Fuel Injectors

Alex(Tenerife)

Alex(Tenerife)

True Classic
I am thinking of replacing/upgrading the injectors in my UT powered X.

I am sure a while ago I found a spreadsheet online of bosch fuel injectors, and on this you could look up fitting type, electrical and fuel, resistance and flow rate. This let you find something similar.
However I have lost my copy of this and can't find anything similar online any more.
Does anyone have a copy of this or something similar?

For info what I believe my injectors are is:
280150708
14.5 ohm
165cc

my ideal would be about 190-200 cc and otherwise exactly the same. My thought is I am running at increaased fuel pressure to compensate for increased flow and boost. If I can increase the injectors a bit I can lower the fuel pressure a bit and keep the fueling the same.

Any ideas?
 
Have you tried looking at the Mega Squirt site. I know when I converted my 79 to Mega Squirt they had the information. Start there.

TonyK.

Grimsby Ontario Canada.
 
I have not searched for mega squirt for a while. Turns out you need to filter the results quite carefully. o_O

Thanks I will see what I can find on this search.
 
Alex(Tenerife) said:
I am thinking of replacing/upgrading the injectors in my UT powered X.

I am sure a while ago I found a spreadsheet online of bosch fuel injectors, and on this you could look up fitting type, electrical and fuel, resistance and flow rate. This let you find something similar.
However I have lost my copy of this and can't find anything similar online any more.
Does anyone have a copy of this or something similar?

For info what I believe my injectors are is:
280150708
14.5 ohm
165cc

my ideal would be about 190-200 cc and otherwise exactly the same. My thought is I am running at increaased fuel pressure to compensate for increased flow and boost. If I can increase the injectors a bit I can lower the fuel pressure a bit and keep the fueling the same.

Any ideas?
Click to expand...
Look in the turbo thread, there is a way to rebuild the intake runners to accept different injectors. It is hard or even impossible to find injectors with hoses.
 

Attachments

I'd have to dig through some old materials to find those data sheets for you. But I recall learning that the stock UT injectors actually have a LESSER flow rate than the stock X1/9 (USA spec) ones. So just swapping to stock US spec X1/9 injectors would be a mild upgrade. However there's a couple of better solutions. Look back through that "turbo" thread - somewhere in it I gave the specific part numbers. Injectors for some older BMW "5 series" (original Bosch) are a direct fit on the X/UT systems and have about 30% more flow than the stock X1/9 ones. Plus there's two choices available from another company (non-Bosch) for even greater flow that are also a direct fit on these systems. All three do not require any mods or adapters and were discussed before, but if you don't find it let me know and I'll start digging through my huge mess of materials. :)
 
Alex(Tenerife) said:
I am thinking of replacing/upgrading the injectors in my UT powered X.

I am sure a while ago I found a spreadsheet online of bosch fuel injectors, and on this you could look up fitting type, electrical and fuel, resistance and flow rate. This let you find something similar.
However I have lost my copy of this and can't find anything similar online any more.
Does anyone have a copy of this or something similar?

For info what I believe my injectors are is:
280150708
14.5 ohm
165cc

my ideal would be about 190-200 cc and otherwise exactly the same. My thought is I am running at increaased fuel pressure to compensate for increased flow and boost. If I can increase the injectors a bit I can lower the fuel pressure a bit and keep the fueling the same.

Any ideas?
Click to expand...
This list?

Stan Weiss' - Electronic Fuel Injector (EFI) Flow Data Table

Electronic Fuel Injector (EFI) Flow Data Table
users.erols.com
 
RS injectors will build you high impedance that will bolt right in where the low impedance were. Hose fittings and all. I suspect they would build you low impedance as well, but I changed over when I went Megasquirt. They were not all that expensive - in the grand scheme of things.
 
If the injectors are "used" it would be wise to have them cleaned, new filters & pintle caps replaced, flow tested then flow matched by having this done on more than the required number of injectors.

Spray pattern and consistency does make a difference as does flow matching injectors.


Bernice
 
From my digging into that excel doc, this is what I found:
0280150205
These seem to be a good match, they are 16 ohms, same physical size and a 206 claimed cc/min from the spreadsheet.
They look like they are from a vauxhall senator or carlton, don't know if these made it to the US, but they made a ton of them in europe.

They looks pretty good match and even better available at a decent price on ebay either new unknown brand or used bosch :)
0280150205.webp
 
Here's a couple references. I haven't found my official Bosch data yet, but here are some others:

Flow-rate chart (not the Bosch one)...
motorwestperformance.com

Fuel Injector Flow Rates and Specs

Here are lists demonstrating the flow rates and specifications of fuel injectors carried by MotorWest Performance for cars and trucks.
motorwestperformance.com motorwestperformance.com

Another non-Bosch chart...

fuel injector flow rates

fuel injector rebuilding,fuel injector servicing, wholesale fuel injector supply to automotive service centers,and repair facilities around the nation
www.motormanfuelinjection.com

The "BMW" injector...
www.fiveomotorsport.com

Hose-Type Injector, BMW, Jaguar - NEW Matched Sets available

<p><span style="font-size: medium; font-family: tahoma, arial, helvetica, sans-serif;"><strong>BRAND NEW FUEL INJECTOR OPTION<br /></strong><br />LIST PRICE includes a single (1) fuel injector with hose and seals</span></p> <p><span style="font-family: tahoma, arial, helvetica, sans-serif...
www.fiveomotorsport.com www.fiveomotorsport.com

The "other" option....
www.fiveomotorsport.com

High-Resistance-12 Ohms, Hose-Type Fuel Injector, Jaguar, BMW, Porsche, VW

<style>#html-body [data-pb-style=EA7D797]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll}</style><div data-content-type="row" data-appearance="contained"...
www.fiveomotorsport.com www.fiveomotorsport.com
 
Last edited:
Alex(Tenerife) said:
I am thinking of replacing/upgrading the injectors in my UT powered X.

I am sure a while ago I found a spreadsheet online of bosch fuel injectors, and on this you could look up fitting type, electrical and fuel, resistance and flow rate. This let you find something similar.
However I have lost my copy of this and can't find anything similar online any more.
Does anyone have a copy of this or something similar?

For info what I believe my injectors are is:
280150708
14.5 ohm
165cc

my ideal would be about 190-200 cc and otherwise exactly the same. My thought is I am running at increaased fuel pressure to compensate for increased flow and boost. If I can increase the injectors a bit I can lower the fuel pressure a bit and keep the fueling the same.

Any ideas?
Click to expand...
If you are going for other injectors I think you should also upgrade the ECU. A lot of options would open up. Adjusting injector flow by fuel pressure cannot be optimal.
 
Bjorn Nilson said:
If you are going for other injectors I think you should also upgrade the ECU. A lot of options would open up. Adjusting injector flow by fuel pressure cannot be optimal.
Click to expand...
Its on my mind for a future upgrade, but what I have now is increased fuel pressure and stock injectors, so I am aiming to drop the pressure and increase the injector flow. Try and balance things out a little more.

I have an FSE increasing rate fuel pressure regulator, so more fuel pressure at higher boost (they call it a power boost valve)

My thought is if I have higher rate injectors first, drop fuel pressure, I can be about the same place I am now but at lower pressure. Then when I am ready for a new ECU, I will have more fueling options.

To be honest right now it is exploring options. I have other more urgent projects to do on the car. But when I do the injector upgrade I first want to find a friendly rolling road over here. And that may be tricky.

I do really appreciate all the help you have given on this. Thanks. you guys are awsome as ever
 
Just for general reference for anyone else reading this discussion. When making any modifications to the FI system it is important to track the AFR (air fuel ratio) with a wideband sensor. Otherwise it's just guessing in the dark. And detonation will easily occur - destroying an engine in very short time. ;)
 
ebay seller that has the new injectors says they are made by DF Injection. I have not heard of them and can not find them on my quick search online.

Anyone heard of them?

Right now I am more tempted by the used bosch and have them rebuilt and checked
 
Alex(Tenerife) said:
ebay seller that has the new injectors says they are made by DF Injection. I have not heard of them and can not find them on my quick search online.

Anyone heard of them?

Right now I am more tempted by the used bosch and have them rebuilt and checked
Click to expand...

Alex, which specific ones are you referring to?
 
Looks like Bosch also makes that part:

www.injectorplanet.com

Bosch 0280150205 / Opel 90141740

Unlock Horsepower by replacing your clogged dirty injectors with our professionally 100% rebuilt Flow matched fuel injectors, your engine will run smooth and balanced for maximum performance
www.injectorplanet.com

bavarianwerke.com

Genuine Bosch Fuel injectors Opel Ascona, Kadett ,Manta, Rekord, Senator Replacement for 0280150205 Opel 8 17 409, 90141740 - Bavarianwerke

NEW and Genuine Bosch Fuel injectors Opel Ascona, Kadett ,Manta, Rekord,Senator Upgrade for 0280150205 Opel 8 17 409, 90141740
bavarianwerke.com bavarianwerke.com

www.ebay.com

Injection Valve Injector Bosch 0280150205 OPEL ASCONA 90141740 for sale online | eBay

Find many great new & used options and get the best deals for Injection Valve Injector Bosch 0280150205 OPEL ASCONA 90141740 at the best online prices at eBay! Free shipping for many products!
www.ebay.com
 
Alex(Tenerife) said:
ebay seller that has the new injectors says they are made by DF Injection. I have not heard of them and can not find them on my quick search online.

Anyone heard of them?

Right now I am more tempted by the used bosch and have them rebuilt and checked
Click to expand...
IMO, stay with known Bosch injectors. There are SO many counterfeit moto bits today that are Poooo....

If flow matching is wanted/needed, that is done by cleaning/replacing worn bits/flow testing. Flow rate of an injector is not adjustable.
This means getting a batch of injectors worked on then flow tested to sort for the injectors with the best-closest flow match.


Bernice
 
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