Posts ref Alarm wire blowing engines.

[88GT-R]

question about plugs ,does a spark get blown out at high boost if its weak?

Called flame out....Yes, it does happen and feels like a rev cut, as there is no/limited ignition.

J

[BlitzBoy]

mmm thank God I got the Twin Power fitted dont want any Flame outs from a weak Spark, do people with FDs upgrade to FC coils?

[TRex]

That depends
 
If your using an ingnition amp then it probably will be set up that way - the Crane cams do this - multi spark at idle and low rpm - single juice spark above about 2k.
 
For normal setups - where the ECU is firing the coils - the duration of the pulse sent to the coils can be reduced at higher RPM, potentially giving lower spark energy.  Coils have a working frequency range - the coils in cars are no different, so there must be a theoritical max RPM before the problem becomes bad.  Without testing this I don\'t know what that would be...

 Question not answered!

[88GT-R]

I know of a couple in Yankland substituting for FC coils. I think they are stronger, maybe due to their location, but they are pretty effective. Having a larger stronger spark is always a good improvement, but having effective ignition control is more important.
I have not needed to ad an ignition amp to my setup.

J

[TRex]

Argh, don\'t worry bud... I promised I won\'t get tied up in this nonsence thread!  
 Best spend my time surfing p0rn... http://plugin.smileycentral.com/http%253A%252F%252Fwww.smileycentral.com%252F%253Fpartner%253DZSzeb008%255FZNxdm798AXGB%2526i%253D3%252F3%255F8%255F9%2526feat%253Dprof/page.html" target="_blank">http://smileys.smileycentral.com/cat/3/3_8_9.gif" alt="SmileyCentral.com" border="0">http://plugin.smileycentral.com/http%253A%252F%252Fimgfarm%252Ecom%252Fimages%252Fnocache%252Ftr%252Ffw%252Fsmiley%252Fsocial%252Egif%253Fi%253D3%252F3_8_9/image.gif">

[Prof]

Question not answered!

Enlighten us then o great sage.... :p
 
You post plenty questions and opinions, but facts....
 
Not really trying to have a go here - I only met you once so I don\'t really know you - but what question do you really want answered ? :confused:

[Prof]

I know of a couple in Yankland substituting for FC coils. I think they are stronger, maybe due to their location, but they are pretty effective. Having a larger stronger spark is always a good improvement, but having effective ignition control is more important.
I have not needed to ad an ignition amp to my setup.
 
J

John - what coils/ECU are you using on your FC ?

[88GT-R]

John - what coils/ECU are you using on your FC ?

I thought you knew, mate. Microtech LT8 and standard coils.

J

[Prof]

I didn\'t know - and besides you got all sorts of wonderful in that engine bay of yours !  I would have guessed Microtec though, it seems the way most of the FC boys are going.

[ro284]

Trex, I promised I won\'t get tied up in this nonsence thread!

You keep your promise, But it\'s not a nonsense thread! it\'s very important to all us rotary owners to learn as much as possible about any possible risk to our engines, and how to deal with it, then given the information so far (which has been very interesting,) we can protect against any possible risks, if there is a risk of (IMHO already undersize cables) being further weakened by adding an alarm, i for one want to know the best way round the problem, even if it means not having a clifford alarm at all, i plan to rewire the fuel pump (heavy guage) with a in line concealed fire/security switch,as a start.
Bob

[88GT-R]

I didn\'t know - and besides you got all sorts of wonderful in that engine bay of yours !  I would have guessed Microtec though, it seems the way most of the FC boys are going.

TBH, I would run a well speced REW off a Microtech any day. Microtech has been popular with the FC crowd since it first came out.

J

[TRex]

Ok you want Facts as I won\'t waste space losing you in theory and leasons on wiring...
 Here are some facts!  MY facts!
 This is my last post on this subject...

Can an Alarm destroy/detonate your engine?

 Me personally.... \'NO\'..
 1. I have had many many Marques, from BMW\'s, Supra\'s, Impreza\'s etc etc etc, all had Alarms fitted (we talking well over a dozen cars here).. most if not all were Modded in some form or fashion.. again most if not all were used/abused, wether it be hardcore drag racing, track, drifting whatever...
 And guess what, I never ever had a problem with the Alarm screwing up the car...
 So what is that, \'Luck\'?
 
 2. Unlike some \'book and keyboard mechanics here\', I can hold my own with how a car works and know the Alarm cannot destroy an engine like it is described in this thread..

 3. I seem to keep very good company over the years, as I have meet hundreds of people just like myself in \'Scenerio 1 above\' that have also had many many vehicles with Alarms, and I have never recalled anyone of them that had the \'fabled\' missfortune of Alarm detonation or the likes..
 Shall I play the Lotto?

 4. Been involved in many many car clubs and forums over the years which attract \'thousands of car owners with alarms\'..  I cannot recall at anytime a thread ever surfaced about this.

 So I started with a few dozen cars, then into the thousands easily without seeing this problem...

 5. have a look at question 5 in this link, from the horses mouth! click click
 Don\'t think they would be selling \'MILLIONS\' of alarms worldwide if it was a time bomb! (and this is just one company)

 No bullsh1t theory from a book, just Facts...
 Believe what you want!

 Rgds :Thumbs-up

[Newera]

Has anyone actually traced said wire to see where it goes? I\'ve heard from a specialist that it doesn\'t go to the coilpacks, but to the ECU, which is switched on by this wire, then amongst many other things is responsible for controlling the coil packs via the engine harness. This would make sense, as the ignition timing needs to be altered and is not done so by vacuum.

I\'d have thought this being the case, that either the ECU would work, or not work with slightly reduced current if at all. Electronics tend to either work, or not - they don\'t work at a reduced capacity with a slight drop of current.

Miguel.

[Newera]

On a different note - AFIK only excessive pressure/heat or both will ignite a mixture of fuel/air without a spark.

Carbon and hot spots are formed on very old engines with a lot of carbon build up.

For piston engines tit used to take over 100,000 - 150,000 miles to become a problem to the point it might cause a hot spot / rise in compression.

With today\'s petrols with additives that clean the combustion chamber as they burn, there\'s no significant carbon build up. I presure the rate of carbon build up is along similar lines in a rotary, as I\'ve seen no evidence otherwise on the surface of rotors when the engine\'s opend after high mileage.

Miguel

[Prof]

Trex,
 
That\'s a lot of good anecdotal evidence, and I suspect the incidence of alarm\'s causing engines to fail is very infrequent.
 
I checked out the clifford site, and the one thing that springs to mind is the fact that the say it will not cause a problem to the engine in any way " since a correctly installed Clifford system cannot damage a vehicle in any way whatsoever."
 
I imply by that statement that wire thicknesses and so on should be sufficient for the job that needs doing. A further read in the thread you posted "(some vehicles require additional relay modules, installation time or pin-switches). "
 
I suspect the real question behind this is why do rotaries pop - it would be good to see some sort of breakdown of what caused engine failure, if this was even possible to diagnose in every case, so that we can all build stronger and more reliable cars.
 
I just want to learn from this site mate, as do many others - I thank you for taking the time to post, and for Whartog for trying to condense the interesting parts from the original post. I offer my very extensive electronic knowledge for free - oh and I am pretty useful on a keyboard too !
 
Cheers,
 
Prof :cheers