Injector questions

[Evan12]

On a stock 87' 325is. what size are the injectors? i heard they are about 14.5lb injectors. is this correct? my question is, if i made the jump to 17lb or 19lb injectors with light mods (intake, maf conversion, and chip) would there be any harm? which would you reccomend?

[Kershaw]

all 6 cylinder e30s are 14.5lb injectors.

do whatever you can afford. but make sure you take care of maintenance before go spending $600 on a maf+chip conversion.

when was the last time your timing belt was done?

[MR 325]

17lb is the way to go on these engines.

[bmw325csi]

Im going 19lb as soon as my injector rebuild kit comes in the mail. Ill let you know as soon as I get em in. I also have a Maf kit, intake and tune.

[bmw325csi]

17lb is the way to go on these engines.

What car comes with these

[Kershaw]

17lb is the way to go on these engines.

17.5 you mean?

[tinkerputzer]

17.5 you mean?

I think he's referring to 17 lb injectors found on M50's.

I installed a set of 0-280-150-415 (from an M50) on my otherwise stock engine with factory chip and you can tell there is a bit of a difference.

[Morrison]

You can also get 17 lb Bosch design III (plastic bodied) injectors from a 1999 Mercury Cougar V6 I've recently found out.

[NigelStu]

I installed a set of 0-280-150-415 (from an M50) on my otherwise stock engine with factory chip and you can tell there is a bit of a difference.

Do you have dyno data before and after?

Or at least 0-60 or 1/4 mile times?

[Evan12]

Im going 19lb as soon as my injector rebuild kit comes in the mail. Ill let you know as soon as I get em in. I also have a Maf kit, intake and tune.

thank you thatd be great.

[Evan12]

all 6 cylinder e30s are 14.5lb injectors.

do whatever you can afford. but make sure you take care of maintenance before go spending $600 on a maf+chip conversion.

when was the last time your timing belt was done?

recently. as well as all my hoses etc. this wont be for a while, i am just doinf some research before i spend the money.

[nando]

all 6 cylinder e30s are 14.5lb injectors.

etas are 19#, B25s are 14.5#. don't know about setas.

[jlevie]

Unless you've done something to significantly increase the mass flow through the engine, larger injectors aren't needed for an M20B25. If the fuel system is working correctly and the injectors are clean and flow at their design rate the engine can be tuned for a A/F ratio of 12.8:1, which is as rich as you'd want to go.

[Kershaw]

^ jlevie dropping the knowledge again.

etas are 19#

really? :o

[nando]

yes, 19# low impedance