Jun Type 3 Fuel & Ignition Map - Stock ITR Block

s300 and SManager software questions & answers
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Johnny_9
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Joined: Sun Apr 09, 2006 5:12 am

Jun Type 3 Fuel & Ignition Map - Stock ITR Block

Post 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
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Spunkster
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Post by Spunkster »

Impossible to say without properly dyno tuning.
Johnny_9
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Theory

Post by Johnny_9 »

I am posting this to discuss from a "theoretical" perspective since we should guestimate how the volumetric efficency should change.
scottishpol
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Post by scottishpol »

Why do you think, that you have to make a theoretical guestimate of VE?
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