Quote:
Originally Posted by johnung
My upgrades were installed at Kies:
1) Pure Turbos Inlet
2) Turbosmart N55 Diverter Valve
My "before" logs weren't useable but I did get one good "after" log and will put the link below. I also attached a summary page of my MAF readings versus yours. Mine peaked at 4.1 higher than yours.
http://www.bootmod3.net/log?id=5da5d76bc090c64dcce41c79
Our cars are the same: 2015 335 N55 EWG
So I'm trying to understand how our mods may differ to see what may be different.
You had previously listed your mods as:
Injet intake
Charge Pipe
VRSF 5" IC
Catless DP
BM3 E30 Map
BMW Trans Flash
Pure Turbos N55 Inlet Pipe
My mods during my log were:
M Performance Intake/ stock air filter
Evolution Raceworks Charge Pipe
Wagner Competition EVO1 FMIC
Fabspeed Catted Downpipe
BootMod3 Stage2 N55 EWG 93 Octane
BootMod3 Auto Transmission Flash
Pure Turbos N55 Inlet Pipe
Turbosmart N55 Diverter Valve/Blow Off Valve, Plumb Back model
I'm scratching my head trying to figure out what might cause the differential.
1) Our intakes are very different. Bryan and I were discussing that some intakes can sacrifice actual power to make noise but we didn't discuss the mechanism for why that happens.
2) Our BM3 tunes are different due to fueling but I would assume that an E30 tune would be the same or better than a 93 Octane tune.
3) My DV is an upgrade from stock but my assumption is that wouldn't come into play at all with the accelerator floored in 3rd gear. That's a small snap shot of data when the valve on either car should not open.
Somewhere in this thread it was mentioned that there is some correlation between MAF value and horsepower/torque. Do you know what that value is? Where is comes from? How accurate it is?
Any thoughts on all this? |
Yeah.. I should have higher maf numbers than you in general because of the tune, all things being equal that is.
The difference is the intakes... I guess we cant use any of the data for comparison sake because we have different intakes. There is something interesting that I noticed after looking at my older logs though, more on that in my reply below.
Yeah. there is a relationship between maf numbers and power. the higher the number the higher the HP. Ive seen numbers ranging between 7-10hp per... so using 10hp... 40 on the maf reading would be 400hp etc.. 41 would be 410hp etc... but there isnt an exact number but it does give you a good easy way to see power increases or a decrease.