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JECS Side feed INJ for Rb25det

ADM33T
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ADM33T Explorer

ADM33T

Posted
Posted

Hi All,

Injector issue so time to change out.

Was using S15 side feeds which served their purposes well, sprung a leak.

Would rather purchase new as I have had a decent run out of them.

Looking at going JECs 550s or higher.

I know this widely debated but I don't want to go to a top feed rail.

Regardless I know I am up for a re-tune so was hoping to hear any recent feedback regarding them before I take the plunge.

Old reviews have a mixed bag of feedback regarding them.

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https://www.sau.com.au/forums/topic/466513-jecs-side-feed-inj-for-rb25det/
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Trex Grand Master

Trex

Posted
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I am in the same position as you being a 33 engine. 

You are still looking at around $900+ for some 'decent' side feeds like nismo. You are looking at the same cost going topfeed, and the injectors are new tech.

"JECS" 550+ etc as far as i am aware are still highflow injectors. They market them as standard jecs, because that's what they are, jecs injectors... that have been highflowd.

ADM33T Explorer

ADM33T

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Posted

Completely understand how they market them as Jecs and then they are high flowed etc, also understand that they are "oldish" technology, the same "oldish" technology that 33 owners were using 4-5+ years ago.

Considering I was running S15 side feeds I am hoping for recent feedback of any members who have recently installed / used and had them tuned.

As I am running a Nistune board I already anticipate a new tune will be on the cards also.

 

KiwiRS4T Grand Master

KiwiRS4T

Posted
Posted

I upgraded to 550 Deatschwerkls which i believe are actually highflowed stockers and they work ok but I think you may be able to get the better new tech injectors to fit in the sidefeed set-up (not 100% on this) but check with Scotty.

SkudR33 Proficient

SkudR33

Posted
Posted

I tried JECS 550's - it was shithouse. Tuner was so angry and the car just idled like a bush pig. I chucked the whole lot out and went top feed setup.

Take my word for it and don't waste your money on a side feed setup!

WMDC35 Experienced

WMDC35

Posted
Posted
1 hour ago, SkudR33 said:

I tried JECS 550's - it was shithouse. Tuner was so angry and the car just idled like a bush pig. I chucked the whole lot out and went top feed setup.

Take my word for it and don't waste your money on a side feed setup!

Were they second hand? Did they get cleaned/tested? Never seen trouble like that with jecs 550s, saying that if you're buying now go with top feeds for sure

SkudR33 Proficient

SkudR33

Posted
Posted
Were they second hand? Did they get cleaned/tested? Never seen trouble like that with jecs 550s, saying that if you're buying now go with top feeds for sure



I bought them of a club member, they were practically brand new. He had the original receipts and paperwork. He had bought them from a supplier in Perth who claimed they were flow matched within 2%.

I got them cleaned and tested before I installed them. The spray pattern was awful and the injectors were not flow matched within 2% error like they promise. I seriously replaced them with a top feed setup a month after I had them installed!
KiwiRS4T Grand Master

KiwiRS4T

Posted
Posted
37 minutes ago, ADM33T said:

It's def a mixed bag of responses of using re-manufactured side feeds that's for sure.

Its quite simple really - if they are in good cond they work. New tech ones work better. PM Scotty and see if he can supply new ones for your sidefeed rail.

http://scottyscustoms.com.au/

Dose Pipe Sutututu Grand Master

Dose Pipe Sutututu

Posted
Posted

Don't do it.. you'll hate yourself. 

Nismo 740s or straight to top feeds. You can fit top feeds under the stock plenum without any issues if you're using 1/2 height injectors. 

http://www.trak-life.com/diy-converting-top-feed-injectors-r33-gts-t-skyline-rb25det/

WMDC35 Experienced

WMDC35

Posted
Posted
10 hours ago, ADM33T said:

Thanks Dose, I've read a few of your reviews and feedback regarding them.

Il ponder a little more and go from there.

The top feed option just means more funds out the pocket emoji23.png

More funds in the short term, less funds in the long term, & less hating of yourself

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