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700 SCI Merc motor

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Old 11-17-2009, 09:35 AM
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Default 700 SCI Merc motor

Whats the deal with the 700sci? The redline is 6200 to 6400 rpm?

http://www.youtube.com/watch?v=rMgXSAjGZrM
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Old 11-17-2009, 09:52 AM
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Those motors have a stage II Whipple kit on them.
Stock, the rev limiter is at 5400 rpm.

This kit consists of a re-programed PCM, which raises the rev-limiter, and alters timing and boost controls. It also consists of a water re-route to the innercooler, and a smaller pulley.

A Merc 700sci in this state of tune produces aproximately 820hp +/-

Dustin has done a really fine job of producing horsepower upgrade kits for the 600sci/700sci motors.

I love my 600sci Stage II.

Hope this helps,

Chris
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Old 11-17-2009, 10:19 AM
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My buddy just bought an Outerlimiuts with 700's. Seems like right on the edge with the hydraulic roller lifters.

How much was the kit?
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Old 11-17-2009, 01:55 PM
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What 700 Ol did your buddy buy?
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Old 11-17-2009, 02:45 PM
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nice!
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Old 11-17-2009, 05:20 PM
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Well we have been up and down this road several times.

How long will motors last with that power

what about the ability of the NXT transmissions/clutch to handle the power
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Old 11-17-2009, 06:04 PM
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Quote:
Originally Posted by gnorthga View Post
Well we have been up and down this road several times.

How long will motors last with that power

what about the ability of the NXT transmissions/clutch to handle the power
Have quite a few customers with 200+ hours on them and were talking extremely hard hours. I know of one thats been in 10 poker runs. Zero issues, keeps going strong. NXT's really have no issues, the weakest point is the trans, but as of now, I only know of one customer that had one fail, and it failed twice stock so something else is wrong. Customer replaced trans with Bam's.
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Old 11-17-2009, 10:12 PM
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Quote:
Originally Posted by fountain40icbm View Post
What 700 Ol did your buddy buy?
Brand new 39 Quatro with 700's and NXTs. Boat is Grey and Blue.
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Old 11-17-2009, 11:13 PM
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Quote:
Originally Posted by Whipple Charged View Post
Have quite a few customers with 200+ hours on them and were talking extremely hard hours. I know of one thats been in 10 poker runs. Zero issues, keeps going strong. NXT's really have no issues, the weakest point is the trans, but as of now, I only know of one customer that had one fail, and it failed twice stock so something else is wrong. Customer replaced trans with Bam's.
Well I have heard about the same, but there is the posibility that you could have trouble

What rpms are most people running with this set up from whipple
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Old 11-17-2009, 11:17 PM
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Oh, the LCM/repo 39. That is one of my favorite 39's! Your buddy got a great boat!!
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