Just dynoed my 6.0 at 22lbs boost, e85 , billet s480, 218/218 cam, 4" exhaust, 15 degrees timing and made 704 rwhp. This is through a 4l80e, ford 9 inch, and unlocked converter.

Seems low.... yay or nay?

 

What gear was the pulls done in? I've seen 620whp @15 psi on e85 on 16 degrees of timing, i don't think your to far off tbh, but what do I know?

 

What Intercooler if any??
Do you have any other power numbers to share, what was it at 10-15-20psi?

 

How rich was it?

 

Treadstone 1300 vertical flow intercooler.

 

10 psi was 520 ish..on e85

 

what is that 1300? I do not see that number on their site?

 

First off, I've never been a big proponent of dynos. I ran at the track, a lot.

My best educated guess is that your converter is turning into an oven.

I needed the absolute tightest converter CircleD could make in 258mm in order to hold 22 psi, and even then it was not as efficient as ideal.

If you have a converter designed for lock up under power, I would suggest doing that and re-dynoing. Or, log converter slip thru your datalogger if you can.

 

Trv259 intercooler from treadstone

 

Its a Pro yank single disk converter. Not going to lock this one up on the dyno.

I was just anticipating more rwhp as I made aroun 630 rwhp with a 2.3 whipple at ~14 pounds boost.