Minor mods to my 500R?

Jadonian · 07-14-2004

I just got a '98 500R Ninja as my first bike and I'm very pleased with it. It looks perfect and runs great. I was just wondering if there are any minor adjustments (prefereably cheap ones!) that i can make to the bike to improve performance/HP/asthetics.. anything really. I'm new to the bike world and i was just wondering what changes i should/can make to the stock model to get improvements. Thanks.

Tim- · 07-14-2004

ZX-2R should pop in here in a while and tell you to take off your centerstand.

Teknik · 07-14-2004

stage 1 air filter, about £30
stage 3 air filter, about £80
stage 1/3jet kit, about £88
Aftermarket pipes (2-1) about £300
New screen, about £40-50
Fender elimator kit, $60(ish)

Narcisse91 · 07-14-2004

Drop the front sprocket a tooth and it'll give the bike a bit more kick. Cost is about $13.

Teknik · 07-14-2004

how much do you loose off the top end if you do that?
i am currently getting a top top end of 128mph (thats with a 240lb me on the back thou

)

Narcisse91 · 07-15-2004

I have no idea what the top speed would be. Probably in the 120 or 130 range, but I haven't actually calculated it.

Teknik · 07-15-2004

ahh, i thought you meant that you had done this.

Cale · 07-15-2004

I think you will have about the same top, but at higher rpm.

Tim- · 07-15-2004

Quote:

Originally Posted by Cale

I think you will have about the same top, but at higher rpm.

Well, think about it. If the top speed is their rev limiter, then higher revs would mean that they hit the rev limiter at a slower speed....So a lowered top speed.

Cale · 07-15-2004

He's getting a top of 128mph. It's just at 10,297rpm (limiter is set about 11,200). Stock total ratio in 6th is 5.789. With 15 teeth sprocket at front total ratio will be 6.167. For the same 128mph top speed bike will hit 10,966rpm. This is just before the red zone. Theoretically you are right, but practically you are wrong.

Tim- · 07-15-2004

Quote:

Originally Posted by Cale

He's getting a top of 128mph. It's just at 10,297rpm (limiter is set about 11,200). Stock total ratio in 6th is 5.789. With 15 teeth sprocket at front total ratio will be 6.167. For the same 128mph top speed bike will hit 10,966rpm. This is just before the red zone. Theoretically you are right, but practically you are wrong.

I'm right, if his rev limiter is what's stopping him at top speed.

TrashMonkey · 07-15-2004

DELETED

Tim- · 07-15-2004

Quote:

Originally Posted by TrashMonkey

okay all this math is giving me a headache lol

Jadonian · 07-16-2004

how in the world do you guys figure that stuff out?

Tim- · 07-16-2004

Quote:

Originally Posted by Jadonian

how in the world do you guys figure that stuff out?

Well, i didn't figure any of that out...Only Cale. So, the question is, how did Cale figure that stuff out? Probably google, or from his own personal knowledge.

Cale · 07-16-2004

You cannot find it on google. Bat he's not hiiting his rev limiter at 128mph. EX 500 cannot hit limiter in 6th (yes but downhill). How I get it. In owners manual you can find something, you need to know perimetar of stock rear tire(you can find on google or take a measuring tape) and to do some calculation.

Narcisse91 · 07-16-2004

Quote:

Originally Posted by Teknik

ahh, i thought you meant that you had done this.

I have, but why the hell would I be going 120 or 130mph?

Teknik · 07-16-2004

i dont think i have a rev limiter tbh :/ (i have taken it up to 12k before when i got distracted while riding) however my top end of 127 is at about 10.5k revs

and i think its more wind resistance which is stopping me going any faster.

Narcisse91 · 07-16-2004

Quote:

Originally Posted by Jadonian

how in the world do you guys figure that stuff out?

At any given speed, your wheel is going to be moving at a specific RPM. You need to know the overall diameter of the tire for that. Once you know the speed the wheel is moving, you can calculate RPM based on the gear ratio and sprocket ratio. It works the other way around as well. If you know the engine speed, you can calculate the wheel speed, and then using the diameter of the wheel, calculate your road speed. In a specific gear, the ratio between engine speed and road speed is a constant.

Same works for cars, just use each specific gear ratio and the final drive.

Teknik · 07-16-2004

Quote:

Originally Posted by Narcisse91

Quote:

Originally Posted by Teknik

ahh, i thought you meant that you had done this.

I have, but why the hell would I be going 120 or 130mph?

Why not, in america i thought your roads were straighter than ours, a straight road is both an invitation and a challange.

07-14-2004	#1 (permalink)
Jadonian Newbie Join Date: Jul 2004 Location: kansas Posts: 15	Minor mods to my 500R? I just got a '98 500R Ninja as my first bike and I'm very pleased with it. It looks perfect and runs great. I was just wondering if there are any minor adjustments (prefereably cheap ones!) that i can make to the bike to improve performance/HP/asthetics.. anything really. I'm new to the bike world and i was just wondering what changes i should/can make to the stock model to get improvements. Thanks. __________________ -Jadonian '98 500R straight stock.

07-14-2004	#2 (permalink)
Tim- Third Gear And Gaining BTK Intermediate Join Date: May 2004 Location: Mountain Home, Arkansas Posts: 133	ZX-2R should pop in here in a while and tell you to take off your centerstand. __________________ It's not a matter of age. It's a matter of maturity.

07-14-2004	#3 (permalink)
Teknik Made It To Second Gear BTK Beginner Join Date: Jan 2004 Location: UK Posts: 78	stage 1 air filter, about £30 stage 3 air filter, about £80 stage 1/3jet kit, about £88 Aftermarket pipes (2-1) about £300 New screen, about £40-50 Fender elimator kit, $60(ish) __________________ Mike '97 Gpz 500 s D3 (Ex500 D3) Black/Silver Learn from your mistakes, but learn from other peoples as well, its cheaper.

07-14-2004	#5 (permalink)
Teknik Made It To Second Gear BTK Beginner Join Date: Jan 2004 Location: UK Posts: 78	how much do you loose off the top end if you do that? i am currently getting a top top end of 128mph (thats with a 240lb me on the back thou ) __________________ Mike '97 Gpz 500 s D3 (Ex500 D3) Black/Silver Learn from your mistakes, but learn from other peoples as well, its cheaper.

07-15-2004	#7 (permalink)
Teknik Made It To Second Gear BTK Beginner Join Date: Jan 2004 Location: UK Posts: 78	ahh, i thought you meant that you had done this. __________________ Mike '97 Gpz 500 s D3 (Ex500 D3) Black/Silver Learn from your mistakes, but learn from other peoples as well, its cheaper.

07-14-2004	#4 (permalink)
Narcisse91 Foil Inspector BTK Beginner Join Date: May 2004 Location: Webster, NY Posts: 102	Drop the front sprocket a tooth and it'll give the bike a bit more kick. Cost is about $13.

07-15-2004	#6 (permalink)
Narcisse91 Foil Inspector BTK Beginner Join Date: May 2004 Location: Webster, NY Posts: 102	I have no idea what the top speed would be. Probably in the 120 or 130 range, but I haven't actually calculated it.

07-15-2004	#8 (permalink)
Cale Turtle Wax Taster BTK Intermediate Join Date: Dec 2003 Location: Ottawa, Canada Posts: 154	I think you will have about the same top, but at higher rpm.

07-15-2004	#10 (permalink)
Cale Turtle Wax Taster BTK Intermediate Join Date: Dec 2003 Location: Ottawa, Canada Posts: 154	He's getting a top of 128mph. It's just at 10,297rpm (limiter is set about 11,200). Stock total ratio in 6th is 5.789. With 15 teeth sprocket at front total ratio will be 6.167. For the same 128mph top speed bike will hit 10,966rpm. This is just before the red zone. Theoretically you are right, but practically you are wrong.

07-15-2004	#12 (permalink)
TrashMonkey Top Gear Full Throttle BTK Expert Join Date: Jun 2004 Posts: 308	DELETED

07-16-2004	#14 (permalink)
Jadonian Newbie Join Date: Jul 2004 Location: kansas Posts: 15	? how in the world do you guys figure that stuff out? __________________ -Jadonian '98 500R straight stock.

07-16-2004	#16 (permalink)
Cale Turtle Wax Taster BTK Intermediate Join Date: Dec 2003 Location: Ottawa, Canada Posts: 154	You cannot find it on google. Bat he's not hiiting his rev limiter at 128mph. EX 500 cannot hit limiter in 6th (yes but downhill). How I get it. In owners manual you can find something, you need to know perimetar of stock rear tire(you can find on google or take a measuring tape) and to do some calculation.

07-16-2004	#18 (permalink)
Teknik Made It To Second Gear BTK Beginner Join Date: Jan 2004 Location: UK Posts: 78	i dont think i have a rev limiter tbh :/ (i have taken it up to 12k before when i got distracted while riding) however my top end of 127 is at about 10.5k revs and i think its more wind resistance which is stopping me going any faster. __________________ Mike '97 Gpz 500 s D3 (Ex500 D3) Black/Silver Learn from your mistakes, but learn from other peoples as well, its cheaper.

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