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Taza
 Post subject: Max RPM
PostPosted: Mon Aug 27, 2012 4:06 pm 
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Dolphin

Joined: Thu Jul 19, 2012 1:13 pm
Posts: 79
Location: Cheshire- England
I don't have the Engine owners manual,what is the maximum opperating RPM that my engine should do,
1997
Volvo Penta 5.7GLi

WOT it's running approx 5500

Prop is 14.5 x 19 3 blade Ali

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1997 Fourwinns 205 Sundowner
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97_245_sd
 Post subject: Re: Max RPM
PostPosted: Tue Aug 28, 2012 9:47 am 
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Joined: Tue Jun 16, 2009 4:17 pm
Posts: 521
Location: Metro Detroit/Holland MI
I had downloaded the engine specs from that model year on the Four Winns website some years ago. It says 4200-4600 rpm for all the 5.7L except 5.7LGSi ( which is 4600-5000 rpm).

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Terry
Current: 07 Crownline 255 CCR cuddy - 350 Mag MPI/B3 "Casi Cielo"

Previous:97 245 Sundowner 5.7GI/SX

Tow vehicle: 1986 GMC 2500 Camper Special 454/TH400
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ric
 Post subject: Re: Max RPM
PostPosted: Tue Aug 28, 2012 10:28 am 
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Location: Austin, TX
That's not a roller rocker motor, I wouldn't take it beyond 4800.

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2015 Yamaha FZR - 87mph - sold
2006 Yamaha GP1300R - sold
2003 Chaparral 215 SSI - sold
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NiagaraChillin
 Post subject: Re: Max RPM
PostPosted: Tue Aug 28, 2012 10:31 am 
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Location: Lower Niagara/Lake Ontario USA
ric wrote:
I wouldn't take it beyond 4800.


Agree...actually, I would keep it at 4500 (but thats just me).

5500rpm?! Yikes, thats redline for a stock 350.

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ric
 Post subject: Re: Max RPM
PostPosted: Tue Aug 28, 2012 10:45 am 
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Location: Austin, TX
NiagaraChillin wrote:
ric wrote:
I wouldn't take it beyond 4800.


Agree...actually, I would keep it at 4500 (but thats just me).

5500rpm?! Yikes, thats redline for a stock 350.


I wouldn't ride around at 4500 for longer then a few minutes lol

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1981 Columbia 8.7
2015 Yamaha FZR - 87mph - sold
2006 Yamaha GP1300R - sold
2003 Chaparral 215 SSI - sold
2009 Stingray 195CS - sold
2000 Four Winns H180 - sold
1976 O'day Daysailer II - sold
Rick's Four Winns H180 Mods/Upgrade Thread
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Taza
 Post subject: Re: Max RPM
PostPosted: Tue Aug 28, 2012 10:50 am 
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Dolphin

Joined: Thu Jul 19, 2012 1:13 pm
Posts: 79
Location: Cheshire- England
should i up the prop spec,at the moment its fitted with
14.5 x 19 3blade Ali ???

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1997 Fourwinns 205 Sundowner
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ric
 Post subject: Re: Max RPM
PostPosted: Tue Aug 28, 2012 10:59 am 
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Location: Austin, TX
Taza wrote:
should i up the prop spec,at the moment its fitted with
14.5 x 19 3blade Ali ???


Nothing wrong with a 21 pitch VP stainless prop

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1981 Columbia 8.7
2015 Yamaha FZR - 87mph - sold
2006 Yamaha GP1300R - sold
2003 Chaparral 215 SSI - sold
2009 Stingray 195CS - sold
2000 Four Winns H180 - sold
1976 O'day Daysailer II - sold
Rick's Four Winns H180 Mods/Upgrade Thread
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Borchik
 Post subject: Re: Max RPM
PostPosted: Tue Aug 28, 2012 11:51 am 
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Joined: Mon Aug 02, 2010 6:38 am
Posts: 311
Location: Baldwinsville, NY
I think your tach is wrong, highly doubt you have been running 5500 and keeping the motor together.

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Brian Borchik
The Winds of Cold Springs Harbor Marina
Baldwinsville, NY
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Borchik
 Post subject: Re: Max RPM
PostPosted: Tue Aug 28, 2012 11:58 am 
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Location: Baldwinsville, NY
And none of them have roller rockers Ric...I assume you mean roller cam/lifters...

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Brian Borchik
The Winds of Cold Springs Harbor Marina
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ric
 Post subject: Re: Max RPM
PostPosted: Tue Aug 28, 2012 12:10 pm 
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Location: Austin, TX
Borchik wrote:
And none of them have roller rockers Ric...I assume you mean roller cam/lifters...


Ya oops

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1981 Columbia 8.7
2015 Yamaha FZR - 87mph - sold
2006 Yamaha GP1300R - sold
2003 Chaparral 215 SSI - sold
2009 Stingray 195CS - sold
2000 Four Winns H180 - sold
1976 O'day Daysailer II - sold
Rick's Four Winns H180 Mods/Upgrade Thread
Top
 Profile  
 
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