Send me an email to my mailbox and I'll send you the build data.

This particular combo was put together and massaged over the years by an old drag race guy named Dick Gazan. Dick passed away about 5 months ago and I'd hate to see the knowledge get lost - its all pretty basic good parts put together with care and tuned by competent guys.

Not sure if its Mesa or the other guy but your boys are dragging this thing out big time- it didnt take this long to catch Dillinger.


Uncle Dave

Sent email,

You are right about the delay, Mesa is just waiting for builder to drop off engines, crazy !! Spoke to him today,engines are going there tomorrow.
For now I am enjoying the sr1

Would seem to me the builder would wish to get paid- unless he already has been which would explain the snails pace.

Your inbox should have my build data.

Life's better on a boat- enjoy your new ride!

Uncle Dave

Diego,
Attached is a dyno sheet from a 400 SBC package we developed. This engine was part of a set of twins for a Magnum Starfire. As a result we tailored the output with a bias toward the mid and upper middle area of the curve. hence the TQ (522.4 @ 4600) outpacing the HP (509.3@5600). This same combination, (in 383 or 400 CID displacements) with an intake manifold change, .5 point increase in CR, and a slightly revised cam profile make 515 hp/545hp respectively @ 5900 rpm.
4.125” bore
3.750” stroke
9.3:1 CR
AFR 195 CNC
Dart SHP Block
Pro Systems carb
Custom H/R W /Morel lifters

Bob

Looks like a pretty nice package- thanks for sharing it.

I notice the dyno run starts at 3500 vs 3K.

Hows does this combination idle?

UD

Bob Madara , Thanks for sharing this info with us , my 383's are in hands of Laz @ Mesa Balancing now , we'll see what the outcome is, any predictions? I know the cam you designed was not too agressive , we were looking for good torque and longevity.

Thanks again Bob

Diego,
I am very reserved in my HP projections for this package. During my conversations with the builder he was adamant there was no interest in any performance increases over a stock OEM build. His component selection was geared toward that end. Warranty was his primary consideration and initially specified max WOT RPM was not to exceed 4000 RPM. There were also a number of conversations severely restricting cam specs (and other mechanical parameters) in order to honor his warranty on the engine. Given the limitations of the induction tract I would expect 1 horsepower per CI to be a very successful outcome with this package. I am confident the adjustments Laz has made to the delivered package (in various areas of the build) will significantly enhance both performance and areas of questionable component reliability.

Bob

Dave,
The engine is very tractable. The flow potential provided by induction package required less duration that some would estimate given the 5600 RPM max power requirement. The output was achieved by accomplishing the necessary valve path without excessive duration.
Bob

This comes out almost where my 427ci small blocks are, same power but 700 rpm higher in the band then I wanted my engines to spin due to bravo's and temperatures.

Yikes. The builder wanted 4k max rpm...that's not the best news of the day...

Diego, hope you were aware of this...