Jump to content


Welcome to Ultimate Subaru Message Board, my lurker friend!

Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.

We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!
  • Say hello and join the conversation
  • Subscribe to topics and forums to get automatic updates
  • Get your own profile and make new friends
  • Classifieds with all sorts of Subaru goodies
  • Photo hosting in our gallery
  • Meet other cool people with cool cars
Seriously, what are you waiting for? Make your life more fulfilling and join today! You and your Subaru won't regret it, we guarantee** it.

* The joy of participation and being generally awesome constitutes winning
** Not an actual guarantee, but seriously, you probably won't regret it!

Serving the Subaru Community since May 18th, 1998!

Guest Message by DevFuse
 

Photo
- - - - -

Injector cleaning


  • Please log in to reply
4 replies to this topic

#1 Syonyk

Syonyk

    Subaru Nut

  • Members
  • 645 posts
  • Ames, IA

Posted 14 December 2005 - 12:02 PM

Has anyone sent their fuel injector(s) in for a professional cleaning? The ultrasonic reverse flow flush type cleaning, not just sitting in some stuff. If so, what kind of difference did you see afterwards in terms of power/fuel economy?

I know over in the RX-7 world, injector cleaning can make a huge difference, but I haven't seen it discussed much here (and the injectors are the same age as 2nd gen RX-7 injectors, for the most part).

-=Russ=-

#2 D-Cal

D-Cal

    USMB Regular

  • Members
  • PipPipPip
  • 91 posts
  • Edmonton

Posted 14 December 2005 - 12:12 PM

RC Engineering is one of the best places, and I have seen 10-20% flow improvements listed on the spec sheet that comes back with the injectors.

Aside from low flow, dirty injectors suffer from uneven flow which is even more dangerous. If you have 3 injectors flowing normally and one signifigantly lower, it will lean out that cylinder and potentially cause massive damage. Holed piston, damaged valves & seats, turbine damage, etc. The only way to know this was going on would be to have an EGT probe in each runner. Most people only use one in the hottest runner.

#3 soobscript

soobscript

    needs more time

  • Members
  • 704 posts
  • Columbus, OH

Posted 14 December 2005 - 12:16 PM

I had mine cleaned by RC Engineering in CA. Small shop, very good, pioneers in the field. Others have used them too. Cost is about $25 per injector. They test before and after. Mine showed better flow, pattern, and uniformity. A search will help you. The link in my sig has pics of the test sheet I got. If you next-day ship them, you can have them back in 3 days. I can't really comment on performance improvements since I did so much other stuff at the same time and haven't been above 2nd gear or in boost yet.
http://www.rceng.com/Default.htm

--Ed

#4 tizzle

tizzle

    Subaru Nut

  • Members
  • 606 posts
  • Bellingham

Posted 14 December 2005 - 07:40 PM

I would reccomend rc engineering. Check the last post on this thread for my results, and photo comparison.

http://www.ultimates...=rc engineering

#5 Hank Roberts

Hank Roberts

    Eat, Live, Breath Subaru

  • Members
  • 342 posts

Posted 15 December 2005 - 07:28 PM

Any thoughts/advice on a SPFI (1988 GL, not a turbo)?

Just had a rebuilt engine (done by CCRinc) put in; wondering what else there is to do and how I'd know. No, I don't know much about Subarus yet.




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users