Rev Limiter Question...
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From: Arizona
Rev Limiter Question...
So I have a 97 Ultra that I have been tinkering with. As of now it only has tru-duals, hiflow cans, K&N filter and a Dobeck Tuner. I have a cam designed for the injected bagger and larger injectors that will be going in very soon.
It pulls well then the limiter kicks in at about 5k. Feels like there is more past 5k. Most of the aftermarket ignitions that I look at do not work with EFI. Is this something that I can have the Harley dealer do with a program or do I need an hi-performace ignition?
Thanks
Travis
It pulls well then the limiter kicks in at about 5k. Feels like there is more past 5k. Most of the aftermarket ignitions that I look at do not work with EFI. Is this something that I can have the Harley dealer do with a program or do I need an hi-performace ignition?
Thanks
Travis
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lots of people are using the dynojet pc-5 from fuel moto with a map for your particular combination. it should raise your rev limiter also. when you change parts they can send you a new map at no charge.
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Joined: Apr 2011
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From: Ottawa, Canada, summer, Daytona Beach Florida, winter
Just a caution, the rev limiter is there for a reason.
In a stock internal configuration, pistons, rods, crank shaft that sort of thing, you are limited to how fast these heavy stock parts should turn.
Rotation speed beyond the rev limiter using stock internals is risky business and can lead to the grenade effects, seen it a few time myself, not real pretty.
In a stock internal configuration, pistons, rods, crank shaft that sort of thing, you are limited to how fast these heavy stock parts should turn.
Rotation speed beyond the rev limiter using stock internals is risky business and can lead to the grenade effects, seen it a few time myself, not real pretty.
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I was thinking that 6200 is a good limit. I think that anything beyond may be asking for troubles. I am going to be putting in the cam and trying to get a feel for where it likes to pull. 5k just seems so low.
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rev limit should be at 5200.
the evo screaming eagle was at 5500, and police ignition at 5800
aftermarket dyna and crane ignitions were user adjustable.
it was thought that the motor could turn to 6000 rpm in stock condition without problems.
My crane I had at 5500, and i rarely hit it as the torque would fall off before that
so that's what it was...the EFI evos---? but I would check crane see if they have an ignition---because it is not just the limit, but the advance and the advance slope.
mike
the evo screaming eagle was at 5500, and police ignition at 5800
aftermarket dyna and crane ignitions were user adjustable.
it was thought that the motor could turn to 6000 rpm in stock condition without problems.
My crane I had at 5500, and i rarely hit it as the torque would fall off before that
so that's what it was...the EFI evos---? but I would check crane see if they have an ignition---because it is not just the limit, but the advance and the advance slope.
mike
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Besides the limits of the stock rotating assembly and valve train, there isn't much "umph" above 5k with a stock cam. It would take for ever to wind out to 6200.
Last edited by fabrik8r; Oct 20, 2011 at 09:24 PM. Reason: critical element
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