Greg W Posted June 28, 2018 Report Share Posted June 28, 2018 Hey all, figured there is a wide range of experiance on this forum Looking for smart pencil coils that are compact and powerful this is for motorcycle application , so space is limited on the top section and running E85 at 3 bar or higher and potential at Methanol I have LS2 truck coils on a couple of my LSR bikes and they work great on all fuels i have used or but there just too bulky for some of the bikes thanks in advance Oh had the old melting coils with power on motor not running the other day , trying a Haltech ignitor something i dont usually run but seemed simple setup at the time to get a new setup timed (the CDI i would have run was not triggering the timing light at cranking ) I am set to falling edge trigger , could the haltech be rising edge ? Quote Link to comment Share on other sites More sharing options...
Adamw Posted June 29, 2018 Report Share Posted June 29, 2018 Although neither of these are what I would call "pencil coils", the most common COP coils I see used in a variety of engines and put out a decent spark are the Toyota/denso 1NZ/1ZZ/Etc, available in a few different lengths. Another one gaining popularity recently is the R35 Nissan GTR coils, the snouts are removable on these so the length can be customised. Most of the true pencil coils I know of dont have built-in ignitors. Bosch/Porsche 0 986 221 051 looks promising size wise but I have no idea on its grunt or reliability. Quote Link to comment Share on other sites More sharing options...
Greg W Posted June 29, 2018 Author Report Share Posted June 29, 2018 Thanks Adam The Toyota coils look good for clearance in the 1UZ version and may have to look at aftermarket versions for the power needs R35 GTR read well in doing a bit of a search i think the 051 connector position would be a problem Audi coils any good ? again the size may beat me Think i will trawl the wreckers for samples and see what is best fit Also some good reading from platinum racing comparing the R35 and 1UZ coils and SQ engineering on the various toyota versions R35 look to have big dwell time anywhere you see them listed or discussed Quote Link to comment Share on other sites More sharing options...
Adamw Posted June 30, 2018 Report Share Posted June 30, 2018 4 hours ago, Greg W said: Audi coils any good ? again the size may beat me I dont know how powerful they are but the Audi R8 ones are commonly used on performance stuff in Europe. Most of the other VAG coils seem to have a bad reputation for reliability. Quote Link to comment Share on other sites More sharing options...
Greg W Posted August 18, 2018 Author Report Share Posted August 18, 2018 Update, the R35 look to be a good fit on both the Kawasaki and Suzuki if i make screw on caps for the spark plugs about 5mm longer. The longer adaptors for the COP are too long , Good option to the bulky LS2 coils i am currently using Quote Link to comment Share on other sites More sharing options...
Stevieturbo Posted August 18, 2018 Report Share Posted August 18, 2018 It's a motorbike application....not use some motorbike pencil coils ? And for those who have issue with coils being powered up but not running some will wire the +ve feed to the coils via the fuel pump trigger so they can never be energised unless the engine is turning. Although that shouldnt really be needed. Quote Link to comment Share on other sites More sharing options...
Greg W Posted August 21, 2018 Author Report Share Posted August 21, 2018 Thanks Stevieturbo not enough power in the mc pencil coil , hi boost and fuels ranging from hi lead to methanol Also i want something i can run straight from the ecu Quote Link to comment Share on other sites More sharing options...
Stevieturbo Posted August 22, 2018 Report Share Posted August 22, 2018 Are a lot of the bike coils not internally amp'd ? CBR etc ? I've seen car guys used some of those as an upgrade. Of course lots use the car Honda/Denso coils for serious boost too....modern stuff is just damn powerful ! https://www.hpacademy.com/forum/general-tuning-discussion/show/79 Do you have room for the likes of IGN1A remote coils ? Not as neat as a pencil, but regarded as one of the best coils. Quote Link to comment Share on other sites More sharing options...
Greg W Posted August 23, 2018 Author Report Share Posted August 23, 2018 Cbr coils are good with a CDI,pretty much the current setup on the bike but space is so limited on that one i want to loose the CDI controler , The R35 coils will work good there by the look , even found some old race plugs that had a tall screw on tip that are perfect for the few mm i need to make this work A few of the other bikes have more room available near the plugs and i am running the LS2 truck coils on them We are a landspeed motorcycle team with bikes in Australia and USA and working towards a common engine management platform Quote Link to comment Share on other sites More sharing options...
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