Restoration-Mini

Technical Forums => Maintenance and Modifications => Topic started by: bcirilo on July 27, 2018, 06:25:59 PM

Title: need help on 123 ignition curve
Post by: bcirilo on July 27, 2018, 06:25:59 PM
Hello,
I have bought a 123 ignition usb for a classic mini, but I'm trying to create the best curve for it and I not having any luck :(

Can you please try to help me?
I'm from Portugal, and my mini is a 1380cc engine,  with a Swiftune SW5, Flat Top Omega Forged Pistons, big valves, doble springs on the rocker assembly 1.5 ratio...

Please help me!!
Thank you very much for your time,
bruno cirilo
Title: Re: need help on 123 ignition curve
Post by: MiniDave on July 27, 2018, 06:47:47 PM
Bruno, the best thing you can do for your car is to get it on a rolling road with someone who understands your engine and carburation. There is no formula for which curve is best, you can only put it under load and see what it does, then adjust accordingly.
Title: Re: need help on 123 ignition curve
Post by: croc7 on July 30, 2018, 08:35:18 PM
Www.tdcperformance.ca has graphs showing different curves for engine specs.  Also instructions on curve selection.  Hope this starts you in the right direction.