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__________________ 2007 UltraClassic\103"BB\.030 Cometic Head Gasket\SE 255's Doherty PowerPACC w/vents\Supertrapp SE's\SERT\Bagger Brace M1 15W-50 incrank\Redline MTL in Primary\Redline Shockproof in Tranny My other toy!
__________________ 2007 UltraClassic\103"BB\.030 Cometic Head Gasket\SE 255's Doherty PowerPACC w/vents\Supertrapp SE's\SERT\Bagger Brace M1 15W-50 incrank\Redline MTL in Primary\Redline Shockproof in Tranny My other toy!
Thats not the case, at least in my experience. I run the 255's and find that they make good power right on up to 5000 rpm. It would be nice to do a dyno run or two to see where they do drop off. But for now the autotune is doing its job.
Thats not the case, at least in my experience. I run the 255's and find that they make good power right on up to 5000 rpm. It would be nice to do a dyno run or two to see where they do drop off. But for now the autotune is doing its job.
I'm glad your auto-tune is doing such a good job, but you must admit that the 255 is not known for it's upper range power. Most dyno sheets show it falling off fast after 4k rpm.
It is a great cruising cam though. I came close to installing one myself.
Thats not the case, at least in my experience. I run the 255's and find that they make good power right on up to 5000 rpm. It would be nice to do a dyno run or two to see where they do drop off. But for now the autotune is doing its job.
This is true. The 255's peak at about 5k and make more HP than stock, maybe +5%. Their forte is in the low-end and midrange, of course, and if you want to build a dyno-challenge champ you won't get it with these cams--but that's not their design.
__________________ 2007 Street Ultra
Stage 1½: Fuel Moto Power Package, SE255 cams.
I'm glad your auto-tune is doing such a good job, but you must admit that the 255 is not known for it's upper range power. Most dyno sheets show it falling off fast after 4k rpm.
It is a great cruising cam though. I came close to installing one myself.
I guess this depends on your definition of "falling-off," but I've seen quite a few charts on 255's, both in TC96's and 103's, and every one of those has peaked at about 5k. After that HP begins gradually decreasing, which is similar to stock except the 255's in a TC96 produce about 5% more peak HP than a stock motor.
__________________ 2007 Street Ultra
Stage 1½: Fuel Moto Power Package, SE255 cams.
