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Jun Type 3 Fuel & Ignition Map - Stock ITR Block

Posted: Wed Jul 12, 2006 4:09 am
by Johnny_9
What is the fueling and ignition adjustment for Jun Type 3 Cams vs. Stock ITR Cams on a stock ITR block?

Before 6000rpm - lower volumetric efficiency? After 6000 rpm - higher than stock volumetric efficiency? So

< 6000 rpm decrease fueling and add timing vs stock
> 6000 rpm add fuel and decrease timing vs stock

Posted: Wed Jul 12, 2006 10:21 am
by Spunkster
Impossible to say without properly dyno tuning.


Posted: Thu Jul 13, 2006 4:22 am
by Johnny_9
I am posting this to discuss from a "theoretical" perspective since we should guestimate how the volumetric efficency should change.

Posted: Thu Jul 13, 2006 6:45 am
by scottishpol
Why do you think, that you have to make a theoretical guestimate of VE?