Back from the dyno!!

[shadow88]

And....well, it's kind of disappointing. Air fuel reading went pretty lean after the boost came on strong (about 3500 rpm's) Dyno printout coming later this evening.

Stock smec ( I know, I know) 806 fuel injectors and 2 cold starts switched on at 14 and 18 psi. Similar results with Mopar Performance smec. Adjustable fuel pressure regulator pegged closed (about 60 psi static).

Now for the question, will +40's work with the stock or M.P. smec? The dyno operator and I decided to pinch the fuel return line and that only caused a fuel leak with no noticable improvement in a/f readings.

The #'s 214 whp at 4400 rpm (seems promising, no?) 267 w ft/lbs at about 4000 rpm. Air fuel took a dive after 3500 rpm. The run was stopped at 4500 rpm because it was about 13.5 : 1 a/f reading.

As always, Thats in advance for any and all inputs.

[GLHSKEN]

Your pump is bad. You should have been pig rich

[shadow88]

I agree I should have been pig rich, but. clearly that wasn't the case.

You really think so? Hell - I'll order a 255 because I thought I needed it just for the insurance. But no to injectors? You don't think so?

[turbovanman²]

The 255 is good insurance. When was the last time you changed your fuel filter?

You can run +40's, just need to turn down the base fuel pressure but as you know, a custom cal is the best way to run them. I would replace the fuel pump first as go back before installing +40's or changing the injectors.

[shadow88]

click on it and it grows! I wish i had the fuel to continue into the upper rpm's where it pulls harder.


I wish I knew how to size these things better. sorry