390SE injector flow rates

[ed_crouch]

Hi all,

I wonder if one of the engine / efi gurus might be able to help me?

I got an ASNU sheet for my car, and it shows that after cleaning the injectors do 94-95 at 2.5 bar........

94-95 what?

I guess this is flow rate in CC/minute?

Can anyone confirm/deny this? Gathering information to start setting the MS2 ecu up.

Ta.

Ed.

[ed_crouch]

http://users.erols.com/srweiss/tableifc.htm

Well, that seems to suggest that they ought to be flowing 190cc/min @ 3 bar - this seems incongruous with 95 @ 2.5bar.

Anyone know the units of that 94-95 figure are?

I guess I could just use the on paper figure....

[rev-erend]

Ed,

190cc limits you to about 250 ~ 260 bhp .. not really what you want to be starting with for your new MS 2 or 3 !

(see injectors and fuel supply on left hand index)
http://www.megamanual.com/index.html

Edited by rev-erend on Thursday 4th February 21:05

[ed_crouch]

Hi Rev,

Frankly 250 - 260 would do me fine to start with. It makes 227 at the moment and if the MS-2 unlocked another 10BHP up top and some more torque I'd be happy; I'm not building a monster just yet! The main reason for doing it is to get the fuelling somewhere near correct across the rev and load range - at the moment its idling hot at 13AFR (11AFR cold!) and then runs out of juice at the top end... Also want to eliminate the stty old distributor - theres several degrees of play in the shaft according to my timing light. Fits the bearings like a dick in a sleeve.

They're boggo injectors, but if I happened upon a set of firehoses later, that would also be fine...

[tempus]

Ed,the figures you have been given are explained here, http://users.erols.com/srweiss/tableifc.htm#ACCEL click on the make of injector and play.

[Wedg1e]

I use a slightly-uprated set of injectors, 214cc/min I think. Have plenty of the standard-spec ones spare