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4Rt Fuel Consumption


barfy
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I did my first Scott yesterday. I was most disappointed that I ran out of fuel before the first fuel stop.

Is it normal for the 4RT to be thirsty?

I have a S3 280 kit and programmable throttle body with the laia Sanz 280cc map.

Want to go back next year to prove to myself that I can get much further, but want to understand why I might have run out of fuel first and this is the only thought I have at the moment.

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The new fuel tank only holds 1,9 liters, not much to get around.

And a 280 kit won't make it more economical I'm afraid.


I might get me the DDM "large" fuel tank kit from H&D Racing for my 2015.

Edited by guys
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I've been very close to running out before and thats a 250 with the standard map. How close were you to petrol 1? There is a lot of fast flat out going on that stint, so it goes through some juice. Also simon wearmouth on a new 260 repsol ran out in the last fields and pushed it to the finish!

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I don't know, but one of the back markers came back with my petrol can from the fuel dump and said that it was just over a mile. Felt like I'd pushed it three miles by then though (well a couple of hundred yards anyway). Next year a H&D tank sounds like a good answer, one of those plastic number plate tanks or a 1 litre Sig bottle from Millets.

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I was running 10 / 43 gearing, normally I'd run 9 / 43. And yes I was in the stream bottom. When it stopped I changed the plug because I didn't think I'd run out that soon. Bl##dy pleased when someone came back with fuel and it started. I was wondering how I'd get it out!!

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I saw this film on the Honda Spain website, where at 2:25 Amós Bilbao criticizes the fuel capacity for trials over a greater distance.

And that's why I was searching for a handy solution to that problem and stumbled op on the H&D kit.

Maybe that's why Montesa delivers the seat, with storage room for extra fuel, for free with the standard 4RT.

https://www.youtube.com/watch?v=QeKo7GcRP10

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  • 1 month later...
I've put the DDM "large" fuel tank from H&D Racing on my new 4RT and the first test was very good, still starts first kick.


I did remove the bank angle sensor and replaced the large capacitor with a small one from Mitani, to create some space for the fuel pump.


I saved about 660 grams weight, but I only gained about 0,3 to 0,4 liters of fuel capacity as opposed to the claimed 0,5 litre, but every bit helps i suppose. :)

Edited by guys
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I've been very surprised at how much fuel my 2014 is getting through compared to my 07? I recently ran out three times at a road trial, the first time before I'd got to section 15 after filling it to the brim.

Edited by the addict
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