Over-drive question Options

[BrettKoster]

Here is a question that has come across my mind while driving on the highway with my Celica. I have a 1995 Celica GT Manual and when I drive over 65 my rpms seem to be high, above 3000 and when I reach 80 I am at 4000 (5th gear of course, the highest gear I have). When I drive another Celica GT that is an automatic, I am driving at 3000rpm at 80mph. I would assume that is because there is an over-drive feature in automatics, but is it possible to have that feature in a manual Celica as well either by default and I am some how missing it? Or if it isn't in there by default can I have it installed on a manual (that doesn't require a whole new transmission?)?

Otherwise what can I do to bring the rpm's down when I am at a high speed?

Thanks in advance for any help given

[delusionz]

Anyways, Your easiest option is a bigger rolling diameter wheel/tyre, and then use a speedo corrector so you can see the difference you've made (it is however unrecommended to go above or under 3% of factory spec)

Then the other option is by transfering an E153 gearset into your S54, or by just adapting the whole E153 gearbox to be used by your 5S-FE.

For the 7A-FE you have the option of longer gears from the 1.6 supercharge motor Toyota Levin GT-Z.

Hope this helps