Hi,
I am a bit new to all this so please be gentle I have got hold of the sierra irs Locost chassis plans but does anybody have any measurements for the chassis/wishbones/hub carriers?

Thanks in advance

Ludsonline

There is a book written by the Chairman of Tiger Avon which deals with IRS.
There is even a special group on this dealing with Tiger Avon.

Hi I am also new to this, where did you get hold of your irs plans, I plan to build a locost using a vauxhall engine / ford box and a sierra irs unit but am finding plans scarce or am I looking in the wrong places!!! any info greatly appreciated...

http://mcsorley.net/locost/

jim has made a plan for IRS i believe, should be on there somewhere...

Jim and I are finishing the designs and a few measurements are still outstanding

here's a quick preview of what it will look like

Tim
Rescued attachment sierra_irs.jpg

i like it, the back end seems well though out. how wide is it in inches at the cockpit part? thanks

Joel

the size is non standard on this chassis as its for my car ie +6" in width over book and made of 1 1/4 tube the drawings Jim will publish will be more suited for book and/or +4 cars.

Hey I really like that design!

'Specially as from 'O' and 'B' backwards it's the same as mine! Nice to have it confirmed by someone competent that I'm not gonna die!

Cheers,

James

quote:

---

Originally posted by James
Nice to have it confirmed by someone competent that I'm not gonna die!

Cheers,

James

---

Maybe not- I had that confirmed for me by someone competent in a vision a while ago!

James

I've used the book chassis design back as far as the bulkhead behind the seats. I then calculated the dimensions of a 'box' assembly which the rear wishbones attach to, along the lines that Tiger use and then reverted to the book design for the rear of the car.
So far this appears to be working but I've not finished yet and anything can happen.

Mick

When can we expect jim to publish these drawings on his site?

Craig