anyone else running coilovers on the back of an LJ-LC? what spring rate are you runing if you are?
Edited by why-psi, 13 May 2007 - 08:45 PM.
My Pro street style rear end
Started by
_why-psi_
, May 08 2007 10:37 PM
369 replies to this topic
#26
_why-psi_
_why-psi_
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Posted 13 May 2007 - 08:44 PM
anyone else running coilovers on the back of an LJ-LC? what spring rate are you runing if you are?
#27
Stedz_lc
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Posted 15 May 2007 - 09:08 PM
did u use orig shocker mounts or no room too?
#28
_why-psi_
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Posted 15 May 2007 - 10:15 PM
original shock mounts wont let a big tire wheel combo. so i welded a crossmember between the 2 rails and welded brackets to that for the top and welded adjustable brackets to the diff
#29
_the gts_
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Posted 15 May 2007 - 11:19 PM
Thanks for the pics and info. Tubs are next on my list when motor is in.
did you buy the sheet metal for the tubs or make up yourself?
did you buy the sheet metal for the tubs or make up yourself?
#30
_why-psi_
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Posted 16 May 2007 - 12:34 AM
i used my old bonnet for the sheetmetal 
#31
_lctorana71_
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Posted 19 May 2007 - 11:13 PM
hey loks good, have u go any external shots of the car? wats next on the list of things to do on her?
#32
_why-psi_
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Posted 20 May 2007 - 01:57 AM
no finished external shots yet. next on the list is the alloy fuel cell, more braided lines and fittings, HQ front brakes, find a diff centre for the 9inch and shorten tailshaft
#33
Bart
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Posted 20 May 2007 - 12:12 PM
Perhaps you should chat to dattoman about brakes before you go out and buy the HQ type. I have HQ on my LJ and they are fine, but its good to see if there are other options 
i suspect commodore discs are better??
i suspect commodore discs are better??
#34
gtrboyy
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Posted 20 May 2007 - 03:22 PM
Chat to dattoman,i used commodore brakes & liked them better than the hq brakes had on before.
Did find out the spring rates to use,the ones I had on the back of mine are way too stiff.
Did find out the spring rates to use,the ones I had on the back of mine are way too stiff.
#35
_why-psi_
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Posted 20 May 2007 - 08:18 PM
cool, havent found out what spring rate yet, i was thinking 200lb? this sound right???
#36
gtrboyy
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Posted 21 May 2007 - 04:10 PM
Just looked at mine 250lbs,way to stiff lol.I think it had 160-180lb springs in it before,problem with those was that the car would squat too much & the tyres would rub on the guards.
It did however hook up/launch better with the softer springs.I was told that I should have had the car corner weighted or something to find out the correct poundages for springs to use.
It did however hook up/launch better with the softer springs.I was told that I should have had the car corner weighted or something to find out the correct poundages for springs to use.
#37
_why-psi_
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Posted 22 May 2007 - 12:25 AM
cheers gtrboyy, i think im gonna go with the 200lb springs. anyone got other ideas befor i order them?
#38
_JBird_
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Posted 23 May 2007 - 11:07 PM
Whats the biggest wheel and tyre combo you can run?
#39
_why-psi_
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Posted 23 May 2007 - 11:21 PM
should be able to fit a 15x10 and 285 wide tires
#40
_why-psi_
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Posted 27 May 2007 - 05:56 PM
I finished the mount for the fuel cell today 
i did it this way so i can go back to a standard tank if i need to
i did it this way so i can go back to a standard tank if i need to
#41
_Bedford_
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Posted 03 June 2007 - 08:34 PM
Nice work on those tubs.
I'd decided not to tub my LC, but you just make it look easy... hmmm...
hehe.
Couple of quick questions for you...
What state you from?
What engine you running?
Did you buy your 9 inch new, or 2nd hand, and is it standard length or shortened?
I'd decided not to tub my LC, but you just make it look easy... hmmm...
hehe.
Couple of quick questions for you...
What state you from?
What engine you running?
Did you buy your 9 inch new, or 2nd hand, and is it standard length or shortened?
#42
lakeside
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Posted 03 June 2007 - 10:34 PM
why-psi, whats the engineer thinking of it?
#43
_why-psi_
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Posted 04 June 2007 - 11:21 AM
im from sydney. im running a 202 at the moment, the new engine wil be a 202 with sequential EFI, no distributor, and 6 throttlebodies.
i got my 9 inch second hand. its been shortend to suit the LJ and is a bit wider than standard ( its to suit commodore offset wheels)
i am going to get it shortened another 3 inches either side though.
just decided to add a bar for bracing the coilover brackets
i got my 9 inch second hand. its been shortend to suit the LJ and is a bit wider than standard ( its to suit commodore offset wheels)
i am going to get it shortened another 3 inches either side though.
just decided to add a bar for bracing the coilover brackets
#44
gtrboyy
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Posted 04 June 2007 - 11:57 AM
what is your diff width?
I think mine is 1370 from memory,wider than lc/j to fit my vt grange rims.Wish I had gone a bit narrower now so I could have tucked the wheels under the wheel arches more as there is no way I want to modify the std arches as I like the way they look std.
I think mine is 1370 from memory,wider than lc/j to fit my vt grange rims.Wish I had gone a bit narrower now so I could have tucked the wheels under the wheel arches more as there is no way I want to modify the std arches as I like the way they look std.
#45
_why-psi_
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Posted 04 June 2007 - 12:04 PM
not too sure bit its also around about 1370. craft diffs are going to charge me 550 to chop 3 inches off each side. that way i can have the wheels in the gaurds and fit the 15x10s.
#46
_why-psi_
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Posted 03 July 2007 - 03:46 PM
fuel cell and springs arrived today
now just gotta plumb the fuel cell and its just about done
now just gotta plumb the fuel cell and its just about done
#47
_JBird_
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Posted 03 July 2007 - 04:17 PM
Nice.
What are your mounts made out of? What size steel.
What are your mounts made out of? What size steel.
#48
_big_als_army_
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Posted 03 July 2007 - 05:50 PM
Nice work there mate. Mini tubs with coil overs for <$1k, thats just unheard of! I like the way you have done it by modifying and adding to the original steel instead of just chopping the whole lot out and going for pre-rolled sheet tubs. Whats your background in relation to the welding and sheetmetal work you've done or have you just picked it up along the way? Did you do the cage too?
If you take that diff to Craft to get shortened, that will be the 3rd time they have modified it! I got ladder bar brackets taken off it and standard LC/LJ mounts put on originally, then they mucked it up and one side was out so they re-did it. If you are going to run 15" x 10"s with 275's or whatever, I'd consider getting new billet axles made up with thick flange plates and 1/2" studs. I can see you twisting an axle and/or shearing studs pretty easily.
If you take that diff to Craft to get shortened, that will be the 3rd time they have modified it! I got ladder bar brackets taken off it and standard LC/LJ mounts put on originally, then they mucked it up and one side was out so they re-did it. If you are going to run 15" x 10"s with 275's or whatever, I'd consider getting new billet axles made up with thick flange plates and 1/2" studs. I can see you twisting an axle and/or shearing studs pretty easily.
#49
_Monkey_
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Posted 03 July 2007 - 06:01 PM
Good advice.If you are going to run 15" x 10"s with 275's or whatever, I'd consider getting new billet axles made up with thick flange plates and 1/2" studs. I can see you twisting an axle and/or shearing studs pretty easily.
I run a 275 tyre and twisted some stockies now have 31spline mosers, problemo solved
#50
_lctorana71_
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Posted 03 July 2007 - 11:46 PM
hey mate looks real nice, do you think the 200Ib spring is the go or is it to stiff??
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