BMW F650 Forums banner

Any power gain mods for a funduro?

13K views 12 replies 10 participants last post by  The Wilbur 
#1 ·
Hi, does abybody know how to get some more power from funduros. The bike fits me well :riding: so I don't really want to change it unless I decide to buy the new F650. I could do with a bit more power, though. All help greatly appreciated.
 
#3 ·
Despite Wilburs rude reply he is right in that there is not much in the way of easy power gains.
Popular mods are to drill the snorkel (air intake) and or a free flow air filter; a less restrictive exhaust can; iridium plugs; and a fuel nanny or power commander.

None of these will see huge improvements but will give a better response to throttle imput, and up the decibels.

Less popular is NOS.
JD :think:
 
#4 ·
f1a0z0e0r said:
Despite Wilburs rude reply he is right in that there is not much in the way of easy power gains.
Popular mods are to drill the snorkel (air intake) and or a free flow air filter; a less restrictive exhaust can; iridium plugs; and a fuel nanny or power commander.

None of these will see huge improvements but will give a better response to throttle imput, and up the decibels.

Less popular is NOS.
JD :think:
That's not rude :naughty: just practical ;) .

Read the original post & note that he has a Funduro, so Snorkel mods, fuel nanny & power commander would not be much use.

Another good reason for including the model & year of your bike in your Profile or Signature. :think:



 
#5 ·
Wilbur is right, and it's probably better for your health to lose weight as well! (This assumes you're a bat fastard though).

Alternatively you could go all out on the engine - get the head ported, crankshaft balanced, fit a free-flowing exhaust, blueprint everything - with lightened and balanced conrods, free-flow air filter, Iridium spark plugs...that ought to gain you some power. Go daft and supercharge it, turbocharge it, and fit nitrous oxide.

Then lose some weight from the bike. Carbon fibre body panels everywhere, replace the wheels with carbon fibre or magnesium ones...

All of the above you could do. How many would be cost effective on a Funduro is another matter...
 
#6 ·
Probably the most cost efective thing to do would be an aftermarket exhaust, maybe off fleebay, then just go through everything on the engine. Oil, filter, air filter, Valve adjustment, plug gap etc. new HT leeds and caps or clean the ones that are fitted.
Make sure your brakes arnt binding.
Grease everything that needs greesing. I always put extra blobs on the wheel beerings and wheel spindles.
Tire pressures.
All the above could be done for very little, apart from the can.
If your gonna start making it go faster think about the brakes, cos you do need to stop eventualy.
keep it simple and dont expect R1 performance :riding:
 
#7 ·
More power but why
Do you want to go faster or do the quarter mile more quickly?

I remember all this from when I was on an Enfield forum. People wanted to go faster on Enfields. Which is a not a very safe idea as the whole bike wasn't designed to travel fast.
Weird that people all expect the performance from a single to be the same as a four cylinder. It is so much cheaper and better to get a four cylinder.

Ton
 
#8 ·
A little bit extra is always helpful if you want to carry a pillion or lots of luggage...but if you want to go in for big modification you're in the wrong game with bikes in general (Suzuki Bandit 1200 excepted). Bikes have far higher specific outputs than cars, and there's less power gains to be made. Exhausts and filters do give you a bit though. If you start spending loads on head jobs and camshafts then you either bought the wrong bike for what you want to do, or you're going racing.
 
#9 ·
A remus GP end can sounds nice and gives a much fatter spread of mid-range torque (where you can really use it).
A 17T front sprocket gives you 90PMH cruising at 6K RPM (70MPH comes up at just over 4K!) and 100MPH squirt ability.
These two little mods make a big difference to the way the bike runs and feels, especially the sprocket - you're not confined to the inside lane of the M'way any more, you can play with the big boys in the outside lane .
 
#10 ·
Hi. You can try changing the front sprocket to 15 tooth, this will improve acceleration. I had one on until recently, when I changed the chain and sprockets and put on a new 16tooth front.
The change in acceleration was noticeable... not so quick off the mark with 15T.
My 2cents!
 
#11 ·
There are massive gains you can make with Rotax engines however at a considerable price, Theres a company that specialise in different stage kits however he result is impressive but is it raelly what you want?

A friend has a 500 Rotax which has approx £1k of engine mods however its a monster to ride. The nice roll on of in and out of corners is replaced with full on power. Its turned a gentle engine into a raw either wheelie and flat out bike or going hell for leather.

Personally I prefer a bike I can ride at all paces abd relaxing when I want.
 
#13 ·
Stevey B said:
TheWilbur said:
Think Power to Weight ratio, & loose some weight.

:riding:
People in glass houses, springs to mind. !!!!!!!!!!

Stevey B
Good to see that standards are being maintained regards Police response times. ;) Plus, I'm not the one looking for more power; if I was, I would buy a more powerful bike. :whistle:



 
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top