Bosch cop coils

Operator · 31 August 2016

Because of the demand from many NSX Prime members i finaly decided to start producing coil sets ! Harnes board is under construction. Wires are going into PVC
tube and quality is like OEM harnes!
KIT IS 100% bolt on ! No cutting needed on original harneses ! This was tricky but i find solution for it . Later on it is recomended to conect 12 v power syply to original coil power suply
wires for better reability. First set is ready next week ! No i have tested this coil set in my 1994 NSX about 2000 km. One of best money spend product ! This car is good test bench
car goes in one mile top speed 307 kmh (192Mil/h) and it does not need high boost for it !
First five sets goes 700 USD ! + shipping (us about 45-55usd) .
Send Private mail or e-mail [email protected]

Operator · 6 September 2016

Ready to go ! First set shipped out !

foundry3 · 7 September 2016

Operator said:
Ready to go ! First set shipped out !

Does each coil have its own dedicated driver/igniter?

Can you elaborate what is removed and what gets added when this is installed aside from of course the coils?

Operator · 8 September 2016

foundry3 said:
Does each coil have its own dedicated driver/igniter?

Can you elaborate what is removed and what gets added when this is installed aside from of course the coils?

Look here http://www.nsxprime.com/forum/showthread.php/197826-COP-COIL-set

Gary W · 6 October 2016

Finished up the install, thanks for providing this product.

Gary

Operator · 7 October 2016

"Finished up the install, thanks for providing this product."

Thanks ! No broblem !

Correct orientation is like on picture .

Gary W · 8 October 2016

Corrected.

Gary

nsxinkl · 24 November 2016

I want a set. Please PM me your bank account or paypal. I need it shipped to Kuala Lumpur, Malaysia.

Operator · 24 November 2016

nsxinkl said:
I want a set. Please PM me your bank account or paypal. I need it shipped to Kuala Lumpur, Malaysia.

Message sent . It does not show in my sent box ...If you dont got it send e-mail [email protected]

Jinks · 24 November 2016

These look very cool. What holds them in place? The coil pack cover?

Operator · 24 November 2016

Jinks said:
These look very cool. What holds them in place? The coil pack cover?

Friction holds them. I have rubber grinding macine so i coud make it perfect fit + Rubber booth is very sticy to plug and special crease from beru comes with in the set. if you dont want to hide these under plastic cover you dont need any devices to hold them. But if you put covers on use rubbers what comes with set. (picture)

ryan_axberg · 2 June 2017

dwell time

Operator said:
You need to make harnes for it . +12 volt from old power suply , 2x Ground (same point as oem ingniter) , and trigger wires 1-6 . Bosch cop coil has 4 pins ( 12v , Two ground points , and one trigger)
I try find 6 pin conector for trigger conector, find it after i did this mod , but soldering works too.

- - - Updated - - -

Hi, I have a 1jz that I am wanting to do a coil swap on and I was wondering if you know what the dwell time is on these coils. I have been looking and I can't find it anywhere. thanks

Operator · 3 June 2017

3 ms on start > 2,5 on idle > 1000- rev limit 1,9 ms

Brendan · 8 July 2017

Operator said:
3 ms on start > 2,5 on idle > 1000- rev limit 1,9 ms

Just wondering whats the difference between these coils and the K series coils? Do these coils seal on the valve covers to stop them filling with water?

Operator · 8 July 2017

Brendan said:
Just wondering whats the difference between these coils and the K series coils? Do these coils seal on the valve covers to stop them filling with water?

These coils dont need adapters. I have macined rubber seals to fit OEM covers . Perfect fit . Thats why we dont sell harnes without coils > Coils are special mede for NSX . About Bosch coils performance . I had never
run out spark using these coils ! Ethanol fuel + 2,5 (38psi) bar boost no problem.

NSX1145 · 17 August 2017

interesting. So this is plug and play for stock ECU, or must have EMS?

nsxinkl · 6 September 2017

Will this upgrade get rid of hesitation at heavy load? Currently my turbo nsx hesitates for awhile when i am reaching 200kmh at full load.

Operator · 8 September 2017

nsxinkl said:
Will this upgrade get rid of hesitation at heavy load? Currently my turbo nsx hesitates for awhile when i am reaching 200kmh at full load.

1. C30A has some problems on crank trigger which is located on cam shaft! System works ok when engine accelerates fast. Gears 1[SUP]st[/SUP] to 4[SUP]th[/SUP] there is no big problems but when you chance 4[SUP]th[/SUP] to 5[SUP]th[/SUP] or using 5[SUP]th[/SUP] gear, there is point when cam timing system has huge vibrations and that causes timing errors to engine. When testing a car on 2 mile runaway place you can feel it, data logger has rpm movement 50-120 rpm. Problem is always in same spot 6800-7200 rpm. I made new trigger system on crank and now problem is solved and disturbing rpm movement is only 0-20 rpms (according to HKS datalog value). CAM reference point (sync) is still on cam. With new trigger system rpm signal is very stable at idle up to rev limit, you can feel it and hear it! BUT problem is still there! Cam timing error does not go nowhere, but now your crank timing is perfect and steady and engine runs like a dream.
2. Weak spark ..

hesitates or misfires ?

Mac Attack · 8 September 2017

Operator said:
1. C30A has some problems on crank trigger which is located on cam shaft! System works ok when engine accelerates fast. Gears 1[SUP]st[/SUP] to 4[SUP]th[/SUP] there is no big problems but when you chance 4[SUP]th[/SUP] to 5[SUP]th[/SUP] or using 5[SUP]th[/SUP] gear, there is point when cam timing system has huge vibrations and that causes timing errors to engine. When testing a car on 2 mile runaway place you can feel it, data logger has rpm movement 50-120 rpm. Problem is always in same spot 6800-7200 rpm.

I noticed very slight misfires on my engine too in this RPM range. EDIT: Actually, my logs showed problems between 7000 to 7500 RPM.

A new camshaft/crankshaft position sensor cured it. Mine is a '92 with ~125k miles, so if yours is of similar vintage, you might consider replacing it too.

I like the coils. When one of my coils dies I will most likely upgrade to this.

nsxinkl · 12 October 2017

I bought a kit from as motorsports for my lovefab turbo nsx with aem ems 30-1040. It starts fine but when it warms up it misfires at low rpm. Any suggestion on how to diagnose and solve the problem?

E-Nough Logic · 13 October 2017

nsxinkl said:
I bought a kit from as motorsports for my lovefab turbo nsx with aem ems 30-1040. It starts fine but when it warms up it misfires at low rpm. Any suggestion on how to diagnose and solve the problem?

What are the coil dwell settings in your AEM?

nsxinkl · 13 October 2017

E-Nough Logic said:
What are the coil dwell settings in your AEM?

I have no idea. I will check. BTW what should be the correct dwell settings for this Bosch coil? Thanks

Operator · 13 October 2017

Your Dwell vs RPM Table is too high ( 175 ) It shoud be Flat 100 . Your Dwell vs Battery volts is close OK . But Chance 6 volt value to 70-75 % 12 value to 50 % and 16 to 37 ..make it nice using
Craph table. It shoud work . No you are heating up your series one driver.

It shoud help

nsxinkl · 19 October 2017

Thanks for your suggestion. Much appreciated. However the settings which you recommended didnt solve the problem. My nsx still misfires at low rpm after the engine has warmed up.

nsxinkl · 23 October 2017

anyone with this coil uses aem 30-1040? Would appreciate it very much if you can email me the base map. [email protected]. TIA

Bosch cop coils

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Gary W

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Gary W

nsxinkl

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Jinks

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ryan_axberg

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Brendan

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NSX1145

nsxinkl

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Mac Attack

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E-Nough Logic

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