made 386 on a mustang dyno... did no changes at all the to car, dynoed on a dynojet and made 459

dont have a scanner for the graphs sorry.

also peak power on the mustang was at 7700 and only said i was revving to 8400, on the dynojet it was at 8200 and revving to 9k which is where my rev limited is set

so which dyno is more accurate? also the car trapps 134mph on et streets

 

sounds like the mustang dyno wasnt set up properly

 

im not 100% but i think the change from a mustang dyno to a dyno jet is supposed to be about 15%.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92redhatch &raquo;</TD></TR><TR><TD CLASS="quote">im not 100% but i think the change from a mustang dyno to a dyno jet is supposed to be about 15%.</TD></TR></TABLE>

I hear that as well.......

If you do the math 15% of 459 = 68.85
Subtract that from 459 and you get roughly 390..... which is very close to his old mustang dyno number.........

Makes me feel a bit better......... i wish everyone went by the same dyno for hp figures......

 

If the rpm isn't calculated right on the mustang dyno, the hp numbers and the rpm will be off, just liek what you're describing. There's too many things that can affect the mustang dyno numbers, i'd trust the dynojet numbers more.