Technical gmax springs question

[nmrmak]

I'm considering my options for various springs and i've noticed that gmax has two springs with different part numbers:
- 30 FI 13 which lowers a standard sei by 40mm
- 30 FI 14 which lowers a sei sporting by 20mm

I thought that sportings are 20mm lower than standard anyway, so why two different part numbers? Any ideas? If i decide to buy gmax, i should go with the standard sei ones (as mine isn't a sporting), but i think it's the same spring probably, right?

 

[ycming]

just go for the sporting ones, and you are getting KYB standard shocks right? just make sure you get one that are for the sporting!!

 

[nmrmak]

I'll have to check, but i'm not sure KYB has different shocks for the standard and the sporting (!?)
Is there a difference between those springs though? Common sense says "no", but i don't know what to think anymore.

 

[ycming]

AH am not sure either, regardless get the -40 mm sporting springs!

Ming

 

[nmrmak]

oh, i don't think you understood me. -40mm sporting = -60mm standard sei and i think that's too much of a drop. -40mm standard or -20mm sporting would be what i need

(well, okay, i wouldn't go below -45mm )

 

[ycming]

Why do you think that will be too much ?

Ming

 

[nmrmak]

well, there's a number of reasons... i don't like cars that are lowered over the top, the roads can be quite bumpy here, climbing curbs could become a problem and so on. 40mm is a nice drop for handling, right? And i've heard people say "don't go over 40mm or you'll need shortened shocks", "more than 40mm and the car loses its practicality" and stuff.

 

[beecon]

That is very confusing. I think the retailer has messed up as they should give the same drop.

To confirm, sporting springs are completely compatible with non sporting centos and vice versa?

I recently bought PI -35mm springs. Mixed reviews like all cheap springs, but the Gmax springs are almost universally described as hard/crashy.

 

[StoneNewt]

Anything beyond a 20mm drop really requires new dampers on a cento but you can get away without changing the dampers for a 40mm drop. The reason that you don't want to go further than a 40mm drop on stock dampers is because beyond that you risk bottoming out in the damper, this is a bad thing, it also puts much more stress on the damper.

For £20 more than the gmax springs you can get the Weitech which are superior in terms of ride quality & wheel/body control with the right damping rates, which is another reason to junk the stock dampers.

 

[ycming]

Yes, the reason i asked is that majority of the cento owners run 40mm drop on their sporting and that is the same as 60mm drop on a standard.

And with the 40 mm drop on a sporting, speedbumps is not a problem at all!

The end result of dropping a standard 60mm is the same as dropping a sporting 40mm. Just that the S started life 20mm higher...

Ming