racer59

iTrader: (2)

Does anybody no what the maximum dwell time, that these coils can run. Thanks

str8dum1

iTrader: (11)

i wouldnt run more than 5ms and even that would prolly melt the coil over time

djamps

iTrader: (1)

^ yea, you'll know you've exceeded it when it bubbles near the connector

Italianjoe1

iTrader: (6)

Lol, all the Nissan coils fail like that bubble up on the outside. I have several spare QR and VQ coils in my toolbox at work from full sets we've replaced. All the bad ones look half melted on one or two sides. Never seen that type of failure on other brands, nothing visibly obvious like that.

racer59

iTrader: (2)

Thanks for that, i am running 2.8ms at 6000rpm so it should live at that hopefully.

str8dum1

iTrader: (11)

wow surprised you dont get blowout with 2.8 ms. I run between 4 and 4.5 across my dwell table based on RPM and MAP

racer59

iTrader: (2)

Thanks for the info do u no what the factory set them to?
How long do they last at that charge time, seems like a heap of dwell.

str8dum1

iTrader: (11)

every basemap from Haltech, Proefi, etc comes with dwell times set to 4ms.

Thats got to be close to stock

My car is 2003 and never had a coil problem

zioKanez

iTrader: (1)

Sorry to up an old 3d. About dwell time for VQ coils, this is my setting with 4ms:




is it fine to have it decrementing like this at higher rpm, or can it be set flat to 4ms all the way up to 7k rpm?

PS: i run the Okada plasma.

350z-Helsinki

iTrader: (1)

Our setup is really similar. I run a HKS8555 too with a link ecu.
Did you have issues with coils and went with the Okada plasma. I think they should be able to answer your question about the dwell time.

I also have had issues with stock coils after they heat up. I can only do less than two laps on a race track before they start acting out and not firing properly. Now I'm wondering should I get OEM Hitachi coils or something else. Okada plasma is really expensive, but I'd like to know why did you choose them and how are they working for you?

meatbag

iTrader: (9)

4.4ms max at 7500rpm is what i ran without any blowout at 40psi