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3.55 vs 3.73

1.1K views 2 replies 3 participants last post by  sbgto  
#1 · (Edited)
yup-i searched and-nothing on this topic. thinking of swapping my 3.55's for 3.73's.
with my combo now i have to shift to fourth 2 or 3 car lengths before the finish line.last year i said screw it and on my last run and let her rev to 6200 in third(don't think my car liked me for a while after that ) and it was slightly quicker in mph.my car is a 75%street/25% strip car.what kind of et/mph diff should i expect?is it worth the swap???
thanks in advance,
Andy
 
#2 ·
You might pick up a little, but there is not a huge difference. You will hit 4th a little earlier. 6200 on a 26" tire in 3rd gear is 98.3 mph with the 3.55s and 93.6 with the 3.73s.

If track performance is your goal, a set of 4.30s (or 4.10s) would be a large improvement. It will hurt on the street though.