Author Topic: nitrous kit on a gs 500  (Read 603 times)

Offline jackinacabin

  • Trade Count: (0)
  • AMA Supersport Racer
  • **
  • Posts: 82
  • Karma: +0/-0
nitrous kit on a gs 500
« on: June 06, 2019, 07:33:03 PM »
Well  I like my gs  because its lightish and reliable . Disability means i just sold my fazer 600 because it was too heavy   and i miss the power ... so wondering id anyone has fitted  a nitrous kit to these reliable dobbins ... after a bit or a read it seems they can be used safely without damaging engines, another 15hp or so would really liven  the suzuki  ... thoughts please

Offline mr72

  • Trade Count: (0)
  • MotoGP Racer
  • ******
  • Posts: 2132
  • Karma: +34/-0
  • Musician, Engineer, Sci-Fi Author
    • Josh's Books
Re: nitrous kit on a gs 500
« Reply #1 on: June 06, 2019, 08:22:33 PM »
Projects to make that much more power in a GS engine wind up breaking the crank. There's a racer who worked out getting a cut-down GSXR head with 2x as many valves onto a GS500 and was making power in the 60+ range, and in racetrack distances wound up going through cranks.

You want 70hp in a bike the size and weight of a GS500 then you need a SV650. Or more money, MT-07. You can probably sell the GS and put $500 with that and get an SV650 of similar age and condition. That's by far the best way to get more power in a similar chassis.

Offline IdaSuzi

  • Trade Count: (0)
  • Local Club Racer
  • *
  • Posts: 39
  • Karma: +3/-0
  • Broke College Student
Re: nitrous kit on a gs 500
« Reply #2 on: June 07, 2019, 12:28:05 AM »
I'm 100% with mr72 on this one. These engines weren't designed for the pressure that comes with NOS and forced induction. It's hard on the crank, rings, rod bearings, and can make a lot of heat for the poor air cooled twin.

Get a larger twin to keep the weight down like the sv650 mentioned, or MT-07, ninja 650 etc
1998 RM125
1995 RM250
1999 Yamaha Banshee (Kind of a bike???)
1993 DR350
2008 GS500F naked conversion, Kat 600 shock, Yoshi Slip On, Progressive Springs, 20/62.5/140 rejet, Fenderectomy, LED Front and Rear Signals

Offline qcbaker

  • Trade Count: (0)
  • World Supersport Racer
  • *****
  • Posts: 1113
  • Karma: +13/-0
Re: nitrous kit on a gs 500
« Reply #3 on: June 07, 2019, 02:11:55 PM »
Another option: rather than worrying about increasing the power of the engine, why not choose to apply the power it already makes in a different way? Maybe try out a smaller front (or larger rear) sprocket? Maybe that will give the bike the feeling you want.
« Last Edit: June 07, 2019, 02:12:40 PM by qcbaker »

Offline jackinacabin

  • Trade Count: (0)
  • AMA Supersport Racer
  • **
  • Posts: 82
  • Karma: +0/-0
Re: nitrous kit on a gs 500
« Reply #4 on: June 07, 2019, 11:33:06 PM »
After  reading futhur and listening here , I agree , nitrous is not  a great idea .... and i want the highish cruising speed so re-gearing is not what i am looking for either ... Perhaps an sv650 is worth a trial ride and then wait until a cheap one comes along locally should it work .. thanks for your advices