Join Date: Aug 2011
Location: Albuquerque, NM
Ferrari Life Posts: 11,856
Boxer- The early GTBs and the GTS are nearly identical. Four wheel IRS, rear transaxle and open drive shaft vs the torque tube that became the Ferrari standard and was introduced on later GTBs. Gearing is slightly more relaxed in the GTS with a 3.33 rear end vs the 3.56 of the GTB. Transmission ratios are the same. The engine in the GTS is in a slightly milder state of tune with 260 hp vs the 280 hp for the GTB, due to a milder cam and resultant lower redline (7000 vs 7600 rpm). The GTS engine is safe to 7600 rpm, but the cam means it is not making more hp, so why bother? Some owners have put 6 carb induction and hotter cams in the cars. None came from the factory that way from what I have read. Same wheel and tire choices, but most GTS cars were delivered with the wire wheels.
I believe the GTS was built by Pininfarina and the GTB by Scaglietti (need to check), so build quality of the spider was superior, sort of like the GTC/4 vs the GTB/4.
Present: 575M 135171
Past: Dino 246 GT 02984, 365 GTB/4 14009, 308 GTS 25125
Every day I look around, and if nobody is shooting at me, it is a pretty good day.