Your advice is very helpful and much appreciated as always guys, I'm gonna start saving again, if I can get 15 reliable rwhp for $300 I'm gonna go for it.
Please understand in some rare cases, I've seen peeps go on the rollers
with a NA combos and only gain like around 5rwhp but usually, when that
happens, they only got bolt ons.
I don't want you to think its a given ... You'll find 15rwhp
Peeps with h/c/i combos like you have the supporting mods of larger
inj's and matching meter which rarely are close to getting it right for
an af ratio that will make maximum power.
Sooooo ... Its not all that uncommon to be farther off and the gain
will usually be a bit better with a combo like that.
Take my sig combo for instance
I had worked with it a good bit to get the maf curve and injectors
dialed in pretty close before going to the dyno for its first baseline
pull.
I already knew I was gonna peg the meter but the dyno was free
so I thought ... what the heck ... I could always cut it short and I
wanted to see what was what with all the new parts anyway.
We made the first pull for a baseline. It was a bit more lean than
I would have left it. The guy looked at my datalog of the pull and
was wanting to see more about how the Tweecer worked and
asked me to make a few more pulls.
Dropping the ratio on pulls 2 & 3 from 13.25 to 12.5 yielded about
9rwhp IIRC. No tweecs other than the fatter ratio were done so
you can see ... the pulls were not in any way what you would
call a tuning session
Now ... I tell you that to show even though I already had it close
before going to the dyno ... I gained 9 horses with a final ratio
value of 12.5 to 1.00
The first time I made a WOT blast for a baseline datalog on that
same combo to gather data to start my WOT af ratio tweecing,
I saw the higher end of the curve be as fat as 11.25 to 1.00
If I would have been that fat for my first baseline pull ........
I think most peeps would agree ... the gains would have
been greater than 9rwhp
See what I mean about
Inj's & matching caled meters can be a good bit off
from being what one would call optimum
Maybe this can give you some stuff to think about
Grady