crushingday

I have an '87 944S/968 conversion that curently have regular Koni yellow rear shocks. I also have a pair of them with helper springs and ride height collar. I beleive these were the 968 MO30 version. I have not tried these yet. What might I expect? Would these be a bit harsh on the street. I have Koni yellow adjustable struts up front and the 2nd largest swaybars available for any of the 944/968 series cars.

Vaino

Ride will depend on which springs are on the helpers. Anything ove 100in/lbs will cause the rer end to raise up over stock. At 100in/ft it will help induce oversteer.

Stephenwz968

My car is M030 and the rear ride height is non adjustable on the rear springs, only torsion bars and eccentric plates. Thanks,

Steve

Robby

Whether or not it beats you up is more a question of the relationship b/t the shocks (& their condition) & the springs... I don't believe the factory helpers were more than 50-75lbs- they really didn't do too much b/c the front spring rates stayed the same from previous 968's. They are really about as little as you could add back there & actually notice it- they are a nice addition for a street car IMO- I mean this from a stiffness perspective... I'm not big on rear helpers anymore, but, I like the 968 ones b/c they were actually made specifically for our cars & therefore, you shoudn't have some of the fitment & noise related issues common w/many aftermarket helpers... The eccentrics should have enough range left in them to take care of any hieght changes up to at least 100lb helpers, so, this should not be an issue... Go too much past this & you'd have to pull the t-bars & reindex them, which, almost makes it more feasible to either yank them for good, or, replace them w/stiffer units.. The latter is what I would do, but, to just add the 968 helpers should be fine... close enough to the front to handle any over/understeer issues w/sway adjustments...

zoxx2004

had a set on my 944S .They weren't harsh at all. you do have to index your torsion bars thou.

crushingday

How many hours for my mechanic to re-index the torsion bars? I would like to lower the rear just a touch as well.

Jason @ Paragon Products

The 968 M030 rear coilover Koni's were not adjustable for ride height so you may have something else...or at least they've been modified. As the folks have mentioned, to do it properly, you'll need to reindex your torsion bars to get the ride height correct. If you run a pretty soft spring (80#) you can many times get away with adjusting the eccentric bolt on the spring plate to the lowest postion and then install the coilover.

crushingday

is the reindexing of the torsion bar necessary to maintain the correct height? or is it more a matter of it's funtioning correctly without damaging anything?

Robby

It's only neccessary if you're running a high enough spring rate to where you don't have room to adjust w/the eccentric nuts... In other words, if you're running a lower rate spring, you should be fine by just adjusting the nuts- do not reindex unless you need too b/c it's quite labor intensive- I think it's ~8hrs & that is if you get it right the FIRST time... there are people who have had to go through it two & threer times, so, you could be in for a good 20hrs- although, a good Porsche mechanic should be able to at LEAST get it by the 2nd try... anyway, I have 100lb helpers & was very lucky in that my eccentrics were adjusted about as high as they could go- I had a full amount of travel & brought my car down ~1/2" from where it was, AFTER adding the helpers, AND, I STILL have almost 1/2" to go IF I want too... It really depends on where your eccentrics are & you wont know this until you get in there...