If this doesnt make 400whp Im burning it
#202
Senior Member
Thread Starter
Join Date: May 2017
Location: Louisville,KY
Posts: 1,132
Total Cats: 97
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.
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.
Last edited by andyfloyd; 08-21-2021 at 10:57 PM.
#203
Retired Mech Design Engr
iTrader: (3)
Join Date: Jan 2013
Location: Seneca, SC
Posts: 5,012
Total Cats: 859
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
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
Last edited by DNMakinson; 08-24-2021 at 08:35 PM.
#205
Senior Member
Thread Starter
Join Date: May 2017
Location: Louisville,KY
Posts: 1,132
Total Cats: 97
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.
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.
Thread
Thread Starter
Forum
Replies
Last Post