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#977049 07/06/13 08:50 PM
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Jameson Offline OP
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So I ponied up and replaced my KYB shocks with a set of Bilsteins... what a world of a difference driving the car. Also my wheel hop from slipping the clutch hard is gone. So pleased with this decision.


1988 Monte Carlo SS Eaton 112 5.3/T56 swap, Way to many mods to list.
2015 GMC Sierra Denali



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Which springs are in there now? Rear only or all the way around on the shocks?


Lance
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Jameson Offline OP
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Still the same springs, new set should be hopefully here this week to play trail and error... New shocks all the way around , car feels so much better especially on crappy roads.


1988 Monte Carlo SS Eaton 112 5.3/T56 swap, Way to many mods to list.
2015 GMC Sierra Denali



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Is your car lowered? If so, springs/spindles/ both?

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This is good, I'm glad your happy.

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Jameson Offline OP
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Originally Posted By: cwest01
Is your car lowered? If so, springs/spindles/ both?


Springs, lower control arms and balljoints... 2.5 front and 1.5 rear



Last edited by Jameson; 07/06/13 11:06 PM.

1988 Monte Carlo SS Eaton 112 5.3/T56 swap, Way to many mods to list.
2015 GMC Sierra Denali



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I used lowering springs on mine and then installed a set of Nitro II drop shocks. Have thought about going to a set of Bilsteins but wasn't sure if they would work with drop springs only since the travel is so different.

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Seems to me I recall that the standard Bilsteins with drop springs wold be in the wrong working range and be less effective. I also was under the impression that with standard length shocks, the axle could potentially travel too much and the coil spring pop out?

If this isn't so, I would love to install a set but would need the correct part #'s to accompany my Belltech drop springs. They provided a 2" drop on all four corners.

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Jameson Offline OP
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My SPC lower a arms up front have different geometry then stock lower A arms... 3/4in of my drop is done by longer balljoints as well so my front shocks are within there working range, my rear springs have dead coils so it can maintain stock spring height in the rear and still drop the car so no they do not even come close to popping out of the rear.


1988 Monte Carlo SS Eaton 112 5.3/T56 swap, Way to many mods to list.
2015 GMC Sierra Denali



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OK thanks. Sounds like it would be best to stay with what I got......

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Originally Posted By: cwest01
Seems to me I recall that the standard Bilsteins with drop springs wold be in the wrong working range and be less effective. I also was under the impression that with standard length shocks, the axle could potentially travel too much and the coil spring pop out?

If this isn't so, I would love to install a set but would need the correct part #'s to accompany my Belltech drop springs. They provided a 2" drop on all four corners.


Recently did the old zip tie test on my stock length front shocks to test the travel.

Here is where the bottom of my shock is at ride height



and here it is after one autocross run



It pushed the zip tie all the way to the base of the shock but did not crush or break it. The bump stop ont he control arm stopped the travel before the shock bottomed all the way out.

This is with 2" drop springs and stock lower control arms.

I'm not happy with the limited travel and will be swapping the LCAs soon, but the stock length shocks are not a problem IMHO.


Lance
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Which KYB shocks did you have on your car? I recently installed a set of KYB Monotubes on my 72 Monte, 2" Bel-Tec springs up front, sagging stockers on the rear and they helped my car out a lot. They are a pretty stiff shock for normal driving.


1983 Monte Carlo SS Turnkey ZZ4/700R4, Dakota Digital Instrument Cluster, 77k mile car. Many more mods to come soon.
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Jameson Offline OP
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The white bodied KYB gas-a-just.... no they weren't air shocks, a reminder was they were installed on the car back in 08, had 4000 miles on them and then sat till I bought the car last year with no drivetrain.


1988 Monte Carlo SS Eaton 112 5.3/T56 swap, Way to many mods to list.
2015 GMC Sierra Denali



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Ok these KYBs I just bought have grey bodies.


1983 Monte Carlo SS Turnkey ZZ4/700R4, Dakota Digital Instrument Cluster, 77k mile car. Many more mods to come soon.
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Nice. Also glad to see you got that Monte out of the garage and running.


78 Malibu LT1/T56 build thread
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Bilsteins are good shocks. KYBs, not so much... The Bilsteins were the first to use deflective disc pistons to achieve digressive valving, which is ideal for performance street cars. The HD series are early 1st generation digressives but they`re still pretty good. Note that the Bilstein`s mono tube design does have one limitation though,the high pressure gas chamber and floating piston that seperates the gas from the shock oil take up some real estate in the tube of the shock. About 1.5" fully compressed. That means the primary shock piston can`t go there ie. you lose 1.5" of travel. Bilstein has chosen (wisely) to loose it in rebound rather than in compression. So in the rear of the car you lose 1.5" of travel, not a big deal and as mentioned above it keeps lowering spring from falling out at full droop. The front has a roughly 2:1 motion ratio though so 1.5" lost at the shock is nearly double that at the wheels. As a result you have to jack the lower A arms up to meet the shocks. You do lose a little performance at the drags where the full stock travel helps weight transfer/traction and one very rough roads you can top the shocks out. Due to the travel issues they work better on cars lowered with springs than on stock ride height cars (which top them out much easier). Lowering with springs (or coil overs or air bags) trades some bump travel for droop minimizing the effect of the lost travel.


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Marcus, if I understand correctly then, you would recommend the Bilsteins for my 86 SS that has been lowered only via Belltech springs? If so, what part numbers would you suggest??

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I've checked on the Bilstein website, and as far as I can tell, there are only 2 types of shocks listed for the G body vehicles. There is a HD shock for street driven vehicles, and a shock which is listed for race vehicles. I've ordered a set of the HD Bilsteins for my car. If there is another option available from Bilstein, I'd be interested in knowing about it.

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Are the Bilsteins position sensitive or just velocity sensitive?

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Cwest01, you want the HD series (now called B6). The AK series are circle track shocks. http://scandc.com/new/catalog/19
SSM, they're speed sensitive and slightly digressive.
As good as they are we move more Konis. For only a little more they have adjustable rebound dampening.


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When I had my 86SS lowered 2" front and back, I called Bilstein and asked them which shocks I can use with 2" drop. They said their shocks should not be used with a 2" drop and I believe they also indicated that 1" drop is also unacceptable but not 100% sure. But I know for sure that they do not recommend using their shocks for 2" drop. I wanted to use Bilstein but after speaking with them I decided to go with Belltech shocks instead.


86 Monte Carlo SS W/T-Tops 'Original Owner'
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Hotchkis offers a 1" drop coil, and Bilstein shocks with their own part number that is valved to match their drop coils.
The shock travel stops before unseating the coil.
Jegs has the hotchkis/bilstein shocks, but not Summit.
I have a 2"/1" drop, front is using SPC Lower A-arms (drop coils spacers are set to about 1" drop) and a 1" drop coil. Rear has 1" drop coils.


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just throwing it out there...I have toxic drop shocks on my front and theyre very nice for lowered cars


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Has anyone used the shocks designated for an 86 caprice taxi/police 5.7l for a firmer stock replacement option?

rock auto caprice shocks

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Originally Posted By: Silver8M86
Has anyone used the shocks designated for an 86 caprice taxi/police 5.7l for a firmer stock replacement option?

rock auto caprice shocks


Why would we do this when there is so many options out there specifically for our cars?


1988 Monte Carlo SS Eaton 112 5.3/T56 swap, Way to many mods to list.
2015 GMC Sierra Denali



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