195 bhp / 150 kg K6 GSXR 1000
Discussion
Define dry.... Road/Track bike on "daytime" MOT?
195 measured where and on what dyno?
Rear wheel? Dynojet dyno??
150 is an impressive number if achieved although slightly meaningless. Bikes without any fluids including fork oil etc. Are pretty useless.
For reference, I'm aiming at sub 160 fully track ready including 3/4 fuel on the Ducati and it's not easy or cheap
195 measured where and on what dyno?
Rear wheel? Dynojet dyno??
150 is an impressive number if achieved although slightly meaningless. Bikes without any fluids including fork oil etc. Are pretty useless.
For reference, I'm aiming at sub 160 fully track ready including 3/4 fuel on the Ducati and it's not easy or cheap
Edited by Steve Bass on Friday 9th October 19:00
Steve Bass said:
Define dry.... road bike? Track bike?
195 measured where and on what dyno?
Rear wheel? Dynojet dyno??
150 is an impressive number if achieved.
I'm aiming at sub 160 fully track ready including 3/4 fuel on the Ducati and it's not easy or cheap
I think for the weight he weighed the bits he took off and then weighed the bits he put on to make his calculation of 150 kg. Definitely a road bike with an MOT (so must have had lights etc). I think this is going back 10 years or so and I never saw the bike (as we were living in Switzerland). Not sure how he measured the 195 bhp. 195 measured where and on what dyno?
Rear wheel? Dynojet dyno??
150 is an impressive number if achieved.
I'm aiming at sub 160 fully track ready including 3/4 fuel on the Ducati and it's not easy or cheap
I think he spent a few thousand on the bike but he has never had a lot of money so can’t have been serious amounts and he never raced.
I would be very circumspect about the claim then. Adding and subtracting is not the way to do it. Tell him to roll the bike onto 2 bathroom scales and add the numbers to really know what it weighs.
But like anything, there's easy things to do that save weight and aren't that expensive but then it starts getting expensive and the law of diminishing returns sets in.
Carbon and titanium/magnesium aren't cheap and will only save moderate amounts as the parts need to be retained. Think fixings. Titanium and aluminium fasteners will save a bit of weight but not huge amounts. Custom "type 22" aircraft wiring loom saves another kilo or so but not cheap at all.
But like anything, there's easy things to do that save weight and aren't that expensive but then it starts getting expensive and the law of diminishing returns sets in.
Carbon and titanium/magnesium aren't cheap and will only save moderate amounts as the parts need to be retained. Think fixings. Titanium and aluminium fasteners will save a bit of weight but not huge amounts. Custom "type 22" aircraft wiring loom saves another kilo or so but not cheap at all.
I attended a GSXR1000 dyno day back in 2009/10 with Visordown magazine and there was a fully tricked up Crescent Suzuki built BSB K5 GSXR1000 in attendance , the owner claimed that made 190+ on the Crescent dyno at the tyre, IIRC it made well into 180s on BSDs dyno that particular day...fair play to the chap , it had done some miles in that state of tune, at home, touring europe and on trackdays..
The K5/6 was one of the lightest already, so swapping the battery for li-ion and cast wheels for carbon would save a good 9+ kg against standard. I think that would drop it to 15x Kg against manufacturer listed weight. Thereafter things get expensive...
195 rwhp? Not a chance without significant engine work. 195hp at the flywheel on a Dynojet? Fully believable. My old K6 with a simple remap made between 170-175 rwhp when measured by several different dynos on different days.
195 rwhp? Not a chance without significant engine work. 195hp at the flywheel on a Dynojet? Fully believable. My old K6 with a simple remap made between 170-175 rwhp when measured by several different dynos on different days.
If Wikipedia is to be believed a GSX-R1000 K6 has a wet weight of 201kg
You can loose a good chunk of weight by dumping the original wheels and going carbon fibre, 10 maybe 12kg which best case scenario leaves a further 39kg to hit 150kg...
Exhaust? A full titanium system might save 4 or 5kg so 34kg to go...
To shift another 34kg will be tough, throw the entire rear subframe away and replace with a carbon fibre unit might save another 4 or 5kg so 29kg...
Titanium fasteners and race fairings won't save that much either so I suspect that 150kg weight could be dry, 18 litres of fuel weighs about 13kg plus oil and water could see it down to 150kg?
You can loose a good chunk of weight by dumping the original wheels and going carbon fibre, 10 maybe 12kg which best case scenario leaves a further 39kg to hit 150kg...
Exhaust? A full titanium system might save 4 or 5kg so 34kg to go...
To shift another 34kg will be tough, throw the entire rear subframe away and replace with a carbon fibre unit might save another 4 or 5kg so 29kg...
Titanium fasteners and race fairings won't save that much either so I suspect that 150kg weight could be dry, 18 litres of fuel weighs about 13kg plus oil and water could see it down to 150kg?
Esceptico said:
Why is there such a difference between the measurements at the flywheel compared to rear wheel? When manufacturers quote power which is it (I assume rear wheel)?
https://www.motorcyclenews.com/news/2015/november/mcn-plus-classic-john-robinson---great-powertrain-robbery/Tango13 said:
If Wikipedia is to be believed a GSX-R1000 K6 has a wet weight of 201kg
You can loose a good chunk of weight by dumping the original wheels and going carbon fibre, 10 maybe 12kg which best case scenario leaves a further 39kg to hit 150kg...
Exhaust? A full titanium system might save 4 or 5kg so 34kg to go...
To shift another 34kg will be tough, throw the entire rear subframe away and replace with a carbon fibre unit might save another 4 or 5kg so 29kg...
Titanium fasteners and race fairings won't save that much either so I suspect that 150kg weight could be dry, 18 litres of fuel weighs about 13kg plus oil and water could see it down to 150kg?
Is petrol lighter than water then? 18 litres of water is 18kg. You can loose a good chunk of weight by dumping the original wheels and going carbon fibre, 10 maybe 12kg which best case scenario leaves a further 39kg to hit 150kg...
Exhaust? A full titanium system might save 4 or 5kg so 34kg to go...
To shift another 34kg will be tough, throw the entire rear subframe away and replace with a carbon fibre unit might save another 4 or 5kg so 29kg...
Titanium fasteners and race fairings won't save that much either so I suspect that 150kg weight could be dry, 18 litres of fuel weighs about 13kg plus oil and water could see it down to 150kg?
The Road Crew said:
Pvapour said:
Is petrol lighter than water then?
Yes. I Carry measured weight regularly and also Gerry cans of petrol and they’ve always felt (by volume) to be the same as water, certainly not 30% lighter unless my perceptions are outa whack
te on the net then actually lose the 20kg themselves..Gassing Station | Biker Banter | Top of Page | What's New | My Stuff