2015 EC300 power gains

[Barbs]

Hi all.
Im looking to do a few mods on my 300 to get the most i can out of it at a reasonable budget. Firstly im looking to set my squish correctly. What is the recommended squish for the '15' motor?
Next im looking at a pipe/muffler from HoH but want to know if the gains are going to be worth the money over the stock pipe/muffer. Living in Australia its nearly $900 for the HoH kit with the current exchange rate so i want to make sure im not wasting my money. Does anyone have a before and after video with the sound difference of the two pipes. Or dyno results of before and after?
Any help would be greatly appreciated.

 

[(F5)]

Its not just the squish but reshaping as well. Jake will be along to give Dave at something like TSP a plug, think he was based in Vic. Hmm, yeah Google it and it comes up.

 

[Barbs]

Yeah I have planned on sending my head to TSP. I spoke to Dave there today so thats all sorted. Im kinda more interested in the power gains from switching exhausts

 

[Jakobi]

You'll be right going with Dave at TSP. Had him turn my last 2 heads to clearance and volume I was looking for. He actually sparked my interest in the how and why back when he was working from his backyard. Pretty sure he's flat chat these days.

I'd like to chime in and give some advice re exhaust combinations but I've only ever used stock. I like the spread on the stock pipe. They seem robust enough too. Silencers, I think I preferred the turbine core 2 on the 10 model. The Q stealth on the 12+ are big bulky 4 stroke looking cans. I cut mine back to right behind the rear mount and removed the spark arrestor (turbine) - not sure if it made much difference in terms of power/delivery but greatly reduced the spooge factory.

 

[Barbs]

Thanks Jakobi.
I have spoken to Dave and im going to leave the head all to him. He definately knows his stuff.
As for the muffler etc. I am running the NEDW needle etc as i have discussed with you before in another thread and i have no spooge at all on my '15'. Im running 50:1 Motul 800 and it loves it.
I emailed Richard at House of Horsepower and he replied with the below statement.

With s3 head and mild porting and Lectron carb with my exhaust we pulled 54 hp on dyno

Does this seam realistic?

 

[Jakobi]

Dyno numbers alone mean very little. Numbers can vary from dyno to dyno, and are highly dependent on many variables. I'd be more interested in seeing some data from before, after, during modification phase to see how each element truly influenced the power curve. Of course even then you're at the mercy of variables beyond your control (given atmospheric conditions during each pull).

One thing I will add though, is that given our use of these bikes peak HP is rarely that important. How long do you typically hold the throttle wide open and let it sing at its upper end of the rpm? A useful torque curve will do worlds to improving corner exit speed which in turn cuts faster laps.

I don't know where you are in relation to Dave, but if you could get yourself some dyno time to dial in the both the modified head, power valve, and jetting I think you'd see some notable differences. I also believe there are some significant gains to be made in the CDI/Ignition timing. Daves done quite a bit of work on the ktms in this regard and being that they both share Kokusan stators and modules I think it would be worth your while considering that as an option too.

 

[Barbs]

Thanks Jake.
Ill speak to Dave again regarding the ignition tune up.
The only reason id like to get more grunt is for events like Hattah and Finke. I mostly compete in endure and reliability trials so I do not really require peak HP but more useable torque would be great. For now I will stick with the stock pipe and see how it goes from there.

 

[Capz85]

Not sure if these are any good to you but I have dyno sheets for my 11 300 sm

First one is with fresco front and pro circuit rear

And the second it with a 38 lectron added

 

[Capz85]

And this is with the lectron on black line was the first run and red line was the last