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Re: RPM at a true 60 RPM

PostPosted: Fri May 14, 2021 8:27 am
by TBG
I have no idea why none of you have come up with the correct answer. RPM at a true 60RPM is 60! Do try to keep up you lot!!

PS have you ever seen anything as ugly as a MiniCountryman?

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Re: RPM at a true 60 RPM

PostPosted: Fri May 14, 2021 10:39 am
by gherlt
Yes. Much worse.
A Youabian Puma

Re: RPM at a true 60 RPM

PostPosted: Fri May 14, 2021 12:05 pm
by TBG
Gosh that is truly terrible - but that awful Mini is an everyday car for those with poor eyesight....................

Re: RPM at a true 60 RPM

PostPosted: Fri May 14, 2021 3:54 pm
by richardcox_lotus
gherlt wrote:Yes. Much worse.
A Youabian Puma


Aaargh! My eyes !!!!

Re: RPM at a true 60 RPM

PostPosted: Fri May 14, 2021 4:52 pm
by tdskip
lotusfan wrote:I don’t mean to be picky Mr tdskip but could you correct the thread title to read 60 MPH please. My OCD can’t stand it anymore!!


Done!

:D

Re: RPM at a true 60 MPH

PostPosted: Fri May 14, 2021 4:56 pm
by brandonsan
What will a 3.55 rear reduce the RPM to @ 60 MPH ?

Re: RPM at a true 60 RPM

PostPosted: Fri May 14, 2021 5:23 pm
by lotusfan
[/quote]

Done!

:D[/quote]

I feel so much better now, thank you.

Re: RPM at a true 60 MPH

PostPosted: Fri May 14, 2021 7:37 pm
by brandonsan
What would the RPM at 60 MPH drop to with a 3.55 differential ?

Re: RPM at a true 60 MPH

PostPosted: Fri May 14, 2021 8:13 pm
by 1owner69Elan
brandonsan wrote:What would the RPM at 60 MPH drop to with a 3.55 differential ?


~3145 rpm.

Re: RPM at a true 60 MPH

PostPosted: Fri May 14, 2021 9:01 pm
by brandonsan
1owner69Elan wrote:
brandonsan wrote:What would the RPM at 60 MPH drop to with a 3.55 differential ?


~3145 rpm.

Thanks !

Re: RPM at a true 60 MPH

PostPosted: Fri May 14, 2021 10:21 pm
by TBG
and with 3:1 2700 - tee hee. Way to go.........................!!

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Re: RPM at a true 60 MPH

PostPosted: Fri May 14, 2021 10:57 pm
by tdskip
Changing the differential ratio is an interesting idea.

Right now my girlfriend and I both reach for the nonexistent 5th gear because the car pulls so quickly through 1st to 4th. There are some amazing road trips and great driving roads here in SoCal but you cannot avoid major freeways to get started.

I would trade off a bit of first gear shove for more relaxed high speed touring.

Re: RPM at a true 60 MPH

PostPosted: Sat May 15, 2021 12:23 am
by The Veg
tdskip wrote:Right now my girlfriend and I both reach for the nonexistent 5th gear because the car pulls so quickly through 1st to 4th. There are some amazing road trips and great driving roads here in SoCal but you cannot avoid major freeways to get started.


Same here. I've only driven my Plus 2 a hundred-odd miles as yet but I constantly find myself wanting a fifth gear. I've had it up to 90+ in fourth and driven for under an hour keeping up on a major freeway but having fifth would still be an improvement. North Georgia has some really *amazing* twisties too, but I have yet to take this car up there. Soon!

Re: RPM at a true 60 MPH

PostPosted: Sat May 15, 2021 12:47 am
by 1owner69Elan
IMG_6247.jpeg and
2620 rpm @ 60 mph
3060 rpm @ 70 mph
3495 rpm @ 80 mph
3935 rpm @ 90 mph

3.94 diff ratio (effective) - uncompromised acceleration

Re: RPM at a true 60 MPH

PostPosted: Sat May 15, 2021 2:13 am
by tdskip
So now I have to do is track down a gearbox, figure out how to change the question mechanism, get the new engine and gearbox out, remove the new good gearbox, fit the new good five-speed, and then reinstall and put everything back up.

Sounds like 90 minutes of work. Ha.

I suppose I should keep in mind that I’m only considering doing this because I absolutely love the car.