Injector flow ratings
 

Ok
I give up I cannot find the pressure/ flow ratings for the standard 3.2 Carrera injectors anywhere. Bosch part number is 0-280-150-158.
Any help is appreciated.

Chris

I just got back my injectors from Marren Motorsports. Here are the results-

http://members.rennlist.com/jdaniel/injtest.jpg

These are stock Bosch units from an '87 911.

------------------
Dan Tolley
1987 911 Coupe
http://www.cheaterswayside.com/911/gallery.asp?sort=0&userid=294

[This message has been edited by JDaniel (edited 04-29-2001).]

Thanks for the info this helps. Any idea of the fuel pressure specs for the 3.2 ?

Chris

Hope this helps. These are the specs if you are measuring at the fuel rail (not really injector rates). Just fuel pressure...

Engine off----- 2.5 bar (36 psi)
Engine running- 2.0 bar (29 psi)
Engine running,
vacuum hose removed
from pressure reg.- 2.3-2.7 bar (33-39 psi)

Are you testing the fuel system pressure?

------------------
Dan Tolley
1987 911 Coupe
http://www.cheaterswayside.com/911/gallery.asp?sort=0&userid=294

[This message has been edited by JDaniel (edited 04-29-2001).]

Of course the amount of fuel changes as pressure changes. If my memory serves me correctly from my Bosch days, I think fuel rates are measured @ 45 PSI. I have not been able to find a link to the fuel rates for all Bosch injectors. Anyone know of a link so that we can find flow rates for FI??

Here is a link that lists a fair number of injectors:

http://www.autospeed.com/A_0102/P_2/article.html

You are also correct in that capacity is normally listed at 45 psi. The test results for the 0-280-150-158 injectors posted were based on a very short pulse time. I am looking for ratings as per the above link if anyone has them.

Thanks
Chris

This is also an interesting general discussion on Injectors which touches on the testing procedures.

http://modigliani.brandx.net/user/toeknee/injectioninfo.htm