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SB 07-01-2022 12:07 PM

Unrelated questions:
what prop and size you running ? Grar ratio ? I forget size if your boat ? Current speed at wot ?

Zole 07-01-2022 12:10 PM


Originally Posted by F-2 Speedy (Post 4837073)
yes thats good, God has nothing to do with it.......:funnypost:

sory no hard filings i hope yust lack of gramar:nicethread:

Zole 07-01-2022 12:12 PM


Originally Posted by SB (Post 4837078)
Unrelated questions:
what prop and size you running ? Grar ratio ? I forget size if your boat ? Current speed at wot ?

prop size 24...bravo 1 stok...cris craft boat...speedometer not working..:whistle:

F-2 Speedy 07-01-2022 01:19 PM

put a gps mph app on your phone.or kph

Zole 07-01-2022 01:28 PM


Originally Posted by F-2 Speedy (Post 4837086)
put a gps mph app on your phone.or kph

yeah...i do that but today i had fuel pump problems so i could not do that...i've posted that this morning maybe nobody saw that...runing aut of fuel at wot...

F-2 Speedy 07-01-2022 02:17 PM


Originally Posted by Zole (Post 4837039)
i run into some problems today....i started loosing throtle after a few minutes of wot...i guess my fuel pump volume is small..is there a mehanical pump with larger wolume of fuel...this is mine
https://cimg5.ibsrv.net/gimg/www.off...5dba2d5f11.jpg

Im not sure on the HP pump maybe SB knows

Zole 07-02-2022 12:16 PM


Originally Posted by SB (Post 4837078)
Unrelated questions:
what prop and size you running ? Grar ratio ? I forget size if your boat ? Current speed at wot ?

when and if you have the time can you shine a light at my fuel pump problem....thank you in advance

mcollinstn 07-02-2022 06:54 PM

If your fuel pressure remains above "6psi plus BOX PRESSURE" then you're NOT suffering a fuel supply problem.
At WOT (wide open throttle) box pressure and manifold pressure are very close, so you can use that as a reference.

Zole 07-03-2022 12:54 AM


Originally Posted by mcollinstn (Post 4837177)
If your fuel pressure remains above "6psi plus BOX PRESSURE" then you're NOT suffering a fuel supply problem.
At WOT (wide open throttle) box pressure and manifold pressure are very close, so you can use that as a reference.

good morning i yust got up.Ok i undersrand my pressure is ok but my volume i what im askung about..It is like this...I run wot for 1 minute and then the engine starts to lose rpm...I lover the trotle to around 2000 rpm wait for some time and then i can run wot again.Is it fuel pump volume small.

SB 07-03-2022 06:20 AM

Well….I guess you could be correct.

Floats set too low or needle and seats too small could do this also. Ie: keeping good pressure but not enough volume. One would think it would happen faster than a minute, but that’s just thinking. :)

Be careful running it the way you have (wot rpms falling after a bit) as this can cook things fast.


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