700 Hp on NA pump gas

justinp61 said

The disclaimer **A dyno is just another tool**.

On pump 93 my N/A 434 dynoed 703 hp @ 5750 rpm's and 624 ft lbs @ 5000 rpm's on Dale Meers dyno at Meers Racing Engines in Buffalo KY. I'm not going to speculate if it's a generous or stingy dyno. All I wanted to do was break in and tune my engine in on it.

It's gone 108.59 mph in the 1/8 in my 3350# 69 Dart.

R1 block, 4.090" bore
BPE 4.125" Crank
Comp Star 6.200" rods
Custom Diamond pistons, 11.2-1 compression
T&D 1.7" rockers
Comp solid roller, 263/271 @ .050", .433/.437 lobe lift, .711/.719" @ the retainer after lash
Ported Indy 360-1 and ported Indy intake
Dynoed with a Bigs 950HP

Click to expand...

My blue car ran 109-110 at that same weight, and right at 135 in the 1/4. It was geared for the 1/4,rarely race 1/8 mile around here.Ryan and other guys said it made right about 640. That was the general opinion of a long thread on the other board few years ago. Time has proven they were right.
The guy who bought the car upgraded the motor quite a bit after he bought the car. It now runs 113-114 in the 1/8 and 140 in the in the 1/4. That made 708 at Best Machine on the dyno.
And the car is still on 002/003 leafs and CE 3 way shocks all around, so nothing trick on that front.
Runs good, but it aint making 700 running 108 in the 1/8. Probably 625-635 area. like you said, Dyno is a tuning tool, and helps with convertor selection.