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PostPosted: Mon Jun 08, 2020 6:48 pm 
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848cc
848cc

Joined: Thu Jun 04, 2020 12:18 am
Posts: 1
Hi all,

Been in the Wilderness the past 12 years or so and finally getting back into the MIni.
I have to pull out the SU as there is no fuel getting into the cylinders, assumption is that it may be the tube from the fuel bowl to the jet.
While the Carby is off, is there any expertise in regards to sizing of the needle and jet?
The engine is a 1330 with an RE13 cam.

Thanks in advance
Gilly


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PostPosted: Tue Jun 09, 2020 10:03 am 
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1275cc
1275cc

Joined: Wed Jan 19, 2005 1:52 pm
Posts: 2571
Location: Brisbane
good starting point is OA6 needle.

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The bitterness of poor quality (or Crappy Workmanship) remains LONG AFTER the Sweet Taste of Low Price is forgotten.


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PostPosted: Tue Jul 14, 2020 2:20 pm 
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848cc
848cc
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Joined: Sun Jul 17, 2011 10:29 pm
Posts: 38
Location: Dubbo - NSW - Oz
I'm running an RB needle in my HS6, Minisport heated manifold and maniflow extractors. It's 1387cc, 10.4:1 and 266ss cam. Good compromise on performance and fuel consumption. Richness set with Doc's exhaust analyser.

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77 Clubby Van - Brooklands Green 78 LS Fitout -1100S Rebuilt 2015, 1387cc stroker, 105HP ATF @ 6200 rpm, RE266SS cam, 1.3 roller rockers, 10.4 comp, remote S Box
71 MG Midget - 1298cc - Sebring Bonnet & Lenham GTO rear in Jag BRG + 14in Chrome wires.


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PostPosted: Thu Dec 17, 2020 7:59 pm 
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998cc
998cc

Joined: Wed Jul 02, 2014 11:38 am
Posts: 508
OA6 and OA7 were the go to needle for six cylinder holdens
The OA7 is leaner throughout the rev range .
OA6 worked for me and was dynoed at a local tafe
People that wanted richer went RH or SB
The original 1800 TW needle worked good also .
The ramp off idle is the critical bit .
Download winsu and use the compare needles function


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