to keep a stockish ride with comfort yet still get a more agressive drop with aftermarket wheels, these are the way to go.

Take a look:

Front Wheel and Spacing



Rear Wheel and Spacing

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Old Feb 14, 2011 | 11:00 PM
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hmm thats nice
so this is the lowest these coilovers will go rite?
let me know .. and keep me posted with the updates of your new coiloverss..
i am no rush .. but really wana buy these
would u say that my car will look more lower if i have 17" rims?
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Old Feb 15, 2011 | 12:05 AM
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pm'ing
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Old Feb 15, 2011 | 10:14 AM
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Looks almost identical to my former Eibach/Bilstein set-up, which works ok for the street, but was too soft. I have the Showas now, just waiting to get my bushings installed
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Old Feb 15, 2011 | 11:12 AM
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those pictures are of the car with the Showas installed.
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Old Jan 5, 2017 | 04:37 PM
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Originally Posted by Captain_Panic
PM'd you on cost for my used showa.

On the spring rate I believe stock was 5/3 or 6/4. These should be similar, but alas I cannot find the specs.

Spoke to soon... found this on FDS3.net This is the Stock R1 Suspension

Spring rate lbs/in (F/R) - 269.5 / 192.5
Spring rate kp/mm (F/R) - 5.01 / 3.58

Bumping from the dead, but here's the spring rates from an Upgrage ad.

SHOWA (MAZDA genuine) screw harmonic drive
F158 28 700 R158 34 900
F:4.8K R:3.6K
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