home register FAQ memberlist calendar

Go Back   Turbobricks Forums > Mechanical > performance & modifications

Reply
 
Thread Tools Display Modes
Old 04-01-2019, 06:58 PM   #1
klork
Board Member
 
Join Date: Apr 2017
Default 740 rear 4 link?

Has anyone done a 4 link for the rear of a 740 to get rid of te weak stock suspension.
klork is offline   Reply With Quote
Old 04-02-2019, 03:54 PM   #2
jwernerny
Board Member
 
jwernerny's Avatar
 
Join Date: Aug 2005
Location: Fairport, NY
Default

Kaplhenke Racing makes something interesting.


Start here: https://www.bneshop.com/collections/...0-900-subframe
__________________
--
John Werner
* 1992 944T * 1988 764 GLE V6 * 2002 WRX Wagon (needs motor) * 2006 Honda Odyssey *
jwernerny is offline   Reply With Quote
Old 04-02-2019, 06:19 PM   #3
klork
Board Member
 
Join Date: Apr 2017
Default

I have seen that. I would reinforce the stock piece before i did that. Its a nice piece but not spending over $500 on it.
klork is offline   Reply With Quote
Old 04-03-2019, 09:36 AM   #4
240wagonguy
Board Member
 
Join Date: Oct 2013
Location: Weare, NH
Default

Friend of mine is working on a bolt in 4 link for 7/9 chassis. Will likely test it on my car whenever he gets it done.
__________________
1985 740GLE sedan winter beater Cali car.
240wagonguy is offline   Reply With Quote
Old 04-03-2019, 10:58 AM   #5
klork
Board Member
 
Join Date: Apr 2017
Default

What is he doing to get around the fuel tank?
klork is offline   Reply With Quote
Old 04-03-2019, 12:13 PM   #6
jbab
Board Member
 
jbab's Avatar
 
Join Date: Feb 2012
Location: Palmdale, CA
Default

https://shop.klracing.se/sv/artiklar...n-740-940.html
jbab is offline   Reply With Quote
Old 04-03-2019, 02:30 PM   #7
klork
Board Member
 
Join Date: Apr 2017
Default

That needs more pictures to tell what is going on. Would be nice to see it bolted to the car.
klork is offline   Reply With Quote
Old 04-05-2019, 02:07 PM   #8
UrbanHillbilly
Board Member
 
UrbanHillbilly's Avatar
 
Join Date: Sep 2016
Location: Clawson, MI
Default

This is probably the best system that I've seen out there, but it's still using the stock rear axle:
http://www.retroturbo.com/?product=v...r-link-kit-txr
I went up to a Ford 9" in my car, reinforced the stock subframe, and bolted the axle to the stock trailing arms.... We'll see how it plays out.
__________________
1987 Volvo 745 Project, 1978 Volvo 242 B230F+T M46, 2018 F150
UrbanHillbilly is offline   Reply With Quote
Old 04-05-2019, 02:14 PM   #9
klork
Board Member
 
Join Date: Apr 2017
Default

I have an explorer 8.8 that I will be putting in. I am pretty sure the stock rear end will not hold up to around 400 whp and slicks.
klork is offline   Reply With Quote
Old 04-05-2019, 10:00 PM   #10
okoye
Board Member
 
okoye's Avatar
 
Join Date: Jul 2009
Location: west hartford, ct
Default

A guy I know is doing the 4 link on his 740. In order to do it properly the tank has to be replaced with a fuel cell because it would be in the way otherwise.
__________________
1991 Volvo 940se sedan m90 swapped, 17x10 oz fittistars, Bilsteins.
1994 Volvo 960 turbo b204ft m46

Quote:
Originally Posted by vagabond View Post
no one saw me with my little umbrella and sandpaper though.
okoye is offline   Reply With Quote
Old 04-07-2019, 06:41 AM   #11
klork
Board Member
 
Join Date: Apr 2017
Default

That's what I was wondering about. I really don't want to replace the fuel tank as this is going to be my summer daily.
klork is offline   Reply With Quote
Old 04-07-2019, 12:29 PM   #12
okoye
Board Member
 
okoye's Avatar
 
Join Date: Jul 2009
Location: west hartford, ct
Default

Only other option I can suggest is swapping a mk1 Irs from a 960 sedan. A few people have done it. All the points are there 89 + with the exception of one. But it’s a mod that if you do it you can’t really go back.
okoye is offline   Reply With Quote
Old 04-07-2019, 01:02 PM   #13
DET17
Reformed SAABaholic
 
Join Date: Nov 2009
Location: NW Georgia
Default

Quote:
Originally Posted by klork View Post
Has anyone done a 4 link for the rear of a 740 to get rid of te weak stock suspension.
Nathan did.... don't know if his 9 series still exists? I think his pics were all Photobuggered.
__________________
Project "cheap thrills" build thread: http://forums.turbobricks.com/showth...67#post4211467

Feedback thread: http://forums.turbobricks.com/showthread.php?t=198746
DET17 is offline   Reply With Quote
Old 04-08-2019, 07:35 AM   #14
klork
Board Member
 
Join Date: Apr 2017
Default

I have no desire to go IRS. Everything about IRS gets very expensive when stuff starts to break and you have to get better half shafts, stub shafts and center section. Been there done that.
klork is offline   Reply With Quote
Old 04-16-2019, 10:58 AM   #15
linuxman51
BRANDSCHUTZVORSCHRIFTEN!
 
linuxman51's Avatar
 
Join Date: Dec 2002
Location: mont, AL
Default

iirc nathan had an 8.8 in his car, not irs. he did a number of things with the rear suspension though.

so it all depends on what you're doing relative to what you need. a reinforced subframe and adjustable torque rods will go a looonng way. if you've got something with say.. v8 torque and sticky tires, you'll want to do some chassis reinforcements where the trailing arms attach, and probably upgrade the trailing arms. On a 7/9, the fuel tank is really kind of in the way, swapping to a spare tire well fuel tank would help the situation a lot.
__________________
"They bum rushed them in their own crib, they drank all their beer, they partied with their ladies and they left with the trophy"

Now with in-house Dyno tuning!

Megasquirt Tuning!
Plug and play LH 2.4 Megasquirt, now with stealth mode!
linuxman51 is offline   Reply With Quote
Old 04-17-2019, 11:18 PM   #16
Greg Wong
Board Member
 
Join Date: Nov 2002
Location: Boston/MA/USA
Default

John Dega had a V8 swapped 740 in One Lap of America a while back. He had a Ford 8.8, with a single ladder setup. I just have this one photo, and no more info. But it may give you some ideas.

Ford Rear
__________________
Homepage
90 245 V8
07 V70 2.5T
Greg Wong is offline   Reply With Quote
Old 04-17-2019, 11:31 PM   #17
55superbeetle
Board Member
 
Join Date: Jun 2009
Location: Modesto, Ca
Default

That's a torque arm style suspension. Commonly found on 3rd and 4th gen Camaro's. Pretty cool to see under a volvo, looks like a fox body 8.8 axle too.
__________________
83 242, Turbo 6.0 LSX, E85, TH400, 8.8, 10.3@135
55superbeetle is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


All times are GMT -4. The time now is 02:03 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.