owenpilson
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| posted on 17/3/04 at 09:48 AM |
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rev limiter
rather than paying 90 quid for a omex rev limiter can you get the rotor arm centrifugal type limiter for a pinto?
i used to have a bmw525 that had this type and you could buy rotor arms with different limits.
owen.
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owenpilson
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| posted on 17/3/04 at 02:54 PM |
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all i'm after is a simple fail safe, so i dont snap any bolts
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ceebmoj
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| posted on 17/3/04 at 06:45 PM |
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hi
I was wondering if you had any details of the soft and hard cut arrangements on the system as I have built such a system my self.
I am interested in the soft cut and found that developing a system that smoothly removed the power and hence controlled the RPM at the limiter can be
challenging. Personally I uses system of causing a miss fire on successive cylinders (as is used in many cars in the event of a coolant failure)
however if you are not careful this can lead to pre ignition if you have in correct coil control (or on a more modern car ecu it is much easer to
interrupt the ecu pulse train).
The problem that I am presently working with is keeping the engine vibration to a minimum under the new firing sequence as this unsettles every thing
and I am presently working on a dynamically changing firing order to keel every thing smooth so that as you come to the rmp limit the power just
washes away and won’t rev any hire as opposed to the two band effect or similar in some systems.
If you or your sun want to talk then I am more than happy enough to swap some idears and show you my testing results to date i.e. a gig or so of
oscilloscope traces.
Ps if I hade kept to just building the car I would be a lot further ahead now then I am.
Blake
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