Hello
First post and if it's ok I have a question.
My friend has a 240z and we bought another 240z parts car for the 5 speed trans to get his RPM down for the freeway commute.
I scored on a few parts from it too, I got the rollbar, header pipe, weber carbs and e31 head.
We just finished installing the 5 speed today and couldnt wait to take it on the freeway to see the RPM drop compared to the 4 speed.
When we got to 65 we had the same look on our faces and darn sure we were thinking the same thing. WTF? it was spinning the same RPM as the 4 speed! I was clowning him for not being in the right gear but sure as heck it was.
So i guess my question would be is the 4 speed an overdrive 3 speed? because the final rpm between the 4 and 5 speed is the same.
What a waste of time! The gears in the 240z parts car are somewhere in the 4:25 range so thats out.
So now we hunt for higher gears!