Thread: VE likes lean mixtures! :)

Yah what does that equate whp and wtq wise ?

Stratton.

yeah, the same timing, just change in afr

the numbers are CRANK power and torgue

I believe it close to 215whp


BTW, anyone have possibility to attach files here?

I was wondering about it too!!

Mine doesn't improve at all over 13.2 AFR

Very impressive.. Need Titanium retainers for the 20V head? I got some..

215whp sounds about right for said set up.

Stratton.

Aren't the VEs very lean at WOT stock? 13.8-14:1 from factory.

Are you using stock ignition tables?

Basically you're telling half the story if you kept timing the same for all the runs. Yes, if you don't have the power to change your ignition settings, you can try to run on the lean side to try and pick up some power. You have a few degrees of freedom on how to control the speed of the flame front and cylinder pressure. If you lean the mixture, you increase the flame front speed which can lead to more power.

However you should really tune for best torque at each of these AFR's and see which one will net you the most overall power. With this information you paint a more complete picture of the VE's response to timing and fuel

Ive found this as well, as much as 8whp gains in mide to top end areas with going from mid 12 up to 13.3/13.4.

I agree with stock motors yes. The stock internal motors make good power with the lean mixtures.

But once the cr goes up like in mid 12 I have realized that they make more power with richer mixtures. I gained power on my high cr motor from going from 13:1 down to the mid 12:1 afrs..

MBT is what you're referring to, methinks...