325i Throttle Bodies and Fuel Injection
325i Throttle Bodies and Fuel Injection
Author
Discussion

Jetl3on

Original Poster:

1,409 posts

225 months

Wednesday 30th April 2008
quotequote all
Morning all,

I own an E30 Based M20 325i and one of the injectors has a broken plastic cap on the end. I could easily replace it, but this seems like a good opportunity to be a little imaginative. I have been reading that the M50 Injectors are a common upgrade as they use 4 pin holes to atomise the spray pattern, instead of the single pin hole of the original, making the whole process alot more efficient? Anyone know a company that I can speak to about the whole thing?

In addition I have replaced my throttle body for a refurbished version, and have been been reading that a Bigger throttle body kit will improve performance, like Individual Throttle Bodies and such like.

Cant find any information on the net about this or anywhere that deals with BMW`s and specialises in Fuel Injection.

Anyone have any information will be appreciated.

regards

Jet

Road_Terrorist

5,591 posts

271 months

Wednesday 30th April 2008
quotequote all
A larger throttle body will help the top end breathing if you have done the usual other modifications already like a cam, intake, exhaust etc. But simply bolting on a larger throttle body by itself is unlikely to make a lot of difference to an otherwise standard engine.

sniff petrol

13,125 posts

241 months

Wednesday 30th April 2008
quotequote all
Jetl3on said:
Morning all,

I own an E30 Based M20 325i and one of the injectors has a broken plastic cap on the end. I could easily replace it, but this seems like a good opportunity to be a little imaginative. I have been reading that the M50 Injectors are a common upgrade as they use 4 pin holes to atomise the spray pattern, instead of the single pin hole of the original, making the whole process alot more efficient? Anyone know a company that I can speak to about the whole thing?

In addition I have replaced my throttle body for a refurbished version, and have been been reading that a Bigger throttle body kit will improve performance, like Individual Throttle Bodies and such like.

Cant find any information on the net about this or anywhere that deals with BMW`s and specialises in Fuel Injection.

Anyone have any information will be appreciated.

regards

Jet
I have a set of injectors of my old E36 320i (engine code M50B20) you're welcome to them for £20
Will try and get some pictures for you to compare them.

The engine ran fine, the car was only broken up due to rust and a broken windscreen making it an MOT failure.

Jetl3on

Original Poster:

1,409 posts

225 months

Thursday 1st May 2008
quotequote all
sniff petrol said:
Jetl3on said:
Morning all,

I own an E30 Based M20 325i and one of the injectors has a broken plastic cap on the end. I could easily replace it, but this seems like a good opportunity to be a little imaginative. I have been reading that the M50 Injectors are a common upgrade as they use 4 pin holes to atomise the spray pattern, instead of the single pin hole of the original, making the whole process alot more efficient? Anyone know a company that I can speak to about the whole thing?

In addition I have replaced my throttle body for a refurbished version, and have been been reading that a Bigger throttle body kit will improve performance, like Individual Throttle Bodies and such like.

Cant find any information on the net about this or anywhere that deals with BMW`s and specialises in Fuel Injection.

Anyone have any information will be appreciated.

regards

Jet
I have a set of injectors of my old E36 320i (engine code M50B20) you're welcome to them for £20
Will try and get some pictures for you to compare them.

The engine ran fine, the car was only broken up due to rust and a broken windscreen making it an MOT failure.
Hi,

I have been warned that it is very important to ensure the impedance is the same as the standard versions or I will have to change the fuel regulator? I need to verify this information and if the part numbers mean I can do a straight swap, its an offer I will certainly consider. Just have to find that elusive injection guru who can give me fact from theory.

sniff petrol

13,125 posts

241 months

Friday 2nd May 2008
quotequote all
Been round the lock-up to check and I don't have the injectors actually sorry. Must have left them on the car when it went for scrap.