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-   Formula (https://www.offshoreonly.com/forums/formula-36/)
-   -   Some data needed about 2002 Formula 271 Fastech? (https://www.offshoreonly.com/forums/formula/313211-some-data-needed-about-2002-formula-271-fastech.html)

racinfast002 07-21-2014 01:11 PM
Originally Posted by Pave (Post 4156347)
What is the "pump" or something that makes rather loud nouce when you have been driving and shut down the engine. It goes away when you put electrics off? You can hear it in the cabin also but I think it comes from the engine room.
Sounds like either the fuel pump or the fresh water system pump.

racinfast002 07-21-2014 01:12 PM
Originally Posted by Pave (Post 4156615)
Thanks..have to contact them. I think mine hardly stays on plane if I drive 3000rpm.
HAHA I concur. About 4k seems to be the sweet spot for cruising in mine (502)

Pave 07-21-2014 02:14 PM
Is ot normal that it stays on after stopping engine?

Pave 07-21-2014 02:15 PM
I think that 4000rpm could be pretty close with mine also. What kind on fuel consumptin you have then?

racinfast002 07-21-2014 02:54 PM
Originally Posted by Pave (Post 4157026)
Is ot normal that it stays on after stopping engine?
The fresh water pump yes, the fuel pump no. The breaker for the fresh water pump is under the rear seat. I run around with mine off most of the time unless I'm using it. The fresh water pump runs until a certain pressure is reached then shuts off. If it doesn't reach pressure it will run continously.

racinfast002 07-21-2014 02:55 PM
Originally Posted by Pave (Post 4157029)
I think that 4000rpm could be pretty close with mine also. What kind on fuel consumptin you have then?
No idea, but it consumes it.....a lot lol.

Panic Attack 07-21-2014 09:47 PM
If you put some water into the fresh water tank the noise will stop, as mentioned, it needs to built pressure. Remember to run the water, sink or transom shower, every now and then so it doesn't start to smell funky. Good luck. You will love the boat.

Pave 07-22-2014 07:08 AM
Originally Posted by Panic Attack (Post 4157406)
If you put some water into the fresh water tank the noise will stop, as mentioned, it needs to built pressure. Remember to run the water, sink or transom shower, every now and then so it doesn't start to smell funky. Good luck. You will love the boat.
Ok interesting. The pump has "never" been used since the boat has left US. The tank is full of some red stuff that I think is glykol. The shower has been deleted and there is 230v electric socket nowdays.

Pave 07-22-2014 07:11 AM
Originally Posted by racinfast002 (Post 4157061)
No idea, but it consumes it.....a lot lol.
I asked the charts from Formula yesterday and got test drove charts today.

2500rpm 1,76 mpg
2500rpm 1,36 mpg
3000rpm 0,91 mpg
3500rpm 2,72 mpg
4000rpm 2,48 mpg
4500rpm 2,19 mpg
5030rpm 1,86 mpg


So around 3800-4000 rpm should be best.

racinfast002 07-22-2014 07:33 AM
Originally Posted by Pave (Post 4157558)
I asked the charts from Formula yesterday and got test drove charts today.

2500rpm 1,76 mpg
2500rpm 1,36 mpg
3000rpm 0,91 mpg
3500rpm 2,72 mpg
4000rpm 2,48 mpg
4500rpm 2,19 mpg
5030rpm 1,86 mpg


So around 3800-4000 rpm should be best.
Cool info man! Thanks for sharing!


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