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 Post subject: highway driving
PostPosted: Mon Oct 01, 2007 12:07 am 
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1098cc
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Joined: Mon Jul 10, 2006 5:59 pm
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Location: Bris / Syd
i just love driving on the highway to the gold coast and watching the other cars pass me by... but seriously , what rev range is a good one for long haul trips. i just cruise on down taking my time.. not exactly like a grandma. but to some other road users,,,, close enough. the other problem and main reason is that the speedo just shat itself.....

its a standard 1000 cc.
comment all...

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PostPosted: Mon Oct 01, 2007 6:42 am 
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1275cc
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Location: Wollongong - Street Racer City
alot of us don't have tachos so can't help :lol:

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PostPosted: Mon Oct 01, 2007 8:30 am 
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Give Ash some flowers Nick .
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Location: Toowoomba Region, QLD
The rev range that your car sits in depends on your diff ratio.

What is your diff ratio? For a 1000cc it should be 3.65 or 3.765 from the factory (unless someone has changed it). My car with a 3.765 diff sits on 4200rpm at 100k/h. I think there will be 200rpm (or so) differance for a 3.65 (ie. about 4000rpm).

Someone with a 3.65 might be able to tell you what their car sits on.

I know the good doc has a 3.65 diff and a tacho so just wait around until he see's this thread.

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PostPosted: Mon Oct 01, 2007 8:38 am 
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1275cc
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Joined: Mon Sep 19, 2005 4:57 pm
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Location: Gulgong
About 4,000 is around the 100 kmh mark in any of the minis. As said plus and minus a few rpm.

The engine is working fairly well at that rev range and as long as the oil pressure and the temperature are steady then it should be okay. 3,500 is a bit less and a bit less load on the engine but an awful lot of cars are going to zoom past.

Just watch the oil and the water levels each time you stop.

Mike


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PostPosted: Mon Oct 01, 2007 9:01 am 
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religious status
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Location: near Baulkham Hills, NSW
4,400 rpm is 110KMH in both our 1293 and 1360, (3.65 diffs) they run at that no problems. 8) But they are modified, not stock.

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 Post subject:
PostPosted: Mon Oct 01, 2007 9:15 am 
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848cc
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I did this trip on the weekend actually, with the surfboards of course.

Image

In my pretty stock 998 we sat at around 3500 rpm (I think it was about 95km/hr, I'm not sure my speedo's a little optimistic) the whole way and didn't get past by too many cars and even overtook a few :)

I'd say keep an eye on your temp and definitely make sure you have your oil and water full before leaving, just in case.

Oh and also watch your fuel gauge.


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 Post subject:
PostPosted: Mon Oct 01, 2007 2:18 pm 
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1098cc
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Location: Bris / Syd
Going by the receipt,,,, 3.44 diff...camshaft 104 wade.
thanks for comments. yeah the oil sits steady around the 50-60 mark. temp guage is being installed asap...this week. what should the temp guage sit around, say on a hot summers day.

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 Post subject:
PostPosted: Mon Oct 01, 2007 2:47 pm 
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Location: near Baulkham Hills, NSW
Fiji wrote:
Going by the receipt,,,, 3.44 diff...camshaft 104 wade.
thanks for comments. yeah the oil sits steady around the 50-60 mark. temp guage is being installed asap...this week. what should the temp guage sit around, say on a hot summers day.

Ours both sit around the middle of the Smiths C-H gauge. The 1360 a bit less at high speed- the Minimatic heater acts as an additional radiator.

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 Post subject:
PostPosted: Mon Oct 01, 2007 5:32 pm 
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1360cc
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80-90kph is a good cruising speed for minis, and the fuel economy is much better than at 100 or 110kph


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 Post subject:
PostPosted: Mon Oct 01, 2007 5:41 pm 
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High heel ninja
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My Cooper S is about 3,600 rpm at 110k's, but i like my XR6 better, 1,800rpm at 110k's in 6th gear, very nice

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 Post subject:
PostPosted: Mon Oct 01, 2007 5:46 pm 
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Postally Verbose
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3.2:1 diff Doogie ?

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 Post subject:
PostPosted: Mon Oct 01, 2007 5:47 pm 
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1275cc
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Joined: Mon Mar 22, 2004 7:41 pm
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Location: Plumpton, NSW
2 S's & a clubman wrote:
My Cooper S is about 3,600 rpm at 110k's, but i like my XR6 better, 1,800rpm at 110k's in 6th gear, very nice


I thought the only time it did 110kph was when it was on the back of the diesel truck? :wink:
KB

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 Post subject:
PostPosted: Mon Oct 01, 2007 6:22 pm 
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High heel ninja
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sports850 wrote:
3.2:1 diff Doogie ?


Standard 3.44 diff

No Kev, it's on the trailer, not the truck, actually i can't think of the last time it did 110kph under it's own steam, :lol:

Doogie

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 Post subject:
PostPosted: Mon Oct 01, 2007 6:26 pm 
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1275cc
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Location: Adelaide, SA
What size tyres?

I think your tacho might be incorrect by about 400rpm.

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 Post subject:
PostPosted: Mon Oct 01, 2007 6:32 pm 
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1275cc
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Location: Adelaide, SA
The Mini in your sig appears to have 12 inch wheels.

With 165/60/R12 tyres, 3.444 diff in top gear 110kph would be 3997rpm.

100kph would be 3634rpm.

Perhaps your actually doing 100kph?

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