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There are multiple choices but one that everyone agrees works well, inclduing HD itself, is the Screamin' Eagle one that has a 90 degree bend intake and tapered air cleaner that points forward. I cannot recall the HD name for it.
Yes, the HD "Heavy Breather". Be sure to get the version with the correct manifold size connection for your bike. Different HD motorcycle models have different intake diameters. Your hD parts guy should be able to get you into the correct size Heavy Breather.
Just got my 2017 Slim S tuned by Ed at the Dyno Difference in Dallas Texas. bike has D&D Low cat Exhaust and Kury Mach 2 AC. This is the fourth bike Ed has tuned for me and for those of you that know Ed, he is one of the best tuners in the business and has a very conservative Dyno. With the Slim S being such a light weight bike (for a Harley...LOL) I asked Ed to tune for a broader TQ curve instead of trying to hit peak #'s. He tuned it first for peak #'s and got 96.9 HP and 116.1 TQ. He then re-tuned it for a little broader TQ curve and optimum throttle response.
Final tune is 95.3 HP @ 5100 RPM and 113.7 TQ @ 3772 RPM
100 LB's of TQ from about 2250 RPM to to 5000 RPM
110 LB's of TQ from about 2750 RPM to 4300 RPM
From 2500 RPM to 5500 RPM the TQ averages 106.76 LB's
I absolutely love the way this thing pulls from Idle to about 5000 RPM. Spinning a HD with the 255 cams much past 5K RPM is just unnecessary wear and tear on your motor.
CVOJOE. Good to see that. I had my Fatboy S tuned by Dyno. I wasn't sure where the numbers should be. i have a Rush Wrath pipe. the stock AC is a ventilator. I added a K&N filter to it. Mine went for 114 on tq. 93.8 on HP. the bike feels great.
I think it needs re geared though.
CVOJOE. Good to see that. I had my Fatboy S tuned by Dyno. I wasn't sure where the numbers should be. i have a Rush Wrath pipe. the stock AC is a ventilator. I added a K&N filter to it. Mine went for 114 on tq. 93.8 on HP. the bike feels great.
I think it needs re geared though.
Most of the dyno charts I have seen have been very close to the #'s we both have. This Slim S makes me smile
Most of the dyno charts I have seen have been very close to the #'s we both have. This Slim S makes me smile
What do you mean "Re-Geared"???
He means (a) changing the front belt pulley from 32 to 30 or (b) changing the rear pulley from 66 to 68 or 70, or doing BOTH. The results are very, very impressive. These bikes come from the factory with way-too-tall gearing in order to pass emissions and noise drive-by tests. You can see this by looking at the shorter gearing on bikes from a generation ago. BIG difference.
They are great on the highway. I wan't more from take off's. Once rolling. The S is good at getting up to speed. I wan't "Quick out of the Hole" take off. LOL!
I was shocked when I first rode the Fatboy S. I think by changing the gearing would wake it up.
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