Quote:
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Originally Posted by Crowbar911
On a flat road, My 4 speed auto(which has the same internal engine parts) hits 6000 at 40 MPH in first gear on flat ground.
the 5 speed manual and 4 speed auto have different transmission, but the pistons, crankshaft, etc are the same. and I belivee that the strength of those is what determines a cars redline. the 1zzfe engine is safe to operate under 6k rpm without damage.
that is why I mentioned why my 4 speed auto redlined at what it did.
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the redline might be the same (sometimes redline is determined by the tranny too) but the gearing in the auto tranny is totally different, so this isn't very helpful :-P
I just remembered that I stumbled upon a redline calculator a while ago where you have to put in the exact ratios of your tranny, I'll try to go find it again.
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'01 Impreza 2.5 RS - Mud flaps, skid plates, Gravel Dampers
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