Best way to lower IRS on a street buggy?

DSC

Ok I'm a newb so go easy on me.
I would like to be able to lower the rear end about 1 1/2" or 2" What is the best way to go about this.
Has anyone used the adjustable spring plates? I do not want to fool with adding adjusters to the torsion so what are my options? If anyone can supply me with any links with info or simply tell me what I need to do it would be a big help.

Thanks for any advice.

Dave
_________________
1993 RX7 pT-67 .81 a/r
1308cc Two Rotor motor
430rwhp@16psi
Street Buggy currently under construction.

HamburgerBrad · Posted: Tue Jan 03, 2006 4:04 pm Post subject:

rear suspension is cheap and easy. take it apart, put it back together and re-index the torsion bars. there's plenty of tutorials all over the internet on how to do that.
_________________
OGST | CU05 | OGJHC
1970 baja|1953 oval

Wanted: two beat up, ugly, curb rashed 6" phone dial wheels

DSC · Posted: Tue Jan 03, 2006 4:06 pm Post subject:

DSC · Posted: Tue Jan 03, 2006 8:23 pm Post subject:

Well I looked around quite a bit here and on the web and did not find much of anything about disassembling the rear suspension and re-assembling it in a lower position. Where is this plethera of tutorials you speak of crazy man.. Razz

_________________
1993 RX7 pT-67 .81 a/r
1308cc Two Rotor motor
430rwhp@16psi
Street Buggy currently under construction.

HamburgerBrad · Posted: Tue Jan 03, 2006 8:56 pm Post subject:

here is what i found with two minutes and Google

http://laudeman.com/bug_spring_plates.html

http://sandlizrd.baja.com/rearlift.htm
_________________
OGST | CU05 | OGJHC
1970 baja|1953 oval

Wanted: two beat up, ugly, curb rashed 6" phone dial wheels

buggyblues · Posted: Tue Jan 03, 2006 9:05 pm Post subject: irs

http://www.meyersmanx.com/garage/garage_suspend.htm

this is the only one I know off move the outside spline up to lower I just did mine last weekend and recomend buying the 20 dollar tool or borrowing it from a friend. If you look at the early pics of my car from the back it looks way out of wack we actually only moved it one notch to level it out. which I should have pics soon of that also.

hope this helps
_________________
www.sticklestowingpittsburgh.webs.com
towing east coast

DSC · Posted: Tue Jan 03, 2006 9:40 pm Post subject:

Brad I read the second link when I searched originally but with it describing a lift it was perplexing my little pee shooter sized brain as far as making sense of it in a lowering application. The first one seems better and the manx club link is good too.

Thanks fellas.
_________________
1993 RX7 pT-67 .81 a/r
1308cc Two Rotor motor
430rwhp@16psi
Street Buggy currently under construction.

HamburgerBrad · Posted: Tue Jan 03, 2006 9:47 pm Post subject:

instead of adjusting spring plates down, you adjust them up.
_________________
OGST | CU05 | OGJHC
1970 baja|1953 oval

Wanted: two beat up, ugly, curb rashed 6" phone dial wheels

DSC · Posted: Tue Jan 03, 2006 9:53 pm Post subject:

yea, no I get that now. My concern is that they all say the torsion is load with a shit load of force etc. So they say not to let the torsion bar come loose from the inside of the car but to slowly let the force slip the spring fall down ( to raise) the car. I'm wondering how hard it is to force the swing plate upward (opposite to lower the car) since it will be putting more load on the torsion bars right?

Sounds like heim joints and coil overs would be easier. Laughing

J/k
_________________
1993 RX7 pT-67 .81 a/r
1308cc Two Rotor motor
430rwhp@16psi
Street Buggy currently under construction.

buggyblues · Posted: Tue Jan 03, 2006 10:09 pm Post subject:

If you can get the tool from someone you will set the torsion use a jack a couple clicks and then use the tool to take the swing arm back up until its above the lip and knock it the rest of the way on. oh I just reread your response and what they mean by don't let the inside come free is the torsion bar is slid in place and set on the inside aswell as the outside just make sure it doesn't come all the way out. You just want the spring plate to come off.
_________________
www.sticklestowingpittsburgh.webs.com
towing east coast

HamburgerBrad · Posted: Tue Jan 03, 2006 10:10 pm Post subject:

the tool isnt really necessary to lower a car from my own experience. its handy for raising it though. however, it has been a few years since ive needed to use one
_________________
OGST | CU05 | OGJHC
1970 baja|1953 oval

Wanted: two beat up, ugly, curb rashed 6" phone dial wheels

buggyblues · Posted: Tue Jan 03, 2006 10:15 pm Post subject:

I'm a novice guy but I've done it both ways once and didn't have a great time without the tool but it did work. This weekend with the tool was so easy and problem free that's the reason why I recomended if he could borrow it but that's correct you don't need it.
_________________
www.sticklestowingpittsburgh.webs.com
towing east coast

merc · Posted: Wed Jan 04, 2006 12:17 am Post subject:

You can always run down to the local lumber yard and buy bricks. 200-300 pounds ought to drop it down there for ya... Wink

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