blazing928

Hi
i have fitted a set of koni/hypercoils 500lb front and 350lb rear.
So far reasonably happy ,but as I installed the shocks set to the softest setting I find the car a bit bouncy. So I need ot adjust the rebound.

Any one have some setting ideas as to how many turns to set the shocks?
This would be for general road driving.

I have the shock adjust tool, but so far on one shock it gets stuck after only 2", so some thing else to work on......

ta
Nigel
87S4 AT

RKD in OKC

The way I determine my rebound adjustment is to find a big parking lot and...

Drive in a big circle. But not so fast the tires are making noise.

Rears
While turning brake hard. If the rear immediately lifts and tries to come around firm 'em up.

Fronts
While turning floor it! If the front immediately lifts and it understeers before the rears start spinning firm 'em up.

I personally like the rears full soft for quicker turn-in, but that means I do have to pay attention when braking hard as the rear will step out if the car is not straight. I like the fronts about half soft. This is good for the average corner, softer and it pushes with throttle application in a turn, firmer and it goes into power oversteer too readily on throttle application in a turn.

Otherwise just set em in the middle and see if you like it better. They are pretty easy to adjust and don't take much time.

Slantnose!

I'm running 700/400 and 3/4 turn from full soft seems nice for the street.

puyi

I amnot really sure, that respond to the answer. The fact is, the red konis are at softer position and the car rebounce. For me you have to determine if it is front or rear axle which is not as you want and then make 1 turn (360°) of the adjustments. So far, try the ca on the road and check the change.

For sure 500 & 350 is, IMHO, a little bit to hard for road use. Then , the capabilities of the shocks to absorb oscillation has to be higher than OEM suspension. So ar, the red, adjustable Konis are made to compensate, not the higher stiffness of the coils, but the softness due to use.

In a beautiful word, if that shocks had been made for the compensation of harder coils, you may adjust slow compression and quick compression

To respond to RKD, to my knowledge, as the suspension is harder, the motricity is lessen. That has to say, if the car is subject to understeering, you have to soften the front suspension or harden the rear.

Puyi

RKD in OKC

In steady state turning you are absolutely correct (apex of the corner). And yes, Koni says the adjustment is to make up for the dampeners becoming softer with age. However, the dampeners rebound adjustment do allow quite a bit of transition tuning. By transition I am referring to acceleration and braking not left right turn transitions. Front rebound affects acceleration and rear rebound affects braking.

The most obvious example of this is when adding power to exit a corner. While the car is well balanced through the apex it can have a tendency to understeer when you initially add throttle for corner exit. Firming up the front rebound will slow the initial lift of the front end and increase the power you can put down and carry out of the corner. The tighter the turn the slower you are going the more throttle application will lift the front and the more understeer you will get. You can also get the front too firm and then throttle application will result in rear wheel spin and power oversteer. You can adjust the rebound to get the highest speed depending on the average corner speed for that particular course. Smaller turns and firmer vs. bigger turns and softer.