MPP Coilovers Height Adjustment

[reds2k1]

At the initial recommended settings for Coilovers; F = 70mm & R = 18mm, will this lower the car 1.5 inches from factory settings?

For fronts & rears, which way do you adjust the spring perch to lower the height?

Thanks!

 

[JKarbon]

Not knowing which kit you purchased and what model 3 you have, I am going to out on a limb and assume from the specs you've provided, it's the MPP sport kit for an AWD application. If that's the case, with 70mm front and 18mm rear, you should achieve a drop in the neighborhood between 1.25-1.50" from that of the factory (give or take, as this range seems to differ slightly between the years). As for which way to rotate the springs perches - Up front, you'll want to (visually) lower the perches to drop the car. On the rear, you want to (visually) raise the perch upward, which will effectively drop the overall height of the assembly. It's all quite very simple...

 

[reds2k1]

Sorry for not being more specific. I have a 2022 M3P and have the MPP Sport Coilovers.

Thanks for your feedback. Another question regarding height adjustment. With the rear set at 18mm (gap between the bottom of the spring perch and the top of the body) and the front set at 70mm, does that mean that I can only lower the rear another 18mm max and the front 70mm max? Why is there a huge gap between rear and front when it comes to lowering? Or is it the 70mm is not fully useable?

 

[JKarbon]

The measurements are based on specific areas on each component and are to be used as reference points to aide with the installation. They do not reflect the maximum or minimum drop, but yes there's limitation on how low or high you can go. Using the rear perch as an example, once you've set that 18mm gap, there will undoubtedly be some more (visible thread) you can go before the perch bottoms out. That essentially will be the lowest you can go for the rear. The fronts at 70mm will have more (visible thread) room for adjustability, but it doesn't necessarily mean you'll be able to utilize that extra length. The manufacturer usually indicates the minimum and maximum range these kits are designed to work within, and it's usually best to stay within those specs, especially for the street.

 

[reds2k1]

Thank you JKarbon for your explanation. Makes total sense!