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Fuel consumption on twin weber a14
Just popping in
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Hi guys..iv'e almost got al the parts(gx head,twins,wildcat branch,still looking for cam) for my A14 twin weber project and was just wondering how the fuel consumption would be..at the moment I get 'bout 400km on a full tank with the stock carb..

Posted on: 2012/8/2 13:42
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Re: Fuel consumption on twin weber a14
No life (a.k.a. DattoMaster)
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I have an A15 reground cam to a Wade 140, pretty lumpy cam. Haveproper specs on a printout from wade cams. Let me know if you're keen.
I wouldn't expect anything economical from the carbs...

Posted on: 2012/8/2 14:03
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Re: Fuel consumption on twin weber a14
No life (a.k.a. DattoMaster)
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if you want to beat your friends 2 liter golfs then forget about economy on webers and start thinking boost and efi.

Posted on: 2012/8/2 14:18
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Re: Fuel consumption on twin weber a14
No life (a.k.a. DattoMaster)
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a 1400cc engine shouldnt be that bad on fuel worked or stock.yes if u drove around full throttle everywhere its going burn fuel but if its well tuned and u drive it normally it be fine,it all in the tune mate a14 and webbers is a must u will never look back
nice cam is needed for it all to work but.

Posted on: 2012/8/2 14:49
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Re: Fuel consumption on twin weber a14
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You'll get better than half the 400km/tank. If you drive it light on the throttle and keep speeds below 100kph, and tune the carburetors carefully you could probably get 3/4 of stock fuel economy.

Posted on: 2012/8/2 22:09
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Re: Fuel consumption on twin weber a14
No life (a.k.a. DattoMaster)
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Depends on the camshaft and tune but to beat a 80kg heavier golf mk1 with a 2L youll need a fair bit of poke and best go for A15 crank and bigger bores at least closer to 1600cc.

Depends where you are but a place I go to are able to use e15et conrods on offset ground A15 crank using custom cast pistons for 84mm stroke and 82.5mm bores on sleeved A14 /a15 block. 1796cc yet at the end of the day supercharged A15 is better.

Posted on: 2012/8/3 4:13
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Re: Fuel consumption on twin weber a14
No life (a.k.a. DattoMaster)
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Why are you trying to beat 2 liter golfs D? Am I missing something :S
Also D, what crank would you use to stroke and A15??

Posted on: 2012/8/3 4:46
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Re: Fuel consumption on twin weber a14
No life (a.k.a. DattoMaster)
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In another thread thats what his mates has he wants to beat.

A15 crankpins offset ground for the extra 2mm stroke
There are pistons off the shelve late thumper dirtbikes
but will end up costing $400-450 anyways to buy 4 slugs
so best get some high silicone ones cast with modern
casting tech from CP or Arias they makes some awesome
cast pistons that challenge forgies 4 cost/performance.

Autospeed article somewhere about budget custom cast slugs.

Sleeving the block is 100-120 each sleeve to suit slugs you
supply first from footscray engine reco services.
They will just use Loctite to seal the bottom or send it
away for grouting if need be but loctite is ample.

1800cc, supercharger, water inj and 2 inch SU would be nice
with some serious pipes & 38mm in/33ex valved H89 ported head.
Few boxes would handle the power though bar a 63a or 71 series.

Posted on: 2012/8/3 5:19
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Re: Fuel consumption on twin weber a14
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i got about 7-8L per 100k on the hwy with my worked A14 twin 40's with a 4 speed .

Posted on: 2012/8/3 10:02
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Re: Fuel consumption on twin weber a14
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thanx for the replies guys..will post some pics when finished..anyways going to keep the bottom end stock for now to keep in budget..im selling my bike for the mods hehe love the nissan'q more hehe

Posted on: 2012/8/3 19:01
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