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H&R makes a SLS set which you don't want....Order the springs specifically for non SLS e34s like a 535
This should prove interesting, since this kit is for the SLS system.I actually purchased H&R 29579 springs. Installed the fronts and yet to install the rears. I did my research and even though some people advised me to purchase springs for 535 or 530 i went with the ones for the M5. The springs fit on the Koni rear shocks. I don't foresee any problems.
In fact, my opinion is that we should use m5 springs and not 535 and 530. Just an opinion, its not based on any research or fact. Just simple logic that the spring rate is probably a little different and is designed for our cars. Another difference is that the 535 rear springs lower more than the m5 springs.
Will report back once I drive the car, but again, I don't foresee any problems/issues.
the m5 springs don't lower as much because it was designed for the longer sls strut. It's also a much softer spring rate, from what i've read. Have a feeling the rear will sit kind of low without the support of the sls strut, but we'll see. Will be a good experiment to see what happens.I actually purchased H&R 29579 springs. Installed the fronts and yet to install the rears. I did my research and even though some people advised me to purchase springs for 535 or 530 i went with the ones for the M5. The springs fit on the Koni rear shocks. I don't foresee any problems.
In fact, my opinion is that we should use m5 springs and not 535 and 530. Just an opinion, its not based on any research or fact. Just simple logic that the spring rate is probably a little different and is designed for our cars. Another difference is that the 535 rear springs lower more than the m5 springs.
Will report back once I drive the car, but again, I don't foresee any problems/issues.
no factual proof, just what i've read on the various forums over the years. I'm would imagine there is a real reason that everyone who deletes sls goes with 535 springs though.I don't think that it was designed for SLS specifically. I could be wrong, but all e34 m5 cars either have sls or edc. This is the reason why the kit specifies that it is for cars with sls suspension (vs edc suspension). So in other words, it is designed for e34 m5 (with sls suspension not edc suspension). That is all that comment means. (Or so I think)
Do you have any factual proof that these rear springs are softer than 535 springs would be or is this just what you've heard from other people? Also, do you know for a fact that SLS struts are longer than 535 or 530 struts? If so, how much longer are they? I am asking because this could potentially be a problem and have I heard this before I would have researched it a bit more in depth.
Thanks.
PS: just called H&R to ask them if the rear spring rates are different and if the lenght/height is different. He couldn't answer either of the questions specifically but did say that they are going to be different springs. I think that much we knew. :3:
I believe the reason is that the H&R 29579 kit says that it is for cars w/ self leveling and people think....geeee....i am deleting the SLS so i need springs for e34 without self leveling. I've been wrong before though......so you never know.no factual proof, just what i've read on the various forums over the years. I'm would imagine there is a real reason that everyone who deletes sls goes with 535 springs though.
I think the reason there is a specific application for the M5 is because all US m5's have sls. Not sure if there still is, but there used to be a part number for H&R's for other e34's with SLS, that was different from e34's with sls.You can clearly see that there is distinction between two different springs for the same car when the car can come with or without self leveling. E34 m5 do not come without self levelling (of some sort, EDC or SLS), which is why there is only one part number for our cars (and it specifies that it is for cars w/ self leveling and not EDC). As you can see, the second kit doesn't even have rear springs, just fronts. This is because the car is EDC.
I believe the reason is that the H&R 29579 kit says that it is for cars w/ self leveling and people think....geeee....i am deleting the SLS so i need springs for e34 without self leveling. I've been wrong before though......so you never know.
Why didn't you measure the SLS struts when you removed them with the new ones you were putting in? You could have had actual proof of any difference.
The logic was that the a 535 chassis was the embryo for the M5Blitzkrieg Bob....did the dealer give you an explanation as to why they went with 535 springs??
dinan also used to sell two seperate rear spring sets for the e34 M5, one for cars that retain SLS, and one for cars with sls deleted. Maybe you could call dinan and ask what the difference is between the springs? They usually don't release much proprietary information, but since they no longer produce these parts, maybe they'll give you some info.Dare I say "M" owners have egos? Not I, but I certainly want the best product for my car. Just some food for thought. I'll let you know how the install of the springs goes, and how they compare to my Dinan springs.