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-   Archive through October 28, 2007 (http://www.wakeworld.com/forum/forumdisplay.php?f=517108)
-   -   Doea anyone have torque specs on Indmar engines (http://www.wakeworld.com/forum/showthread.php?t=512437)

waterfreak 10-18-2007 1:49 PM

I was wondering if anyone had any torque specs or anything else related to HP charts on any of the Indmar engines. It seems it is kept very secret and I am curious what real difference there is between an Indmar 310 and 350 engine both 5.7 litre V8's. Any info out there?? <BR> <BR>edit; wouldn't let me fix spelling mistake in title <BR> <BR>(Message edited by waterfreak on October 18, 2007)

10-18-2007 2:08 PM

Torque = HP at around 5280 RPM's. HP is a calculation based on torque and using RPM's.

05mobiuslsv 10-18-2007 2:11 PM

The monsoon 340 for malibu is 397 ft lb of torque.

showtime 10-18-2007 2:17 PM

here is an example <BR> <BR> torque * RPM * constant = hp <BR> <BR> 87.5 lbf-ft * 60 rev/min * X = 1 hp <BR> <BR> <BR> X = 1 / (60 * 87.5) = 1/5250 <BR> <BR> torque * RPM * 1/5250 = hp <BR> <BR> hp = (torque * RPM) / 5250 <BR> <BR> <BR>(Message edited by showtime on October 18, 2007) <BR> <BR>(Message edited by showtime on October 18, 2007)

26lacefield 10-18-2007 6:20 PM

torque...... who needs that just tighten it as tight as u can hahahaha.

doug2 10-18-2007 7:46 PM

It might be a silly question, but why do you care? Change the prop to make up for low end, hole shot or less prop for top end. Are you running over 2000# of ballast? I have the 320hp Indmar in my 21V, with a new prop and gravity games ballast (well over 2000#) and have no problem getting up on plane...

rallyart 10-18-2007 10:00 PM

There is a video test I've seen on a sterdrive Four Winns (I think) with three different engines. I can't find it right now but they rate two small blocks and the big block. It's worth watching to answer part of your question waterfreak. If I find it I post the url but I not near my other computer.

prostartjh 10-19-2007 1:16 PM

Go to Indmar's web site and contact customer service thru an email. They are very responsive and easy to work with. They gave me the torque curve for my engine verses the MCX350. I have the L-18 big block engine. <BR> <BR>Never have to worry about HP or torque.

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