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Old 08-31-2014, 11:09 AM   #1
mark244turbo
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Default 740 coilovers, stock struts or V90 struts?

I want to convert the suspension of my volvo 745 to coilovers.
The guys in Sweden seem to prefer the V90 struts for building coilovers.
But i can't find out why they prefer the V90 struts over 740/940 struts.

Is that because then you can fit the V90/850/V70 wheels without spacers?
Is it because you can use shorter volvo 850 shock inserts?
Does it give better steering geometry?
Better brakes?
Stiffer swaybars?
Or is it because of the better availability of 850/v90/s90/v70/s60 etc coilover kits.

And what does it take to convert a V90 strut to fit a 740/940?

I found this post on T-bricks, but that doesn't clear it all up for me:
http://forums.turbobricks.com/showthread.php?t=154254
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Old 08-31-2014, 11:35 AM   #2
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He's using my coilovers and adjustable strut mounts to make it work

http://www.kaplhenke.com/collections...-960-coilovers

Honestly there's really no advantage to changing over to that style. It's just different. Ear spacing on the brakes are the same.

You can use the strut mounted sway bar endlink.
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Old 08-31-2014, 01:39 PM   #3
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Ben thanks for the quick reply.

I've been comparing the front suspension pictures of the 940 and 960/v90 on volvopartswebstore.
It seems like the strut and spindle of the 960 are bolted together, while the 940 has a one-piece strut/spindle assembly. That may be the reason why some people prefer the 960 struts.

Are the 740 and 960 struts interchangable?

Last edited by mark244turbo; 08-31-2014 at 01:46 PM..
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Old 08-31-2014, 01:46 PM   #4
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Originally Posted by mark244turbo View Post
Ben thanks for the quick reply.

I've been comparing the front suspension pictures of the 940 and 960/v90 on volvopartswebstore.
It seems like the strut and spindle of the 960 are bolted together, while the 940 has a one-piece strut/spindle assembly.
You are correct, 960 uses a 2 bolt flange and 940 uses an insert.

6 of one, half dozen of the other. Personally i think the insert setup can be a little smarter, stronger, and lighter. The down side is it is more labor intensive when you need to work on it but how often are guys changing shocks? Every 50k or around here probably 150k ?
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Old 08-31-2014, 02:09 PM   #5
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Looking at my front suspension i'd say every 200k.
The suspension was in great shape when i bought the car from the first owner (a 65 year old lady).
But i guess i have another driving style, old parts wear fast if you drive fast.
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Old 09-08-2014, 12:55 PM   #6
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Please more info on this post! Have a 1987 volvo 745 as well trying to do coilovers in the next month or two
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Old 09-09-2014, 12:11 AM   #7
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Every picture I have seen there welded. Is there a bolt on kit? If I do weld it do you have to heat up the cast metal first? Sorry I'm new
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Old 09-09-2014, 04:17 PM   #8
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Quote:
Originally Posted by Seezack View Post
Please more info on this post! Have a 1987 volvo 745 as well trying to do coilovers in the next month or two
I stumbled upon a thread from Dalleracing on Garaget.org, where he describes into details how he build his coilovers for less than $ 150 each. It is in Swedish, but very picture heavy, almost self explaining.

He used:
Standard struts
Universal 2" coilover kit (around 6" long)
600lbs 7" long springs (front)
standard shocks
Angle grinder with sanding disc + welder.

For the back i think he used 7" 500lbs springs with 4" 4lbs helper springs to keep the springs in place when you jack up the car (to make it road-legal).

I wonder how harsh the ride will be with 7" short 600lbs front and 7" 400-500lbs rear springs and stock shocks. And how long the shocks will last.

Last edited by mark244turbo; 09-09-2014 at 04:22 PM..
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Old 09-09-2014, 05:52 PM   #9
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Quote:
Originally Posted by mark244turbo View Post
I stumbled upon a thread from Dalleracing on Garaget.org, where he describes into details how he build his coilovers for less than $ 150 each. It is in Swedish, but very picture heavy, almost self explaining.

He used:
Standard struts
Universal 2" coilover kit (around 6" long)
600lbs 7" long springs (front)
standard shocks
Angle grinder with sanding disc + welder.

For the back i think he used 7" 500lbs springs with 4" 4lbs helper springs to keep the springs in place when you jack up the car (to make it road-legal).

I wonder how harsh the ride will be with 7" short 600lbs front and 7" 400-500lbs rear springs and stock shocks. And how long the shocks will last.
More or less same article/instructions here: http://forums.turbobricks.com/showth...ight=coilovers
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Old 09-09-2014, 05:55 PM   #10
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Quote:
Originally Posted by mark244turbo View Post
I wonder how harsh the ride will be with 7" short 600lbs front and 7" 400-500lbs rear springs and stock shocks. And how long the shocks will last.


absolutely horrible, who cares how long they last if its ****?
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Old 09-10-2014, 10:05 AM   #11
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For european guys its cheaper to order from Compbrakeracing.. those sleeves also fit the strut without grinding and they cost only half the price rallyshop.se wants to have
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Old 09-11-2014, 12:14 PM   #12
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Quote:
Originally Posted by blkaplan View Post


absolutely horrible, who cares how long they last if its ****?
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My coilovers have rolled a few miles now and think they are absolutely perfect. Hard but not as cut springs. And we have pretty bad roads (E4a) here, so you will not be disappointed with 600lbs together with Saab 900 G & M shocks.

Regards / Lindggren

This is what i build.

Shortened strut 40 mm
Saab 900 NG G&M shocks*
7" springs
600 lbs springs
0.7lbs helper springs
These guys seem to actually like it!

*Saab 900 New Generation (1994-1998). Little info on the G&M shocks. They are often sold as a kit together with lowering springs, so i guess they are shorter and stiffer.

Last edited by mark244turbo; 09-11-2014 at 12:20 PM..
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Old 09-12-2014, 01:49 AM   #13
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Hope i am not annoying anyone on here with my questions.I found these bc coilovers . http://shop.j-spec.se/en/artiklar/bc...e-_-drift.html and like the quality (so i think there quality) and how easy they install. all i have to do is weld them in place. you can get the same coilovers on e bay for $1000. i think all i would have to do would be to change the 1987 spindles to a 91 and newer correct? would the 91 spindles bolt right on?

any info would help
thanks
nick siczak

aka newbee
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Old 09-12-2014, 02:55 AM   #14
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Quote:
Originally Posted by MadDog_945 View Post
For european guys its cheaper to order from Compbrakeracing.. those sleeves also fit the strut without grinding and they cost only half the price rallyshop.se wants to have
Which ones did you use? 2.25" or 2.5" spring platforms?
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Old 09-12-2014, 03:13 AM   #15
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2.5 4 sure 2.25 wont fit the strut in no way... look in my racecar thread for more infos.. i've documented the steps
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Old 09-12-2014, 06:23 AM   #16
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Thanks, I suspected as such. Will have a look through your thread.
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Old 09-13-2014, 11:07 AM   #17
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The strut itself has an 2.08" (52 mm) outside diameter and 1.85" (47 mm) inside diameter. So it's best to start with a 2.08" or bigger ID coilover sleeve.
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Old 10-13-2014, 08:08 PM   #18
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Default 7 and 9 series coilover kit

Check out this full front and rear coilover kit for less than $1500 USD

http://forums.turbobricks.com/showthread.php?t=301511
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Old 10-13-2014, 09:04 PM   #19
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Quote:
Originally Posted by Drift Brick View Post
Check out this full front and rear coilover kit for less than $1500 USD

http://forums.turbobricks.com/showthread.php?t=301511
price is right in line with the kaphlenke parts. His kit might even be cheaper if you already have good shocks/struts.
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Old 10-13-2014, 10:12 PM   #20
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Originally Posted by thelostartof View Post
price is right in line with the kaphlenke parts. His kit might even be cheaper if you already have good shocks/struts.
Ben also allows one to pick the spring rates like a true race or performance application deserves...not a one-size-fits-all setup.
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Old 10-16-2014, 10:18 AM   #21
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Quote:
Originally Posted by thelostartof View Post
price is right in line with the kaphlenke parts. His kit might even be cheaper if you already have good shocks/struts.
Quote:
Originally Posted by Mueller View Post
Ben also allows one to pick the spring rates like a true race or performance application deserves...not a one-size-fits-all setup.
Not to mention Ben is a part of the community.
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Old 10-16-2014, 01:26 PM   #22
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Quote:
Originally Posted by Mueller View Post
Ben also allows one to pick the spring rates like a true race or performance application deserves...not a one-size-fits-all setup.
You can order the one size fits all, or for free you can pick your spring rate and dampener.

BC let me pick my spring rates, after doing some math with me over the phone of my cars weight front to rear, as well as which engine set i will be using (1jz straight 6 turbo)

we came up with 7kg front with stiff 6kg rear springs. For drifting these spring rates will do nicely, for road racing or rally this might be a **** setup, ill leave that for discussion for the people who do rally or autox.
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