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Jul 18, 2011 11:26:59 GMT
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Hi People I installed a Powerspark electronic ignition kit 45D to my reliant at the weekend and wanted to let you guys know the improvement as a result. Firstly the install went to a total of 25 mintues from the moment I cracked the packaging to the moment I turned the ignition. It started first time and once I had timed it up (5 minutes) I took it for a spin. I made such a difference to the general running and it was like a new vehicle, I have never had it pull throughout the revs like it did. I would certainly recommend this upgrade to anyone looking at electronic ignition, because for less than £50 with a Lucas Gold sports coil I could not see any better deal and wish I had done it sooner. I got mine here but I did see them on fleebay too www.simonbbc.com |
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Last Edit: Jul 18, 2011 11:27:32 GMT by treetopper
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Jul 18, 2011 16:00:19 GMT
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Yup, had a Lumenition setup on my V8. Would fire up first time every time no matter the weather or how long it had been sat.
Some people complain of the reliability of aftermarket ignition setups but in my experience, keep the module in a cool, dry location and it'll last a lot longer. Mine was sat behind the headlights on the inner wing.
--Phil
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Well this is all internal under the cap so perfectly placed too, nice and dirt free and water tight (nearly)
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...ah, but you ain't felt good until you've tried 3d computer mapped ignition. That's what I'm running on my classic. It is more expensive and more difficult to setup but boy is it rewarding!
I've been for a few tuning sessions. You can do it on the motorway or on the rolling road.
I have a knock detection system on my engine so when it knocks a light comes up on the laptop screen and I roll it back by a degree or two for that engine load point. As a result of this every spark happens at the perfect time for maximum power. Fuel is injected the same way.
The difference is that sequential mapped ignition can give you a spark any time you want at any rpm or load point. A rotor-arm setup is dependent on rpm and things like vac advance capsules. The chances of having far less than optimal ignition timing for any given load-point are pretty high.
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ChasR
RR Helper
motivation
Posts: 10,307
Club RR Member Number: 170
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Jul 20, 2011 11:18:44 GMT
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I have to admit I may be looking into 3D ignition. Something like Megajolt would do the job well.
I shall also say that to a degree (I shall explain later why) I am for electronic igntion systems. The 'B has never run so consistantly as it has on electronic igntion. Starts dead easy, doesn't need the world's supply of choke (maybe a new thermostat all those years ago helped there too), and it is indeed a smooth runner. That's only on a Hall effect transistor arrangement too.
However, the Stag's Newtronic optical ignition is giving me some issues. Firsty the dwell angle is miles too small (15-18 at the moment compared to the specified 27-33), so IMO is a contributing factor in the car not running well as it should. Furthermore, other owners have noted that on this system on their cars can cause their cars to pink at stock timing values unless they back off significantly on the timing front (I am talking well over 5 degrees retardation), an issue that has not been noted on other sytems like Pertronix. However, it is probably at least 5-7 years old, and now a semi obsolete system (rotor choppers are no longer available).
Due to that, I will probably go back to twin points on that. Even with a dwell meter to hand, it will be interesting setting them up! Wish me luck...
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Jul 20, 2011 11:34:42 GMT
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You can get something called megasquirt as well. That is a home-build pcb system. Can buy pre-assembled kits off eBay too. The megasquirt system will do injection and boost control as well but no engine management system has to control everything. You can easily set it up to do ignition one weekend and then setup fuel control a few months later. The other advantage of full sequential ignition is the energy you can get from modern capacitor discharge coils (CDI). When you have one large coil powering several cylinders the spark can never be quite so ferocious. The time needed to build up enough energy for a big spark has to be divided by the number of cylinders the coil is igniting. My engine can be run using a CDI coil-pack which was made by the original engine manufacturer but that's not compatible with my ECU so I've gone for Bosch pencil coils instead.   When the engine is running high cylinder pressures these high energy ignition systems can be run with big plug gaps and non-protruding spark plugs and this raises the detonation threshold. |
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Jul 22, 2011 16:08:00 GMT
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Saweet although I think that would be mental in a Reliant engine bay  |
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Jul 23, 2011 10:13:20 GMT
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Jul 26, 2011 15:28:09 GMT
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Robin 850... that looks pretty gruesome !! ;D
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Jul 26, 2011 16:09:48 GMT
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Not sure how much of the Kitten is actually left. It looks a lot like the never boring concept of strapping a saddle to a cylinderhead.
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