|
Originally Posted by aTX427
(Post 2998782)
the 600 / 700 is way detuned. How about the NXT trans? What are they rated at and are they breaking? I have only heard of two; one being driver error and the other was in a cat that is run hard in rough water - never heard the real deal on why it broke.
|
Getting a little off track here... but there is a twin-turbo Nordic Thor that is putting nearly 1400 hp thru an NXT, with no failures yet. I believe he has a BAM transmition waiting in the wings. The weak link on the NXT is supposedly the trannny.
Chris |
I WOULD LOVE TO TALKE TO THAT GUY
ARE YOU SURE YOUR NOT A SALESPERSON (for dustin) LOl |
Originally Posted by Jassman
(Post 2998817)
approx 800 hp/tq.. the Merc 700 which is rumered to put out 750-770hp is max on that drive... they were designed for this purpose only.. gap between #6 and the bravo.
|
Originally Posted by gnorthga
(Post 2998943)
I WOULD LOVE TO TALKE TO THAT GUY
ARE YOU SURE YOUR NOT A SALESPERSON (for dustin) LOl http://www.offshoreonly.com/forums/n...2009-thor.html I am not a salesperson for Dustin.... just an extremely happy customer! Chris |
:cool-smiley-011::cool-smiley-011:
Originally Posted by Jassman
(Post 2998817)
approx 800 hp/tq.. the Merc 700 which is rumered to put out 750-770hp.
|
Originally Posted by Beak Boater
(Post 2999118)
:cool-smiley-011::cool-smiley-011:Not doubting you but what is Dustins stage II upgrade putting out then for the 700 sci? I thought it was around 800 hp. I'm sure he is making more than 50 hp with the ecu and pulley change.
The only weakness in the NXT is really the tranny. We've used one on a 632ci 1300hp engine for 2.5 seasons in a single 30' Eliminator V. Blew tranny in first few hours which was do to the shifting at 800rpm (yes it idles at 800). I installed a shift interupt and its made it ever since. Brings rpm to 200 during shifts. We've got hundreds of NXT's running 800+ with zero issues. |
Originally Posted by sport
(Post 2997977)
Why is it that a 525 with a whipple can make 775hp with only 7 psi of boost and a 600sci needs 10-12 to make 750hp? I realize that the 525 has a little more comp. and a little bigger cam. I'm not trying to secound guess any one but that still sounds little a lot of boost. My new nordic 28 is being built with the 600sci and i know i will need more power when the warranty is up but i don't think i would fill good about running that much boost on pump gas. How much boost does the 700sci have to make 700hp? The cam is only slighty bigger in the 700 over the 600.
chris and eddie thanks for all the info Mercury 1075sci runs between 12-13psi of boost with 91 octane and 8.0:1 compression. Also run 34deg of timing vs. 28deg of the 700sci. 700sci also works with 89 octane in stock trim so there's quite a bit left on the table. |
Originally Posted by gnorthga
(Post 2998950)
Were are you getting your data
|
Originally Posted by Whipple Charged
(Post 2999301)
Stage 2 is a conservative 830hp.
The only weakness in the NXT is really the tranny. We've used one on a 632ci 1300hp engine for 2.5 seasons in a single 30' Eliminator V. Blew tranny in first few hours which was do to the shifting at 800rpm (yes it idles at 800). I installed a shift interupt and its made it ever since. Brings rpm to 200 during shifts. We've got hundreds of NXT's running 800+ with zero issues. we have 17x35 Harrings now what you think the rpms are going to come out to be |
| All times are GMT -5. The time now is 11:10 AM. |
Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.