For those using bumpstops with AGX struts, how much did you trim off the front and rear with lowered springs? AGX says one can do 1/3 to 1/2 off with a 1-1/2" drop. Is it necessary, and if so, what differences in trimming between front and rear struts?

 

I don't think the front's need to be trimmed. But I did cut the rears about 2/3's off. Afterwards, I thought 1/2 would have been fine, thought I would have had to compress the springs more to get the top nut on. I don't think bumpstops would really ever hit the base of the strut, but oh well. I did if for convienence and fitment.

 

How far are you dropped? My Intrax springs are damn close to a 2" drop. I had to trim over 60% of my bump stops, front and rear, to get a good ride. I've only got about 1.5" of upwards wheel travel until the strut hits the stop.


Dave

 

I'm going back to a more "street" ride since I'm not autocrossing, putting on Progress springs. This should be about a 1.5" drop, maybe a little more. I was wondering how far Kevin's car was dropped for what he said about not trimming the fronts.

As a preliminary report on the Progress springs, here's a comparison to the stock SE springs: Fronts - SE. 15", 5 coils, Progress 14", 7 coils. Rears - SE. 11-3/4", 7 coils, Progress 11.1/4", 10 coils. Mind you, the SE springs have about 65,000 miles on them. The interesting thing is the Progress springs are SOFTER when I first push on them! Of course, how "progressive" they are I cannot tell until they are on the car. It may be that they just take up bumps more easily at the start but firm up well. I did call Progress to ask if these were just lowering springs or for performance and got a qualified "Well, yeah" answer. I'm hoping with the AGX struts they can be tuned to where I like them. These are the same color as the original coilover springs I got from Cattman, and those also had more windings than comparable springs, so I suspect Progress may have been the source on those. I'll just have to run these to see how they do.