Wondering what brands and flow rates people are using. I'm asking those who've replaced their stock injectors due to turbo's etc.

i got me some 6g74 in my 3.0Ltr
got then cleaned and they flow great :D

Putting bigger injectors in a car that isnt making SIGNIFICANTLY more power then it should be (i'm talking a good 30% over stock) will infact hinder performance. You'll have too much fuel compared to air and start to run REALLY rich mixtures causing all sorts of problems.

You also cant just drop bigger inejectors into a car without the proper resistance so you'd either be wiring in a resistor in line with each injector or have to find a resistor pack from the car they were supposed to be in and wire that inline with the ECU (not an easy task!)

Along with all that you'd need a fuel pump that can handle it as stock will starve the injectors for petrol causing really low fuel pressures meaning your 6 cylinder will run mega lean while 1 is getting flooded.

Overall a bad idea unless you are putting a turbo in your car or running N2O CONSTNATLY!

I learned all this after figuring out whats needed to run twin turbos from a 3000GT VR4 in my Diamante... The injectors and fuel management will be the hardest fugging part of it as the electronics involved is phenomenal!

i always thpought magna injectors were fine for lots of power, alot of the V8 guys buy 6g74 enjectors apparently

you dont replace injectors without a fully programable ecu.

180cc is what i have always thought the magna injectors were. mate got his flow tested at spot on that after a clean.

TS 2.6 astron's are pretty big aswell, lots of R31's/VL's swap over to them, even the turbos swap to them.

Putting bigger injectors in a car that isnt making SIGNIFICANTLY more power then it should be (i'm talking a good 30% over stock) will infact hinder performance. You'll have too much fuel compared to air and start to run REALLY rich mixtures causing all sorts of problems.
Well, it may not make any more power at all. Actually, the thing would run rich without tuning as TC mentioned. But, that's not what he's planning. I'm pretty sure he wants to know what else is available for use in a forced induction setup.


i always thpought magna injectors were fine for lots of power, alot of the V8 guys buy 6g74 enjectors apparently
Agreed.


180cc is what i have always thought the magna injectors were. mate got his flow tested at spot on that after a clean.
For what model Magna? The 3rd gens have two types. I think they are orange or yellow and are for the 3.0 and 3.5 respectively (I think).

The 3.0 magnas run a 210cc and the 3.5 runs a 275cc. Funny enough the new 3.8 units also run the 275cc showing how much larger they are andhow much the 3.5 have got in spare.

OUr magna turbo vehicles run a 390cc unit for those with stock engines or if you want a mean engine like mine we run 450cc units.

In both cases the units we use (meaning rpw) are direct bolt in units with no need for resistor packs or altering of fuel rails.

But they can only be used iwth either a greddy or full ecu system like a haltech e6x which has the ability to compensate for the extra fuel supply. Note I say haltech e6x and not piggy back units (Excluding greddy) like haltech interceptor or unichop cause they DO NOT have the ability to cope with the extra fuel requirements at idle it goes beyond there adjustment range of +- 20% on teh air flow meter input ratio.

THe emanage can do it cause it affects the injector output values as well.

Thanks Dave. What are the 390 and 450 injectors worth atm. What brand are the magna injectors? Bosch?


I suspect some people read my questions differently to how I wrote them :nuts:

it doesn't compensate for lag or pulse width at idle though.

what doesn't compensate? The greddy? My magna has a dead smooth idle at 700 rpm - with the big cams and very consistant fuel maps. Can't beat the emanage for providing stuff like that.

Pricing on the injectors is in our price list on our website. Just look up under magna TE - TL range

I seen in a book that magnas run 380cc injectors in the 3.5,



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The 3.0 magnas run a 210cc and the 3.5 runs a 275cc. Funny enough the new 3.8 units also run the 275cc showing how much larger they are andhow much the 3.5 have got in spare.

OUr magna turbo vehicles run a 390cc unit for those with stock engines or if you want a mean engine like mine we run 450cc units.

In both cases the units we use (meaning rpw) are direct bolt in units with no need for resistor packs or altering of fuel rails.

But they can only be used iwth either a greddy or full ecu system like a haltech e6x which has the ability to compensate for the extra fuel supply. Note I say haltech e6x and not piggy back units (Excluding greddy) like haltech interceptor or unichop cause they DO NOT have the ability to cope with the extra fuel requirements at idle it goes beyond there adjustment range of +- 20% on teh air flow meter input ratio.

THe emanage can do it cause it affects the injector output values as well.
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6 times 550cc injectors are good for 300kw at the wheels dont you make more than that power figure.

Toyota 1G-GZE Injectors approx 450cc

Yes we make around 400kw at the flywheel on our vehicle utilising 450cc injectors, a malpassi rising rate fpr unit and a 600hp internal Walbro fuel pump, talk about being right on the edge of everything.

But definitly confirm the stock injectors are 275cc units on the 3.5 magna vehicles.

Dead thread revival, now I understand better what people have been wanting for the last few years, I am sure our 470cc units should do sweet things for all people

i'm glad you had somethin useful to add. With all the useless thread mines lately i was a bit concerned. Are these 470cc units a direct swap for the standard? What is the nozzle pattern like?

Cheers, Chris

I've got 700cc units waiting to go in. :D

Yep they are a direct swap you just have to solder the new harness on. These are very easy to change
edit: You beat me to it Tim

The injectors drop straight in but require plug change for connectivity, plugs are supplied with the injectors.

Will take some pictures soon of the nozzle end if you like, they are performing flawlessly in the 6G74 and soon the 72s'


Pics later

Hey Tim, what model car are these injectors out of?

They are from some high performance Ford engine, not an Australian model and have no clue what the engine is either, then secondly we have them CNC machined to fit the Magna. They are DENSO 470cc.

So essentially the injector I ship out actually will fit nothing but a Magna V6 (and in original form will not fit a Magna), cannot be used for its original fitment ie to Ford once it is CNC machined.

A very special service that we have organised so our kits and other kits can be properly supported with enough fuelling on a per cylinder basis. We came to the Magna market prepared.

The nozzle is the most advanced techology currently in use, should be the best possible choice for maximum combustion efficiency, especially compared to the old 4 holers, or much much worse the old single hole injectors :). Nothing but the absolute best. Since they are also orange like the stockers only the keenest eye would pick a difference :) These support around 80hp per cylinder or simply 480hp per set, that will cover 98% of Magna engines with boost, those wanting much more will have to sort out their own solution