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Are These Injectors Dodgy?

Torques

By Torques,
in Engines & Forced Induction

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GTScotT Grand Master

GTScotT

Posted
Posted

If they are really jecs injectors then they would probably be great, however you have no real way of testing.

Why dont you find someone to highflow your stock injectors once you need to get it done?

Its cheap, easy and proven not to be too bad tune wise etc.

Torques Mentor

Torques

Posted
  • Author
Posted

Hi,

Yeah ... I'm really torn ..

Used ones I would not like buying since you never know if they're actually working alright.

(They're also hard to find)

New Nismos are double the $$$ ..

The seller claims his items are brand new, best would be to ask him for the model (number), so I can do

some research.

If it's too good to be true, it mostly isn't ;)

Torques Mentor

Torques

Posted
  • Author
Posted

Hi ... I just got feedback .. (though just one line)

--------->

they are genuine JECS 550cc injectors. Part number A46-00

-------->

I could not find much about these on the net ...

HMMMMMMMM??!!

Torques Mentor

Torques

Posted
  • Author
Posted

Ohhh ... Hi!

You aren't Stao, are you?

I was meaning to talk to you (people?) anyhow regarding this:

R33 Turbo

As for the injectors .. I would not buy any high flowed for sure, but the seller said 'New' ...

Otherwise I would not lose to much time thinking about it and just bite the bullet and buy these:

Nismo

Buy brand new injectors. I throw all mine out (800cc high flow) and replaced them with brand new set. run heaps smoother and getting 2x the amount of mileage out of the same amount of fuel.

hypergear Grand Master

hypergear

Posted
Posted

I've had hard time figuring out the cause of my test car's roughness, it turned out to be the injectors.

JECS supply OEM parts for Nissan, most of 550cc or 800cc JECS injectors that I've seen are high flows. I've been recommended by my tuner about the new ID injectors which works extremely well. I've also used brand new Power enterprise and Nismo injectors in other test cars that worked exceptionally well too. Generic highed flow injectors are unlikely to have as much droplets per spray compare to purposely built aftermarket injectors, so personally I would buy brand new purposely built injectors.

Turbo wise, every thing you need to know about high flows, different combinations of wheels and housings, installations, tuning, trouble shooting, latest ideas, innovations and solid data of each every one of them are all in our high flow thread, Its been indexed, please have a read and feel free to post up any questions.

Torques Mentor

Torques

Posted
  • Author
Posted

Hi Stao,

I will PM you after I had a read .. (I already had some reads :))

As for the injectors, so what you say is that these are possibly 'New' high flowed?

Geez .. I think they're also just delivered in a plastic bag, so probably 'origin unknown'

I really would like to save, but on the other hand having 'dodgy' injectors might be a loose end

when trying to tune your car.

And till today I always bought quality .. Tomei (pump, cams), Trust (downpipe) , HKS (boostcontroller) ... and Nistune :)

Hi there, I'm Stao, happy to give some advise with injectors. I've had hard time figuring out the cause of my test car's roughness, it turned out to be the injectors.

JECS supply OEM parts for Nissan, most of 550cc or 800cc JECS injectors that I've seen are high flows. I've been recommended by my tuner about the new ID injectors which works extremely well. I've also used brand new Power enterprise and Nismo injectors in other test cars that worked exceptionally well too. Generic highed flow injectors are unlikely to have as much droplets per spray compare to purposely built aftermarket injectors, so personally I would buy brand new purposely built injectors.

Turbo wise, every thing you need to know about high flows, different combinations of wheels and housings, installations, tuning, trouble shooting, latest ideas, innovations and solid data of each every one of them are all in our high flow thread, Its been indexed, please have a read and feel free to post up any questions.

SargeRX8 Grand Master

SargeRX8

Posted
Posted (edited)

Close your eyes and pay for the Nismos. Brand new set of genuine Nismo 740cc could be had for about $750.

I got my set, still unused but I feel comfortable with knowing what they are. JECS make alot of oem parts for Nissan. Made by JECS for Nissan Motors.

Highflowing smaller flow injectors is dick shit.

I tried to look for ways to save money when modding my car. Sure I saved but no where near what I liked it to be. I bought and sold alot of generic shit which I didn't feel comfortable with. Now Ive got a nice clutch, sexy turbo, reliable injectors, reputable ECU, quality exhaust, genuine intercooler, top of the range boost controller. It cost a little more but it will go alot further.

Edited by SargeRX8
  • 11 months later...
Torques Mentor

Torques

Posted
  • Author
Posted

True, it's not worth saving on these crucial parts I guess.

Just out of interest:

$750 sounds like a good deal .. what is the source for these?

Thanks!

Close your eyes and pay for the Nismos. Brand new set of genuine Nismo 740cc could be had for about $750.

I got my set, still unused but I feel comfortable with knowing what they are. JECS make alot of oem parts for Nissan. Made by JECS for Nissan Motors.

Highflowing smaller flow injectors is dick shit.

I tried to look for ways to save money when modding my car. Sure I saved but no where near what I liked it to be. I bought and sold alot of generic shit which I didn't feel comfortable with. Now Ive got a nice clutch, sexy turbo, reliable injectors, reputable ECU, quality exhaust, genuine intercooler, top of the range boost controller. It cost a little more but it will go alot further.

Birds Grand Master

Birds

Posted
Posted

I'll never know why people skimp on injectors, maybe because they are small parts so people don't feel like they're getting much for their dollars, but they are probably the most important modification to get right during a turbo upgrade. You'll waste a lot of dyno time trying to figure out flat spots and fuelling issues if you get it wrong.

Keep shopping around eBay and be patient...sets of 555s come up for around $450-$600 second hand all the time.

zebra Grand Master

zebra

Posted
Posted

From memory some turbo Subaru's had 550cc side feed high imp injectors

No reason to think they are high flowed....well actually they are...how do you think injectors are made?

they arent cast with little holes in them, they are all drilled by the factory, so a 270cc side feed that looks like that will have them same pintle with smaller holes drilled by the factory than a 370 or a 550

SargeRX8 Grand Master

SargeRX8

Posted
Posted

True, it's not worth saving on these crucial parts I guess.

Just out of interest:

$750 sounds like a good deal .. what is the source for these?

Thanks!

The chap I bought them from was local. I paid $650 for the set if I recall correctly. Brand new in the boxes. I checked the packaging I got from him and he bought them for more from some performance place in QLD, I can't remember the name(a while ago now) it was sunny something or sun something performance something or rather. They are up and queensland. With these injectors and alot of boost, I get about 45 - 55% injector duty, so alot of headroom.

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