Yesterday, Jay Kjoller and I took the six to Chris Moore, Autobahn Extremist in Avon Lake, Ohio to have it dyno'd. Newly rebuilt 2.7. A data point for you should you find it helpful:

Disp: 2.687
Bore: 90 mm
Stroke: 70.4 mm
Comp Ratio: 10.8:1
1966 aluminum case
JE Pistons
DC30/Mod. Solex (Dougherty) cams
Ports: int 35 mm, exh 38mm
Carbs: PMO 40
venturies 40 34
main jets 135
A/C's 185
idle jets 50
idle airs 130
E-tubes F1H
DFI twin spark set at: Init 2°, 3000 25°, 8000 5°

Chris measured 183HP at the wheels, so, assuming 15% loss, 210HP at engine

car runs great. a good compromise for a mostly street car. I am happy.

Chris has a wealth of Porsche knowledge, experience and skill. Great shop! Like Jay, a perfectionist. I would not hesitate to take a Porsche there.

Click to view attachment

Click to view attachment

On a Mustang dyno that's pretty respectable, they normally read about 5-7% less than a Dynojet or Dyna-pack.

Nice! Any reason that you stopped at 6 grand, looks like you were still making power at the cutoff.

Those aluminum cases make a great base for a hot rod motor.

You said "mostly street"....if you track it you may want to jet it richer based on the afr curve shown...

Looks more like the acceleration tip in at 2k (most dyno operators hold steady at 2k then floor it when they hit the green button) runs a bit lean then plays catch up but then corrects as it comes up on the the main jets as he ends up in the mid 12's / low 13's for most of the run.

Can you increase the accelerator pump output on a solex?

What is your base timing and your max advance?

180+ whp in a 914 must be a blast, good work!!!

Nice flat torque curve.

..............and you didn't call me. Would have loved to be a part of that excercise. I live just west of there. You are correct that Chris runs a great shop. Met an talked with him at a couple of PCA events. Perfectionist for sure.

Great numbers for your specs.

dp

What fuel were you using for the dyno run?

Thanks