Alignment problems with H&R Springs?

[AKUDOU]

I could go on and write that book if you like, but I normally I just try to provide enough info such that not only is the original post answered but the topic is covered well enough for anyone interested in it, and of course to dispel myths with no apparent basis in fact.............................. Very good! By absorbing what you have stated in chapter two I have decided the logical conclusion to the problem for me was that H&R springs and stock shocks don't mix. I wonder if that could be Braths problem considering we both have/had 93 NSXs with H&R?

 

[sjs]

Excellent point! I don't recall any reference to his shocks, and for sure H&R springs should not be used with stock ones. Besides acting a bit like a pogo stick, a badly under-damped car that has been lowered is far more likely to bottom the shocks and/or stack the coils depending on the bump-stops used on the shaft.

 

[Larry Bastanza]

OK,

So are we saying that the H&R's are degrading, due to using stock shocks that have them underdamped? mmm....?????

Also I have worse feelings about the Eibach's of late. I have had them on my car for three years. Last time I had an alignment, they could not get the front right in spec (-.8 camber was the best they could do) but left was capable of spec. They balanced the camber side to side and I let it go. My FRONT tire life is less now. (The tire life was fine the first year, the car was within spec, both sides).

About two weeks ago I started thinking, based on some other ride-hieght discussions here, I should check mine. My car is all over on the ride hieght, which explains the uneven camber. So.... as many have suggested on this board, the Eibachs do change over time, for the worse, IMO.

I am thinking about going back to stock springs and Bilstiens (lower perch) at this point.

My $.02
LarryB

 

[AKUDOU]

OK,



I am thinking about going back to stock springs and Bilstiens (lower perch) at this point.

My $.02
LarryB

Larry my thoughts also. I have tried both H&R,Eibach and after having the problems mentioned above the best trade off should be Bilstiens on the lower perch. With just a 7/8 drop the alignment problem should disappear and still have a nice lowerd appearance.

 

[Larry Bastanza]

I can also attest to "hitting the bump stops". Go into an uphill corner accelerating hard, almost gauranteed! I do also agree about the "sweet spot", it is pretty narrow on the NSX suspension.

I think as the suspension gets firmer (let's say Comptech Pro,as an extreme example) it is so stiff you actually spend more time in the sweet spot due to less overall suspension travel (compression) because of the stiffer springs(of course assuming an optimum static setup from the start).

The "street" spring rates are just too soft to keep you there.

Another $.02.
LarryB

 

[sjs]

OK,

So are we saying that the H&R's are degrading, due to using stock shocks that have them underdamped? mmm....?????...

Well, I'm not sure that's the case and I would have guessed otherwise, but it is possible. From what you've said, whatever the problem is it happens with Eibachs as well as H&Rs.

Has anyone actually measured their springs off the car to be sure that the differences in their lengths correspond to the ride height changes?

Time to buy Hypercoils.

 

[pok8rok8]

yes .....aftermarket springs and oem shocks never mix.....even in any car. The life of the oem shocks never last as long as they should because of the short stroke that the shocks now recieve. The lower the worse it is...becuase the travel on the shaft is shorter and the pressure inside the shocks is alot more....so now the tendancy for the shock to do is for th seals to leak or blow......

mike

 

[supergreen125]

anyone have any feedback regarding using zanardi springs with the bilsteins on the lower perch?
just curious.