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tommobot

Member Since: 15 May 2018
Location: Stratford Upon Avon
Posts: 20

jst wrote:

So did some investigating. Seems to be a large variation in opening temps on stats from reputable supplier plus a varying degree of how much they open, same brand, 10deg variation on start opening and 8mm variation on how far they open!

Greater flow needed at lower engine speeds is the aim so experimenting with stats now to open early.enough,.but not too early, and have enough flow past. Will also look at electric water pumps.

Found exactly the same... I've got a M57n with 8hp... Ideally I'd cruise around in 8th at low revs, which it seems quite comfortable doing, the ODB temp reading flies up and triggers rad fans almost instantly.

Will be interested to see how you get on with EWP, presume this in lieu of the OEM water pump, rather than alongside?

23rd Sep 2024 11:36am

jst

Member Since: 14 Jan 2008
Location: Taunton
Posts: 7954

2011 Defender 110 Puma 2.4 USW Stornoway Grey

EWP is a through flow so for now i have left a stat and fitted the EWP in the top hose.

EWP has its own controller and will only come on once the stat has opened.

Stat wise, some of the branded ones only opened 5mm at max opening. should be 11 or so. i now have a proper opening stat that open at the right temp plus the EWP fitted to increase circulation with stat open at low engine speeds. will let you know how it goes. Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop

23rd Sep 2024 2:29pm

sako243

Member Since: 08 Jul 2014
Location: Wales
Posts: 1215

1994 Defender 110 300 Tdi CSW Alpine White

jst wrote:

So what do people think was the problem?

No brake signal to the ECM that controls the alternator to let it know that it can initiate full charging?

Normally the smart alternators try and refrain from charging the battery until it's fuel efficient to (such as under braking or coasting). Not quite sure why it recharges straight away, maybe that's just the way that the BMW bods have programmed it to ensure it recovers from starting the vehicle. Ed
82 Hotspur Sandringham 6x6
95 Defender 110 300Tdi

23rd Sep 2024 2:50pm

jst

Member Since: 14 Jan 2008
Location: Taunton
Posts: 7954

^^^^ yes that a good avenue to test, but nope. simpler than that. Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop

23rd Sep 2024 4:02pm

jst

Member Since: 14 Jan 2008
Location: Taunton
Posts: 7954

Another top weekend away with some off roading mates inidnWales at the weekend. The m57 130 continues to impress and brings a big smile to my face. Effortless driving and even goes off road! More off road than some would venture within
that woods!

Click image to enlarge

Angle makes it look long than the cj and trailer combined!

Click image to enlarge

Click image to enlarge Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop

21st Oct 2024 9:26pm

jst

Member Since: 14 Jan 2008
Location: Taunton
Posts: 7954

Click image to enlarge

A few others on here there too.

Click image to enlarge Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop

21st Oct 2024 9:28pm

jst

Member Since: 14 Jan 2008
Location: Taunton
Posts: 7954

Click image to enlarge

A few others on here there too.

Click image to enlarge Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop

21st Oct 2024 9:29pm

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