Lets talk suspension

[illSHOyou]

Its time to start thinking about next year and upgrades for the 89 Black SHO.

My Proposed setup:

Gen III Subframe
Aluminium Subframe Bushings
Custom 1/2 Aluminium Solid Motor Mounts
Reduced over-all weight
Gen III Front Sway Bar 22mm, 26 Rear Combo for neutral setup
16 x 7.5 Wheels with decent tires (TBD down the road)
Custom Strut Tower Braces Front/Rear
Subframe Connectors

Front Suspension:

Moog CC858 Coil Spring
915 lbs
142 lb/in spring rate
10.38 inch ride height
SensaTrac

Rear Suspension:

Moog CC839 Coil Spring
426 lbs
141 lb/in spring rate
12 inch ride height
SensaTrac

My aim is to produce a slight rake in ride height, and a fairly stiff setup to limit body roll. You may ask why not Ebiachs...? Just don't think there worth the $200.00 besides is there really a difference between the Moog and Ebiachs? Based on Kenny's (NotSoSlowSHO) writeup they seem pretty good and should be very stiff.

I choose out of the two sets of Moog springs to put the stiffer in the front, and the less stiff in the rear.

What are peoples opinions of this proposed setup?

Remember the weight of the finish product should be in the 3000lbs range. This car will never be loaded with luggage.

I also can cut weaker coils off the Moog springs, but I want to remain with good suspension geometry, plus the Sensatrac prefer near stock ride height. While lower would be nice for center of gravity this will be a street hotrod car primary. Setup for ultra stiff track would not be optimal for the street conditions.

I am also open to custom fab of other suspensions from other cars of near similarity...

Thanks

 

[K-Dawg]

That should work just fine, but your spring specs and ride heights don't really make sense to me.

 

[shospeed]

I didn't know that a subframe from a Gen III would fit on the Gen I with a V6 !!

 

[illSHOyou]

That should work just fine, but your spring specs and ride heights don't really make sense to me.

http://www.bonnefinstudios.com/kwb/automotive/tech/moogcc.htm

Based on Kenny's research.

 

[illSHOyou]

I didn't know that a subframe from a Gen III would fit on the Gen I with a V6 !!

It fits the 4 main mounting points, just not the motor mounts.

 

[Sho Amo]

with some modifications yes. Kelvin has one

yeah your 12in ride height doesnt make sense to me. 12 in from the ground would make your wheels really small, 12 in off the tire would be a 4x4.

 

[illSHOyou]

with some modifications yes. Kelvin has one

yeah your 12in ride height doesnt make sense to me. 12 in from the ground would make your wheels really small, 12 in off the tire would be a 4x4.

Apparently, thats the "installed" height...? Free height is like 16.8 inch in front, 15.38 rear.

I dunno, the info may be incomplete.

 

[shospeed]

It fits the 4 main mounting points, just not the motor mounts.

Ok.
What are the benefits of going to that frame vs the Gen I & II ?

 

[illSHOyou]

Ok.
What are the benefits of going to that frame vs the Gen I & II ?

Stronger over-all, less wheel movement (especially during hard lunching), less wheel hope, A arm instead of rod control or whatever they call it.

 

[SinisterSHO]

Ok.
What are the benefits of going to that frame vs the Gen I & II ?

honestly do a search, this has been covered a bunch in the last year.

 

[SHOtime2511]

your car with that spring set-up will ride high with massive wheel gap.

 

[St Louis SHO]

And for the record, those ride heights are actually supposed to be installed spring height.

 

[shospeed]

honestly do a search, this has been covered a bunch in the last year.

"You" don't have to answer if "YOU" don't want to !!!
That's what the forum is for to ask questions.
Not to be smart about it !!

 

[NotSoSlowSHO]

I dunno, the info may be incomplete.

Hardly. zzzzz

There are three things you are dealing with here.

FREE height

INSTALLED height

and

RIDE height



Do not confuse them. They are not the same.

And nowhere did I include ride height on my page. As this depends upon a few variables. Specifics like curb weight, strut mounts, tire size, etc.


Free height is the height of the coil spring prior to installing onto the strut.

Installed height is the height of the coil once installed onto the strut.

:wave:

 

[matasho]

"You" don't have to answer if "YOU" don't want to !!!
That's what the forum is for to ask questions.
Not to be smart about it !!

and its also what the search function is for, honestly its way too much info to hijack another thread with when you can find everything you need to know about a gen 3 subframe swap by doing about 20 minutes of your own research like we all did.............

clicky

http://www.shoforum.com/search.php

 

[shospeed]

and its also what the search function is for, honestly its way too much info to hijack another thread with when you can find everything you need to know about a gen 3 subframe swap by doing about 20 minutes of your own research like we all did.............

clicky

http://www.shoforum.com/search.php

Aint nobody hijcking anything !!
I just saw something I never heard of and asked about it !!
I know the search function.

Thanks.

 

[ManySHOs]

I don't know if this has been mentioned but if anyone is planning on doing a gen3 SF in the future, I would recommend searching for a 99 SLO subframe. There were some minor improvements to the 99's that might make it worth looking for. I didn't find out that the 99 may be more desirable until a week after I picked up my 98 SLO subframe. It wasn't until I finally welded the mounts up with a friend and looked at JEM's pictures more closely when I realized what the differences are. I was planning on making a separate post with pictures.

I'm still planning on using my 98 SLO subframe now that its finished. If I were starting from scratch, I would look for the revised subframe. FYI.

PS - JEM has always claimed that his SF is from a late 98. I'll make a separate post later with details if this has not been covered.

Ian

 

[illSHOyou]

Hardly. zzzzz

There are three things you are dealing with here.

FREE height

INSTALLED height

and

RIDE height



Do not confuse them. They are not the same.

And nowhere did I include ride height on my page. As this depends upon a few variables. Specifics like curb weight, strut mounts, tire size, etc.


Free height is the height of the coil spring prior to installing onto the strut.

Installed height is the height of the coil once installed onto the strut.

:wave:

I just didn't know the answer or how it applied. Whats your opinion of the proposed spring rates front to back? You did a awesome wright up and seem to know the most on the Moog springs...

 

[K-Dawg]

I just didn't know the answer or how it applied. Whats your opinion of the proposed spring rates front to back? You did a awesome wright up and seem to know the most on the Moog springs...

I don't think it really matters much, dude. They are all pretty similar and the only way you are going to determine which is best is through testing.

 

[JEM]

PS - JEM has always claimed that his SF is from a late 98. I'll make a separate post later with details if this has not been covered.

My understanding - Mr Hrinsin would surely know the exact break - was that it was a mid-'98 change, somewhere around 5/98.