Evenin
Picked up a set of individual throttle bodies that came with 4 Weber IWP042 injectors. T'internet states these will flow 240-ish cc per min and
are stable up to 5 bar (taking them up to 300-ish cc per min).
I'm fitting the TB's to a standard C20XE... going by the various reports out there, I should expect the red-top to make around 195 bhp with
a set of TB's.
Can anyone advise if these injectors are man enough for the job?
Cheers
This should help link
Cheers BVT! That calculator suggests mine won't do... I need 320cc per min injectors.
I'm using Bosch white giants which do 375cc
Standard XE won't do 195bhp with throttle bodies more like 175-180bhp run your fuel pressure at 3.5bar and those injectors will be fine
Stan Weiss has put up injector flow tables here which are the most comprehensive I have found on the web.
Here. They also suggest that your injectors are not up to the job. 360ml/min will give about
52bhp per injector and should be about right. He lists your injectors as good for 33.7 BHP each at 80% duty cycle for engine with a BFSC of .52
[Edited on 26/10/13 by Dusty]
Depends how far into the duty cycle you want to go....they will be pretty much flat out with no headroom at all.
volvo b230ft .... 330 cc/min on a 4 cylinder , about right and on 3 bar too.
saab are rate a bit higher on the 2.3 versions...
peak and hold tho , so youll need resistors ..
When I made up my injection system I used Graham Bell’s calculations.
I also knocked up a system to check flow rates of the injectors at a given pressure.
Accepting that yours do what they recon they do and the HP figures are as silky suggests my calcs agree with his for what it is worth.
quote:
Originally posted by silky16v
Standard XE won't do 195bhp with throttle bodies more like 175-180bhp run your fuel pressure at 3.5bar and those injectors will be fine