While updating the Audio Specs in the AMC Ralliart Group, I noticed a question (http://www.aussiemagna.com/forums/group.php?do=discuss&discussionid=17)from Ishrub which hadn't been answered which then made me wonder what the Standard injector specs are.
Ishrub's question: "Were the injectors upgraded to 275ccc from std 3.5 240cc as suggested by some? "
This confused me a bit as I thought the standard injectors were 275cc for 3rd gen 3.5 engines. :confused:

So...
Does anyone know what the standard 3rd gen 3.0 & 3.5ltr injector sizes were?
Does anyone know if the Ralliart injectors were the same or bigger?

...and, for those who may be looking to upgrade, does anyone know if other injectors (aftermarket or from other cars eg. Pajero) will fit and what cc size they are. I'm presuming these may require an aftermarket ECU or piggyback over x% or ??cc size upgrade.

Originally posted by Tradewind:
3. 470cc injectors machined for direct fit to fuel rails - Power benefit depending on other mods - Cost $680 (hoping I can buy them cheaper and keep price to $680 otherwise a bit more) These 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.

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

Magna/Verada TH/KH, and TJ/KJ series: injectors CDH 210 for 6G72, and CDH 275 for 6G74 engine. TL/KL series use CDH 275 .
For Ralliart it says CDH 210, but I assume it is typo given that it has 6G74 engine in it. Used CD Workshop Manual as reference.

A quick Google search found this info...

Part# - CDH210 - CDH275
cc/min - 264 - 318
lb/hr - 25 - 30
Rating@(Bar) - 3 - 3
Ohm - 15.6 - 15.1
Connector - Denso - Denso

Another website has the CDH210 - 14.5 Ohms & 230cc @3bar :rant:

A quick Google search found this info...

Part# - CDH210 - CDH275
cc/min - 264 - 318
lb/hr - 25 - 30
Rating@(Bar) - 3 - 3
Ohm - 15.6 - 15.1
Connector - Denso - Denso

Those figures arnt totally correct.

Ive had 3 sets of magna V6 injectors flowed now, the last set were brand new 3.8L 380 injectors (which armin bought off me) and they flowed 288cc @ 3 bar pressure. The other 2 sets were both CDH275 3.5 units and they flowed pretty damn close to the same as the 380 ones.

The 350cc "Ford" blue injectors that are currently in my magna flowed 366cc @ 3bar pressure

Thanks Jason, that seems to be the problem. Websites don't have any info on them other than model numbers and websites that do list flow rates seem to quote different amounts. :doubt: :rant:

Those figures arnt totally correct.

Ive had 3 sets of magna V6 injectors flowed now, the last set were brand new 3.8L 380 injectors (which armin bought off me) and they flowed 288cc @ 3 bar pressure. The other 2 sets were both CDH275 3.5 units and they flowed pretty damn close to the same as the 380 ones.

The 350cc "Ford" blue injectors that are currently in my magna flowed 366cc @ 3bar pressure

They all have different readings it seems, my stock 380 injectors were flowed 305cc @ 3 bar & now I have 420's. I think there is 305 stamped on the 380 injectors as part of a serial number so maybe they are 305?

They all have different readings it seems, my stock 380 injectors were flowed 305cc @ 3 bar & now I have 420's. I think there is 305 stamped on the 380 injectors as part of a serial number so maybe they are 305?

No the stock 380 injectors are the same rating as the 3.5L as we (SKR and i) didnt have to change the injector scaling when i fitted them into my car and this was also proved by the AFR's staying the same between the 2 sets of injectors especially when compared to the current 350cc injectors that are my car now.

*Edit - DaveTJ also noted that in post 74 of my magnas build thread

Which size would you guys recommend that I use in my tj with a raptor Sc fitted?

Which size would you guys recommend that I use in my tj with a raptor Sc fitted?

450-500cc would be a good starting point

450-500cc would be a good starting point

Cool, other than the ones from raptor, which ones will fit

3000GT TT 360cc low impedance ones should (not tested yet) work just fine. You need to use the resistors in line though. but you can pick up sets for like $50 used. Might be another way for you guys to still get some performance but saving some $$ at the same time.

;1274155']3000GT TT 360cc low impedance ones should (not tested yet) work just fine. You need to use the resistors in line though. but you can pick up sets for like $50 used. Might be another way for you guys to still get some performance but saving some $$ at the same time.

you should test them for us paul :) . Worst come to worst ill just buy a new set

Cool, other than the ones from raptor, which ones will fit


does anyone know which ones will fir??

The ECU rom lists the injectors as 268cc/min

The ECU rom lists the injectors as 268cc/min

Not in any of the ECU's i have and they are 3 stock ECU's (1 TH and 2 TJ's)

The hex code seems to check out, 6D in decimal is 109, the equation for working out the cc/min is 29241/x, so 29241/109 is 268cc/min.

Admitted I could have the wrong hex location, but the value seem to be about right for 275cc injectors. Do tell what your value comes out to be?

Even share your super secret maps for all to see.

Had a set of 3.5 injectors out today (out of a KE and TH) and they had 275 printed on them.

The hex code seems to check out, 6D in decimal is 109, the equation for working out the cc/min is 29241/x, so 29241/109 is 268cc/min.

Admitted I could have the wrong hex location, but the value seem to be about right for 275cc injectors. Do tell what your value comes out to be?

Even share your super secret maps for all to see.

FFS my maps arnt super secret..... Dave/Type 40 used one of them in his magna (as the a start point) and most of the other people that have been SKR tuned have had my old 2001 aka "GTP tune" map flashed in to there ecu as a starting "base" before it is tweaked to suit there cars.

The only maps i currently have on my computer are the ones from my EVO X (untuned and tuned) and other EVO X's.

Remember each different factory tune (model to model, spec to spec) has the coding in different spots for certain maps etc, hence why some definition files wont read some ecu ROM's correctly (You should see the numerous different setups in the lastest evo, whats correct def files for my 08/09 manual is different for the 2010 manuals, it will open them but they are all mixed up and unusable.)

Oh and the injector value on the base map in the TJ ecu that weve used in my magna was 278.486 (105) but that value was never used due to the larger injectors in the current engine.

The hex code seems to check out, 6D in decimal is 109, the equation for working out the cc/min is 29241/x, so 29241/109 is 268cc/min.

Admitted I could have the wrong hex location, but the value seem to be about right for 275cc injectors. Do tell what your value comes out to be?

Even share your super secret maps for all to see.

As far as i am led to believe,Jason doesn't has any "SUPER SECRET MAPS " to share.

if you want what what he has,or what any one else that has visited SKR and had their car done,then get yourself to SKR and get your car flashed,

but seeing as your motor isnt built to the specs his is,his tune wouldn't suit your motor anyway,as all maps are started from a base point any way and tuned to suit the INDIVIDUAL motor,nothing secret there....

interesting, ones in my 3.5L are 240cc.

Remember each different factory tune (model to model, spec to spec) has the coding in different spots for certain maps etc, hence why some definition files wont read some ecu ROM's correctly

Oh and the injector value on the base map in the TJ ecu that weve used in my magna was 278.486 (105) but that value was never used due to the larger injectors in the current engine.

All the fuel and ignition maps on the TJ roms I have (series one and two exec, my gtvi and a ralliart) have the same fuel map, injector settings etc... the only bit that changes is the ignition map between the ralliart and the others.

The definition files are not that hard to make, just disassemble the rom and look at the assembly code... or just compare them in a hex editor.