2009 CFR1000 going to the DYNO 2/12 advice on mods/setup - HCS Snowmobile Forums

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Old 02-04-2020, 07:47 PM   #1 (permalink)
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Default 2009 CFR1000 going to the DYNO 2/12 advice on mods/setup

So I'm going to dyno tune my sled next week. Right now it has a D&D trail ported Motor, D&D Y pipe/Pipe/Can, (No I was never able to get a tune from D&D as silly as that sounds), SLP intake with some extra breather ports, V-Force reeds, Power Commander ECU. The shop will be doing the actual tuning of the ECU while its on the dyno. Apparently it hooks right to the crank shaft so clutching is not an issue. Just didn't know if anyone had a "must do mod" that is actually dyno proven before I go. (For example the exhaust valve spacers or delete) etc. Don't need "it feels faster or sounds faster haha" but actual proof. Let me know what you think! Thanks!
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Old 02-04-2020, 10:02 PM   #2 (permalink)
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Current Sled(s): 03 440/700 SnoPro or 10 CFR8/Priceless901
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I would leave everything exactly the way you plan on riding it down the trail along with the tune put on it.
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Old 02-04-2020, 10:03 PM   #3 (permalink)
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Current Sled(s): 03 440/700 SnoPro or 10 CFR8/Priceless901
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I would bring your stock muffler, good chance it will make more power than the can.
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Old 02-04-2020, 10:14 PM   #4 (permalink)
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Take fuel with you, 91 and 93, a hose to drain it, extra container, your clutch puller. Maybe pull the clutch off first. Saves time.
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Old 02-04-2020, 10:16 PM   #5 (permalink)
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those were fast sleds stock
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Old 02-05-2020, 09:06 AM   #6 (permalink)
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Yes I got the tank bone dry, filling it with fresh 91 octane since that is usually whats available in northern Maine where I ride. I am also pulling the clutch ahead of time and removing all panels that might be in the way etc. I told them I want to be able to hold the throttle wide open down long rail road beds and huge lakes and they said that won't be a problem to simulate those conditions. Good call on the stock can, I may try that depending on the time and results. And yeah the sled is already fast , just want to have a "final tune" that is safe so I can leave my laptop at home haha.
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Old 02-05-2020, 09:13 AM   #7 (permalink)
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No panels to remove on a cfr. Side shield flips up right? With a map switch you could have them make a hotter map for short races/playing and then another one for lake runs. Could be an 7-8hp difference
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Old 02-05-2020, 09:54 AM   #8 (permalink)
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Quote:
Originally Posted by stronger800 View Post
No panels to remove on a cfr. Side shield flips up right? With a map switch you could have them make a hotter map for short races/playing and then another one for lake runs. Could be an 7-8hp difference
True, I'll probably just wire in a 12v NO/NC switch. I can't spend $50 from Power Commander hahaha.
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Old 02-05-2020, 10:44 AM   #9 (permalink)
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What track will you be running? I'll be looking for some top end #'s from you, good luck!
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Old 02-05-2020, 05:37 PM   #10 (permalink)
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Quote:
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What track will you be running? I'll be looking for some top end #'s from you, good luck!
So the dyno machine bolts right to the crank. You pull the primary clutch off completely. Kind of nice because it gets rid of all the other things that could be wrong with the sled haha. Not that I think I have anything wrong, just saying. Worse case I have to re-clutch for the extra power but I don't think I was that far off anyways.
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