Alright guys....its getting that time again.....the 385 getting the final tune (i hope).....mods are in sig....will be getting 3" exhaust after the tune.....either magnaflow or hooker......kinda leaning towards hooker though...anyways opinions? I am thinking around 370-385 rwhp and 400ftlbs torque? and et times of 12.2-11.9 depending on launch?

 

come on guys....ttt

 

I think 370-385 RWHP is a bit optimistic. Might hit your ET target, though, depending upon vehicle weight.

 

well on that i heard formulas were 3340ish....the ac has been taken out....rear seat.....spare tire and jack....so im guessing around im around 3240?

 

The weight you use should be as going down the track - with driver and fuel. My Camaro weighed 3560 in that config last week according to the track scale - no GFX, w/AC, 3/4 tank fuel, trunk emptied.

What combo produced the 311 RWHP?

FWIW, I haven't had it on a dyno, but various calculator formulas puts the '57 at around 335 RWHP sea level based on 1/4 mile performance.

 

The combo I have now produced that. But I kept the stock injectors for some reason (think I had a brain fart) but that is getting taken care of this weekend. I wish I had that dyno sheet handy but will be posting up a new one after the dyno tune.

 

The cam seems pretty small for that kind of power. Thats about what I made on a Mustang Dyno.

 

In your original post you said the combo you are going to is in your sig. Saying the combo you have now is what produced the dyno number doesn't tell us what the combo you have now is.

Or, are the injectors the only thing changing from what you have now to the combo in your sig?

 

the only thing changing from what i have right now will be 30lbs injectors and 255 fuel pump.....

 

well i did a bit of research and found out a member by the name of ricktpi had this exact combo i have right now and went 12.00

 

I kinda doubt you're going to get 60-75 HP from an injector change.

 

ah well thinkin maybe 30? is more realistic?

 

Probably, unless you're currently very under-injected or horribly mis-tuned.

 

its stock fuel injectors right now on the 385.....it goes lean at 4500 rpms..... bc not enough fuel

 

Could happen, then, because HP > torque above 5252 RPMs.

(I just get jealous when SB's are putting more power to the ground than my Baby Rat. . . )

 

only time will tell! I'm leaving here in about 10 minutes for the drive to the dyno...will post new dyno sheet...