andyfloyd

That was 93 + vp octanium. Which is roughly 100 octane. On 93 it's in the 370 whp range less boost and less timing

andyfloyd

I got a request for timing maps for my car. So I figured I would share them here. Now keep in mind my car is 8.5:1cr and on the high Boost map I'm running 100 octane gas, on the other map is less aggressive for 93 octane. My cruise/ low load noon boosted rows are all the same on both maps. This is a hydra so the timing maps are massive but this could easily be Interpolated into a ms3. I don't claim that my map will work for you car so run this at your own risk, but I've put a lot of time into it for my setup.



top picture is non boosted rows, middle is high Boost 100 octane, last is 93 octane. On the 93 map I have boost cut set to 22psi so I dont use any of the rows after that. I just noticed the timing in the 25psi row is wrong but it doesnt matter as the car never sees that on low boost.

DNMakinson

iTrader: (3)

I created this multiple ways:


My Actual Table



Andy's 93 octane Table set up to 21psi



Andy's Table Spanning only to 18 psi (my upper limit) Compare to the next picture, which is my table Interpolated with the same rows and columns as this one (cell to cell correlation).



My Table to my upper values, but with Andy's interpolation rows and columns.


What needs to be taken into account:
1) I'm running a stock BP4W with 9.5:1 pistons and a tiny TD04 turbo. I don't make near the power at the same boost levels as Andy, and I may well be trading timing for boost at the top of the MAP to be easy on the rods.
2) Our 100 kPa timing is pretty close.
3) At 15 psi, he has a lot more timing, but that same timing might bend my rods on a cold day.
I could think about running lower boost, but more timing. Then again, I am running higher compression.
4) The indications are that I could likely profit with more timing in cruise (37 to 77 kPa)

I tried to capture the fastest changing areas when I cut out lots of rows and columns to get from 32 x 32 to 16 x 16.

I will not jump to Andy's cruise timing, but I will move that direction.
.... Time to build those headphones, or trust my knock sensor ...

DNM

andyfloyd

Looking forward to seeing that and curious how it runs on your car. What's your current map look like?

andyfloyd

Also keep in mind those low rows 12 and 14* timing are for burbles. I have another map without that as well.

I have 8.5 compression pistons but I also have the Vulcan hg which is thicker than OEM, that also lowers cr. But then my block has been decked twice and my head once so who really knows. It's likely 8.6 ish

I run that much timing because this low mount manifold really allowed it. With the FM manifold the timing was probably 1-2* less on either map.

allofit

Did you tune timing on a dyno, Andy? I've got the same low mount Kraken manifold and I'm amazed at how much timing I get away with on my stock engine (10:1 pistons, 15psi max, 91 octane).

I love the 22psi tune is your 'low boost' map

DNMakinson

iTrader: (3)

@andyfloyd will you also publish your AFR targets in cruise 2500-3500 RPM, 40-75 kPa?