SoCal Jet Boats

Tech Talk => Jet Pumps => Topic started by: eliminatethis on March 05, 2011, 08:38:20 AM

Title: bronze impeller
Post by: eliminatethis on March 05, 2011, 08:38:20 AM: I have a old 12JF-A pump in my 1979 SST. Becouse of the age of this old girl, I am not sure what is in it and there seem to be no stamping # on the imp. here are some pics of the old girls impeller any ideas on what she is?
Title: Re: bronze impeller
Post by: eliminatethis on March 05, 2011, 08:44:20 AM: Quote from: eliminatethis on March 05, 2011, 08:38:20 AM
I have a old 12JF-A pump in my 1979 SST. Becouse of the age of this old girl, I am not sure what is in it and there seem to be no stamping # on the imp. here are some pics of the old girls impeller any ideas on what she is?
Title: Re: bronze impeller
Post by: eliminatethis on March 05, 2011, 08:45:05 AM: more
Title: Re: bronze impeller
Post by: eliminatethis on March 05, 2011, 08:48:02 AM: last one
Title: Re: bronze impeller
Post by: jet boat performance on March 05, 2011, 11:13:14 PM: Just a Wild guess but that Impeller looks to be a B or even a BC or smaller yet , what engine , what power and what application? Tom
Title: Re: bronze impeller
Post by: GT Jets on March 05, 2011, 11:38:22 PM: Quote from: jet boat performance on March 05, 2011, 11:13:14 PM
Just a Wild guess but that Impeller looks to be a B or even a BC or smaller yet , what engine , what power and what application? Tom

X2, she's whittled down pretty far. :-\

Good looking piece though :thumbup:

GT
Title: Re: bronze impeller
Post by: eliminatethis on March 07, 2011, 07:03:28 AM: Quote from: GT Jets on March 05, 2011, 11:38:22 PM

X2, she's whittled down pretty far. :-\

Good looking piece though :thumbup:

GT
she is a gen 6 454 +.030, 9.9to 0ne, factory rec. port heads with a custom cam buy marine kinetics with a duel firing order swap. induction is a single domonator tunnel ram reworked buy nickerson perf. 14 quart pan and dry headers
Title: Re: bronze impeller
Post by: GT Jets on March 07, 2011, 08:09:11 AM: Quote from: eliminatethis on March 07, 2011, 07:03:28 AM
she is a gen 6 454 +.030, 9.9to 0ne, factory rec. port heads with a custom cam buy marine kinetics with a duel firing order swap. induction is a single domonator tunnel ram reworked buy nickerson perf. 14 quart pan and dry headers

Bet she turned well over 5200 RPM :sly:

GT
Title: Re: bronze impeller
Post by: eliminatethis on March 07, 2011, 10:21:24 AM: Quote from: GT Jets on March 07, 2011, 08:09:11 AM
Bet she turned well over 5200 RPM :sly:

GT
the person I bought it off had a 871 blown 454 in it and he said on a full throttle hole shot it would spool up into the six'sand the wear ring clearences are at .050 thou. plus . the pump had what looked like a homade loader and alot of bad blending in the intake area.
Title: Re: bronze impeller
Post by: eliminatethis on March 08, 2011, 06:24:19 AM: Quote from: GT Jets on March 05, 2011, 11:38:22 PM

X2, she's whittled down pretty far. :-\

Good looking piece though :thumbup:

GT
just sent her off to get checked and if it will work for my application and if so have it blue printed. Figure now is the time to find out what RPM she will allow the engine to turn ( given the right horse ) power BEFORE MarineKinetics builds the cam, Bob can change the max HP/RPM in the cam to match the pump.