Jump to content
Sign in to follow this  

Looking for RR4t range dyno graph

Recommended Posts

The only Beta dyno graph I have ever encountered was a comparison between the XT and the 300RR.

 

I'd love to see some for the 4t range (350, 390, 430 and 480). I am interested in seeing the power and torque curves more than the numbers, to gather insight on the engine characteristics of each, but numbers never hurt ;)

 

 

Share this post


Link to post
Share on other sites

The only Beta dyno graph I have ever encountered was a comparison between the XT and the 300RR.

 

I'd love to see some for the 4t range (350, 390, 430 and 480). I am interested in seeing the power and torque curves more than the numbers, to gather insight on the engine characteristics of each, but numbers never hurt ;)

 

There was one a few years back on another forum for the 498 motor. It puts just about 50 hp at the rear wheel. Can't remember the torque and HP curves exactly. I'm thinking they are pretty flat with no big spikes. 

Share this post


Link to post
Share on other sites
On Mon Nov 02 2015 at 2:54 PM, matgaz said:

The only Beta dyno graph I have ever encountered was a comparison between the XT and the 300RR.

 

I'd love to see some for the 4t range (350, 390, 430 and 480). I am interested in seeing the power and torque curves more than the numbers, to gather insight on the engine characteristics of each, but numbers never hurt ;)

 

 

Here are dyno graphs of the 350/390/430 stock and with a GET ecu and boano exhaust. 390 surprised me.

 

Screenshot_20171019-011259.png

Screenshot_20171019-011308.png

Screenshot_20171019-011321.png

  • Like 2

Share this post


Link to post
Share on other sites

Thanks.

"Stock" is the Boano tune on factory exhaust system.

Here is the full link: http://www.betaboano.com/cgi-bin/allegati/281374_CENTRALINA PER BETA RR4T EFI INFORMAZIONI_eng.pdf

350 vs 390 is very interesting. 430 is like a faster revving 390. That being said, the torque curve would tell the other side of the story.

Edited by matgaz
  • Like 1

Share this post


Link to post
Share on other sites

There was a 350 shootout from Germany posted up a few years (2015/2016) ago with a dyno graph. The Beta from memory made a peak of 43ps the Kato and husky 46ps but the Beta smacked them both in the midrange by a fair bit. I think Husky won with Beta 2nd it got slammed for being 3kg heavier. 

 

MM 

Share this post


Link to post
Share on other sites
30 minutes ago, matgaz said:

 

"Stock" is the Boano tune on factory exhaust system.

 

Sorry my bad.

I'm surprised the 430 lost so much power after peak. Does the 390 and 430 share the same head/cams?

Share this post


Link to post
Share on other sites

 

 

Here are dyno graphs of the 350/390/430 stock and with a GET ecu and boano exhaust. 390 surprised me.

 

 

 

 

Screenshot_20171019-011259.thumb.png.4da95020b84b2a8a9b6bc0c0624c29b4.png

Screenshot_20171019-011308.thumb.png.20191751812529f32f01e6a78ec1cda9.png

Screenshot_20171019-011321.thumb.png.870de642b59542b331c63904926f2e56.png

Sharing an old post/chart by Roon.

 

"OK, here it is...... stock 2017 RR480 on the dyno (Red line)...the Green line is another manufacturer's stock 2017 500

 

Power peaks at a bit over 60HP from 8k to 9k RPM 

 

I will try and get some of the 2018 BETA 4Ts on to the same dyno so we can see what difference the dual injectors make to power delivery"

 

 

 

  • Like 1

Share this post


Link to post
Share on other sites
18 minutes ago, gaortiz said:

Sharing an old post/chart by Roon.

 

"OK, here it is...... stock 2017 RR480 on the dyno (Red line)...the Green line is another manufacturer's stock 2017 500

 

Power peaks at a bit over 60HP from 8k to 9k RPM 

 

I will try and get some of the 2018 BETA 4Ts on to the same dyno so we can see what difference the dual injectors make to power delivery"

 

 

 

Found this on Youtube, 50rwhp seems more reasonable imo.

Screenshot_20171019-042034.png

Share this post


Link to post
Share on other sites

If recall correctly the 390 has a longer stroke than the 350 and the 430 has a smaller bore than the 480. the 390 and 430 don't share much if I am correct.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Reply with:

Sign in to follow this  

×
×
  • Create New...