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race tuner questionElectrical |
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07-02-2008, 05:54 PM
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#1 (permalink) |
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Start The Engine
Ride: 2007 SE Ultra
Join Date: 2008, Apr 01
Posts: 29
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race tuner question
I had a set of 258 cams put in my 07 SE Ultra . The HD dealer put the map 176QF002-000 in it. When looking at the tuner cals it says that map is for HDI 1800 CVO SE. My first question is what does HDI stand for. Before the cam change I had a stock engine with high flow and a thunder header and race tuner. It dyno'd at 90HP and about 110 pounds of torque. I changed the exhaust to Vance and Hines true duals with monster slip ons and the cam change to the 258's and now it dyno's at 84 HP and 92 pounds of torque. I know the thunderheader makes torque but I didn't think I'd lose that much. I wonder if the map they put in is a mismatch.
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07-02-2008, 11:37 PM
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#2 (permalink) |
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Moderators
Ride: 2008 Heritage Softail FLSTC
Join Date: 2007, May 18
Location: The Shires UK
Posts: 3,003
My Mood:
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Re: race tuner question
HDI usually stands for Harley Davidson International, not sure on the maps i think Fisher or Doc would be able to advise better
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not riding fast just flying low peace thru superior horse power |
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07-03-2008, 02:26 AM
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#3 (permalink) |
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Play The Throtle
Ride: 1981 FLH Shovel
Join Date: 2008, Apr 21
Location: Maryland
Posts: 299
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Re: race tuner question
Did you put 258's in a bike with stock pistons ?Those cams are nice for a top end rush with a decent midrange but need higher compression than stock.The Harley high compression pistons will help a great deal but those cams aren't the greatest choice for an Ultra.Oh and HDI is indeed Harley Davidson International.A return to the thunderheader would be a good idea also.
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Go out on a limb,that's where the fruit is anyway......... Last edited by Fisher : 07-03-2008 at 12:38 PM. |
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