Thread: fuel eco.
12-17-2011, 08:16 PM #1
well... hello guys, just a question if any of you have an idea how to make my 06 rxp and 08challenger more fuel friendly excp not riding it or staying off the throttle?
i was thinking of doing a turbo build for any of the two, nothing crazy like 500HP but a nice 250ish turbo (or in the case a 500hp turbo that will be restricted or so on)
it can be anything for freemods to something as high as afew K$
but it being resonable and doing major fuel economy (to the few K mods) but if the free mods save me abit id be happy too.
for now its not about $ for gas but to maybe make the run time longer , especially on my challenger......
thanks in advance for all the info/help
P.S. has anyone went turbo on their challenger?
12-18-2011, 12:28 AM #2
You could leave it supercharged and get a fuel controller/RRFPR to adjust the AFR's to lean it out in the mid range and low end.
My setup is as follows and I get 128-140 miles per tank at 6k and if I can stay out of the boost...
Innovate LC-1 or MTX-L Kit
4" Air Intake
Stock 83mm Nozzle
SFR Ride Plate Mod
As far as going Turbo on a Challenger, I have not heard of that. I would put a 4" intake on it. You will see a better throttle response and about 150-200ish rpm's. A supporting prop would also help to. Good luck...
12-18-2011, 12:45 PM #3
hmm... good idea.... but isnt the rotax in my challenger basicly the same as on the rxp? i only see its abit different as theres more room so everything is spread out....
so with your set-up how many MPH do you get, if you WOT it, and 128-140 miles per tank sounds nice, but how much is it above normal?
ive never really measured whats my fuel eco as my cluster doesnt work, but the seadoo haveing a 60L tank, is only afew hours, id say.... 4-5 hours of run time at variable throttle and so...
so figuring my average speed is... 25mph. i get 100-125miles per tank? sounds too good to be true...
so questions in short=
- turbo on challenger= same as on a ski as the engine is the same?
-how many miles per tank does a jetski get stock.
-top speed with your setup ( saying i dont want to go fuel.eco. one day.
12-18-2011, 02:06 PM #4
The engine in the challenger is the same. However, you will NOT see the same gains as you would in a ski. Look in the boats section. There is a guy on the east coast that builds the challengers and speedsters. He did a build thread I think.
Miles per tank on a stock ski is around 90-98 ish. WOT you will get about 50-60
Stock ski runs 68 at WOT and at 6k it runs 42-45 ish.
12-18-2011, 04:16 PM #5
i realise about the decreased gains, but i would imagine how much $$$ it would take to get my challenger to 70MPH to beat stock skis around here.... the look on their faces=princeless....
and will do...
so are ALL those mods neccesairy to get that kind of fuel economy ? what would be the best bang for the $?
im guessing RRFPR?
im not looking for speed yet again, but to save fuel... so things like intake grate, even if they help, i wouldnt need them, as well as the RE blockoffs....(those fins on the side right?)
EDIT: what would be the aprox. value to get everything on that list? im guessing.... 2500$ ? labor will be mine... i might be horribly off... but... yea... thanks for the reply/help btw.... helping me alot on this.
EDIT 2: looks like 5000$ or more O_O.........
12-18-2011, 05:45 PM #6
12-18-2011, 05:59 PM #7
12-18-2011, 07:10 PM #8
12-18-2011, 07:52 PM #9
12-19-2011, 05:59 PM #10
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