coil packs
04-26-2011, 02:44 AM
#1
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coil packs
My workshop mechanic told me the reason for my coil packs and crank sensor failed to work and had to be replaced was that i drive it not often enough. Is this true?
Last edited by gys wessels; 05-03-2011 at 06:21 AM.
04-26-2011, 06:52 AM
#3
gys wessels, I am on here alot. I haven't heard of coil packs or sensors going bad due to lack of use. The coil packs were not the most robust when the car first came out. There has been 3 revisions of these. I don't know what sensor he is referring to, but it must have been one of those things that go bad on a car.
The Firefox browser has a spelling checker built in and will help eliminate the critics that are looking for minutia to complain about.
05-04-2011, 05:29 AM
#11
He is talking about the eccentric shaft position sensor (in rotary talk). Basically a crank angle sensor. It is located next to the main pulley and can be seen from the bottom of the engine bay with the driver side wheel removed. It is simply bolted on with a harness attached to it. The sensor alone should be less than $150 to replace.
Last edited by SayNoToPistons; 05-05-2011 at 10:34 AM.
05-04-2011, 11:08 PM
#12
Seriously the Mazda coils suck. Mine wore out in less that 30k. Your engine will thank you. How many miles are on your car? Coils shouldn't fail because your don't drive the car enough. Not saying you didn't need new coils, just saying its a poor excuse from the mechanic.
05-05-2011, 03:20 AM
#13
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my car is on 91200km = 57000 miles, I also thought it to be a lame excuse from the mechanic. Crank angle sensor must be the sensor he replaced, thanks for the right terms, this is my first rotary so I am learning all the way! Must say it will not be the last!
08-28-2011, 10:55 PM
#15
Dammit Jim, I'm a doctor.
My DIY D585 coils. Went with simple bracket that provides better cooling. Not shown are the MSD plug wires. Total cost about $375 with new plugs. Two hour build, but I designed bracket on the fly.
https://www.rx8club.com/members/kidzoom-19848-albums-my-ls2-yukon-d585-diy-coil-upgrade-3965/
https://www.rx8club.com/members/kidzoom-19848-albums-my-ls2-yukon-d585-diy-coil-upgrade-3965/
08-29-2011, 07:36 AM
#17
Dammit Jim, I'm a doctor.
Better cooling than the back of coils mounted directly on a solid metal plate bolted to the motor with very limited air flow. Heat is not good for electronics. It appears all the good coil upgrades have heatsink (MSD and D585.) Just sayin'. Probably does not effect this application, but has to be better than factory.
08-29-2011, 07:51 AM
#18
you do know that the "solid metal plate bolted to the motor" acts as a heat transfer interface right? Correct, heat is not good for electronics, but you successfully removed any thermal transfer properties so now the hotzone of your coils are on the coils themselves rather than being transferred to a larger surface area.
08-29-2011, 10:59 AM
#19
Better cooling than the back of coils mounted directly on a solid metal plate bolted to the motor with very limited air flow. Heat is not good for electronics. It appears all the good coil upgrades have heatsink (MSD and D585.) Just sayin'. Probably does not effect this application, but has to be better than factory.
08-29-2011, 04:06 PM
#22
Dammit Jim, I'm a doctor.
If you have nothing productive to add to this conversation, "Get a life."
08-29-2011, 05:45 PM
#23
Living is best Modified.
Who says that KidZoom doesn't have a better way? There's always room for improvement - or in this a maybe cooler running car, longer lasting equipment. This, of course, is coming from someone who hasn't taken the time to do the RnD like Charles did though 
If you had access to a Dyno, you could test run your car multiple times and measure the mean temp of 2 sets of runs with an IR gun. 1 without, 1 with, 1 without and 1 with.
I mean really - Whose to say that dumping water in your gas tank doesn't get you 0-100 in 4 seconds without trying? I sure as hell wouldn't try it.
Although most people would scoff at this extreme measures, it's how improvements are made. It's people asking questions which people think don't need to be re-asked and re-evaluated.
If you had access to a Dyno, you could test run your car multiple times and measure the mean temp of 2 sets of runs with an IR gun. 1 without, 1 with, 1 without and 1 with.
I mean really - Whose to say that dumping water in your gas tank doesn't get you 0-100 in 4 seconds without trying? I sure as hell wouldn't try it.
Although most people would scoff at this extreme measures, it's how improvements are made. It's people asking questions which people think don't need to be re-asked and re-evaluated.
Last edited by RogueTadhg; 08-29-2011 at 05:48 PM.
08-29-2011, 06:56 PM
#24
ask yourself a question ... why do microprocessors, amps, voltage regulators, and cpu's have heatsinks ? ....
The thing with asking questions is that there is an answer, but that answer in most cases is not the solution, however, that answer can be applied towards reaching a solution, or, confirming that your hypothesis was not correct.
Take a look at the markings on the bottoms of the stock first revision coils on the S1, you will probably notice markings on the bottoms due to thermal conductance and a loss of efficiency from when the coils fire. What CRH/BHR has done with his coils, is use high efficiency coils, as well as couple the coils on a thicker, more efficient thermal interface material (the bracket), thus spreading the heat away from the concentrated hot zone.
I agree that you can't knock the guy for trying, but blindly doing something without understanding the science behind it is as stupid as ... like you said ... pouring water in a gas tank assuming it will help performance.
The thing with asking questions is that there is an answer, but that answer in most cases is not the solution, however, that answer can be applied towards reaching a solution, or, confirming that your hypothesis was not correct.
Take a look at the markings on the bottoms of the stock first revision coils on the S1, you will probably notice markings on the bottoms due to thermal conductance and a loss of efficiency from when the coils fire. What CRH/BHR has done with his coils, is use high efficiency coils, as well as couple the coils on a thicker, more efficient thermal interface material (the bracket), thus spreading the heat away from the concentrated hot zone.
I agree that you can't knock the guy for trying, but blindly doing something without understanding the science behind it is as stupid as ... like you said ... pouring water in a gas tank assuming it will help performance.
08-30-2011, 09:21 AM
#25
Who says that KidZoom doesn't have a better way? There's always room for improvement - or in this a maybe cooler running car, longer lasting equipment. This, of course, is coming from someone who hasn't taken the time to do the RnD like Charles did though
If you had access to a Dyno, you could test run your car multiple times and measure the mean temp of 2 sets of runs with an IR gun. 1 without, 1 with, 1 without and 1 with.
I mean really - Whose to say that dumping water in your gas tank doesn't get you 0-100 in 4 seconds without trying? I sure as hell wouldn't try it.
Although most people would scoff at this extreme measures, it's how improvements are made. It's people asking questions which people think don't need to be re-asked and re-evaluated.
If you had access to a Dyno, you could test run your car multiple times and measure the mean temp of 2 sets of runs with an IR gun. 1 without, 1 with, 1 without and 1 with.
I mean really - Whose to say that dumping water in your gas tank doesn't get you 0-100 in 4 seconds without trying? I sure as hell wouldn't try it.
Although most people would scoff at this extreme measures, it's how improvements are made. It's people asking questions which people think don't need to be re-asked and re-evaluated.
Last edited by Charles R. Hill; 08-30-2011 at 09:27 AM.