Solid Axle or IRS, which is better?

[aesthetect]

im extremely interested in IRS to build a FF33 track (road race) car. can anyone comment who has maybe driven on both aggressively around some corners? ... coming from a solid IRS background im curious as to how cumbersome the solid axle would be, i imagine very.

[DoogieT]

im extremely interested in IRS to build a FF33 track (road race) car. can anyone comment who has maybe driven on both aggressively around some corners? ... coming from a solid IRS background im curious as to how cumbersome the solid axle would be, i imagine very.

Solid Axle Only - 4,000+ miles, 15 Road Tracks (some dups) MkIV, 331 Stroker 324WHP, 12" Yokohama rear 200TW
Rear slips, learning maintain acceleration (counter intuitive, hard to relearn) steering to control. Nothing feels better than slip... acceleration and steering... when it works!

I thought I wanted IRS but now probably not:
- I don't need a big bill and fabrication expense
- Will IRS save me 10ths traded for a fragile setup?
- I need to drop seconds with an unbreakable suspension

HP won't help on the turns, save seconds on long tracks: Homestead, PBI, Sebring, Rd Atlanta, VIR, NCM, MidOH, Rd America, Gingerman

I have no engineering or mechanical skill so I'm open to being advised on what my options are for suspension.

Thanks,
Doug Tally