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Rorty's IRS
rgdavid - 21/1/09 at 10:15 PM

good evening,
Is the Rorty IRS back end wheel track wider than an escort live axle wheel track?

err... what is the escort back wheel track ?

thanks, david


flak monkey - 22/1/09 at 07:39 AM

Both of rortys designs are the same width as the escort axle if i remember correctly. And therefore both require that the sierra halfshafts are shortened.

I am sure the details are in the drawings.

David


rgdavid - 22/1/09 at 11:21 AM

hello david,

are there 2 Rorty IRS designs then for the escort axle width ??

cheers, dave

[Edited on 22/1/09 by rgdavid]


flak monkey - 22/1/09 at 12:36 PM

Nope theres IRS and de dion.

Both on my website.

David


rgdavid - 22/1/09 at 01:14 PM

ah i see (looked at your very informative site>thanks)
stupid me,
right weres me grinder for them shafts
cheers , dave


rgdavid - 23/1/09 at 01:24 PM

helloooo, are there any other IRS designs apart from Rorty's for an escort track width ?
thanks, dave


chrisg - 23/1/09 at 01:45 PM

There is a drawing knocking about which has another system using the Sierra trailng arms, which is pretty heavy, I'll see if I can find it.

Or you could buy my book and shorten the driveshafts

Or just buy the book and not shorten the driveshafts.

So long as you buy the book, my granny needs an operation or something...

Cheers

Chris


rgdavid - 23/1/09 at 03:05 PM

chris, ive got your book , so your "granny" can have her beer if got the french version,

what want to make is IRS the same width as the escort (why why cos it looks nearer the original lotus thingy)

can some one please tell me the track width for an escort axle, or even better what is the dimension over the outside of brake drums for a escort axle, thanks,
anyway grinder at the ready for shaft shortening (ouch) , dave


dnmalc - 26/1/09 at 02:48 AM

If you are building a 442 ie 4 inches wider +4 inches extra in the cockpit and 2 inches higher in the frame, then it is suited to sierra half shafts etc but will need the rorty rear to be amended to give the extra width. I did do all of the calcs on instantaneous centre associated with moving the frame rails that the wishbones hang from 4 inches further apart and this had a negligable effect on the roll centre but did mean that I could use the half shafts as is which meant no cutting no rewelding and no balancing. Certainlt a win win in my book!

Best of luck


Peteff - 26/1/09 at 08:38 PM

quote:
Originally posted by chrisg


So long as you buy the book, my granny needs an operation or something...

Cheers

Chris


What's she having next Chris, is it the boob job or the ass lift ?


andyps - 30/1/09 at 09:54 PM

quote:
Originally posted by rgdavid
chris, ive got your book , so your "granny" can have her beer if got the french version,

what want to make is IRS the same width as the escort (why why cos it looks nearer the original lotus thingy)

can some one please tell me the track width for an escort axle, or even better what is the dimension over the outside of brake drums for a escort axle, thanks,
anyway grinder at the ready for shaft shortening (ouch) , dave


Where did you get the French version? I was trying to get a copy but couldn't find one. Not trying to give Chris any extra beer money though


rgdavid - 30/1/09 at 10:18 PM

you can by em on "amozan" onligne book/dvd people,

learning french are you up in yorkshire ?

best way to learn french is get a french girlfreind dave

[Edited on 30/1/09 by rgdavid]

[Edited on 30/1/09 by rgdavid]


andyps - 30/1/09 at 11:43 PM

Last time I looked Amazon didn't have it.

Not sure my wife would approve of a French girlfriend


chrisg - 31/1/09 at 10:56 AM

Editions du Palmier

Cheers

Chris


MikeCapon - 3/2/09 at 11:44 AM

Are you allowed to call it a Seven over here then Chris?


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chrisg - 3/2/09 at 12:25 PM

Apparently, I don't get into the legal stuff but I presume they did their homework.

(I hope they did, you've got me worried now!)

Cheers

Chris


MikeCapon - 3/2/09 at 04:48 PM

Interesting one this Chris. Not at all my subject. The only involvement I have had is in protecting product names for products I had designed.

Here's a link to Caterhams details.