Lost Impeller Chart..

[apollo18]

I found a chart on a web page (but lost it) that tells you how fast you will go roughly in a jet boat (weight of boat and other things play a factor). It listed horse power + impeller size + rpm = MPH. If anyone has this info can you please post it? thanks.

[kubelwagonman]

just type in berkelt jet pumps in search engine and itrll link yu somewhere to it

[El Prosecutor]

I found a chart on a web page (but lost it) that tells you how fast you will go roughly in a jet boat (weight of boat and other things play a factor). It listed horse power + impeller size + rpm = MPH. If anyone has this info can you please post it? thanks.

Here is a link to the "official" Berkeley impeller chart:
http://www.cpperformance.com/TechTips/impeller.htm
Can't say I'm good for nothin' now.

[El Prosecutor]

Here is Jerry Liddell's (LVJetboy) Jet Boat Performance Calculator, free download, that will actually calculate MPH for your setup:
liquidaddiction.net/pump.html
I think Jer is somewhat of a jetboat genius.

[sleekcrafter]

Here is a link to the "official" Berkeley impeller chart:
http://www.cpperformance.com/TechTips/impeller.htm
Can't say I'm good for nothin' now.

I think you will find the American Turbine chart a little more accurate.

IMPELLER SELECTION CHART

AT, TJ, SD-309, DOMINATOR,
BERKELEY, ENERGIZER KITS




H.P. 9.5 9.25 AA A B C
150 2900 3050 3200 3600 3800 4050
200 3200 3350 3500 4000 4200 4450
250 3450 3600 3700 4300 4500 4800
300 3800 3950 4050 4550 4800 5100
350 4050 4200 4300 4750 5100 5350
400 4250 4400 4500 5050 5300 5600
450 4450 4600 4700 5250 5500 5850
500 4650 4800 4950 5400 5700 6050
550 4800 4950 5100 5550 5850 N/A
*THESE RPM VALUES MAY VARY ACCORDING TO HOW YOUR BOAT ALLOWS THE PUMP TO LOAD
HORSE POWER REQUIREMENTS ARE AT THE PUMP SHAFT







AMERICAN TURBINE JET DRIVE IMPELLER SPECIFICATIONS
IMPELLER SIZE LARGE DIAMETER SMALL DIAMETER MACHINED ANGLE
9 1/2" 9-1/2" 8-1/4" 25 DEGREES
9 1/4" 9-1/4" 8-1/4" 20 DEGREES
AA 9-3/32" 7-13/16" 25 DEGREES
A 9" 7-1/4" 30 DEGREES
B 8-3/4" 6-3/4" 33-1/2 DEGREES
C 8-1/2" 6-1/2" 33-1/2 DEGREES

[waterslinger]

ok who has a link that works?

[sleekcrafter]

Here is MPD's tech info


http://home.pacbell.net/jmcclure/tech_info.html

[Wild Hair]

Here is another one

[Tom@JBP]

Not certain how legible this is as photo , but this is Duanes "extended HP" chart , very accurate and a very good tool as well Tom