MAx RPM

« **on:** May 09, 2008, 01:22:06 AM »

I have a mild 454 with a torker 2 manifold and the most I can get is 4000, maybe 4100 RPM, does this sound legit or do you think there could be other issues? Last boat would run 5100 RPM, different pump and a performer intake- thoughts???

« **Reply #1 on:** May 09, 2008, 04:43:08 AM »

Need more info on the pump especially the impeller cut.
T.J.

« **Reply #2 on:** May 09, 2008, 07:11:36 AM »

With the info provided, unless it's got a BIG (AAA, ?) impellor you've got something going on there.

« **Reply #3 on:** May 09, 2008, 09:26:30 AM »

I have not been into the pump yet, is it stamped on it to were I can look down the nozzle up back up the intake to see it??? It is and early Dominator 12-s, the guy I bought the boat from had records of motor, trailer, etc, but nothing about the pump-

« **Reply #4 on:** May 09, 2008, 09:57:46 AM »

You'll need to pull the impeller to find out the size. Maybe there is another way -but I don't think so. Unless your tach is off or your engine is anemic -I'd think w/an A or AA you should see closer to 4500-5k. To give you an idea, I have a stock 454 (~400hp) and it will spin an A to 4800-4900 on a tight pump.

« **Reply #5 on:** May 12, 2008, 10:38:17 PM »

From what I remember the Torker 2 manifold was a piece of crap except for really low rpm (great for a 1 ton truck but not a boat).

If your not ready to go into the pump, up date the intake to start. Try a Performer or a better single plane manifold.

« **Reply #6 on:** May 13, 2008, 05:23:06 AM »

If you are interested i have a Edelbrock performer RPM good from 1500 -6500 rpm's It has oval ports.

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