Injector replacement for more g/min

[DazzaW]

Hi guys,

New to the forum and happy to be here.

Looking to pick the brains trust and maybe this question has been asked before (recently)? I am running a YBB in a Mk2 Escort and am uprating the fuel injectors. I am using a small turbo YBP inlet manifold assembly.

I am looking at ~850cc injectors and am having some trouble identifying something suitable in Bosch and Siemens (preferred).

Does anybody know of Bosch/Siemens part numbers in that size that will directly replace the standard injectors without modifying the fuel rail or inlet?

Cheers, Dan

[Graham]

i cant help but what resistance do you need the origonal cosworth ones were low about 1.5 ohms if i remember correctly, but most modern and aftermarket ecus use high impedance 16ohm

[katana]

This should help with selection . . . . https://www.bosch-motorsport.com/con...alve_EV_14.pdf but as Graham says they will generally all be high ohms which will not match a std ecu!

[stevieturbo]

As others say, if you're stuck with the Marelli ecu, they will want low impedance injectors, which are less common these days. In normal flow ranges people use, modern high impedance circa 12 ohms are just better, and available in almost any size you'd want.
If you're on an aftermarket ecu that is what you'd be looking for.

Old low impedance stuff is just that really....old, bulky and just not great performers by comparison as most have moved away from them

The Cossie uses a very typical injector fitment, 14.0mm top and bottom and a fairly standard length, so there are still options. eg

https://www.racetronix.biz/c/fuel-in...impedance/c376

[DazzaW]

Thanks everyone,

I am sorry - I should have mentioned I am using a Haltech Platinum Sport (PS1000) which can actually drive both types but I will be looking at a modern, high impedance type. As Stevieturbo mentions, I want to take advantage of injector design improvements. Katana - thanks for that datasheet, I couldn't find these without requesting them via email from Bosch, would you have a link?

Further to my first post, I am using a YBP inlet manifold assembly and replacing the fuel rail with an Anembo billet item to suit AN fittings. The Anembo rail duplicates the YBP rail in fitment, ​so injector installation dimensions need to be as per the original Bosch 0280 155 012.
My main concerns are:

1 - I don't want to use any height adaptors as I feel this introduces failure points (potential leaks)
2 - installed length to be compatible
3 - diameters at either end to be compatible

I've looked at Siemens FI114991 as data sheet is readily available but Bosch is harder to chase down.

I've read a lot of people are using 83lb/hr Siemens items but these are the older type, hard to get and really only suited to WM. I figured there must be a modern equivalent I can use in the ol Escort to make it dance. I just want to avoid mismatches of the injector in the intake tract and fuel rail (ID) as I have this fear of leaks (my brothers car burnt down for exactly this reason).

Cheers, Dan

[Forest_rallying]

Contact Field Motorsport in Chelmsford, Essex, they should be able to give you some advice and supply you with the correct injectors.

Tommy Field's ex Mountune and has had many years experience building Cosworth engine's including the Group A and WRC Escorts of years gone by.

[katana]

Contact Field Motorsport in Chelmsford, Essex, they should be able to give you some advice and supply you with the correct injectors.

Tommy Field's ex Mountune and has had many years experience building Cosworth engine's including the Group A and WRC Escorts of years gone by.

The OP is in Aus - I think he'd prefer somewhere closer to home?

The link I provided has all the spec's given for the EV range of injectors - you'll need 14mm top & bottom O ring size and I believe 48mm long is the 'std' Bosch fitment length. Most injectors seem to have a degree of 'float' when fitted between the manifold and the fuel rail - once the rail is clamped down with good O rings on the injectors, leaks are rare!

[stevieturbo]

Exactly, you're in Australia, there will be dozens of local suppliers.

It's just a pretty standard fitment for most long style Siemens injectors,

https://www.siemensdekafuelinjectors...ev1-connector/

Or the likes of the Injector Dynamics ID1000

Some injectors can be very fussy in terms of filtration, so make sure with the modern stuff you have a filter that is around the 10 micron range or lower.

http://injectordynamics.com/order/dealers/#Australia

I wouldnt worry about using adapters, that's totally normal unless it's for some visual reasons.

Or this place https://stevensandbrennan.com/ is listed as an ASNU dealer in Australia, and would no doubt be able to sort something.

Or as you're on Haltech, no doubt Dale would be able to assist too in all regards https://www.facebook.com/TunedbyDale/

[stevieturbo]

The OP is in Aus - I think he'd prefer somewhere closer to home?

The link I provided has all the spec's given for the EV range of injectors - you'll need 14mm top & bottom O ring size and I believe 48mm long is the 'std' Bosch fitment length. Most injectors seem to have a degree of 'float' when fitted between the manifold and the fuel rail - once the rail is clamped down with good O rings on the injectors, leaks are rare!

standard "long" injectors are around 70-75mm...although that may depend how and where people measure them. 48mm sounds more like the shorties

In terms of leaks...ultimately that's down to the user. Ensure the o-rings are the correct size ( and these can be varied ), the injectors are a good snug fit in both rails and o-rings and that the rail itself is very secure and such incidents can be easily avoided.
Plus of course proepr fuel lines etc.
IMO, only use telon hoses with whatever overbraid style you prefer....personally I despise the stainless overbraid, as it looks crap and if it touches anything it can be so abrasive it will eat it's way through anything.

And NEVER used any rubber based hose with a stainless type overbraid covering. They all just seem crap and many have leaked mid hose, and you have no way to inspect the interior hose condition because of that covering

[DazzaW]

Hi guys,

Many thanks for your help - much appreciated.

Stevieturbo I'm running Aeroflow -6 (can't remember series but it'll handle E85 as well) for high pressure side and -10 for suction with filters either side of pump (Bosch 044) drawing from a Group 4 tank. I've got the stainless overbraid but it's all nicely clipped and secured so abrasion can't happen easily. Do agree with poor ability to be inspected and I'll eventually replace with another type, possibly go back to push lock. I have heard it from a friend in the business that our V8 Supercar teams have gone away from stainless overbraid for exactly the reasons you describe...

Got a bit to get on with here and will post the details of the final solution for edification of all and to close the loop.

Thanks again.

Cheers, Dan

[Forest_rallying]

[QUOTE=katana;3748191]The OP is in Aus - I think he'd prefer somewhere closer to home?

I am sure DHL will deliver there.

[katana]

I am sure DHL will deliver there.

I'm sure they would and so double the cost ! I think tying the question down to a 'Cosworth' install is clouding the issue - its about getting a correct style and flow rating,
be it, Bosch, Siemens, or whoever. I'd value local knowledge and prices / availability first. Its not as if there are no bonkers turbo'd 'import' installations coming out of
Australian tuning shops through lack of knowledge LOL!

[stevieturbo]

Hi guys,

Many thanks for your help - much appreciated.

Stevieturbo I'm running Aeroflow -6 (can't remember series but it'll handle E85 as well) for high pressure side and -10 for suction with filters either side of pump (Bosch 044) drawing from a Group 4 tank. I've got the stainless overbraid but it's all nicely clipped and secured so abrasion can't happen easily. Do agree with poor ability to be inspected and I'll eventually replace with another type, possibly go back to push lock. I have heard it from a friend in the business that our V8 Supercar teams have gone away from stainless overbraid for exactly the reasons you describe...

Got a bit to get on with here and will post the details of the final solution for edification of all and to close the loop.

Thanks again.

Cheers, Dan

As said, I wouldnt be concerned about teflon hose with a stainless overbraid in terms of integrity. I use them myself, albeit with an outer covering, not the stainless exposed as I think it looks shite.
But any sort of rubber hose encased like that is a huge no no.

[DazzaW]

Hi Stevieturbo,

I noticed (on the Haltech forums) you have some knowledge on Haltech - unless someone else shares your username? I think not haha.

I've got brand a new YB engine loom (meant to be ex Ford Motorsport - nicely covered in mesh/braid and with yellow labels for connectors) and a Bayjoo modified L6 WM ECU (says 330hp on ECU). I am going to sell the ECU as it is surplus to requirement (and not many tune them here in Oz) but am interested in using the loom at some point. Is there a patch lead that will connect my current PS1000 to the WM plug? Or is all this way too outdated and would need to make my own?

Cheers, Dan

[stevieturbo]

Longggg time ago on and old E8 yes lol.

I made up my own patch harness by cutting up an old ecu connector. The connectors themselves are relatively common on some older stuff.

or Clint at Brands Hatch Performance here in the UK offers kits or patch harnesses ( I think he's a member of TS too ? )

https://shopbhp.com/search?type=product&q=haltech+yb

https://shopbhp.com/products/ford-rs...b9fc09fe&_ss=r

Although many will say a new engine loom is a good idea anyway.

[rallyrob]

Clint at Brands Hatch Performance here in the UK offers kits or patch harnesses ( I think he's a member of TS too ? )

From what I know of Clint which I have to admit is not much I believe he is one of, if not the only, Original Founder of TS.

Not sure he has much if anything to do with it these days, I think BHP is booming.

[stevieturbo]

From his website and social media etc, he certaily seems to offer a lot of kit and still catering for the older cars etc like offering plug n play kits for the likes of a Cossie which is nice to see so people can move to modern affordable options quite easily.

[DazzaW]

Hey guys,

Just closing the loop. Ended up buying XS1000CCM 3/4 length injectors with 1/4 adaptors. Nice, Bosch based injectors that come with exhaustive test data (flow matched etc) for the tuner to salivate over. 665AUD (inc. local express courier) seemed reasonable.

Thanks again for everyone's help. Hopefully it'll be on the car and tuned by the end of the year.

Cheers, Dan