[Daniel_Mc]

Frank,

I don't remember what # controller did what with DRM but I do remember that one controller I had it did not matter what setting you were in because it was irrelevant . What the customer controller did was in “Tour” you had 50% front and 100% rear shock. In “Sport” you had 100% front and 50% rear shock and in “Performance” you had 100% both front and rear.

Now with the stock FX3 system the computer has several different levels within each setting (I don’t remember how many but I think 3). I know that Exotic Muscle still has the custom FX3 computers maybe they could help you as to what program you have going on. With our Rippie car we chose to keep the stock FX3 computer then valve the shocks to the Moracca setting for a more firm ride. It has worked like a champ over the years.

What spring rates are on your Z? I know in the past years that a higher rate was normally used. I have seen 700 pound front springs before on a “Street” C4 for comparison I am running 400 front and 275 rear on a more track oriented L98 C4 and it does just fine. I believe most now use a 450 front and 275 rear spring on the front of the ZR-1’s for street applications.

Are the shocks bottoming out? How much rake do you have?

Daniel