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Independent Rear Suspension Forum » Wilwood disc and calipers conversion for Jag IRS » 4/28/2016 5:26 pm

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Daze,
I used a milling machine that had the X and Y axis feature. After centering the rotor on the table, it was just a matter of mathematically measuring over to each hole for the rotor. Then I mounted the rotor on a lathe to trim the diameter.
Ken

Independent Rear Suspension Forum » Wilwood disc and calipers conversion for Jag IRS » 4/28/2016 11:22 am

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No specific drawings to speak of. My CAD system consists of cardboard aided design. I used the original caliper brackets for bolt hole measurements and the new Wilwood caliper specs and put the two together.
Ken

Independent Rear Suspension Forum » Differential side brackets needed » 1/19/2014 9:58 pm

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Jim,
I welded up a pair from an XJS, (0 degree angle) and tried machining out a 3 degree angle in the weld material. I'm not a machinest by trade and found getting a hole made in that hard material difficult. I wasn't happy with the results and lucked out in finding a 3 degree set from an earlier Jaguar sedan. I'm not saying the drilling can't be done, just if you can find a set from a sedan, you're better off.
Ken

Independent Rear Suspension Forum » Hi new to jag install but can I use a 4 link bar system to locate LCA » 1/01/2014 9:23 am

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Gary,
I was in the same boat, limited space for the radius arm.
Mine is 19" long, 9 1/2" forward of the LCA pivot point. I couldn't make it any longer since as it is now, the forward pivot point of that radius arm is right against the back of the seat.
I'm using Heim joints both ends.
Ken
Photos:





 

Independent Rear Suspension Forum » Watts Linkage for Jaguar IRS » 3/02/2013 6:14 am

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Replies: 2

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Ralphy,
Your wish is my command.
For the bellcrank, I used the same bearing and pivot from the Jaguar LCA inner fulcrum. That's a Torrington B-146 needle bearing and a new bearing tube from Welsh Enterprises, part # C-17168-1. Two bearings in each bellcrank left me enough room for an o-ring on either side of them. The bellcrank was fabricated on a milling machine and precision bored to press fit the needle bearings.
Ken

Independent Rear Suspension Forum » Watts Linkage for Jaguar IRS » 3/01/2013 9:25 am

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 A while back, I was asked to provide more info on the watts linkage I fabricated for my Jaguar hubs. Here's a link to a journal on my project that I'm posting to over on the British V8 website. About 53 photos into it, you'll find the Watts Linkage and the LCA modifications:
http://tinyurl.com/bqyor6s






I'll be updating the journal periodically.
 

Independent Rear Suspension Forum » Jag rear in 1923 T-Bucket » 2/13/2013 8:42 am

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Replies: 5

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Hi Ray,
Contact Snow White:
http://www.snowwhiteltd.com/index.html
They've been doing this type of install for decades.
Ken

Independent Rear Suspension Forum » Torque Stays/Bars on Front & Rear of Jag IRS.... Opinions Wanted » 11/09/2012 10:26 am

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Fixed. I went with the original Jaguar dimensions for the upper coilover placements. I'm going to run the old coilovers I got with the IRS and then after determining my choice of springs, I'll invest in four QA1's that will allow me to adjust the ride height.

Independent Rear Suspension Forum » Torque Stays/Bars on Front & Rear of Jag IRS.... Opinions Wanted » 11/08/2012 9:58 am

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Yes, Radar, it does look heavy. I'm trying to be weight conscious on this project so I did what I could to keep things reasonable. The weights of 2x2x.083  and 2x2x.120 steel tubing are 2.143 and 3.050 lbs/ft respectively.

I took this photo of the chassis before I welded it to the front clip. The two side frame rails measured out to 34 lbs each and the rear frame section was 52 lbs including the differential mount plate and isolation assembly. That's a total of 120 lbs without the front clip.



This was 52 lbs.



So, I suppose the whole chassis frame, will come in at about 200 lbs. Then there will be a full cage on top of that.
Funny enough, this E-type IRS and custom chassis will go under an E-Type. A personal one off project.

Independent Rear Suspension Forum » Torque Stays/Bars on Front & Rear of Jag IRS.... Opinions Wanted » 11/08/2012 5:14 am

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Ralpy,
Bad choice of words by me, ( that's the internet for you). By, "the welds are a combination of", I meant they are one or the other, TIG or MIG.
I'll try to put together a collection of photos in a separate thread titled Watts Linkage.
Ken

Independent Rear Suspension Forum » Torque Stays/Bars on Front & Rear of Jag IRS.... Opinions Wanted » 11/08/2012 3:59 am

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Thanks Jim,
The welds are a combination of TIG and MIG, depending on whether or not there was a natural gap or not where the two points of metal met. My first project using TIG....... Fun stuff.
Here's the supplier for the torsion bar:
http://www.1speedway.com/Swaybar_Arms.htm
Ken

Independent Rear Suspension Forum » Torque Stays/Bars on Front & Rear of Jag IRS.... Opinions Wanted » 11/07/2012 11:35 am

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Yes, the first photo shows the radius arm and the second photo shows a bit of the watts linkage.
More photos? Well, I see in your other thread that you're putting together your differential mounts at this time. I considered the Snow White products but found they didn't suit my specific needs. This is what I came up with:







The project is in a mock up stage at this point but this is a photo of most of the IRS components in place:



The IRS in action:
http://www.youtube.com/watch?v=PImqtX1uZ2A

Independent Rear Suspension Forum » Torque Stays/Bars on Front & Rear of Jag IRS.... Opinions Wanted » 11/06/2012 6:00 pm

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More is better I always say....Ha Ha!
In regards to torque stays, I went with two pairs in the front and a pair in the back. They all use poly bushes and clevis's.

The first photo shows the two short horizontal ones and the ones going up and forward at 60 degress.



The second photo shows the two at the back going up at 60 degress. I figure I've got all my bases covered now.

Independent Rear Suspension Forum » Wilwood disc and calipers conversion for Jag IRS » 10/15/2012 4:46 pm

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The rotor is their 160-0471:
http://www.wilwood.com/Rotors/RotorProd.aspx?itemno=160-0471
The caliper is 120-6806:
http://www.wilwood.com/Calipers/CaliperProd.aspx?itemno=120-6806
The caliper  part number may change of course, depending on the front caliper and master cylinder used in each application.
I might have fabricated the rotor hat from aluminum but it would have involved many more hours for me on the milling machine and the lathe. Considering it's Unsprung Weight, I felt this was a good compromise.

Independent Rear Suspension Forum » Wilwood disc and calipers conversion for Jag IRS » 10/15/2012 5:57 am

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Here's a few photos of the Wilwood disc and caliper conversion I came up with. This also includes Wilwood's Spot Caliper, (parking brake).
I fabricated the disc brake "hat" from the original cast iron Jag disc brake. The main caliper bracket is steel and the spot caliper bracket is aluminum.



























Ken

Independent Rear Suspension Forum » IRS weight » 4/01/2012 5:29 am

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Replies: 3

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Boony404hp,
I don't know the actual weight but it's more than what two men and a boy can comfortably carry. Definetly floor jack material. You could pose the question over on the Jag-lover's forum and get a value of its weight.

I'm curious, did you want to know for shipping purposes or for reasons of weight distribution in the car?
Ken

Independent Rear Suspension Forum » Reversing/Flipping the LCA, Good or Bad Idea??? » 4/01/2012 5:20 am

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Replies: 11

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irstang,
You're quite right. My bad. I forgot to consider your mentioned characteristic of the LCA such that you can't just" flip it over". Welding a new bracket on the rear side of the LCA for the radius arm is a small task.

Thanks for the T Bucket link. I hadn't seen that discussion before. But I wouldn't necessarily agree that the Jag "bum", (differential), must be mounted using rubber bushings. That poster, tedabrown, may have just not gone far enough explaining that you need the compliance if you run your radius rods straight forward from the LCA rather than at an angle forward to line up with the inner LCA pivot point. That concept has been beat into our brains over and over again.

Anyway, 303Radar, does that help you at all?

Independent Rear Suspension Forum » Reversing/Flipping the LCA, Good or Bad Idea??? » 3/31/2012 4:35 am

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There's nothing wrong with running the trailing arm to the rear rather than the front. Ralphy posted this photo of an application that I,ve seen in my
own searches:


On page 3:
http://irsforum.boardhost.com/viewtopic.php?id=242&p=3

Have a good look at the products and installation example onSnow White's website. Study their installation instructions and view their "gallery". They've been doing these for 30 some years. The only thing we over here at the IRS Forum disagree with is their suggestion that the rear axle should angle downward towards the hub by 2 degrees.
Quote:
Normal Attitude For Jag 1/2 Shafts at Ride Height: 1/2 Shafts "Hang Down" Approximately 2 degrees (Outer Ends Lower Than Inner Ends)
That's a whole nuther discussion.
http://www.snowwhiteltd.com/products.htm
http://www.snowwhiteltd.com/instructions.htm
Ken

Independent Rear Suspension Forum » The Jaguar IRS picture thread » 3/30/2012 5:12 pm

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Quote:
Also check out the aluminum LCA's at 1:19 on this video.
http://www.youtube.com/watch?v=R09kFnr99dw&feature=related
End Quote

Ralphy,
Thanks for all the videos you've been posting. Great info and entertainment.

Regarding the one above that I'm quoting, I did check out that skookum aluminum LCA. It appears to me, they have a "radius arm" extending straight forward from the outer area of that LCA. That's a design to bind wouldn't you say?
Ken

Independent Rear Suspension Forum » The Jaguar IRS picture thread » 3/23/2012 5:44 am

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irstang wrote:

1965 Jaguar E-Type Lightweight-Style Vintage Racecar


I found this picture of a Jaguar lightweight racecar rear suspension set-up for racing on Hemmings.   This car is running the half-shafts horizontal with 3 degrees of camber.  Coil-overs are 825 pounds per inch.  I calculated 500 pounds/inch at the wheel on a 2350 pound car!  The description of this car is good reading: http://www.hemmings.com/classifieds/carsforsale/jaguar/e_type/1369722.html
I like the radius rods and carrier support.  The bearing air ducts are definitely cool.

Along the lines of that 1965 E-Type, here's another that I enjoy looking at:


http://www.fantasyjunction.com/cars/894-Jaguar-XKE%20Lightweight-Style%20Racecar-4.2%20Litre%20Dry%20Sump#

Independent Rear Suspension Forum » Finally finished my Jag rear end....now it's 48" wide! » 2/21/2012 5:31 am

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Doug,
Looks great! Nice package. That represents alot of effort there. The axles look stout.
I'm curious. Since the differential is set in the frame work in relation to the lower control arms, what pinion angle did you choose?
Ken

Independent Rear Suspension Forum » installing chevy 5.7 with T5 in 1971 xke » 2/16/2012 9:46 am

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Replies: 25

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"The vertical line of the stub axles stays the same doesn't it?"
Yes, that will all line up after the change of the side brackets.

"the upper differential mount in the cage would have to be reworked"
For sure, that would not be all that difficult. You're into it then though. Cleaning ,cutting, welding, the whole nine yards.







Hey, wf stryker, what do you think? This is your thread.
Ken

Independent Rear Suspension Forum » installing chevy 5.7 with T5 in 1971 xke » 2/16/2012 4:46 am

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Replies: 25

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Daze,
You're right there, the upper differential mount in the cage would have to be reworked. "Change one thing, you change another". Better to replace the cage and the side brackets.  It's not an issue with me as I'm fabricating my own IRS mounts but I'm sure stryker will not do that.

I've studied this subject to death off and on now for over a year and as Daze has said, there's different opinions out there on what route to go but I must admit, I haven't seen one person do a Jaguar IRS installation then rip it all all apart because of a drive line issue. I'll include some links here for whoever is interested in reading more about installing the Jag IRS, mostly in Hot Rods. Some of these posts are from Australia so get used to the metric measurements.
Starting off:
http://www.ozrodders.com/forum/viewtopic.php?f=2&t=39245
The second post down has a link to:
http://www.ozrodders.com/forum/viewtopic.php?f=2&t=13841&hilit=jig
The first post there has a link to:
http://www.uk-hotrods.co.uk/v2/tech/jag_rear/tech_jag.php
The forth post on this thread again has six links to further discusion on the subject:
http://www.ozrodders.com/forum/viewtopic.php?f=2&t=13841&hilit=jig

How did we do this before the internet?
Ken

Independent Rear Suspension Forum » installing chevy 5.7 with T5 in 1971 xke » 2/15/2012 7:25 am

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Replies: 25

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stryker,
I noticed you recieved some response over on Jag-lover's Lump forum. Good, the more opinions the better.
I thought I would add a few photos of those 3 degree side brackets.

Differential mounted on level chassis table


Close up view of 1963-1968 S-Type Saloon car side brackets


Partially assembled IRS


Resulting 3 degree climb of differential pinion

Ken

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