Akrapovik Moto2 exhaust installed on my 07 - 600RR.net
Exhaust & Fuel Delivery Tips on how to get the most out of your bike

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post #1 of 62 (permalink) Old 07-04-2015, 06:37 AM Thread Starter
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Akrapovik Moto2 exhaust installed on my 07

Hey guys,

I finally got the full moto2 exhaust I've been waiting for a long time. It's one of the exhausts used in Marquezs sutter moto2, when he won the world championship. It's been hard to get but worth the effort as it's a unique piece of kit.



The sound is amazing and after tuning the bike on the dino with some other HRC mods we've seen a gain of 14.2 HP to the rear wheel. Very happy with the result.

Here you have some videos with the sound.



Sound video
https://youtu.be/9jskZcELMYI
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post #2 of 62 (permalink) Old 07-04-2015, 09:29 AM
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Looks and sounds stunning. Do love a good side exhaust!



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You only go as fast as you twist the throttle.

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post #3 of 62 (permalink) Old 07-04-2015, 10:16 AM
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There was a member trying to sell one here a while back and from what I can remember, it was very reasonably priced.

Better pics please!
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post #4 of 62 (permalink) Old 07-04-2015, 10:23 AM
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There was a member trying to sell one here a while back and from what I can remember, it was very reasonably priced.

Better pics please!


What he said, more pictures!
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post #5 of 62 (permalink) Old 07-04-2015, 04:35 PM
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Nice! Also in for more pics.

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post #6 of 62 (permalink) Old 07-04-2015, 04:50 PM
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Ohh heavenly!!!! Please don't crash with that... That thing is a gem.
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post #7 of 62 (permalink) Old 07-04-2015, 07:05 PM
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How much was it? Just curious.

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Mod List
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post #8 of 62 (permalink) Old 07-05-2015, 05:02 PM
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muhahah where did you get it? I want one lol

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post #9 of 62 (permalink) Old 07-07-2015, 09:33 AM Thread Starter
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Haha I got it directly from one of the team mechanics, it's a friend of mine. As for the price, I paid 2.500€ for the exhaust, thats the sum of what the team pay to akrapovic. Previously I had an akrapovik full exhaust tuned on the dyno and with this one it made 14.2hp more, it's ridiculous, but thats moto2 engineering at its best.

I attach some more pictures







Video soon...
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Last edited by MallorcaRS; 07-07-2015 at 09:36 AM.
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post #10 of 62 (permalink) Old 07-07-2015, 04:12 PM
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So hot sooooo hot
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post #11 of 62 (permalink) Old 07-07-2015, 08:43 PM
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Very nice!
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post #12 of 62 (permalink) Old 07-07-2015, 08:50 PM
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I love the sound of Akrapovich it never lets you down.

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post #13 of 62 (permalink) Old 07-07-2015, 09:25 PM
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14 hp more than a full akra? Oh wow I want whatever you're on
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post #14 of 62 (permalink) Old 07-08-2015, 03:32 AM Thread Starter
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Quote:
Originally Posted by wibbly View Post
14 hp more than a full akra? Oh wow I want whatever you're on
I already had the HRC cams installed but the tune was not perfect as with the power commander we had some limitations.

Changes were:

From power commander to rapid bike 3 Racing + tune
HRC head gasket
moto2 exhaust

Moto 2 bikes are making about 140 hp to the rear wheel, mine is just 123, it's not that crazy it is?


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post #15 of 62 (permalink) Old 07-08-2015, 08:17 AM
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A decent standard engine with a full system, air filter and map will generally make 110-115 at the wheel. More race orientated parts like the HRC cams and full race exhausts will generically speaking give more peak power at the expense of low end. I'd think for the parts that you've got fitted 123hp is probably about right, would be very interesting to see the torque curve to see what spread of power you're getting from it.

You only go as fast as you twist the throttle.

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post #16 of 62 (permalink) Old 07-08-2015, 11:14 AM
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Quote:
Originally Posted by MallorcaRS View Post
I already had the HRC cams installed but the tune was not perfect as with the power commander we had some limitations.

Changes were:

From power commander to rapid bike 3 Racing + tune
HRC head gasket
moto2 exhaust

Moto 2 bikes are making about 140 hp to the rear wheel, mine is just 123, it's not that crazy it is?
FIrst off, congratulations that's a gorgeous exhaust. Best looking and it seems best working system available. Nice to have those kind of friends.

140hp for Moto2 bikes is about what I've read. If possible could you ask your friends in Moto2 some questions for us about their 600RR engines that we've been wondering about in another thread.

1-I know they can't service or build the control engines themselves but does he know what sort of tune they are in? Cams, big bore kit, head work, etc?

2- I know Moto2 uses the stock airbox but what about velocity stacks or air filters. Nakagami was penalized last year for his team using an aftermarket non approved air filter. I've read that Moto2 uses OEM air filter. True?

3-What electronics are they using? I was under the impression it's off the shelf Motec system? Yes?

4-Lastly can you or your friend confirm how the engines are sourced. Are they stock OEM crate motors from Honda that Dorna's contracted engineering firm builds and tunes?

If you know or could ask it would be interesting to us here. Thanks.

Last edited by PdubRR; 07-08-2015 at 11:17 AM.
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post #17 of 62 (permalink) Old 07-08-2015, 12:27 PM
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That's a very nice exhaust.
Have you talked with the team that provided you the system about parts??
~ 123hp is more or less the standard for the hrc kit. If it was my project I would use HRC wiring & ecu to remove all the road restrictions and the extra cables and connectors. HRC ecu is a good way to go.

thanks for sharing

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post #18 of 62 (permalink) Old 07-08-2015, 02:44 PM Thread Starter
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Quote:
Originally Posted by PdubRR View Post
FIrst off, congratulations that's a gorgeous exhaust. Best looking and it seems best working system available. Nice to have those kind of friends.

140hp for Moto2 bikes is about what I've read. If possible could you ask your friends in Moto2 some questions for us about their 600RR engines that we've been wondering about in another thread.

1-I know they can't service or build the control engines themselves but does he know what sort of tune they are in? Cams, big bore kit, head work, etc?

2- I know Moto2 uses the stock airbox but what about velocity stacks or air filters. Nakagami was penalized last year for his team using an aftermarket non approved air filter. I've read that Moto2 uses OEM air filter. True?

3-What electronics are they using? I was under the impression it's off the shelf Motec system? Yes?

4-Lastly can you or your friend confirm how the engines are sourced. Are they stock OEM crate motors from Honda that Dorna's contracted engineering firm builds and tunes?

If you know or could ask it would be interesting to us here. Thanks.
1-4 - Engines are stock 600rr made by honda and tuned by Geo Technology S.A, teams can't open the engine so tune is unknown.

2 - Stock airbox must be used, air filter can be replaced or removed. Velocity stacks can be modified.

3 - He doesn't remember wich ECU it was, but the ECU was supplied by the tuner and they only had a few parameters to modify.


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post #19 of 62 (permalink) Old 07-08-2015, 02:50 PM Thread Starter
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Quote:
Originally Posted by DimSTriple View Post
That's a very nice exhaust.
Have you talked with the team that provided you the system about parts??
~ 123hp is more or less the standard for the hrc kit. If it was my project I would use HRC wiring & ecu to remove all the road restrictions and the extra cables and connectors. HRC ecu is a good way to go.

thanks for sharing
Yes, I talked a few times with them but they don't care much about my bike haha I'm pretty happy with the figures obtained, I coud have more power but I didn't want to remove the stock rev limiter without changing the valve springs. Maybe in the near future I will change to hrc harness + hrc ecu + hrc spark plugs + hrc valve springs and go that extra 1k revs and see what happens, but for the moment I'm more than happy with how it is now.

Regards


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post #20 of 62 (permalink) Old 07-09-2015, 04:07 AM
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Looks & sounds Grand congrats the track clip you attached is simply Akra music thanks for sharing



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Wow that is crazy. Ae you guys getting 120 ish on pump gas? my bike has:
hrc kit cams
hrc kit ecu
hrc kit harness
hrc kit rad
port polish
multi angle valve job
k&n air filter
modified stacks
full exhaust
custom tune
race head gasket and i am only at 113hp.

I bought canada's national champs bike. If i went to race fuel like mr12 they said i would easily be north of 120. but just want to be clear how you are basing your numbers.
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post #22 of 62 (permalink) Old 07-11-2015, 07:09 AM Thread Starter
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Looks & sounds Grand congrats the track clip you attached is simply Akra music thanks for sharing
Thanks!

Quote:
Originally Posted by Crashchris View Post
Wow that is crazy. Ae you guys getting 120 ish on pump gas? my bike has:
hrc kit cams
hrc kit ecu
hrc kit harness
hrc kit rad
port polish
multi angle valve job
k&n air filter
modified stacks
full exhaust
custom tune
race head gasket and i am only at 113hp.

I bought canada's national champs bike. If i went to race fuel like mr12 they said i would easily be north of 120. but just want to be clear how you are basing your numbers.
I was told to use 98 fuel only, here in Spain we have 95 or 98 fuel, due to the raise of compression I have to use the 98, I have no idea about how's the fuel in the US.


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post #23 of 62 (permalink) Old 07-11-2015, 07:28 AM
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Akrapovik Moto2 exhaust installed on my 07

Quote:
Originally Posted by Crashchris View Post
Wow that is crazy. Ae you guys getting 120 ish on pump gas? my bike has:

hrc kit cams

hrc kit ecu

hrc kit harness

hrc kit rad

port polish

multi angle valve job

k&n air filter

modified stacks

full exhaust

custom tune

race head gasket and i am only at 113hp.



I bought canada's national champs bike. If i went to race fuel like mr12 they said i would easily be north of 120. but just want to be clear how you are basing your numbers.

Every dyno is different so it may just be the fuel. That said, I'm running 114 at the wheel with just a full system and filter.

I expect something must be limiting your power output and fuel could well be it. Here in the uk we generally have 95/97 octane pump fuel. I generally run Shell V Power which is 99.

You only go as fast as you twist the throttle.

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Last edited by Buckley.S; 07-11-2015 at 07:31 AM.
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post #24 of 62 (permalink) Old 07-11-2015, 04:27 PM
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I usually run 91 here in regional. in national we can only run 93 which is garbage or 98 which is garbage as well.

What i mean by that is the 93 makes less than my 91 i get less elsewhere and the 98 can only produce 2 more hp but costs twice as much.

If i were to run vp fuels u4.4 or mr12 i would be easily 120+

Our v power in canada is only 94
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post #25 of 62 (permalink) Old 07-11-2015, 07:22 PM
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That's rubbish, you'd get so much more power on the fuel here in the UK! I wonder how they get away with marketing fuel as the same when it's such a difference between yours and ours.

I've often been tempted by going for HRC cams and increased compression of gain some extra power but wasn't sure if it was worth it or not...

You only go as fast as you twist the throttle.

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post #26 of 62 (permalink) Old 07-11-2015, 08:00 PM
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Don't confuse RON and MON (and AKI) octane ratings

https://en.wikipedia.org/wiki/Octane...rement_methods

HP numbers are a little tricky. Dynos are consistent with themselves, but sometimes not other dynos.
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post #27 of 62 (permalink) Old 07-12-2015, 05:07 AM
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Don't confuse RON and MON (and AKI) octane ratings



https://en.wikipedia.org/wiki/Octane...rement_methods



HP numbers are a little tricky. Dynos are consistent with themselves, but sometimes not other dynos.

Everything in the Uk is measured in RON.

You only go as fast as you twist the throttle.

My build thread: https://www.600rr.net/vb/showthread.php?t=302170

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post #28 of 62 (permalink) Old 07-12-2015, 10:10 PM
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canada is ron+mon/2

shell vpower here is sold as 91, but would be 98 in the uk


we don't have **** gas in canada, you don't have amazing gas in the uk. it's just different numbers.


talking horsepower is a waste of time anyway. all the matters is baseline and after you have done the work and tuning. the gains count more than the actual number.
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post #29 of 62 (permalink) Old 07-13-2015, 08:24 AM
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Quote:
Originally Posted by MallorcaRS View Post
Yes, I talked a few times with them but they don't care much about my bike haha I'm pretty happy with the figures obtained, I coud have more power but I didn't want to remove the stock rev limiter without changing the valve springs. Maybe in the near future I will change to hrc harness + hrc ecu + hrc spark plugs + hrc valve springs and go that extra 1k revs and see what happens, but for the moment I'm more than happy with how it is now.

Regards

You wont have issues revving more than 16k - but of course this is something you must talk with your tunner. I've revved with oem springs as much as 16.500 but with different electronics setup and different level of tune (~140hp at the wheel).

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post #30 of 62 (permalink) Old 07-13-2015, 12:51 PM Thread Starter
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Quote:
Originally Posted by DimSTriple View Post
You wont have issues revving more than 16k - but of course this is something you must talk with your tunner. I've revved with oem springs as much as 16.500 but with different electronics setup and different level of tune (~140hp at the wheel).
Could you get into more detail about your tune? I'm very interested. What about reliability?


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