HR front shocks

[Errol62]

Advice sought. Replacing front shocks in the sedan. Koni have an option of short or standard height shocks. The sedan looks to be around 2” lowered.
Please comment.


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[EK283]

What shocks are in it now ?

The shorter shocks are designed for lowered fronts and their valving is slightly different to cater for the stiffer spring.

Thats about as much as i can say without knowing what you already have, are they leaking or just soft on rebound ?

Greg

[Errol62]

You’ve answered my question thanks Greg. To answer yours, I don’t know what Trev has put in there. They are rebounding a bit and a bit soft for my liking.

Was it you that told me you bought some recently? If so where and how much?

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[EK283]

Clay,
I am using Monroe GT shocks for the Torana front end.
They cost around $180 and are very good.
The Torana shocks are shorter than HR and valved differently as well.
Not an easy comparison.
Normal street shocks mainly control rebound, unless you buy adjustable types. Assuming you want the shock to suit stiffer springs then you need better quality rebound, this stops the wallowing effect of too soft a shock.
If you know the rate of spring then the matching rebound is simple. If you don’t then you have to guess, that’s why you need to know what you have now to compare.
Probably made it worse for you now !!!
Greg

[Errol62]

These are adjustable. Much dearer of course. Thanks Greg. Someone I spoke to over east had got done recently.


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[EK283]

Couple more things, adjustable will only be on the rebound unless they are specialised shocks for racing purposes normally

You want the car to absorb the bump with little to no rebound, too hard and the wheel will bounce on the road as the car lifts because of the rebound delay.

If they are koni adjustable, they are what i use on my track car but i did have to send them away to have the valving for bump increased which is not normally used on a road car.

They are overboard for street shocks but you can dial them in if you think you need them, pricy and to be quite honest unecessary for a normal car.

Just to make your head spin a little !!!!

Greg

[Errol62]

Thank you oh wise one. I’m pretty sure they are the Kings KFHL-01 springs. Trev probably won’t know or remember. They are powder coated yellow, thicker than stock and quite a bit lower. I will look at the Monroe items for HR.


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[60Special]

You are right Clay, I don’t remember . It was a long time ago.

[EK283]

Im the same, know all ! but forget what ive done personally !!!!

Greg

[Errol62]

Some say KYB are better than Monroe. I’m going to a physical retailer when I get home as on line is very confusing. They only seem to have standard replacement for HR. In any case FB to at least HG are all physically the same. Probably through to HZ in reality.

Back in the day the first mod I ever did was put heavy duty shocks on my HK. No such thing as gas shocks back then.


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[Errol62]

Guess what
When I get home I will give all the shocks a bleed and bench test and see if the fronts match. I want to try and control dive as well as rebound.


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[EK283]

Probably the same on the front.

Looking back at some of my data regarding shocks, it appears the ratio for bump to rebound can be 1 to 3 or 1 to 4. Some of this info is hard to find.

The gas in a shock is designed to stop frothing of the oil when being used constantly. Gas shocks can help with front overall ride height but that is very minimal, you coundn't expect them to raise the front for example.

Best do what you have said and bleed them off, they may have failed but normally that would involve leaking oil.

Looking foward to your updates and testing.

Greg

[Errol62]

I have to say that my confidence in the front suspension on this car has been severely tested by the sheer number, size and depth of potholes in NSW, particularly in Ballina and Coffs areas. Taking your eye off the road service for an instant is liable to result in bottoming the suspension in the least.


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