Injector flow?

[SpidersWeb]

ehehe I would. 390cc 450cc 490cc 550cc are standard mitsi injector sizes, I saw a forum discussing the injectors which mentioned 300cc, this making it approximately 2/3 the size of 390cc which mentioned in an earlier post was the approximate difference between Jap/Aussie Starions.

So as far as guesses go, its probably not far off. VR4 had 450cc I beleive, and this would of been an upgrade along with DOHC, so go one size down, and viola 390cc.

Ill email Mitsi NZ and ask. They answered a lot of my Starion questions in the past.

[Cookiemonster]

Starion only has 2 injectors remember. They are 2 big bastards... a lot bigger than 390cc.

[NXTIME]

4 x vr4 injectors then divide that by the number of injectors that a Starion has.

[SpidersWeb]

This is true cookie, possibly 450 or 490's then

Will email mitsi and get a real answer, not more guesses though :)

[StarionChef]

Flappa, your old man tested my pairs, thats how I know :)

Greg, I told you a few days after I bought them off you.

I also bought a pair of "grey top" Jb injectors, but there flow was about 40% less that the correct JB inj's, but they make great templates for building the manifold.

[David]

Standard JB Injectors?

Well, I'm just guessing, but if I lick my finger and stick my finger in the air
within the vicinity of a JB injector, I'd guess....

420cc per minute @ 80% Duty cycle, at 3000 pulses per second, with
3 bar of pressure.

Probably the equivalent of some "800cc" injector...

Anyway, I'm just guessing... If you want to know for certain, pull them
out and send a pair to Coltspeed. He can test them for you, then you will
know what each is capable of, and it's flow rate. I don't know what he
charges for the service.

Or you can build a flow bench, if you know what you are doing... And
never ever use fuel for flow testing... You need some special stuff that
isn't flammable.

It's difficult to tell a Starion injector flow rate as they all vary and none of
them have markings.

But other than that, a standard JB injector has a pretty high flow rate.

Regards
David

[ProZac]

Dont happen to have an details on the impedance and switching speeds of them do you? :) Rekon it would be a good idea to use 4 of them for an MPI setup?

[StarionChef]

Now there's a good idea

[ProZac]

I do know a fellow with 6 injectors out of late model jap import intercooled starions.. should flow quite a bit... but how well can they be controlled?

[WANTSOM]

black top ones = apprx 900. Am I right

I always did remember chefman.

[StarionChef]

I'm using 4 jbs on my quad setup with an early wolf 3d, the ecu side isnt sorted/ running yet, but I will post when its running to my satisfaction.
some say the inj's wont idle, others say they will be fine

[ProZac]

If early JB ones are 900cc, then i'd seriously doubt you'll get a decent idle with an early wolf3d....

but i dont think they would flow that much?

hell, i rekon they're all so old and crapped out, that the only way you'll find the flow rate of your injectors is to have them flow-tested :D

[WANTSOM]

But hey chef, its a fast idle at 6000 rpm in 2 and 3rd aint it

[StarionChef]

yep, get all 4 tested befor you use them

What Greg? whats wrong with boost at idle :)

[pcuser51]

:D Just to through a spanner in the works ,does any body know if there
is any differance in flow rate between JA and JB