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Author: Subject: Blue Injectors?
Sebastian

posted on 3/12/08 at 04:46 PM Reply With Quote
Blue Injectors?

I have an early Dunnell system which originally uses Blue injectors with low resistance about 4 ohm, but the injectors were not included in the sale, so does anybody know where the blue injectors come from.

I have a picture of the type injector in my archive "zetec" and pictures of a system with the blue ones.

So who knows what type it is?

Thanks.

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stevebubs

posted on 3/12/08 at 04:47 PM Reply With Quote
Probably Sierra Cosworth - the ones below are...


GSXR750 TBs On Zetec Pic 4 (right way up now)
GSXR750 TBs On Zetec Pic 4 (right way up now)


[Edited on 3/12/08 by stevebubs]

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Sebastian

posted on 3/12/08 at 04:54 PM Reply With Quote
They look the same, but are these also low resistance since my ECU is calibrated for this.

Looking at your archive i believe the engine in the picture is yours?

Can you see any numbers on them? and is it possible to measure the resistance for me?

Would be a great help.

[Edited on 3/12/08 by Sebastian]

[Edited on 3/12/08 by Sebastian]

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stevebubs

posted on 3/12/08 at 05:02 PM Reply With Quote
Yes - they are low impedence.

Not sure I can get to them right now but will have a hunt around

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stevebubs

posted on 3/12/08 at 05:09 PM Reply With Quote
http://www.injectorcleaning.co.uk/sale.htm may help
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v8kid

posted on 3/12/08 at 05:23 PM Reply With Quote
Same ones I use they are low resistance standard cosworth items good for at least 50hp each. Cheap as chips on ebay 'cos the cosworth boys replace them with uprated injectors
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stevebubs

posted on 3/12/08 at 05:25 PM Reply With Quote
http://www.fuelinjectorwhse.com/part.php
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turbodisplay

posted on 3/12/08 at 05:41 PM Reply With Quote
The blue injectors are the same as the earlier cosworth yellow injectors.
Ford decided to make all maintinace parts yellow, hence making them blue.
Beware that light blue exist which flow MUCH more.

Darren

NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
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Jed

posted on 3/12/08 at 06:44 PM Reply With Quote
Surely you need the part number for the injector and can't just rely on the colour of them? However lots of people just use the colour especially when talking about ones for a Cosworth unit based on the Pinto (can't think what it's called..)

If you could find out the flow rate then this site might help

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

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stevebubs

posted on 3/12/08 at 07:34 PM Reply With Quote
markings -

iw-044
2530/00

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Sebastian

posted on 3/12/08 at 07:41 PM Reply With Quote
Wow i knew there was a lot of expertise here but this is superb.

I think the Blue ones are the ones to go for, since the former owner of the system also used them, unfortuantly he used them again on his supercharged engine.

By the way is there a huge difference between the coils of a 2.0 DOHC 16v and a Silvertop 2.0 16v? The only difference i could find regards to looks is the camcover one says DOHC and the other 16v.

Thanx a lot guys.

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stevebubs

posted on 3/12/08 at 08:22 PM Reply With Quote
If you're referring to 2 engines that look almost identical but one has a cam cover reading "DOHC" and the other "ZETEC" then they're both silvertop zetecs...

The Ford DOHC is a different engine altogether

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stevebubs

posted on 3/12/08 at 08:24 PM Reply With Quote
This one is an early zetec...



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stevebubs

posted on 3/12/08 at 08:34 PM Reply With Quote
Not too sure on the coils, though - there are 2/3 variants of the coilpacks around but so long as you get the HT leads to match the coilpack then it doesn't matter which engine you fit it to.
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Sebastian

posted on 3/12/08 at 08:52 PM Reply With Quote
OK, the DOHC on the picture is the one it came of and i have a 16v Zetec i took out of a 96" Mondeo i bought so everything on the engine is standard.

So this should be OK then.

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Sebastian

posted on 3/12/08 at 09:44 PM Reply With Quote
Since the coilpack is OK i was wondering if you can gain some more BHP or Torque when fitting new sparks?

So can you? Or isn't it worth the trouble.

I am working on it now for next summer so i want to get it as good as possible.

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stevebubs

posted on 4/12/08 at 12:28 AM Reply With Quote
zetecs can be pretty sensitive to poor sparks. However lack of strong spark is normally down to poor ignition leads rather than the coil.

*However* I would fit the later coil if possible as there must have been something to prompt Ford to change the design...

[Edited on 4/12/08 by stevebubs]

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