VS-VY Enhanced Factory Bins

[0081(2)]

NICE WORK!!! Can't wait to see a bit more on the flash pcm's soon now you have 1 to test it on!

+1 for this

[The1]

yeh unfortunately the code is a bit different, so id rather get the other models out as there nearer completion of next version.

[vlad01]

had a little time to do some more code, have added in this feature, finished testing on the bench so will test on my VS V6 during the week

Can you explain the purpose of this feature? and how it works?

[The1]

I plan to do a little doco up for all the enhanced features when i get the new version out and get time to do it lol, i have a excel spreadsheet you can use to input your camshaft settings to help work out valve timing and EOI timing, the xdf table is based on crankshaft degrees.

EOI = End of injection.

So End of injection is precisely that, then minus the time it takes for the injector pulse to squirt the fuel which then is start of injection.

The biggest use for this is when changing camshafts, because the intake valve opening time is now different you will want to change when the injector fires so you can get a complete burn again, this helps to no end especially with idle quality.

So tuning with this you would start EOI when the valve opens and work back till you hit the richest point, i have found changing it further away will not make it any richer, so meaning your getting all the fuel into the chamber. Obviously injector size plays a larger part in how much time you have to play with and what RPM your tuning it at. Injectors running at high DC% obviously wont have much time when there not open.

As always correct me if im wrong

[antus]

Yep, to tune the timing of the sequential injection to match the open valves. Good stuff!

[Helical]

Awesome. Out of curiosity, are the stock timings spot on for stock engines or do they benefit from tweaking?

[The1]

Stock timings are flat, single table only which is coolant based. On V6's it's set for 5degrees before Intake valve opens. So with enhanced you can tweak all RPM levels and still have a cold table.

[Helical]

Cool, are you planning on implementing this in the $A6 bins for the V8?

[The1]

it comes down to room, if there is room i will put in anything that will fit, obviously larger tables for spark / fuel and MAF extension is number 1 then everything else.

I have been doing the "Base" coding and testing on VS V6 N/A as there is alot of spare room compared to all other models and so happens this is my daily car as well, i modularize the mods so to speak in code blocks, so my idea is i get all the things we want coded, then i will workout what i can fit in each model and recode it for that. This part isn't super huge i just need to put the tables/scalars in the xdf, then find the existing code and variables and free variables and work it in.

Currently i wanted to finish this End on Injection mod which i have now and next is RPM limit mod, being able to set the fuel cut higher. Once those are done then VT/VX/VY S/C V6 will come.

VT S/C enhanced i just have to write in the EOI and RPM code. VX/VY S/C i havn't started. VT has a bit of room, VX/VY does not, even removing the EGR code i dont think will give enough room but will see when i get there.

Then once there done there is big demand to look at flash pcm's and try and write it into those as well, i haven't touched one for ages so not sure on the free room situation there.

Have had very little interest in V8 stuff but is on the list after the above.

[The1]

if you were after EOI mod, then yes should be easy and room shouldn't be a problem for just two 2D tables. EOI Mod should make it's way into all enhanced mod versions as anyone using enhanced mod would likely have Rockers or CAM done which would benefit from it.