Herman's Factory Five Racing 65' Roadster Build Site

February 2007

2/21/07 - It's been a long month of .... nothing really. I've been driving the car around for the past 3 weeks and it still get's my heart going everytime I step into the cockpit.

So to recap what I've failed to report earlier:

- Installed the 2nd wiper! Still not functional though. That's on the 'to-do' list.
- Created new templates for three of the four aluminum sheets to surround the front of the car
- Dyno'd the car for baseline numbers

.I currently don't have a picture of the wipers but here's the templates I made for the aluminum:

The dyno was today's real entry. Here's how I posted this on FFCobra.com:

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I just got back to from Apex. This took quite a bit of time to finish but it's done.

The first two pulls were pretty good:

#1: Max Power = 354.08, Max. Torque = 370.82
#2: Max Power = 355.97, Max. Torque = 385.25

The next two are odd balls. We could not get a good/consistent singal from the #1 plug:

#3: Max Power = 289.97, Max. Torque = 359.53
#4: Max Power = 297.19, Max. Torque = 364.38

The last pull was in essence, the 3rd paid pull:

#5 Max Power = 351.86, Max. Torque = 378.38

If you average out #1, 2 & 5 I come up with an average of:

[b]HP: 353.87, Torque: 378.15 ft-lbs.[/b]

For just torque across all 5 runs, I get:
Torque: 371.672 ft-lbs.

If we toss out the highest and lowest torque readings, I get: 371.19 ft-lbs.

The printouts are terrible. This is a Dnynojet butthe Winpep7 software didn't give a graph I really preferred. I'll scan and post it later.

The colunmar numbers were missing on all runs but the 2nd and it was even missing RPM readings from 4500-6000 (my rev limit).

In a nutshell, I can say the torque curve was near flat after 3,000RPM through 5,2000, with peak appearing to be around 5200 before tapering down. It's a nice shallow arc. HP was a very linear climb to about 5400RPM.
A/F was averaging what appears to be about 13.4:1 (guessing based on what little info I got from the columns.)

Overall, this is what I was expecting at the wheels.

Using the figures from runs 1,2 and 5, I calculated both HP and torque with a 15% drive train loss and this yielded a flywheel figure of 416.3HP and 444.9 ft-lbs. of torque.

These numbers are strickly baseline and when Rod and company finally do the exhaust comparison, I can then guess on how this will affect my HP. I may even try small things such as a 1" phenolic spacer.

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And yes, I do have video; since they were too large for my normal Comcast account, I finally decided to try "YouTube" so here's the link to my dyno pulls:

(Dyno Pull #1) (Dyno Pull #2)