Haybusa Parts and Service Member Support
« previous next »
Pages: [1]   Go Down

Author Topic: Identifying fuel injectors on K8  (Read 3818 times)

Offline neillsun

  • Apprentice Post Whore
  • **
  • Posts: 6
Identifying fuel injectors on K8
« on: February 22, 2010, 03:38:15 AM »
I have two K8 motors here, one has just been rebuilt after a fire. As a result we had to completely strip everything down to clean. Unfortunately I didn't check to see if the primary and secondary injectors are different.

They are different - one set has WC17 and the other WC18. The injectors on the other K8 motor are ALL WD01.

Please can somebody help me with this? Which would be the better combination of injectors to run?

BTW The motors are for circuit racing cars, which currently have Bazzaz systems, but will probably be converted to use ECUEditor in the near future.

Best regards,
Neill.
Logged

Offline smithabusa

  • Boost By Smith
  • Site Supporter
  • Post Apocalyptic Whore
  • ****
  • Posts: 15353
  • Gender: Male
    • Boost By Smith
Re: Identifying fuel injectors on K8
« Reply #1 on: February 22, 2010, 07:53:18 AM »
ive heard many times uppers and lower are same size at about 280cc, same as gen 1, but different injector obviously
Logged
Official Site Supporter

www.boostbysmith.com

Offline sportbikeryder

  • OFF TOPIC
  • Universal Post Whore
  • **********
  • Posts: 7352
  • Gender: Male
Re: Identifying fuel injectors on K8
« Reply #2 on: February 22, 2010, 08:05:57 AM »
If they are anything like previous Kehin injectors, teh numbers do not relata to the injector characteristics at all.

If you are running stock engines, run the stock injectors, no need to change at all. Even for highly modified (other than big power turbo or dry nitrous) you do not need to upgrade.
Logged
Any day on a motorcycle like this that ends just needing parts and labor is a good day.
4.82, 158.67mph 1/8th mile 7.350, 200.32mph 1/4 mile Riding

4.392, 176.79mph 1/8th mile  6.610, 228.15mph 1/4 mile Tuning

Offline neillsun

  • Apprentice Post Whore
  • **
  • Posts: 6
Re: Identifying fuel injectors on K8
« Reply #3 on: February 22, 2010, 08:26:47 AM »
Thanks to you both... I'll pop them in and see what happens!

The motors are naturally aspirated, but with modified cams, crank, etc and are 1450cc.

N.
Logged

Offline smithabusa

  • Boost By Smith
  • Site Supporter
  • Post Apocalyptic Whore
  • ****
  • Posts: 15353
  • Gender: Male
    • Boost By Smith
Re: Identifying fuel injectors on K8
« Reply #4 on: February 22, 2010, 10:22:24 AM »
ive made 280 hp with stock injectors, and there is now much more duty cycle left with ecu editor, over 300 hp shouldn't be any issue
Logged
Official Site Supporter

www.boostbysmith.com

Offline neillsun

  • Apprentice Post Whore
  • **
  • Posts: 6
Re: Identifying fuel injectors on K8
« Reply #5 on: February 22, 2010, 12:45:17 PM »
I think we're on around 250... but we haven't had the cars on a dyno, so I am not 100% sure. I am thinking about running the motors in and self-mapping them with the Bazzaz, then dynoing the car with the Bazzaz, then redynoing with ECU Editor to do a back-to-back.

I'll post the results. I am hoping to do the tests within the next 2 weeks... but I may have to wait until after the next race weekend due to time constraints (I have 5 cars running in the same series)

Thanks,
N.
Logged

Offline midnight black man

  • Rider
  • ***
  • Posts: 278
  • Gender: Male
  • Where am I?
Re: Identifying fuel injectors on K8
« Reply #6 on: February 23, 2010, 09:27:22 AM »
all 8 are the same at 280 ml/min...also same with gsxr 1000...
Logged
frankly my dear,i don't give a damn...

Offline neillsun

  • Apprentice Post Whore
  • **
  • Posts: 6
Re: Identifying fuel injectors on K8
« Reply #7 on: February 23, 2010, 10:54:51 PM »
Thanks.

Put it all together, and all working fine!
Logged
Pages: [1]   Go Up
« previous next »