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-   -   80 MPH in a 292 Fastech with just 500 HP (https://www.offshoreonly.com/forums/formula/252650-80-mph-292-fastech-just-500-hp.html)

pokerrunboats 05-02-2011 12:46 PM

80 MPH in a 292 Fastech with just 500 HP
 
292 Fastech

no cabin

just 5000 lbs

single 500 EFI

28 LH lab finished Bravo 1 @ 5900 RPM
(modified rev limiter)
80 MPG GPS

http://www.youtube.com/watch?v=No-KwO56Ai8

314joey 05-02-2011 02:29 PM

That's moving for a single eng 29'er, don't think you could do that here at LOTO, the bath tub on the weekends would chew you up, nice ride though.

Monaco20 05-02-2011 02:36 PM


Originally Posted by pokerrunboats (Post 3392210)
292 Fastech

no cabin

just 5000 lbs

single 500 EFI

28 LH lab finished Bravo 1 @ 5900 RPM
(modified rev limiter)
80 MPG GPS

http://www.youtube.com/watch?v=No-KwO56Ai8

Thats pretty good

Should be able to compete with most brands out there, even
the 29 (26) Fountain

Keep up the good work with Formula in Europe

ciao

HTRDLNCN 05-02-2011 03:18 PM

Seems like your prop is slipping quite a bit. 5900rpm with a 28 should put you in the upper80s


Have you tried different props?

Baja226sport 05-02-2011 03:41 PM

Not sure if that video has me convinced....

chewymalone 05-02-2011 03:49 PM

No Way IMO

4mulafastech 05-02-2011 06:46 PM

I think it's possible.

Mine weighs in around 7500 lbs and with twin 320HP it hits 70-71 mph. Knock off 2500 lbs and an extra outdrive, 80 mph with 500HP should be doable. At the rpm they are running it is maybe a little more than 500HP.

DollaBill 05-02-2011 06:53 PM

500 efi stickers. Prob need closer to 600 hp and no fuel etc.

Back4More 05-02-2011 08:14 PM


Originally Posted by Baja226sport (Post 3392387)
Not sure if that video has me convinced....

Yeah, Didn't quite look like 80 to me either...

pokerrunboats 05-03-2011 12:10 AM

4 Attachment(s)
This boat is extreme lightwight

have a look at pictures and see both steps above water line compared to a stock 292


The X Dimension is pretty high and it takes a moment to get on plane but from there it goes like hell

You are welcome to take a ride - just jump on next plane overseas

I drove many performance boats , but nothing in similar size ever came close to the MPH output from just 470 HP at propshaft (500 EFI)

We have a 271 Fastech with a 525 EFI here
This one is doing 70 MPH all day and 72 in perfect condition

Its also using the same prop - 28 LH lab finished maximus

but its not exceeding 5300 RPM

The video ride was shot at sea level in the South Netherlands

pokerrunboats 05-03-2011 12:17 AM

5 Attachment(s)
The "Cabin"

The boat gained 500 RPM by removing the spacer , that the previous ownner used for what reason ever

HTRDLNCN 05-03-2011 09:49 AM

I am not doubting you run 80 , I was just saying your rpm is way too high, your running over 20% slip ..
Get that slip down and you may run even faster!

DareDevil 05-03-2011 10:10 AM


Originally Posted by HTRDLNCN (Post 3393157)
I am not doubting you run 80 , I was just saying your rpm is way too high, your running over 20% slip ..
Get that slip down and you may run even faster!

THE SPACER WILL TAKE IT DOWN BY ATLEAST 5% IF NOT EVEN MORE !

I guess thats why the spacer was in there .

GRH 05-03-2011 10:28 AM


Originally Posted by chewymalone (Post 3392391)
No Way IMO

+1

4mulafastech 05-03-2011 11:45 AM

1 Attachment(s)
:drink:I still think it is possible. pokerrunboats, how about some gps shots while running?

Also, back in the day didn't the single engine 292 just like this win an offshore championship for the year in its class? Can't remember the year, but remember reading about it somewhere.

cuposterchild 05-03-2011 12:49 PM

Might be possible the F-class formula boats are fast. These F-1 boats are not layed up production 292's so we aren't just subtracting cabin/rigging weight...it is much like the 382s(kevlar hulls) which I am pretty sure were hovering around 90 with 500s and 82mph out of a set of 496ho's! Plus all the factory racing boats (both 292's and 382) all have way different CG's and dash positions from production boats. See below on information on the 382 f-2 for comparison.

"For a brief moment it looked like F2 was going 496HO in 2005, so the dealer suggested this package. I never planned to race the boat and went ahead with the 496HO/XZ package. The result was outstanding and affordable for pleasure use (80+MPH on black Mercury power). With the former 470hp package the same boat will run 84+MPH and with 525s (or Whipples on the 496HOs) it will run 94+MPH. My only problem is that I didn't have time to use the boat (30 hours in four months) due to my business travel schedule... reluctantly I put it up for sale and it went quickly"

4mulafastech 05-03-2011 04:58 PM

Just an observation, but in the video it sounds like it is not opened up until the 13 second mark, so likely not topped out at 80 mph going by the camera.

Need more fly-by video!
:boat:

DareDevil 05-03-2011 05:29 PM

This is an original F1 boat and it runs 80+ with a HP 500 ..i am 100% sure !


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