PDA

View Full Version : Rear Camber Adjustment System for IRS 80s Toyota's



bigm
21st June 2010, 07:57 PM
Hey Guys,

I recently designed (nothing new really) and got made a weld on application that gives camber Adjustment to 80's IRS Toyota's.

The System Requires you to cut the outer rear low control arm mount on the Subframe (needs to be removed) and weld on the new bracket.

The Use of a offset bolt/washer is used to adjust the camber.


Supplied in the Kit is:
- Bracket with a milled section to suit the elongated bolt and tabs to keep the bolt in place when adjusting.
- 8.8 grade high tensile bolts Machined to suit the Custom CnC washers. Also includes nuts to suit..
-All Welding is TIG and completed by an engineer.
- Washers and brackets are made from 5m thick steel


Options
- With this kit i can change the toe range that can be adjusted (if this is over your head i will provide you with stock) The pictures below bring the toe to neutral at the lower height. Standard toe setting is achieved by machining the elongated hole more towards the subframe.

Pictues
Installed in Car
http://i290.photobucket.com/albums/ll246/overgrownbigm/Rear%20Camber%20Adjustment/P1080271.jpg

The Adjustment Bolt
http://i290.photobucket.com/albums/ll246/overgrownbigm/Rear%20Camber%20Adjustment/P1080273.jpg
http://i290.photobucket.com/albums/ll246/overgrownbigm/Rear%20Camber%20Adjustment/P1080274.jpg

The bracket
http://i290.photobucket.com/albums/ll246/overgrownbigm/Rear%20Camber%20Adjustment/P1080275.jpg

Maximum Camber
http://i290.photobucket.com/albums/ll246/overgrownbigm/Rear%20Camber%20Adjustment/P1080276.jpg

Minimum Camber
http://i290.photobucket.com/albums/ll246/overgrownbigm/Rear%20Camber%20Adjustment/P1080277.jpg

At this height for reference
http://i290.photobucket.com/albums/ll246/overgrownbigm/Rear%20Camber%20Adjustment/P1080278.jpg


The Kit gives approx 5degrees of adjustment (i think more but yet to get an alignment), The range of adjustment depends on where the bracket is welded. Set square used as reference for camber in pictures

I will get some pictures tomorrow of them installed on my car.

All up the process cost me just shy of $200 in materials, engineer labour and CNC machining. I realise it will cost less the more i get made, I think a fair system is a $100 deposit and the balance when the product is complete before shipping, This will ensure i'm not left out of pocket and the savings are passed on to you.

Post up here if you are interested.

Post up any questions here so other can see.


Cheers Guys


People In
Biggo
macca1590
john (xsoarerx)

keiichi
21st June 2010, 09:19 PM
awesome!
would buy for sure if i had irs.

bryzilla
22nd June 2010, 12:59 AM
Same thing?

http://forums.celicasupra.com/showthread.php?t=39419

biggo
22nd June 2010, 08:53 AM
Put me down.

Do you have any pics of your subframe and after car shots

bigm
22nd June 2010, 10:44 AM
Same thing?

http://forums.celicasupra.com/showthread.php?t=39419

No Not the same thing.


I have made the whole system using new parts. Differences between the kits.

My Kit has approx 20mm More adjustment - which means bigger range of camber adjustment.
The other kit requires modification to the bush (the toe bolt being used is bigger than the one used on the outer rear control arm mount) This kit is bolt in and uses the same size bolt. 8.8 Grade High tensile to ensure strength, did not use a higher tensile bolt as they will snap before they bend.



First Post Updated with more information and pics

marvis
22nd June 2010, 11:56 AM
Awesome!

bryzilla
22nd June 2010, 08:09 PM
Cool thanks for clarifying :)

Might have to hit you up after I fit my wheels if I need to dial out some camber.

bigm
23rd June 2010, 10:04 AM
All good mate

When a few people are keen will do a batch

macca1590
23rd June 2010, 11:49 PM
ill take a set too

bigm
24th June 2010, 09:08 AM
OK thanks mate. Ill add you to the list.

Will order in say 3 weeks? so you would have them in 4?

driftke70
24th June 2010, 06:24 PM
good stuff, will be recommending to a few people for you.

AJPS
24th June 2010, 07:12 PM
yeah few dudes in adl could use it, ill let people know

bigm
24th June 2010, 09:45 PM
Thanks Beal and Dave

The more made the cheaper it is.

xsoarerx
25th June 2010, 01:04 PM
so its just the outer non adjusable mount you replace with this one? and the inner one which is already adjustable is left?

you know im down... i'd even get two pairs.

also in thoes pics did you have the inner set to max positive to show the range of the new bolt or is that combined...

just wondering for thoes of us who want more than -5 deeg. of camber :P

bigm
25th June 2010, 11:13 PM
The pictures are with the new bracket/cam bolt at full adjustment either way. Yes it just the outer for adjusting camber, the inner is for adjusting toe.

You could make it have approx 10degree neg camber (or More) my mounting it higher (towards the floor pan, clearance issues though) but that would sacrifice how close to Zero you could go.

bigm
2nd July 2010, 03:36 PM
Bump for those keen

Will order on the 14th of June.

Will PM those interested closer to confirm/exchange details

bryzilla
2nd July 2010, 05:22 PM
What's the final price looking like with those interested? Also how involved is dropping the subframe (in comparison to say a IRS nissan which I've done plenty of times :P)

bigm
5th July 2010, 10:09 PM
I would guestimate $150 ish but hard to say, hence the 100 deposit and final amount afterwards.

As for removing the subframe.

Remove half shafts
Remove handbrake cable and brake lines
Remove Rear arms
Undo 4 bolts that hold the frame inplace

great sucess

Hachi_Tom
5th July 2010, 10:58 PM
matt, do you mean youll order on the 14th of july not june??

bigm
6th July 2010, 09:07 AM
Sounds better haha. cheers bloke

10000rpm
7th July 2010, 04:43 PM
Hi mate...

Put me down for one set please...

pm me payment details.

Regards

Scott

bigm
7th July 2010, 07:01 PM
Hi Scott

Ill send you a pm when im home. Tommorow most likley

Cheers

McLeod63
7th July 2010, 08:13 PM
Please excuse the noobish question, but would this suit an 86? Because I'd love negative camber on mine. And what exactly is an IRS Toyota?

xsoarerx
7th July 2010, 09:19 PM
short answer: No.... No... ahhhh... no

Long answer: lol... not to be mean, but i dont even know where to start to tell you how far off you are on that one.

keiichi
7th July 2010, 09:41 PM
Please excuse the noobish question, but would this suit an 86? Because I'd love negative camber on mine. And what exactly is an IRS Toyota?

ae86 does not have IRS.... irs stands for independent rear suspension, yours is live axle, have a squidge under your car you'll see what I mean :)

bigm
11th July 2010, 01:16 PM
Pm'd those who expressed interest

McLeod63
12th July 2010, 09:44 PM
Haha, ohhhh. So...no way of neg offset with any other kits?

bigm
13th July 2010, 04:46 PM
This will not work with your ae86 - There is no 'kit' to Give Live axle cars (ae86 Included) Camber as they are solid diff, Have a look at your car and think about it.

This kit has nothing to do with 'offset' only 'camber'.


Just waiting on a PM back from Scott (10000rpm) and we will be good to go.

10000rpm
16th July 2010, 10:36 AM
Deposit made...

Thanks mate

bigm
16th July 2010, 02:29 PM
To Easy

Will go to the engineer on Monday

McLeod63
17th July 2010, 10:00 PM
Woops, Camber is what I meant to say, not offset. Anyway, thanks for answering my question.

biggo
3rd August 2010, 08:30 PM
Any updates?

bigm
4th August 2010, 04:09 PM
First Engineer rang today (2 week turn around time). Will grab them tomorrow and go the the other engineer. should be mid next week. Sorry for the extended process guys

bigm
9th August 2010, 06:31 PM
Update

Picked up cam bolts from one engineer. Dropped the materials off at the other engineer to cut,weld and machine.

Should be done next week.

Ill PM you all when they are done

Cheers

bigm
12th August 2010, 10:47 PM
production is complete.

PM'd all involved.

One spare is available, PM me if your interested.

bigm
15th September 2010, 04:03 PM
Final Product

http://i290.photobucket.com/albums/ll246/overgrownbigm/P1080717.jpg

Can do Another batch but need atleast 5 people and money upfront

Cheers

coFF33
16th September 2010, 11:28 AM
fuckkkkkk how did i miss this !!!

i wonder if this would clear up my -4 deg camber on the rear of my 88' soarer drift car.... hrmmmm

xsoarerx
16th September 2010, 03:07 PM
nar man... different set up.

you need all those adjustment rods from like battle version or something.

biggo
16th September 2010, 07:03 PM
Have you put yours in yet john? I bought a auto darkening welding helmet (how did i survive with out one!) in preparation for this. Havent really touched the carina lately tho.

bigm
16th September 2010, 08:35 PM
Big Biggo,

You have been missing out, Make life so much easier

biggo
16th September 2010, 08:51 PM
Well my excuse is shitty 2nd year apprentice wages.

steeko
17th September 2010, 11:41 PM
i'm down for a set. keeping the camber in check saves tyres.

Biggo - got some pic's on your GTTR?

bigm
18th September 2010, 07:59 AM
There is still one left over from the last Batch.

PM me if your keen

bigm
25th September 2010, 09:12 AM
Last One sold

Thanks guys

Skid_KE70
4th October 2010, 09:36 AM
Id be in

bigm
4th October 2010, 11:18 AM
Get 4 more people and its done.

skizzamods
5th October 2010, 08:26 PM
Def in when im back from my holiday (january)

bigm
5th October 2010, 09:30 PM
well 3 more in the next year.

Also i think 'worked' may possibly be keen so find a few more and off we go

shift_rook
5th October 2010, 09:57 PM
yeah turns out the cradle i wanted already sold so yeah i need one

blusil
6th October 2010, 10:13 AM
awesome, fair keen, let me know when we are good to go. Thx

worked
6th October 2010, 08:16 PM
i'd be in
i'm sure skidke and myself could get another interested as well
thats 3
heaps easier than making them myself

bigm
6th October 2010, 08:55 PM
alright, fair bit of interest here.


Busy at the moment, over the next week or so ill ring around and check its all good to go still and get a price.

Those interested in the near futute

-Shift_rook
-Worked
-skid ke70
-blusil
-steeko

Please let me know on numbers if anyone else is keen

Thanks

worked
7th October 2010, 09:57 PM
Premium

steeko
19th October 2010, 12:17 AM
niceness! thanks again for making these nice additions.

worked
19th October 2010, 09:18 PM
Any progress on more being made??

shift_rook
20th October 2010, 09:49 AM
yeah just lowered my car, holy shit balls themz allotta camberz

bigm
21st October 2010, 09:18 PM
sorry guys been busy.
Next weekk is the last week of uni so ill sort everything out monday after next!

<3

Looking at $250 posted and all at this stage though.

macca1590
24th October 2010, 09:49 PM
about to embark on my installation tomorrow, any hints tips worth sharing??

bigm
25th October 2010, 08:32 AM
remove subframe
Cut of old outer mount
Use Rear control arm as a guide as to where to tack the mount. Once its tacket in place, check the arm can move through the new range of movement
If so

Finnish the welding

Have great success

macca1590
26th October 2010, 07:20 PM
great success was achieved, works awsome, would be better if i actual checked once tacked in if it would move nicely through full range of moment but still ok with a bit of lanolin assistance

the only drama i had was that i was flat out getting half a nut on the bolt, even before i installed it and ended up stripping it, so had to muck around and weld a new longer bolt in but aside from that hardest part is getting subframe and diff back into car when no one would help haha

bigm
26th October 2010, 08:36 PM
Update on the new ones,

Will Pm those interested.

Also, PMing Those who got the last batch, regarding the issue you had macca.

Cheers

bigm
1st November 2010, 09:45 PM
Can people please get back to me if i PMd you...

need to finalize numbers.

steeko
16th November 2010, 11:18 AM
any new pics? woz going to print em all out to show the fabricator dude.