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Old 02-06-2011, 02:14 PM
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Jimbocobra Jimbocobra is offline
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Join Date: Jun 2008
Location: West Suburbs of Chicago, IL
Cobra Make, Engine: Backdraft#357, 392CI Ford Racing, 459hp, 455ft/lbs , TKO 500, 3.43 Gears, Ceramic Coated Headers, Victor Jr. 750cfm, 17in Halibrand wheels, Sterling Gray/Silver Stripes, Gray Leather, Nitto NT05
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Default Sub 4's 0-60's are possible with small block BDR's

Quote:
Originally Posted by Excaliber View Post
Depending on the final drive ratio (rear gear X 1st gear ratio= Y) I think under 4 is possible with a small block? The BMW half shafts are apparently weaker than other typical IRS units found in Cobras, as far as torque rating is concerned. Jag, Ford, Kirkham/Shelby style, etc. are stronger units.
"apparently weaker", the scientific, classic engineering response...

I have hit 3.6, 3.7 and 3.8 0-60 times with the older style BDR half-shaft with no problem. Also, I have made over 20 hard trips down the 1/4 mile with sticky drag radials and had no issues with the half shaft. Yes, sub 4's are possible with a small block, easily and repeatedly. My car was build in 2006 and I'm still on the orginal half shaft. I was worried when I read everyones opinions, but opinions, like the one above are no match for real world testing. BDR makes a fine product, cabable of handling tremendous abuse.
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1/4 mile 11.92@115.6 and 60ft 1.632

Last edited by Jimbocobra; 02-06-2011 at 02:19 PM..
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