Hi guys,
I have upgraded my stock carb to a weber 32/36.
But I have been having a problem with fuel consumption.
It is running at about 13l per 100km where the stock carb was down at about 9.5l.
Do I need to look at changing the jets in it?
Any help you may have would be greatly appreciated.
Cheers
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Suzuki sierra weber carb
Re: Suzuki sierra weber carb
Bigger carb=more fuel and air in, only way to get better fuel economy would be to put the stock carb back on.
Grow some balls.
That is all.
That is all.
Re: Suzuki sierra weber carb
Rubbish.
How often are you over 90% throttle? That is the time your shiny weber will be letting more air/fuel in.
The rest of the time you are using less than the capacity of the stock carb so less air=less fuel.
Check the mixtures on a dyno or with a wideband on the road and change jets to suit.
You can fiddle with jets on the road for a long time to get it rightish without a wideband O2 sensor but you run the risk of leaning out and destroying shit.
30% extra fuel is ridiculous, You can get it better.
How often are you over 90% throttle? That is the time your shiny weber will be letting more air/fuel in.
The rest of the time you are using less than the capacity of the stock carb so less air=less fuel.
Check the mixtures on a dyno or with a wideband on the road and change jets to suit.
You can fiddle with jets on the road for a long time to get it rightish without a wideband O2 sensor but you run the risk of leaning out and destroying shit.
30% extra fuel is ridiculous, You can get it better.
V.W.Dave said:
But here is the beauty of this entire thing..... Its your car you are the one that has to drive it. Make it how you want it.
But here is the beauty of this entire thing..... Its your car you are the one that has to drive it. Make it how you want it.
Re: Suzuki sierra weber carb
everything you need is in here. gets interesting around Page 4
http://www.outerlimits4x4.com/viewtopic ... 4thrashing" onclick="window.open(this.href);return false;
http://www.outerlimits4x4.com/viewtopic ... 4thrashing" onclick="window.open(this.href);return false;
1999 SQ625 Manual Grand Vitara. Lifted, Twin Locked, 31' Extremes, dual Batteries, Winch.
Lots of custom gear as I cant afford the proper stuff.
Lots of custom gear as I cant afford the proper stuff.
Re: Suzuki sierra weber carb
Its been along time since I had mine but with the gearing I had at 90km the throttle was only just on so it was ok on fuel.
Once the secondaries are open thats when you will start using more fuel.
Once the secondaries are open thats when you will start using more fuel.
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