Outer Limits 4x4 Board

Are there any injectors of a different make that will fit a 3.5 efi manifold, is there a bosch that can be used ? What injectors do Disco's use, lucas or bosch ?

I have seen modded injectors off a disco 4L from memory it squirts 4 fine jets rather than one big jet giving better combusted cos more air obviously. Not sure on lucas or bosch or other though

Rohan Canavan on this board might be able to help you out a bit more cos it was on his car it was fitted to. If not call him at Midas Lilydale
Cheers

Hi, you can use Commodore or Falcon injectors, the commodore ones have the 4 holes (plate) make sure you use series2 with the plastic caps. they recommend you replace the set, but we've had guys just replace one, without any probs.

I have also herd about 5L VN injectors bein used - correct me if I am wrong or let me know if there is a better option as I will be changing mine soon

Yes the VN V8 and V6 injectors are exactly the same injector, make sure they're series 2 with the yellow plastic caps. The falcon injectors are dirt cheap at the moment, you should be able to get some for around $50 each brand new. They flow exactly the same as the Commodore ones, but are the pintle style, which are easier to clean, which is an advantage on dual fuel applications.

But wont holden injectors flow too much for a 3.5 ? I can get v6 injectors cheap but dont know about the flow rate.

thanks.

I'd imagine the 3.8 V6 injectors would be sweet with the 3.5 as Rovers generally run on the lean side apparently.

TuffRR wrote:I'd imagine the 3.8 V6 injectors would be sweet with the 3.5 as Rovers generally run on the lean side apparently.

That is the story I have heard, run lean their whole lives

Tom

So confirmation is that the 3.8 V6 injectors are better to use than the 5L V8 injectors ? ? ?

AnthonyP wrote:So confirmation is that the 3.8 V6 injectors are better to use than the 5L V8 injectors ? ? ?

On a 3.5 - YES.

The holden 3.8 V6 and 5.0 V8 use the exact same injector, there is no difference, they are the same part number.

well now on the last two post i am confused

77Rangie wrote:The holden 3.8 V6 and 5.0 V8 use the exact same injector, there is no difference, they are the same part number.

I thought there were different holden injectors ie black vs blue.

All the Commodore injectors from Commodore VN-VT are basically identical. Originally they said that they could not be interchanged because there were flow rate differences, but the differences were because of there testing method, not because the injectors were different. Same with the Falcon injectors EA-AU 6cyl they are all interchangeable with the each other, and the commodore ones. The 901's are the one to stay away from.

Injector flow rates (As from Bosch EMC)

VN S1 146.3cc/min (metal caps) P/No. 0280150901
VN S2-VR 150.5cc/min P/No. 0280150960
VS (Exact figure not given) P/No. 0280150973
VT 150cc/min (plastic body) P/No. 0280155777
EA-EL 149.7cc/min P/No. 0280150790
AU 150.2cc/min(plastic body) P/No. 0280155844

so are the holden injectors an improvement for my 4L ? I would rather economy over performance, I need my 4L injectors cleaned and if I can pick up a new set for a good price I might replace them with the holden parts, any recommendations ? Where to get the holden parts ? Are secondhand ones out of VRs / VTs etc any chop or will they need cleaning soon as well ?

Thanks
Tom

the injectors on the 4L motor ie thor are a shorter injector than the holden injectors.on the holden injector you need to watch the fuel pressure as this also changes the flow rate and spray pattern
up to vs pressure is 280-320 kpa
vt on 270-350 kpa 3.8 motor
vt 5.7 chev 350-450 kpa (50psi)(these injectors run at 12.5 volts)
standard range rover up to the thor manifold run at 230-262 kpa (32psi)
it depends on your fuel management computer 3.5 -3.9
air flow meter can also make the car run ritch or lean
another way to overcome fuel running lean is to run a rissing pressure reg
thanks rohan

Well if commo V6 injectors can be used then i can get them from the wreckers for $8 each- bargain.

I just need some info on whether the length is going to be a problem, looking for some specs on what the rangie flow rate is, got it in the efi test sheets on my other pc, will have to power it up

Anyone care to help me if you know ?

Tom

another thing is the wiring, I assume there will be no or minimal differences

Tom

Don't forget that all these figures that have been thrown around here are actually the maximum figures and not necessarily the working pressure or flow rate of these injectors.And changeing injectors will not rectify faults with items like coolant temp.sensors,air temp. sensors,MAP sensors,MAT sensors,air flow meters or Air Mass meters.And most of the EFI injectors made since DJetronic have used the same/similar wiring plug configuration which is just one terminal being + and the other being earth.

Regards

Wayne

yeah the only problems i currently have (as far as I can tell) are a buggered vacuum advance and a set of injectors that need cleaning soon, I was going to skip the cleaning and replace them if the holden units were comparable.

I have heard that having the injectors cleaned was up to $400, i would be removing them myself and re-fitting so that should keep the cost down a bit, but if I could put a whole set of holden injectors in for even $20 each
that would interest me, and I would retain the old ones and perhaps have them cleaned or tested at a later time

What do you think ?

Tom

RaginRover wrote:yeah the only problems i currently have (as far as I can tell) are a buggered vacuum advance and a set of injectors that need cleaning soon, I was going to skip the cleaning and replace them if the holden units were comparable.

I have heard that having the injectors cleaned was up to $400, i would be removing them myself and re-fitting so that should keep the cost down a bit, but if I could put a whole set of holden injectors in for even $20 each
that would interest me, and I would retain the old ones and perhaps have them cleaned or tested at a later time

What do you think ?

Tom

The $400 price tag would only be to R&R injectors and clean,replacing seals.Pintle caps and filter baskets.Even then it is still very steep !!!

Most places charge around $30 per injector to clean injectors if they are off the vehicle.And there is an abundence of mobile guys around who will come to you for that price as well.

Wayne

LowRanger wrote:

RaginRover wrote:yeah the only problems i currently have (as far as I can tell) are a buggered vacuum advance and a set of injectors that need cleaning soon, I was going to skip the cleaning and replace them if the holden units were comparable.

I have heard that having the injectors cleaned was up to $400, i would be removing them myself and re-fitting so that should keep the cost down a bit, but if I could put a whole set of holden injectors in for even $20 each
that would interest me, and I would retain the old ones and perhaps have them cleaned or tested at a later time

What do you think ?

Tom

The $400 price tag would only be to R&R injectors and clean,replacing seals.Pintle caps and filter baskets.Even then it is still very steep !!!

Most places charge around $30 per injector to clean injectors if they are off the vehicle.And there is an abundence of mobile guys around who will come to you for that price as well.

Wayne

Thanks for the FYI

I would be happy to flow theses injectors for you for just the freight costs and the seal kit cost(approx $20) for all 8 if the book listing is correct , as no one we know has an exact flow figure on them, If they require cleaning I will clean them for $120 for the set including the seals.

For your vac advance diaphragm call:
Advance diaphragm options
ph: (07) 5428 0808

77Rangie wrote:I would be happy to flow theses injectors for you for just the freight costs and the seal kit cost(approx $20) for all 8 if the book listing is correct , as no one we know has an exact flow figure on them, If they require cleaning I will clean them for $120 for the set including the seals.

For your vac advance diaphragm call:
Advance diaphragm options
ph: (07) 5428 0808

Thanks for the offer I really appreciate it, I will PM you with some details thanks, as far as the Vacuum Advance diaphram goes wouldn't I need a special tool to separate the housing and then crimp then crimp it back together or is there a trick I don't know about ?

Thanks again
Tom

Yes Advance diaphragms open them, replace the diaphragm and then seal them again. They have exchange ones for most of the discos on the shelf and some rangie stuff. They do distributor work etc as well, they modified mine to use a Blue motor Holden V8 pickup.

77Rangie wrote:
For your vac advance diaphragm call:
Advance diaphragm options
ph: (07) 5428 0808

Just an update I call these blokes who were very helpful,
their price on an exchange unit for my 91 RR was $66inc plus a
$30 deposit which was refunded when I send the old one back,
express posted for $8 and they include a post back with the return
address on it in the box so I can send the old unit back.

Good to deal with

Thanks 77Rangie

Tom

77Rangie wrote:I would be happy to flow theses injectors for you for just the freight costs and the seal kit cost(approx $20) for all 8 if the book listing is correct , as no one we know has an exact flow figure on them, If they require cleaning I will clean them for $120 for the set including the seals.

For your vac advance diaphragm call:
Advance diaphragm options
ph: (07) 5428 0808

Hi There 77 Rangie, where are you located ? I am interested in getting the injectors looked at it you are still keen

Thanks mate

Tom

Hi There 77 Rangie, where are you located ? I am interested in getting the injectors looked at it you are still keen

Thanks mate

Tom

I am located in Toowoomba, and still keen, here is the address:

Inject-a-Carb Pty Ltd
21 Wylie Street
Toowoomba 4350


Brad

Just bringin this back from the depths as I am looking at Putting a set of Bosch VR Clubsort 5L injectors in my 3.5Efi

Once I have these what else do i need to look out for, or is it a matter of removing the fuel rail and unplugin the originals swaping and plugin back in the 5L ones and put everything back together ? ? ?