[cherche]

Got my 2013 Brutie 1090 RR back from my trusted tuner.

Inspired of Balz' thread of the F4 cylinder head on a 144 hp 1090 R I found some similarities to my first dyno session:

Here is Balz' thread on the F4 cylinder head:
http://www.mvagusta.net/forum/showthread.php?t=70610

So I checked the order # for rev sensitive parts and found out that valves, springs etc. were put in from former F4s that can rev 13000 rpm.

I then gave back my Brutie into the hands of my trusted tuner and nearly got the same results like Balz:

My tuner also found some more hp by adjusting the ignition - here is before and after:

The only changes I did:
- MV Corse headers
- snorkels of the airbox removed (plus the inner weird tubes)
- BMC air filter installed

Standard cans!!! So low noise.

This is what the 1090 RR of the years 2012+ really can do if they would have let her go ex works as intened to. MV Agusta put the rev limiter to 11600 rpm although the max power should come up at 11900 rpm and the rev limiter at 12200. This is the official data!!! But I never saw on any dyno run that a 1090 RR did rev more than 11600 rpm.

I would never go for PC - as the ignition advance makes a lot of difference. So Rexxer or Microtec from Chris. I went for Rexxer as I have an tuning point with the platinum software just near to me.

Special thanks to Hans for his help (and Balz of course).

Jochen

 

[hb88xx]

I am also still surprised how low mine reaches max power 11300rpm, check balz thread http://www.mvagusta.net/forum/showpost.php?p=802441&postcount=11
With the microtec i am able to rev it till 14000, as piston speeds are not that high still, more critical might be the valves following the cams. No idea how much margin MV has put into those.

 

[fasduc]

Chris are you saying that you checked the part#'s and the 2012+ 1090RR use the F4 valves, springs? So the limiting factor for more HP is the rev limit set at 11,600?

 

[cherche]

I'm not Chris, but I can answer your question .

What they installed on a 2012+ 1090RR:

- intake valve of the F4 before 2010 (steel)
- exhaust valve of the F4 after 2010
- valve springs are all the same

It seems they installed the intake cam of the F4 1078 but the normal exhaust cam of the 1090R Brutale.

You can double check the order numbers here:

http://www.startwintrading.com/
or here:
http://store.proitalia.com/mv-agusta-oem-parts.php

But the most important thing is:

MV Agusta rates the RR 158 hp at 11900 rpm with a red line at 12200 rpm. But all RRs hit the rev limiter at 11600 rpm :wtf: .

See here here the official specs:
http://www.mvagusta.it/en/motorcycles/brutale-1090-rr/

and here (if you can read Italian):
http://feis-ciuk.no-ip.org/phpBB3/viewtopic.php?f=7&t=579

With the rev limiter set to 11600 rpm the RR only reaches 250 km/h and so is slower than the R wit 144PS as the R has 2 teeth less on the rear sprocket. 250 km/h were measured in German motorcycle magazine as top speed of the RR instead of 265!

So no need to worry about as I did what the factory should have done.....
Jochen

 

[fasduc]

Sorry Jochen, I guess i was talking to myself, LOL!! Thanks for the info!!