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 Post subject: engine tuning question
PostPosted: Tue Jan 14, 2014 7:03 pm 
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998cc
998cc
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Joined: Sun Jan 08, 2006 12:04 am
Posts: 648
Location: Ballarat, Victoria
Hey all,

I've noticed over the last few days that the mini drives alot better in this stinking hot weather.

Its pulls better in every gear. And seems to run smoother as well when cruising.

Any gueses what this might mean?

Timing out? Or a tuning issue with the carby?

It doesnt run badly normally. Its just strange its running better when its 30+ degrees outside

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1975 Hairy Lime/White Clubby
Build Thread: http://www.ausmini.com/forums/viewtopic.php?f=3&t=80657


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PostPosted: Tue Jan 14, 2014 7:24 pm 
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998cc
998cc

Joined: Mon Jun 18, 2007 9:00 pm
Posts: 1127
Location: Down South
When the air is warm it is less dense, so maybe your tune is too lean? The thinner the air, the more rich the mixture is? :?


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PostPosted: Wed Jan 15, 2014 10:32 am 
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Bimmer Twinky
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Joined: Mon Sep 06, 2004 4:36 pm
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Location: Brisbane
hot climates like leaner mixtures
cold climates prefer richer mixtures

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No offence intended here but--> anyone writing a book about minis 30 years ago may not have experienced such worn or stuffed-with components as we are finding these days.

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PostPosted: Wed Jan 15, 2014 11:15 am 
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1360cc
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Joined: Tue Jun 01, 2004 3:41 pm
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Location: Special Tuning Sydney
Lean out your carbie(s) a few flats and enjoy

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PostPosted: Wed Jan 15, 2014 2:35 pm 
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religious status
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Joined: Fri Mar 19, 2004 6:19 pm
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Location: near Baulkham Hills, NSW
Sounds to me like it's a bit lean already...
Stick a borrowed A/F ratio meter on it and go for a drive.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:


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