Full Remus - with/without baffle??

[GSmonkey]

Been running a Remus Revolution on my GSA for the past couple of months without problem. I bought it from a tosser of this parish - but he neglected to tell me that the baffle was knackered (the 'bracket' which held the rivet was snapped off).

Not had chance to test the bike since fitting the exhaust, but I read some posts which seemed to imply that removing the baffle from the full remus system actually makes the flatspot at 5500rpm worse!!!!

As I don't have a working baffle to test, can anybody please confirm whether the full Remus system is better with the baffle? My idea of baffle is reduced flatspot and better midrange torque.

Cheers

 

[dudlow]

Its much better without the baffle. No noticeable flat spot (full system fitted) and sounds great. My only concern, after 15000 miles of use, was that it might be too lean, so I have just gone the whole hog and fitted a k+n, done the snorkel mod, and fitted a Techclusion. Hell of a difference. One thing, I have always used Tesco 99 whenever possible, and that makes a big difference over lower grade fuel (after aprox 300 miles) to the flat spot.

 

[GSmonkey]

Cheers dudlow.

I plan to take it to HM Racing dyno to check the fuelling. Nice to know its not running lean for £45.

 

[BMW TEKKY]

The injection system on these bikes adjust themselves.
If you want more power put more air in...thats the only way.....trust me..dont behave like a teenager with a 50cc scooter.

 

[GSmonkey]

Just had it out on a wee test ride post installation of the Remus headers. Running it with the Remus can without the baffle there is certainly no flat spot. The torque gradually increases from low rpm upward to a peak at just over 6000rpm. Maybe a slight reduction in low (sub 3000rpm) end torque, but I'd have to do a proper back-to-back test to confirm.

The overall result is:
-You tend to use full rev range more readily as you don't come up against the flat spot with encourages a short shift.
-The noise is loud, but not too loud. You'd want to ride with earplugs, but that should be the case anyway.
-The popping and banging on overrun is reduced in frequency, but sounds louder.

Overall the bike feels as though its running a lot better.

I might try the Remus headers / standard can combination to see how that sounds / feels.

 

[Wapping]

I have run (and still do) a full Remus system, from new, on both a vanilla 1200 and 1200GSA.

I have never experienced the flat spot problem, some people speak of.

Sometimes I think punters read about many bikes' ability to pull from low rev's in high gears and then get dissapointed when, at low rev's and lowish speeds in say, 5th or 6th gears, they crack the throttle open and nothing happens. This they then translate into a 'flat spot'.....

Make the rev counter spin, preferably in the upper reaches of the dial and all is well, just as it is on all bikes.

 

[dudlow]

Just had it out on a wee test ride post installation of the Remus headers. Running it with the Remus can without the baffle there is certainly no flat spot. The torque gradually increases from low rpm upward to a peak at just over 6000rpm. Maybe a slight reduction in low (sub 3000rpm) end torque, but I'd have to do a proper back-to-back test to confirm.

The overall result is:
-You tend to use full rev range more readily as you don't come up against the flat spot with encourages a short shift.
-The noise is loud, but not too loud. You'd want to ride with earplugs, but that should be the case anyway.
-The popping and banging on overrun is reduced in frequency, but sounds louder.

Overall the bike feels as though its running a lot better.

I might try the Remus headers / standard can combination to see how that sounds / feels.

Don't bother with the standard can, it sounds dreadful after an open remus - just keep it for when you eventually sell the bike.

 

[GSmonkey]

Just started running the Remus with the baffle in for a few miles. Decided that it pulls marginally better when plugged up.

 

[Boxerboy55]

Flat Spot - or maybe not

Sometimes I think punters read about many bikes' ability to pull from low rev's in high gears and then get dissapointed when, at low rev's and lowish speeds in say, 5th or 6th gears, they crack the throttle open and nothing happens. This they then translate into a 'flat spot'.....

Make the rev counter spin, preferably in the upper reaches of the dial and all is well, just as it is on all bikes.

I run Remus Headers and Akropovic can and love the Snap, Crackle and Pop.
I also like to ride along in a "Responsive Gear" as our advanced drivers/riders teach us, so normally use my brakes much less than the vehicles in front of me.

Must pay more attention next time I'm out to double check if I have any Flat Spots - or not. It sometimes fluffs, or bogs down, but I usually put that down to rider error.

As mentioned above, if you ain't got the motor singing, you're gonna bog down, be unresponsive and maybe start worrying abvout Flat Spots.

Test the Rev Limiter now and again

 

[patzx12]

I am running a Remus end can without the DB killer and find it a bit anoying when cruising the constant thump-thump-thump sounds like you are being followed by one of these hatchbacks with the big bore exhaust.
I may go back to the standard can.

 

[Bengaz]

I run a full remus system carbon can. The sound is not too nice without baffle removed, yeh its loud but its not a nice sound. With the baffle in the flat spot is barely noticeable and the bike is definately faster mid range. Oh and it sounds miles better than without the baffle, just the right level of noise a GS should make.
Only downside, it doesnt pick up from idle as well as the standard system.

 

[wadham]

I ran Remus headers with K&N filter and Remus end can with baffle in on my old GS1200.

I had it on a dyno before and after. The best combo for smooth power is with the Remus headers and baffle in the Remus. The stock end can was just as good so I'm keeping it on this time round when I change the headers to save money.

This set up was running slightly lean only at high revs ie above 7000rpm ish, which as we dont ride there very often was not a concern, OK all other revs.

 

[GSmonkey]

I ran Remus headers with K&N filter and Remus end can with baffle in on my old GS1200.

I had it on a dyno before and after. The best combo for smooth power is with the Remus headers and baffle in the Remus. The stock end can was just as good so I'm keeping it on this time round when I change the headers to save money.

This set up was running slightly lean only at high revs ie above 7000rpm ish, which as we dont ride there very often was not a concern, OK all other revs.

Any chance of you posting the dyno charts? My seat of the pants dyno tells me roughly the same.

 

[wadham]

Sorry, binned them when I flogged the old Gs 2 yrs ago.