Originally Posted by EvilMooseofDoom
You know, not to change the subject here, as the new exhaust system is almost too pretty to use....but the first thing I noticed is that you don't have all of the IRS 'fixes' plastered all over the IRS subframe. Is this in the drag car in your sig?
Yes, it's the same car. It's not really a drag car, because I only take it to the track about once a year just to see what it will do. I don't have a cage or most of the other stuff required for the ET and MPH the car is capable of running. You are also correct about there not being many mods to the suspension or the IRS.
I'm running with stock shocks, springs, halfshafts ect. The Ford trac-loc diff was replaced with an Aburn Pro limited slip diff and stock 3.27 gears were replaced with factory 3.73 gears. All the bearings and seals were replaced and I did install a new set of factory style rubber mounting bushings when the pumpkin was installed.
If using an automatic transmission, the stock stuff holds up to a lot more power than most people think. The non locking converter provides a little more cushion against the type of shock loading that causes the IRS damage. It's only a concern if launching the car off the trans brake with a set of slicks on a sticky track. So far nothing has broken, but the most I've launched with is 6 pounds of boost. No wheel hop, and it tracks very straight when the tires spin....even when smoking the tires from a 70 mph roll
With all the changes I've made to the car in the past 9 months, it's much quicker than the numbers in my signature indicate. I'm 98% certian that it will run high 10s as driven on the street with 14.5 pounds of boost, and if nothing breaks ...high 9s with 23 pounds and race gas.