My car (1994 geo prizm) seems difficult to bump start. If I let the clutch out enough to spin the engine enough that it will start, the engine will consume large amounts of kinetic energy and make some noises I do not like.
Comparison of the civix DX, Si, and VX, geo prizm, and saturn S series (approximate, I didn't research it much,) at 30 MPH. The prizm has gearing that is shorter than even the civic Si and this is after my rubber overdrive (185/70/R14 vs 175/65/R14) using the tallest tire that does not rub the fenders everytime I take a turn fast.
Code:
car 5th final revs/mile speed clutch rpm
DX 0.702 4.058 890.59 30 1268.51899122
Si 0.75 4.25 886.89 30 1413.4809375
VX 0.702 3.25 912.81 30 1041.2880075
prizm 0.815 4.311 833 30 1463.3581725
SX1 0.643 4.063 833 30 1088.1099985
SX2 0.73 4.063 807 30 1196.776965
Any idea why bump starting is so hard? I'm suspecting the short gearing shown above, but I may be missing something.