1.8vvt in to 90 - Check my spark map!
 

Hey all,
Just completed the swap of a 01-05 VVT engine in to my 1990. I am using a DIY MS3x and base map from DIY Autotunes MSPNP Pro. Havent touched the spark map just want someone to take a glance and see how it looks. Sure its fine if its what DIY Autotune is shipping on their MSPNP Pro.
Setup:
1.8 vvt engine
Stock 1.8 vvt fuel
Stock 1.8 vvt coils
Squaretop Manifold

Any input would be greatly appreciated
Thanks!
https://cimg2.ibsrv.net/gimg/www.mia...b66ddd2929.jpg

I don't understand why they taper timing until the 90 kpa row and then jump back up.

Thought that seemed kind of odd.

Here is my naturally aspirated VVT spark map for comparison.

Been running this for roughly a year on 93 octane, could run it on 91 most likely if its all you have available. I pulled a lot from different tables and made it pleasing to my eyes

https://cimg1.ibsrv.net/gimg/www.mia...7d247492eb.png

Yeah I’d make 90+ Kpa looks like the 80 row, maybe even take a few degrees out. I typically don’t see much gain over 28-30*.

Awesome, thanks guys just the input I was looking for!

Too much resolution below 100kpa versus above it, for me.

Looks like too much timing in the 250 row and possibly the row below it for stock CR.

Lean cruise can possibly go higher by a couple of degrees in the 3000-4000 range for interstate fuel economy.

Possibly a silly question but this being a naturally aspirated build (no boost plans atm) is it worth messing with the table up there? Or possibly even rescaling it to closet to 100kpa to get finer resolution down there?

If no boost you should have your tables end at 101-105 KPA like HowPrayGame there. Having them go into boost is just a waste of resolution. Fuel, AFR, ignition and pretty much any other table can be rescaled.