Simon
|
| posted on 10/5/02 at 12:04 PM |
|
|
Sierra IRS
Hi all,
I bought Ron C's book late last year, and found this friendly, knowledgeable site soon after.
I'm going to start building in the second week of July (two week holiday, so hoping to make a lot of progress), and am currently going through the
thinking / preparation stages.
I've already obtained and dismantled a Sierra 1.8 CVH. Req'd bits stored, and shell scrapped.
My budget is going to be very tight/strict (wife says so!!), so it goes without saying that any bits from donor I can use, I will.
I intend to use the Sierra IRS, but without the bent tubular subframe. Can anyone see any problems bolting the diff to brackets on the chassis and
(bearing in mind the "book" chassis is to be widened by 4 or 5 inches), making brackets up on the chassis to bolt the Sierra trailing arms to. I
appreciate my measuring will have to be quite accurate!!
Thanks for any help
Simon
|
|
|
|
|
Dunc
|
| posted on 10/5/02 at 12:44 PM |
|
|
If you are going to use the sierra I would recommend going the double wishbone or De Dion rear susension. Sierra trailing arms will only cause
problems setting up the geometry correctly. If you do decide to use the trailing arms you would be best to keep the tubular subframe. This will keep
the diff isolated from the main chassis otherwise you will need to have bushes between the chassis and diff to keep vibration down. The subframe is
heavy but it will help keep your costs down. Check out the pics from last years stoneleigh show.
|
|
|
phil.shelton
|
| posted on 10/5/02 at 05:13 PM |
|
|
Simon
New book `due out later this month how to build a tiger avon. this is a double wishbone setup and designed to use all sierra running gear.
Published by veloce www.veloce.co.uk hope this helps. by the way if you dont want to make the wishbones tiger will sell you them atŁ20.00 each which
I did'nt think to bad 
|
|
|
Simon
|
| posted on 13/5/02 at 01:07 PM |
|
|
Dunc, reason I thought about not using subframe was a piccy I have of MK Indy IRS. Diff bolted (abeit with bushes)direct to frame. It will probably
save quite a bit of time if I did use subframe. Just have to lose about three stone in the meantime.
Phil, New book might be work a look, just for some ideas.
Thanks for your suggestions anyway
Simon
|
|
|
Dunc
|
| posted on 13/5/02 at 01:46 PM |
|
|
Simon, I think the tiger and MK sierra IRS chassis both use fabricated uprights with double wishbones rather than the trailing arm of the original
sierra, could anyone confirm.
|
|
|
Simon
|
| posted on 13/5/02 at 02:48 PM |
|
|
Dunc,
You're absolutely right, they do use fab'd uprights and w/bones. I was hoping to compromise on cost and weight - bolting diff to chassis and Sierra
trailing arms to home made brackets (these would include use of Sierra bushes already on/in trailing arms). Then I would just!! need to make diff
hangers / bushes for vibration isolation.
Just trying to keep costs down.
Wishbones and uprights, likewise for front (plus Sierra front upright adaptors), plus bushes etc etc will make a big dent in my rather measly
budget.
Could be worth a call to MK to see if they could supply diff-to-chassis bracketry and bushes.
Look forward to your comments
Regards
Simon
|
|
|
