2nd start-up of fresh 493, with open X-pipe (video!).

[Ranman69SE]

This is right after cam break-in.  I've swapped the cast iron manifolds for the new TTI headers, and exhaust is open after the X-pipe.  I have a starter button mounted on the fender well (in case you are wondering who is hitting the starter!).   Hope it's not too boring!

http://youtu.be/aD9W6B3Hhjg

All is not well, though.  Since this video, I've installed the gas tank and routed new fuel lines, installed the wiring and am close to turn-key operation.  I've been chasing down a problem of zero fuel pressure and found that this new motor with zero miles on it, decided to eat the fuel pump push rod.  I am terrified at the possibility that some cam lobes may be affected as well (solid lifter Comp Cam, used their break-in oil at cam run-in and at second oil change).  More details at a later post.....

[General_01]

Sounds great!

Bummer about the fuel push rod.

[firefighter3931]

The motor sounds great Randy ! Is that the XS282S Comp in your 493 ?

Mancini carries a bronze tipped fuel pump pushrod. I'm guessing you have the MP pushrod in there now ?


Ron

[Ranman69SE]

Ron, the cam is a custom grind that you recommended.     Lobe specs #6057/6059 which equates to gross lift of .520 int., .541 ex., duration @ .050  244 int., 252 ex.,  and 112 degrees of lobe separation.  Not sure how close that comes to the XS282.   So far, I love it!  Not too cold blooded, great throttle response and just enough lope to make me want to forget about installing a stereo!

I won't say where I got the fuel pump push rod, but it was cheap and surely manufactured overseas.  I have the bronze tipped one on order.  Hope the bad rod didn't damage the lobe on the cam.

[440]

Is that an off the shelf X pipe? Rarely have I seen one that crosses at 90*

[firefighter3931]

Ron, the cam is a custom grind that you recommended.     Lobe specs #6057/6059 which equates to gross lift of .520 int., .541 ex., duration @ .050  244 int., 252 ex.,  and 112 degrees of lobe separation.  Not sure how close that comes to the XS282.   So far, I love it!  Not too cold blooded, great throttle response and just enough lope to make me want to forget about installing a stereo!

I won't say where I got the fuel pump push rod, but it was cheap and surely manufactured overseas.  I have the bronze tipped one on order.  Hope the bad rod didn't damage the lobe on the cam.

Hi Randy, that is basicly the XS282S with a slightly wider LSA....the shelf cam comes with a 110lsa and yours has a 112* lobe center. It will idle nice...especially with 493 ci. Glad to hear you like it !  

I'd drain the oil and strain it through a paper towel or coffee filter to check for metal. Get a new oil filter on it and cut open the old one to check for metal particles. I doubt you did any damage to the fuel pump lobe on the cam because it went away so fast. You need a better "Source"  for those critical hard parts.  

I'll recommend Brad Penn oil....it has the anti-wear additive package included so there's no need for additional anti-wear products.  

Let us know how it works out and what you find  


Ron

[Ranman69SE]

Thanks Ron, great advice as always!

440, it is a full TTI exhaust.  Not quite 90 degrees, but close.