You would rarely use the top two gears in the Mag XL. With 7800 revs, 3.73 rear, and the 2.66 ratio box (not the non-road-race friendly 2.97 box), the ratios are nearly identical to MT82 gears 2-5, and you would top out (in 4th) at 158mph with a relatively short 25.6" tire (a 315/30/18). You can get custom OD clusters for the magnum to get a .80 or .90 5th gear for somewhere like Daytona.
The 2.66 ratios are:
2.66; 1.78; 1.30; 1.00; .74 (OD1); .63 (OD2).
The 2.97 box is what FRPP offers for some reason--the gear splits don't make sense for road racing with that box.
And first gear in the MT82 is absolutely useless on-track.
You could do a lower 4.88 with a bunch of other considerations including increased diff fluid temperatures if you wanted to drive in the same 3-4-5 gearing like with an MT82...but wtf for?
The 2.66 ratios are:
2.66; 1.78; 1.30; 1.00; .74 (OD1); .63 (OD2).
The 2.97 box is what FRPP offers for some reason--the gear splits don't make sense for road racing with that box.
And first gear in the MT82 is absolutely useless on-track.
You could do a lower 4.88 with a bunch of other considerations including increased diff fluid temperatures if you wanted to drive in the same 3-4-5 gearing like with an MT82...but wtf for?