Rolling road result

[RichV6]

Just had the Cerb on the rollers and think something is is holding it back at peak rpm. Managed just over 300 bhp at 5500 rpm which is when the power curve flattened to 6000 then sat at just under 300 bhp to 6500. Air fuel ratio at 13 to 14 at all times. Car is a 4.2, standard though running a decat. Anyone any thoughts?

BTW well pleased with the result, but greed is good and I'm sure theres more to come.

If anyone can tell me how I'll post the graph.

[Vixpy1]

eek.. 13 to 14, too lean

[RichV6]

So, back to basics, too lean - not enough fuel or too much air. Possible the decat has upped the flow through the engine? Will setting up properly cure this or are we looking at something more major.
Who is the AJP V8 guru in the North East? And whats the best AFR for this engine.

Rgds

Richard

[cossiemetro]

my 4.2 made 360 bhp with linked de-cats set up by TCS jools for a comparison

[kojak]

RichV6 said:

So, back to basics, too lean - not enough fuel or too much air. Possible the decat has upped the flow through the engine? Will setting up properly cure this or are we looking at something more major.
Who is the AJP V8 guru in the North East? And whats the best AFR for this engine.

Rgds

Richard

You need to speak to trackcar. Hes on here a lot.