That dude is super smooth. Anyone who has ever auto X'd knows how hard it is to go fast and have smooth & accurate transitions. For all the power that baby really hooks up. Fun to watch and hear.
Actually if will be 54 years old in November, I bought it in November of 1965. They are so short, narrow and light it takes a very skilled driver with quick hands to extract the performance that is within. This is a very extreme example but it was a handful even brand new with about 1/2 the HP it has now.It is hard to believe this performance is from a 50 year old car. I am still amazed every time I drive mine.
Latest outing with CSX3170 last weekend, over 9200 several places. The red "heads up" reflection on the windshield indicates the traction control is pulling timing, as much as 20 degrees. We have a way to go to hook this thing up on concrete.
Enjoyed this post from beginning to end. ThanksFascinating article on FE engine designs & improvements:
Thanks Tony, I just saw this post.Congrats to Cobra498 (aka Cobra #3170 in other places)
Scott Fraser doubled up on his 2018 AutoCrosser of the Year title by conquering a field of 32 top-tier racers in this year’s Duel in the Desert and capturing the Goodguys 2019 FAST AutoCrosser of the Year crown. The Duel in the Desert took place Saturday in Scottsdale, Arizona, during the season-endwww.fuelcurve.com
What an engineering accomplishment to transform a Cobra into this.
It is described within this article but it is an FE based aluminum engine that makes 820 HP @ 8200 and 562 lb/ft@7000 red line 9400 rpm, it is 440 cid.
We log most critical parameters with two separate loggers one for the car and the other for the engine. Scott noticed that the abs did not always work and we could not find any error codes set in the Bosch system.
We then looked at video and found that the ABS Mil light flickered several times during a run.
We overlaid RPM vs time and found that it occurred at maximum RPM. We then looked at system voltage and
saw some spikes above 16 volts. The Bosch ABS system has a voltage range of 10 - 16 volts. I contacted Bosch and they said there was a soft reset at 16 volts that shuts the system down for 2 seconds then restarts it. The Bosch system has 3 input circuits: a 40 amp pump circuit, a 25 amp valve circuit and a 10 amp electronic circuit.
I am going to feed the electronics with two silicon diodes in series to drop the voltage about 1.6 volts. That should keep me well within the operating range since alternator voltage never goes under 14.2 volts with the engine running. Looking at their circuit diagram it should work, if not I can get 75 amp high current diodes and drop the voltage to the whole unit.
BMF I don't know what stroke crank you have but if it is over 3.75" keep an eye on piston speed. I never ran my
4.25 stroker over 8200 because of that. If I had your head flow I would not have to turn this thing so hard. If you do plan on running to 9000 on a regular basis you should probably have Jon Kaase build your engine so it will live. He and Ed Pink are the only ones I would trust with a Cammer build.