Will the x300 lower springs for x308
#2
11-02-2018, 02:40 PM
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#3
11-02-2018, 02:57 PM
Senior Member
Those springs are for a V6 engine equipped vehicle.
They might not give you the support you need for a V8 even if they can seat the same.
The V8 x308 is a heavier vehicle than the V6 X300.
When lowering the car, you want to go for a stiffer spring, to offset the lack of ride clearance your going to get by lowering the car.
Most lowering "kits" are stiffer springs that the stock springs anyway.
They might not give you the support you need for a V8 even if they can seat the same.
The V8 x308 is a heavier vehicle than the V6 X300.
When lowering the car, you want to go for a stiffer spring, to offset the lack of ride clearance your going to get by lowering the car.
Most lowering "kits" are stiffer springs that the stock springs anyway.
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Highhorse (11-02-2018)
#4
11-02-2018, 03:00 PM
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#6
11-02-2018, 03:42 PM
Senior Member
$ 499.00 @ www.minagallery.com
Product Description
Mina Gallery lowering springs for the Jaguar XJ8 .
Mina Gallery exclusive lowering springs have been designed and tested to produce a substantial improvement in handling while only minimal increasing road harshness. These units are a perfect option for either the daily driver or the serious race enthusiast. The lowering rate is compatible with the original shocks and therefore stiffer dampers are not required.
The kit will lower the car approximately 1.2"
* Installs like regular springs ** Kit includes four springs *** Made in Germany and adhere to all US and European quality standards (TUV approved).
Mina Gallery exclusive lowering springs have been designed and tested to produce a substantial improvement in handling while only minimal increasing road harshness. These units are a perfect option for either the daily driver or the serious race enthusiast. The lowering rate is compatible with the original shocks and therefore stiffer dampers are not required.
The kit will lower the car approximately 1.2"
* Installs like regular springs ** Kit includes four springs *** Made in Germany and adhere to all US and European quality standards (TUV approved).
#7
11-02-2018, 03:44 PM
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#8
11-02-2018, 03:51 PM
Veteran Member
Thing is Mina lists the springs separate for XJ8 & XJR, but what if the XJ8 has XJR rims or is it calibrated off something else that differs in the 2 ?!
Powerhouse springs :
https://www.powerhouse.uk/content/ja...ng-springs.php
Powerhouse springs :
https://www.powerhouse.uk/content/ja...ng-springs.php
Last edited by King Charles; 11-02-2018 at 05:05 PM.
#10
11-02-2018, 09:25 PM
Veteran Member
Thing is Mina lists the springs separate for XJ8 & XJR, but what if the XJ8 has XJR rims or is it calibrated off something else that differs in the 2 ?!
Powerhouse springs :
https://www.powerhouse.uk/content/ja...ng-springs.php
Powerhouse springs :
https://www.powerhouse.uk/content/ja...ng-springs.php
Whatever rim size you use, you should compensate by modifying the height of the tire.
So, if you got from a 225/60R16 (60 the height % of the tire), a 245/45R18 (45 the height % of the tire) has the same outside tire size, and will keep the ride height the same.
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King Charles (11-02-2018)
#11
11-02-2018, 09:39 PM
Veteran Member
KC, the amount of lowering by the springs does not relate to what wheels / rims / tires you have.
Whatever rim size you use, you should compensate by modifying the height of the tire.
So, if you got from a 225/60R16 (60 the height % of the tire), a 245/45R18 (45 the height % of the tire) has the same outside tire size, and will keep the ride height the same.
Whatever rim size you use, you should compensate by modifying the height of the tire.
So, if you got from a 225/60R16 (60 the height % of the tire), a 245/45R18 (45 the height % of the tire) has the same outside tire size, and will keep the ride height the same.
#12
11-02-2018, 11:42 PM
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someguywithajag (12-15-2020)
#13
11-03-2018, 01:21 AM
#14
11-03-2018, 01:56 AM
Veteran Member
The ride height of the X308-s is also much controlled by the gas under pressure in the shock absorbers - if the gas leaks out, the X308 sits down like a race car. I do not know if X300-s have similar arrangement with gas shock absorbers, i.e. to what extent they share the car's weight with the springs. So, I would only go for lowering springs that are designed for the X308 and the type of shock absorbers (the gas pressure) that it has.
#15
11-03-2018, 02:35 AM
X300-s have I6 (straight six) engines which are 90 lb. heavier than the V8-s. Otherwise, both cars, X300 and X308, have virtually the same weight (1,800 kg). Due to heavier engines, the X300 front springs are probably stiffer than the X308's so the lowering X300 springs may not lower the X308 much.
The ride height of the X308-s is also much controlled by the gas under pressure in the shock absorbers - if the gas leaks out, the X308 sits down like a race car. I do not know if X300-s have similar arrangement with gas shock absorbers, i.e. to what extent they share the car's weight with the springs. So, I would only go for lowering springs that are designed for the X308 and the type of shock absorbers (the gas pressure) that it has.
The ride height of the X308-s is also much controlled by the gas under pressure in the shock absorbers - if the gas leaks out, the X308 sits down like a race car. I do not know if X300-s have similar arrangement with gas shock absorbers, i.e. to what extent they share the car's weight with the springs. So, I would only go for lowering springs that are designed for the X308 and the type of shock absorbers (the gas pressure) that it has.
#19
11-03-2018, 08:58 PM