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View Full Version : I.R.S help please !!!



northcountryboy
15-06-2008, 11:24 AM
I have recently acquired a nova and am about to start the long and almost never ending restoration process. My first job once I eventually get the body off is to sort out what is left of the chassis. I want to go down the I.R.S route is there a kit for converting the swing axle chassis if so what other bits are required and what is involved or am I better getting a 1303 chassis and having the earlier frame head welded on. I also want to reinforce the chassis to reduce flex and improve handling as I intend to upgrade the engine. Any help will be greatly appreciated.

letterman7
15-06-2008, 02:16 PM
There are weld-on kits for the IRS conversion. You'll need that particular kit, the axles, and the appropriate bearings for the axle holders. Doing that conversion is less hassle and safer than converting a 1303 chassis (welding frameheads isn't for the faint of heart). Of course, the easiest route is to find a '68 or later standard Beetle pan. There are several manufacturers Statewide that offer roller IRS pans, complete with disc brakes and all the plumbing. Check with your local VW enthusiast group for suppliers!

R

nbb350
15-06-2008, 04:20 PM
Northcountryboy, you don't post your location, but since you say you bought a "Nova", I'm assuming you're on the Eastern British side of the Pond ( versus us Yanks on the Western side :laugh: ). From what I've gathered on the forum, making major chassis mods like you're suggesting may have legal/registration/MOT/V5/WTF consequences. Before you start buying parts for a switch over, you might want to post also in the MOT category or wait for some more of your countrymen to comment in this post. Just my $0.04 (adjusted for today's ridiculous inflation rate :rofl: ).

Ben
15-06-2008, 09:56 PM
Hi northcountryboy

You could weld on these.
http://www.csp-shop.de/cgi-bin/shop2/sh ... 2136018188 (http://www.csp-shop.de/cgi-bin/shop2/shop_main.cgi?func=start&wkid=2136018188)

click Rear Axle click Rear Suspention the 10th Item down.
Because it is a up grade will not take away your vin number. :cool1:

Ben

northcountryboy
15-06-2008, 11:09 PM
I am quite new to vw suspension so forgive me for sounding stupid but how do I know where to weld said bracket or will it become obvious when I have suspension arms. http://www.csp-shop.de/cgi-bin/shop2/sh ... 2136018188 (http://www.csp-shop.de/cgi-bin/shop2/shop_main.cgi?func=start&wkid=2136018188)

letterman7
16-06-2008, 12:43 PM
Nothing stupid about it - questions are the only way to learn. If the CSP kit does not have instructions in it, then a few photos of IRS cars will help locate the weld point. If someone dosn't beat me to it, I'll post a couple scans of the IRS vs swing rears, so you can get an idea of where everything goes. The only current scan is below - the boxy looking thing in the upper right corner of the assembly is what you'll need to weld on. Ignore the red type - that was a reference for someone else :)

R

http://i16.photobucket.com/albums/b31/letterman7/Random/VWIRStrailingarmassembly.jpg

Kym
16-06-2008, 01:37 PM
http://www.blindchickenracing.com/how_t ... ersion.htm (http://www.blindchickenracing.com/how_to/irsconversion/stockbugconvert/stock_bug_irs_conversion.htm)

bushboy
16-06-2008, 10:14 PM
Use a jig or you will go round corners good one way & bad the other & never in a straight line!!!!!

bushboy