What will break first Drive shaft or Flexplate?
 

I am about to put in a built ls6 sae 500 hp. It will be supercharged with about 10-12 lbs. Should I upgrade to a sfi flexplate or the upgraded driveshaft first? I cant do both right now unfortunately and have to play the odds.

Thanks

Thanks Brett for the excellent advice, as always.

My pleasure sir.


For the rest of the readers, I chose the flex plate since I've seen the autos do so well with the prop shafts in higher powered builds than this one.

:cheers:

I'm still on the stock flexplate with no issues. When I was at 700rwhp I did grenade both driveshafts couplers and destroyed the shaft. The carnage was epic. I went with a solid billet coupler and a poly six shooter coupler.