RB WS9 or Novarossi 21-5k ??
08-20-2009, 04:56 AM
#1
RB WS9 or Novarossi 21-5k ??
I hate to ask but I have ran RB's for the last 5 years and love'em, but need a new engine and I am looking at a Houston modded 21-5K and the new RBWS9
It's going into a MBX6.
Again I hate these this one vs that one threads just looking for some un-bias help, Thanks Joe
It's going into a MBX6.
Again I hate these this one vs that one threads just looking for some un-bias help, Thanks Joe
08-20-2009, 09:11 AM
#2
when i read your thread title i was all ws9 for sure. then reading a houston mod 21-5k i leaned that way...either are great choice. if the novarossi was modded for efficiency id jump that way also considering support from houston. thats a tuff choice you got there good luck with it
08-20-2009, 09:13 AM
#3
id get as many details from houston as possible. considering you know how the sw9 is going to act youll be able to weigh which engine is correct for your style
08-20-2009, 05:28 PM
#8
From a general perspective, I've owned both RB and am now running Nova. For as long as Nova's are available I will never think twice about buying them, much better engines 
08-20-2009, 05:40 PM
#10
08-21-2009, 04:51 PM
#11
I got the 21-5K on order with the R2R break-in, and some mods to try and get some more runtime. Now I am wondering if I want to get a turbo head done up for it??? Any ideals?
I have heard the standard plug version has a very smooth, electric like feel to the power band and the turbo one is more of a handful to drive.
I have heard the standard plug version has a very smooth, electric like feel to the power band and the turbo one is more of a handful to drive.
08-21-2009, 05:35 PM
#12
I got the 21-5K on order with the R2R break-in, and some mods to try and get some more runtime. Now I am wondering if I want to get a turbo head done up for it??? Any ideals?
I have heard the standard plug version has a very smooth, electric like feel to the power band and the turbo one is more of a handful to drive.
I have heard the standard plug version has a very smooth, electric like feel to the power band and the turbo one is more of a handful to drive.
08-21-2009, 05:41 PM
#13
ofna 063 is one of the very best pipes i have ran on the 21-5k , i still also stand by my other pipe choices = dynamite 086hs (novarossi 9886/41021or41020 for a little more low end grunt) , ofna 053 (novarossi 9853/41005)
the low end based pipes have much better mileage with a sacrifice of a little top end screaming power which is where your fuel gets expelled the most .
08-21-2009, 07:18 PM
#14
not very good mileage though
ofna 063 is one of the very best pipes i have ran on the 21-5k , i still also stand by my other pipe choices = dynamite 086hs (novarossi 9886/41021or41020 for a little more low end grunt) , ofna 053 (novarossi 9853/41005)
the low end based pipes have much better mileage with a sacrifice of a little top end screaming power which is where your fuel gets expelled the most .
ofna 063 is one of the very best pipes i have ran on the 21-5k , i still also stand by my other pipe choices = dynamite 086hs (novarossi 9886/41021or41020 for a little more low end grunt) , ofna 053 (novarossi 9853/41005)
the low end based pipes have much better mileage with a sacrifice of a little top end screaming power which is where your fuel gets expelled the most .
I haven't personally run the 2013, so I don't know about milage. I was just going by observation of my buddies that run them. Plus they have "that sound".
