View Single Post
  #7 (permalink)  
Old 09-03-2009, 05:08 PM
Argess Argess is online now
CC Member
Visit my Photo Gallery

 
Join Date: Jul 2009
Cobra Make, Engine:
Posts: 414
Not Ranked     
Default

Not a big cam...a Crane Fireball 290...about 227 @ 0.05 I think.

no carb linkage binding, and it is progressive

fuel pressure is 7 psi

vacuum secondaries are connected carb to carb

timing 20 intial, 38 max. Problems are worse the lower the intial advance

@28 intial, I get detonation...I think...you can feel the engine fighting a bit.



Anyway, dont' forget, none of the problems are consistent, although they do repeat and generally fall into 3 categories:

1/ Works fine more or less. A bit more ignition tweaking, etc as it is close to working fine.

2/ power comes on in stages under acceleration, such as giving it 1/3 to 1/2 throttle. This is the most common scenario. Probably can be cured by tuning, yet sometimes it's as above (fine)....but may go away if #3 is cured

3/ completely loses its ability to get out of its own way when accelerating as above. Full 8 cylinders gone screwy. Not just 1 cylinder. Let off the gas, and try again and it seems fine. This one does seem to rear its ugly head after car is driven for 1/2 hour or more.

Arghhh...........
Reply With Quote