Spent the day driving 6 hours each way to pick up the 289 FIA engine from Darryl Fitzgerald and witness a couple fo dyno runs. Darryl had called me yesterday to let me know that they had been tuning the engine on the dyno and that the results were pretty good. He said that the previous engine was more than likely operating in about the 350 hp range based upon the build. He said that they were getting 370 HP and 330 ft lbs of torque on my engine with the Webers, which he thought was pretty good considering it has iron heads, a stock crank and stock stroke. I was hoping for a little more, but that is better than it was. So I told myself that it was making consistent HP as compared to the cobras racing back in the 60's and went to go get my engine.
Darryl and I went over to where the dyno shop was and we got ready for the first pull. The dyno operator ran the engine up to 3500 rpms and then shut it down. He said that the engine was not making power. We became a little concerned and removed the valve covers to check the valve lash. all was in order, there did not seem to be any leaks. They then tested the throttle lever on the dyno and it was barely moving the throttle. The throttle lever for the dyno had come loose. it was tightened and the next run went smoothly. Everyone was happy, and I looked over at the dyno and noticed that with the full use of the Webers the engine produced 362 ftlbs of torque and 424 HP.
We did a second run and got the same results. A nice flat torque curve from 4500-6500 rpms. I am a happy camper! It will be fun getting used to all that power. Love those Webers.
Here are links to the last to pulls on the dyno, crank up the volume and enjoy. The video was taken from outside the dyno room, so it is a little blurred by the plexiglass.
I took a picture of the dyno sheet.
Https://youtu.be/Wgm3LMrQvPM
Https://youtu.be/rHo7ARK3_Xw
Jim