hello i am new to posting on this board ,i have a dynamic efi tuning question.I am doing my volumetric effiency learns and i am finding my low speed ve tables at around 2000 rpm and 80 KPa is above 90%.my car runs nice but does not pull to red line like it should.I know there are other details about my car that are needed to make any educated advice so hold on here we go.first its a volvo not a third gen,I am running throttle body fi with a dynamic efi board on a 350 sbc.mods 10.5-1 comp,eldlbrock heads,air gap manifold,gm hot cam(roller)external fuel pressure regulator,454 injectors,bored throttle body,wide band O2.

 

The DIY_Prom board is a better location for this thread. I'll move it after I post. Once you get the AFR in line it is then time to play with the SA, that is what makes the power. As the SA is changed the reported AFR will also change some.

So you need to go back & forth with them.

With the Edel heads be sure to use the correct spark plug. Likely a 5/8" hex with a 3/4" reach and flat gasket seat. Many use the stock CI head plugs which is why I mentioned this.

The 5.4L BIN SA tables (with the '113 heads) is likely a good starting point for the Edelbrock heads.

RBob.

 

What is the DC% during event?

 

My advance is pretty much all in by 2800 rpm,runnin 38 degrees.
Where do I check my duty cycle? Thanks for the help.

 

Running spark plugs from a Volvo V8.same compression ratio with a gasket.

 

I have no idea which spark plugs a volvo uses.

99% of the aluminum SBC heads use a plug such as the Autolite 3924.

Injector DC% is on the main WUD display and in the analysis data.

38* BTDC may be too much SA.

RBob.