rolf

Ok so I'm stumped and have been trying to figure out this problem for a wile now. Basically Im sitting at 3400 doing 65 mph. I had 205/55/16s In the back, then swaped to regular 205/60/15s and its the same.

According to gear ratio calculators, I should be around 2800 with a 4.11. If I put my rpms into it to get 65, I have a 5:1 final drive! And also my first gear would be at 23 at 5400 ! Its not that short I know for certain.

I looked up possible explanations and I can't find any, unless I have super rare custom gear ratios or something, and I'm pretty sure they don't make diffs for these cats with that high of ratio, so I highly doubt that... I bought the car like this, doesn't seem like anyone would Put that much money into this car.

And no the clutch isn't slipping.

Any possible ideas would be greatly appreciated!

Frank_Jaeger

Automatics don't have clutches.

rolf

They don't have 5th gears either....

I have a 91 s13 with a ka24de. Exedy stage one cluch, light weight flywheel, isis short throw. Xxr 002s with 205/55/16s.

I guess I.should have added that info.