Date: 15-06-24  Time: 12:49 pm

Author Topic: making the bike faster  (Read 1251 times)

benzimo_

  • Cager in Training
  • Posts: 10
    • Main bike:
      FZS600 02-03
    • - FZS600 03
    • View Profile
making the bike faster
« on: 21 March 2024, 11:10:29 am »
Hello everybody, unsure how to use this site so hopefully i’m doing it right but ported the cylinder heads out (lots of imperfections surprisingly when cast) and milled it so that 99 octane fuel can now be used to my advantage for extra power on the 600 (engine was already out replacing the 2nd gear shift fork)  however this does mean regular fuel will cause detonation so premium only from now on yay

Gnasher

  • Foc-u Brake Doctor
  • GP Hero
  • ******
  • Posts: 5,611
    • Main bike:
      FZS600 98-99
    • - ZX10R, XJR1300, X10, GSF1000GT
    • View Profile
Re: making the bike faster
« Reply #1 on: 21 March 2024, 02:42:54 pm »
I'm sorry to say, you're/you have wasted your time and money fella.

Porting is for 2 stokes, gas flowing is for 4 stokes, just gas flowing an FZS600 head will get you almost nothing.  The bike can already use 99 or 100 octane fuel as standard, gains err almost nothing.

These engines are already in a high state of tune as standard, they require serious (cams, pistons, over bore, carbs etc) engine work to get any meaningful gains, all possible but very expensive and not worth the gains.  Biggest up grades to a standard engine which will give you better mid range is fit a free flow air filter and an open end can, nothing else needed.   
Later

BBROWN1664

  • Administrator
  • GP Hero
  • ******
  • Posts: 13,142
  • Should get out more!
    • Main bike:
      FZS600 00-01
    • - Tracer 900
    • View Profile
    • My website
Re: making the bike faster
« Reply #2 on: 21 March 2024, 06:37:27 pm »
Easiest way to make a bike faster is for the rider to eat less pies.
Another ex-Fazer rider that is a foccer again

unfazed

  • GP Hero
  • ******
  • Posts: 5,336
  • Never ride faster than your guardian angel can fly
    • Main bike:
      FZS600 02-03
    • - FZS1000 05-06, Serow 2000
    • View Profile
Re: making the bike faster
« Reply #3 on: 21 March 2024, 06:57:01 pm »
I presume you mean gas flowing, Smoothing of cast rough intakes ports on the carburettor engines reduces atomisation of the fuels and can lead to unburnt fuel which then reduces power. Smoothing the exhaust ports expel the burnt fuel as fast as possible is a better option. Not worth the effort on the FZS600 as the engine is in a highish state of tune as it is. You would most likely end up with less power engine. Reprofiling the cams may be a better option but is it worth the cost for a small gain.

fazersharp

  • GP Hero
  • ******
  • Posts: 6,935
  • 10 stone Racing Snake
    • Main bike:
      FZS600 98-99
    • View Profile
Re: making the bike faster
« Reply #4 on: 24 March 2024, 10:55:22 pm »
If you want to make the 600 go faster then learn how to ride it --if you want to go faster in a straight line then get the 1000 but be prepared for the 600 to be all over you on the bends 
I don't do rain or threat there of. dry rider only with no shame.

wraith600

  • Club Racer
  • ****
  • Posts: 287
    • Main bike:
      FZS600 98-99
    • View Profile
Re: making the bike faster
« Reply #5 on: 02 June 2024, 04:26:17 am »
don't go down this rabbit hole unless you are prepared for a lot of work money and some disappointment   :'( 2000 rsv mille forks and swing arm with RSVR magnesium wheels Ohlins remote reservoir rear shock , R1 2003 rear subframe and Harris single seat unit , rear sets , custom fairing mounts to lower the fairing 40mm and push forward 60mm for clearance on the clip-ons below the top yoke , tyres 120/70 +190/55 this meant a 10mm offset front sprocket and modified cover,  with a modified airbox K&N filter i had 95BHP at the wheel also down to 190kg wet bike is off the road again for more up grades so should be lighter and have a bit moor ommph if i ever get it done  :'(
« Last Edit: 02 June 2024, 05:12:04 am by wraith600 »
follow me and ile show you were to crash

http://foc-u.co.uk/index.php/topic,484.msg2583.html#msg2583