How do you make an 815 CI engine ?

[Rick Parker]

They are more sensative to the atmospheric and barometric conditions.

The TAD and Nitro Funny Cars run on the edge of hydraulic lock from what I've read (?). And only spin about 900 RPM's for the 1/4 mile.

[Silverback51]

Originally Posted by Rick Parker

They are more sensative to the atmospheric and barometric conditions.

The TAD and Nitro Funny Cars run on the edge of hydraulic lock from what I've read (?). And only spin about 900 RPM's for the 1/4 mile.

If I remember right they have rev limiters set a 8000 RPM's. Using the second round times from Las Vegas last night of 3.781 for TF and 4.062 for FC (Go John Force), that equates to 504 revolutions for TF and 542 for FC.

Of course that does not take into account any wheel spin.

[Great Asp]

Originally Posted by Silverback51

If I remember right they have rev limiters set a 8000 RPM's. Using the second round times from Las Vegas last night of 3.781 for TF and 4.062 for FC (Go John Force), that equates to 504 revolutions for TF and 542 for FC.

Of course that does not take into account any wheel spin.

Maybe a dumb question, but can you count on a rev limiter with that much mass?

E

[CHANMADD]

How do you make an 815 CI engine ?

Throw a lot of money at a lot of parts!!!
John

[ffindling]

Both the NHRA and IHRA limit bore spacing on these engines to 5" or less.
This places a limit on bore size so the large displacement has to be accomplished by using very long stroke cranks in a raised deck block.
The result being that these monster motors are very undersquare. Since
longevity is not a factor in building drag race motors, these motors can be
made to work. It would be rather difficult to build a streetable motor in
this configuration that would last a reasonable amount of time before a rebuild was
necessary. Since the bore size limitation also restricts valve size as well,
you have to put as much camshaft timing into them as is possible to make
them aspirate well. Building such an engine with a milder streetable camshaft
would probably make the additional displacement fairly useless.

....Fred

[MChat]

Alot easier for a street applicaton to just use a turbo or supercharger.

If I can push 650whp out of a 2.4L (148ci) and still have a useable powerband, and be reasonably reliable, then imagine how much power could be had from a much larger V-8.


Actually don't imagine it, see it (347ci LS1-based engine w/ a T76 Turbo at "medium" boost in a ~3300lb car):
Inside view: http://gonicd.com/videos/9_47_inside.wmv
Outside view: http://videos.streetfire.net/video/N...7-c7ef813f005d

[Mdman352]

Contact these people : http://candcmotorsports.com/

Carroll Carter has been building BIG Ford's for many years.