460 RHS engine build.. dyno tomorrow.

[Steve1968LS2]

Originally Posted by GregWeld

652 TQ and 695 HP (but HP number depends on what you're willing to rev it to).

No matter what it makes -- it is killer (on paper) and I hope it works even better than your best laid plans!

To a point.. if the cam/valvetrain is "done" by 6200 then it won't matter how high we spin it (which is why a solid would have made more..)

I will just be happy if it runs nice.. I already have plenty of power, but it's fun to speculate.

[GregWeld]

True enough Steve. When I just dyno'd the 406.. we discussed what RPM to go with. My thought was "my tranny shifts about 6000 rpms... so why go beyond that". So that's what we tested to. In fact, when we were discussing the build - we talked about a rev kit etc and I said - nah - I'm not revving it to the moon so why bother. I wanted TORQUE the rest will take care of itself.

[Vegas69]

Not to hijack Steve's thread Greg but I have that answer. It's nice to be able to rev past redline in racing. I used to hit the rev limiter constantly with my old engine and 6k redline. My new one peaks at 6200 but I rev it to 6800 safely. I rarely hit the redline.

[GregWeld]

Todd --

You have SOLID lifters.... don't try that with hydraulic rollers...

[tones2SS]

I'll guess 675 HP and 656 TQ.
Killer engine Steve.

[Steve1968LS2]

Drum roll....

Now I forgot my small camera at the dyno so no video yet. I also shot the run on the screen so you can see all the numbers as well as the vid in the dyno room. I will also have the list at various RPM along with all the BMEP numbers.

So.. the best pull was...

719.5 hp
662 tq

Corrected numbers, pump gas, 28 degrees of timing.

On this pull we lugged the dyno down low, it was a bit rich but we made over 400 lb-ft at 2.500.

Peak hp was at 6.200 and the engine easily pulled to 6,700 with no float. Pretty sure it could pull to 7,000.

Good BMEP numbers, which show the heads were really working well, especially in the middle range.

Also, this was a "hero" pull.. we were nailing down consistent 705/708 pulls and let the engine set for 5-10 minutes and then made this pull.

Should be enough.. lol

[GregWeld]

Eeeeeeeeeehhhhhhhhhhhaaaaaaaaaaaaaa

[camcojb]

gonna be a handful....................

[Vegas69]

Holy shiat, those are some big numbers! Looks a little peakier than the 454.

[67ragtp]

WOW! Who needs boost when you can have that, killer numbers, better buy more tires.

Nice job Steve

Rich