quote Originally posted by Archie: However Curley, Troy & myself have been plotting to trial fit it to Troy's car to determine what size wheels Troy needs (it'll be trial fitted to Curleys car too). Curley will have to post exactly what size & offset it is but as it is right now, it fits this IMSA perfectly. Troy will have to post to tell us if his wheels are supposed to be wider than these are. Archie

Edit: Due to the site having .5-1 and no .25 or .75 I rounded up to 36mm for the HRE rim offsett.


I called Jim about the off-sets used but Jim hasen't gotten back with HRE. Anyway, I did some research and have come up with my own conclusions; first off....here's the link.

http://www.rims-n-tires.com/rt_specs.jsp


While I was at Custom Auto, Jim measured the "backspacing" on the 20x11 rim. The rim measured 6.5" backspacing.





The "formula" this site ( http://www.rims-n-tires.com/rt_specs.jsp ) resulted in the HRE rim being 14mm off-set. I tried using the other formula but it doesn't "jive" with the rim/spec site. Something is missing in the formula but I'll continue to plug-in the numbers. However, Troyboy measured the back spacing on a stock rims and the rim/spec site was correct in it's measurements.

Edit: for spec corrections.

[This message has been edited by madcurl (edited 06-28-2006).]

[This message has been edited by madcurl (edited 06-28-2006).]

[This message has been edited by madcurl (edited 07-03-2006).]

where's the bloody pics????

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1986 GT, LT1/4T60E. In the middle of cam/port, new interior, paint and waiting on new wheels. Itll blow you away!!
http://hometown.aol.com/ptfiero/index.html
build
http://dtcc.cz28.com/Customer/LT1Fiero/index.htm