1G Auto rpm question - preferably NA

[dish-oh]

Just a quick question that some people might be able to help me with.

I've got a 1GGE auto in a mark ii as my daily for this year, or so goes the plan.

I have noticed that sitting on 70-80km/h the engine sits on around 3k rpm, and from memory, only changes into 4th at around 3100-3300rpm, or upwards of 80km/h, but even then only drops back to 2800+rpm.

In my old subaru (2.2l NA auto 4spd), I could sit on 80 at about 2300rpm.

Is this simply a case of smaller engine - bigger car? Or is there something else at play?

I do quite a bit of travel at 80km/h and I'm just not used to a car sitting on 3000rpm for that amount of time.

Thanks for any insights

[wilbo666]

A quick look and it looks like the diff ratio for a GX81 auto and it seem it is either 4.1, 4.3 or 4.556 (suspect 4.3...) factory.

This is why your revs are so high I would suggest

Cheers
Wilbo

[dish-oh]

Thanks mate,

I'm pretty clueless about diffs, but would I be on the right track in thinking that a different ratio diff could possibly lower the rpm at certain speeds?

I'll have a search, but briefly, would a lower ratio - ie: 4.1, generally mean lower shifts? (though would most likely make my car more sluggish)

[wilbo666]

Thanks mate,

I'm pretty clueless about diffs, but would I be on the right track in thinking that a different ratio diff could possibly lower the rpm at certain speeds?

Yep,

I'll have a search, but briefly, would a lower ratio - ie: 4.1, generally mean lower shifts? (though would most likely make my car more sluggish)

And Yep.

Cheers
Wilbo