Injectors to suit application

[jlssParticipant tasvr ss View build HERE Member since: May 7, 2015 Posts: 155]

hey guys after a set of 8 injectors for a 304 Holden soon to be supercharged with a whipple 2.4 inter cooled system?? I’ve been looking at the original injectors on eBay that have been capped to higher lb from 19 up to 42??? Wondering what they are like if anyone has used them ?? Or buying the newer ls style green Bosch ones that are 42s and if I do do I need to modify them??? And also would I be better off buying a new set of say Lucas 42 ev1 style or a set of Holley or yeah any help would be awesome cheers???? :bye:  :bye:

[exec24Participant 2004 VY S2 Berlina 1996 VS 5L Sedan View build HERE Member since: April 8, 2015 Posts: 435]

im not sure if they will suit, but i currently have a set of 8, 36lb supercharged v6 injectors that have been reco’d and never used their currently on ebay too so you might have seen them already

i bought them for my 355, had them reco’d then got told wont need them

• This reply was modified 8 years, 5 months ago by  exec24.

[VRSenator065Participant Adelaide SAVR Senator LSx454 1960 Kombi (project) 1921 Nash Hot Rod (future project) View build HERE Member since: February 17, 2015 Posts: 5 777]

I just bought Injector Dynamics for mine, they are basically a Bosch motorsport injector then tweaked.  they are expensive but pretty widely regarded as one of the best.  I went ID750 for my application.

[cava454Moderator 93 VR BT1 View build HERE Member since: February 20, 2015 Posts: 2 390]

60lb minimum on this combo.

[ImmortalityParticipant 97 HSV Senator 185i 02 VX L67 Calais View build HERE Member since: August 31, 2015 Posts: 535]

Rather then just us all throwing numbers out there for what ever injector size we think it it needs the OP is better off going to one of the many online fuel injector calculators which will tell you what you will need with a lot more accuracy.  All you really need to know is the expected power output, and the fuel pressure you will be running which really depends on the injector type/brand you intend to use although most injectors are tested/rated @ either 3 bar or 3.5 bar.  The rest of the info will be on the website.

This is one I like to use https://www.rceng.com/technical.aspx

• This reply was modified 8 years, 5 months ago by  Immortality.

[VRSenator065Participant Adelaide SAVR Senator LSx454 1960 Kombi (project) 1921 Nash Hot Rod (future project) View build HERE Member since: February 17, 2015 Posts: 5 777]

^nice work Immortality, have put that link in the Tech section

[BrockParticipant Cammed slammed blown vt ss View build HERE Member since: July 4, 2016 Posts: 10]

That’s awesome info, I’m running 60lbs Siemens vdo deka injectors on e85 mafless tune runing 10 lbs boost with side mount blower on a 304 with 210/50@495 cam hypertek flat tops on a kalmaker tune, got 380hp at the tread with loads of talk. Auto 2800 hi stall, stage 11 shift kit 3:9 gears. Loving it for a 5 ltr! 100 shot noz for Xmas would be nice.

[VRSenator065Participant Adelaide SAVR Senator LSx454 1960 Kombi (project) 1921 Nash Hot Rod (future project) View build HERE Member since: February 17, 2015 Posts: 5 777]

Brock wrote:

That’s awesome info, I’m running 60lbs Siemens vdo deka injectors on e85 mafless tune runing 10 lbs boost with side mount blower on a 304 with 210/50@495 cam hypertek flat tops on a kalmaker tune, got 380hp at the tread with loads of talk. Auto 2800 hi stall, stage 11 shift kit 3:9 gears. Loving it for a 5 ltr! 100 shot noz for Xmas would be nice.

You got a build thread of this bad boy on here, or have I just missed it?  Its not in your build link on your info on the left?

[MichaelParticipant VY Calais 383ci GT42 turbo. View build HERE Member since: March 2, 2015 Posts: 208]

Someone buy my 8x 1700cc Bosch injectors.

$500

[cava454Moderator 93 VR BT1 View build HERE Member since: February 20, 2015 Posts: 2 390]

What’s your number.

[VRSenator065Participant Adelaide SAVR Senator LSx454 1960 Kombi (project) 1921 Nash Hot Rod (future project) View build HERE Member since: February 17, 2015 Posts: 5 777]

Coz i know this is crazy, but just call me maybe….

[jlssParticipant tasvr ss View build HERE Member since: May 7, 2015 Posts: 155]

Sorry for late reply guys ended up going with the bosch green 42’s was told for the setup they were the minimum. Seems to be running fine so far so fingers crossed.

[VRSenator065Participant Adelaide SAVR Senator LSx454 1960 Kombi (project) 1921 Nash Hot Rod (future project) View build HERE Member since: February 17, 2015 Posts: 5 777]

Great to hear. There’s so many ways to skin a cat…..

[sands vsParticipant vs commodore View build HERE Member since: March 1, 2015 Posts: 619]

jlss wrote:

Sorry for late reply guys ended up going with the bosch green 42’s was told for the setup they were the minimum. Seems to be running fine so far so fingers crossed.

 

Have you checked your AFR ?

[cava454Moderator 93 VR BT1 View build HERE Member since: February 20, 2015 Posts: 2 390]

Seems small for the combo. I would of gone 60’s. Leaves some head room.

• This reply was modified 7 years, 9 months ago by  cava454.

[VRSenator065Participant Adelaide SAVR Senator LSx454 1960 Kombi (project) 1921 Nash Hot Rod (future project) View build HERE Member since: February 17, 2015 Posts: 5 777]

But a prob Cav is the bigger you go the less control you have at small flows which comes into play in the tune for a streeter which spends a lot of time at very light throttle openings.  Bigger isn’t always better.  Goldilocks, not too small, not too big, but just right.

[cava454Moderator 93 VR BT1 View build HERE Member since: February 20, 2015 Posts: 2 390]

60’s trim up nicely.  Would like to see the duty cycle on those 42’s.

I’ll have big ones in mine.

• This reply was modified 7 years, 9 months ago by  Admin. Reason: language

[VRSenator065Participant Adelaide SAVR Senator LSx454 1960 Kombi (project) 1921 Nash Hot Rod (future project) View build HERE Member since: February 17, 2015 Posts: 5 777]

You should coz basially race car, lets face it, will spend most of its life at wot….

Btw, bit poor when a moderator has to be moderated for language….

[cava454Moderator 93 VR BT1 View build HERE Member since: February 20, 2015 Posts: 2 390]

Haha I forget sometimes

I still don’t know how to abuse my powers LOL

[VRSenator065Participant Adelaide SAVR Senator LSx454 1960 Kombi (project) 1921 Nash Hot Rod (future project) View build HERE Member since: February 17, 2015 Posts: 5 777]

That allright buddy, i am here to help ha ha.

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