Department Of Boost
Alpha Geek
- Joined
- May 26, 2010
- Posts
- 8,808
- Reaction score
- 31
I thought IRS was heavier overall?
That was sarcasm for all the stick axle fans.
That said there is no reason a IRS can’t weigh less than a stick axle. Most people have it stuck in their heads that IRS weighs more because it did on the Terminators. But the Terminator IRS was designed around a stick axle chassis/as a bolt it. If done from scratch with aluminum arms (which the S550 has) there is no reason why the IRS needs to weigh as much as the stock axle. Plus there is no arguing a IRS has a LOT less unsprung weight than a stick axle does..
