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Bosch Fuel injectors


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Hi Rob

 

The injector I have fitted on my six came from a Vauxhall Senator. I know these would not be available to day; I did my conversion in 1996. You could look at sourcing a set, from a scrapped 2.5 BMW, as theses are similar to our engines, in that they are the same CC and a straight six. You could then send the injectors to one of the specialists, to have them ultrasonically cleaned and inflow tested, I used a bloke off Ebay, he sent mine back with a before and after chart, showing the improvements gained.

The ones I have are yellow and are larger in diameter, than the Lucas injectors. I don’t know if there are any serial numbers on the injectors and I am reluctant to start pulling one out as the car is running so well, I don’t want to disturb anything.

 I too have used the original throttle bodies, so had to open up the holes to fit the electronic injectors. I went to the minimum depth, so that if I wished to go back to the old PI system, I could still fit the original nylon insulators, although they would have to be installed upside down, to get the “o” rings to seal.

 As with any conversion, you will have to install equipment to the engine that was not really designed to be there. I managed to get the holding down clamps. I also got the fuel rail from the Senator, but again I had to modify these to suite the six. By doing this you can save a lot of money.

Brent

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Hi Brent

Thanks for your reply was hoping to be able to get injectors to fit straight into my thottle bodies but it looks like I will have to go down the root of opening up the holes in my thottle bodies thanks once again for your help 

Rob

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Cant say about the bosches,

but  fitted Keihins,

the TBs need a 9/16th drill down em, basicly aboot 20thou moer than standard.

note this is only at the bottom part, not touching the top part at,o

 top bit seals wid the help of an O ring,or 2 if yer pedantic,

or can just use the bigg seal ont bottom oft injector

the O rings are better, as injecter dont ..wobble aboot  ,

plus ye got moer room for the bottom seal as ina GT you aint got the bonnet clearance.

 

can get em in either low or high impedence, both got + an - s for each type

low impedence, then ye,ll prob need ballast resistors, unless yer ECU can handle both.

ten a penny in scrap yards as fitted t,most jap cars

 

Aim t,get some frae a car with 120-130  ish BHP max,ish , as then the size will be aboot right

ie cyls 4 /120=30x6 cyls=180 BHP

will need t,get 2 sets cos they be a set of 4 on most cars, bigger engined cars they be too big

 

https://www.google.com/search?q=keihin+fuel+injector&client=firefox-b-d&source=lnms&tbm=isch&sa=X&ved=0ahUKEwiV1t334NLhAhUT8uAKHTcVCJMQ_AUIDygC&biw=1140&bih=673&dpr=1.5#imgdii=PdBOX7aQn01bUM:&imgrc=diZA5kHZFz9hJM:

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Mazda MX5 blue 220cc or yellow tops 280cc IIRC would probably do the job running about 80% duty cycle.

As for ecu not cheap but I'd suggest a second hand Adaptronic 420e or the newer Universal from EFI Parts in Runcorn. Email or speak to Chris. Top bloke and excellent service. He might even have a base MAP if he has done a TR in the past to get you going.The adaptronic forum is good support as well. The ecu. will run everything you could ever want from a std EFI to forced induction, traction control etc. 

Andy

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Opel Opel Saab Vectra Omega X25XE X22XE X30XE V6 Einspritzventil 0280155712
That is what I use, cheap used examples you can find on ebay for about 30 € for a complete set including wires

 

Harald

 

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On 4/15/2019 at 10:45 PM, Harald said:

Opel Opel Saab Vectra Omega X25XE X22XE X30XE V6 Einspritzventil 0280155712
That is what I use, cheap used examples you can find on ebay for about 30 € for a complete set including wires

 

Harald

+1

Jochem

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11 hours ago, rob7 said:

Would injectors from a jag xj6 3.6 be ok or would they be to much 

Rob

Errr what bit about me an others saying what t,go for  cant ye understand !!!

my bit, tried t,mek it very very simples for ye t,follow

...Aim t,get some frae a car with 120-130  ish BHP max,ish , as then the size will be aboot right

ie cyls 4 /120=30x6 cyls=180 BHP

 

re Jag 3.6 type, could fit, but they wont be right

as engines too big

powers too much

duty cycle is no right  for a TR

 

If yer really kick,n in the dark, then heed advice given frae others, who have done this themselves

found out what the pitfalls are. there are some good advice on above posts.

if ye dont, then good luk,

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Unfortunately I lost the pictures of that modification.

Maybe Jochem will ad some pictures with that solution.

After removing the material from the bodies also the surface for the bolt

holes must be set deeper and none of the holes can be used for taking

off the air pressure for the ECU and manifold pressure for the booster.

 

The bigger injectors have the simple disadvantage that they need short

times at idle and small load. As we are in the range of 3 milliseconds any

influence from voltage or anything else becomes more relevant and the

metering is not that precise.

From that reason it became a rule that under full load the injectors should have

the size that they are permanently open with a small reserve.

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On 5/2/2019 at 5:28 PM, TriumphV8 said:

Maybe Jochem will ad some pictures with that solution.

Andreas, sorry for the delay....I was unfortunately occupied with some of my other issues...

The CR Bodies were skimmed off so the fuel rail can be positioned closer since the injectors no longer need adaptors.

331541731_CRBodyModified.JPG.5aacd21b4090b7bc538c1ff0f715df50.JPG

AGDT5591.thumb.JPG.83924a554990bd163a3fd6fda189d43c.JPG

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