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post #1 of 5 (permalink) Old 03-24-2013, 01:19 PM Thread Starter
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irs suspension question.

what would it take to get a 96/7 Tbird irs to handle 550-600rwhp?
poly bushings, HD 8.8 cover, what else?
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post #2 of 5 (permalink) Old 03-24-2013, 01:37 PM
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Delrin bushings, rear girdle.

Standard or auto? I ask because traditionally the auto application can take more due to the shock absorption of the torque converter, whereas you can spit half shafts at a lower HP due to the sudden shock.

OH! Don't forget to use non-greasable U-joints! And the GOOD ones, not the $1.298 cheapies at Honest Charlie's Dry Cleaner and Auto Parts Ebay store!

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post #3 of 5 (permalink) Old 03-24-2013, 01:38 PM
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Do a search on RobertP's monster , His IRS handles things nicely , Just weak half-shafts at times (maybe a thing of the past in time )

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post #4 of 5 (permalink) Old 03-24-2013, 03:43 PM Thread Starter
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it will be a auto
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post #5 of 5 (permalink) Old 03-24-2013, 10:04 PM
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if anything, the half-shafts are the weakest links due to the CV joints that can pop on ya on a good launch. Obviously what you mentioned will help, but unless you're going to to massive fabrication, there's nothing that will make it "match" a solid axle. That mentioned, the IRS will handle your anticipated power level just fine.
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