Magnacharger Shift Points
Thread Starter
Burning Brakes
Joined: Aug 2003
Posts: 1,070
Likes: 9
From: MARRIOTTSVILLE MD
Originally Posted by Chrispy
If you are revving above 6500rpm I hope you have a good set of rod bolts in the car 
would be good for a extra couple of hundred rpm.
Last edited by INTHERED; May 17, 2005 at 05:51 PM. Reason: english
Pro
Joined: Apr 2002
Posts: 658
Likes: 4
From: North York Ontario
Originally Posted by INTHERED
Since Iam only putting out 440 hp I would think that stock rods
would be good for a extra couple of hundred rpm.
would be good for a extra couple of hundred rpm.
For the 2-3 shift, the gearing perdicts a 2400RPM swing but with shift time and slip it is effectively only 2000rpm. the intersection of this 2000rpm segment on the dyno would be ideal, but getting the transmission to behave like that is another problem. My car is comanded to shift at 6200rpm and hopefully completing before 6400, limited to 6600 which I feel is being aggressive. I have similar mods as you.
As always, I could be wrong.
Thread Starter
Burning Brakes
Joined: Aug 2003
Posts: 1,070
Likes: 9
From: MARRIOTTSVILLE MD
Originally Posted by auctiondepot
The design stress within an engine is more a function of centrifugal forces than combustions pressure. (head gaskets aside).For the 2-3 shift, the gearing perdicts a 2400RPM swing but with shift time and slip it is effectively only 2000rpm. the intersection of this 2000rpm segment on the dyno would be ideal, but getting the transmission to behave like that is another problem. My car is comanded to shift at 6200rpm and hopefully completing before 6400, limited to 6600 which I feel is being aggressive. I have similar mods as you.As always, I could be wrong.
having it shift at 6400. The shift point programming that I have done
using my Predator seemed to indicate the opposite. If I programmed it
to shift at 6200 it seemed to shift at 6100 or less. I have seen quite a
number of dyno runs from various tuners and they do not seem to have
a problem with their conscience running stock bottom ends right up to
the fuel cutout which is 6600. I have heard that the C5 powder rod is
the strongest rod that chevy ever put into a production engine . Iam
not interested in exploding my motor but I do not see any posts from
people who have broken C5 rods.
