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Amazing Engine Tech.. and it's real CHECK IT OUT!

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Old Jul 30, 2003 | 04:11 PM
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Amazing Engine Tech.. and it's real CHECK IT OUT!

Check it out guys
http://www.jandssafeguard.com/safeguard.html

It's pretty amazing. The sensor basically detects of knock/detonation is immenent and then appropriately retards the cylinder to prevent that from happening (again) and thus you can get more power out of the engine and do it very safely. It actually only retards one cylinder at a time... thus not killing the power of the rest of the cylinders. It's awesome especially for forced induction and getting more horespower safely!!!
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Old Jul 30, 2003 | 04:47 PM
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From their website:

Using a single knock sensor, the system detects the onset of detonation and retards the timing on a per cylinder basis. A mode switch lets you select a maximum of either ten degrees or twenty degrees of knock retard. In the ten degree range, the unit retards one, two, or three degrees per ping. Double that for the twenty degree range. The system is always trying to re-advance to stock timing. In the ten degree mode, it re-advances at the rate of one degree every twenty revolutions.

The system does not need a cam or crankshaft reference to determine which cylinder to retard. The unit is programmed to "know" that the knocking cylinder is the one that just fired, and that it won't fire again for two more revolutions. When the knocking cylinder comes around to fire again, software dials in the retard amount for that cylinder. It does this as each cylinder goes by, building up a different retard amount for each cylinder.

The unit has a high energy ignition with constant energy dwell controller. The system monitors the coil current, and adjusts the dwell time to achieve seven amps of coil current. Compared to a GM HEI, this is a 62% increase in energy stored in the coil. The system can also be used to trigger an MSD.

The Marine/Racing version features an adjustable Velvet Touch rev limiter. At the selected limit, the system fires two cylinders, then skips one, and repeats this sequence. For six cylinder engines, the sequence is fire three, then skip two. If the engine goes 100 RPM above the selected limit, the system will skip as many cylinders as needed. A test point is provided to adjust the limit, scaled at one volt per 1000 RPM. For example, if you want to set the limit at 6250 RPM, adjust the knob so that the RevTestPoint reads 6.25 volts.

Standard automotive units are also available for single coil foreign and domestic vehicles as well as multiple coil applications, including Honda, Miata, Subaru, Eclipse, Toyota.
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Old Jul 30, 2003 | 07:22 PM
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Also for those of you reading this... there is a more active version of this thread at:
https://www.evolutionm.net/forums/sh...100#post382100

It is cross-posted so that more people can see it from both Evo and Lancer sections as the system has good merit. There is a great post on the EVO thread already by Silver Surfer talking more about it!!!

No I'm not a salesman and have absolutely no vested interest in this at all. It's just a really great thing for those who are working on tuning and experimenting where they may risk detonations and other things which can easily happen when adjusting fuel maps and boost conditions.
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