You might be right. Friday I cleared the 1/4 mile traps doing 5000 rpm at 112 MPH. That's about 45 rpm per mile of speed. I would need 1250 more rpm to make it to 140 mph if everything is linear. My engine pulls strong to 6400 rpm, so that leaves a max potential for 1400 more rpm. Throw in tranny parasitic loss at high rpm and wind resistance, 140 might be top and your 132 might be realistic.I'd guess 132-135
so last friday I gained 22 mph from the 1/8th to the 1/4. That would put me at 134 mph in the 1/2, using your rule of thumb. I'll take it!for the slower cars... ya... from what I saw most people gained in the 1/4 to 1/2 what they typically gain in the 1/8th to 1/4 at a strip.
Forged stroker 10.25:1 CR, Crower S/C cams w/ HD springs, Kooks headers, 2 1/2 inch SS exhaust all the way back, Trilogy ported, built trans w/ factory TC, 3.73 gears w/Eaton LSD on 31 splines, 9 1/2" rear wheels, metal matrix drive shaft , Sparta perf rear control arms & Watts links, heavy front & rear sway bars, 14" 6 piston willwood fronts. 305-45-18 Nitto 555DR's. SCT MAF, 60# injectors, Ford GT fuel pump.What do you have done to your mm